Y Combinator companies API

June 4, 2026 · View on GitHub

This repository contains an unofficial API for Y Combinator companies fetched from the Y Combinator website's Algolia search index. It only includes publicly launched companies with pages on the Y Combinator website. It does not scrape the Y Combinator website, instead it uses the Algolia search index to fetch the companies in a GitHub Actions workflow that runs every day.

ℹ️ Metadata

API endpoint: https://yc-oss.github.io/api/meta.json

  • Last updated: June 4, 2026 at 2:47 AM
  • Companies: 5951
  • Batches: 50
  • Industries: 59
  • Tags: 332

💻 APIs

🏢 Companies

List of companiesAPI endpoint
All launched companieshttps://yc-oss.github.io/api/companies/all.json
Top companieshttps://yc-oss.github.io/api/companies/top.json
Black-founded companieshttps://yc-oss.github.io/api/companies/black-founded.json
Hispanic/Latino-founded companieshttps://yc-oss.github.io/api/companies/hispanic-latino-founded.json
Women-founded companieshttps://yc-oss.github.io/api/companies/women-founded.json
Not-for-profit companieshttps://yc-oss.github.io/api/companies/nonprofit.json
Companies currently hiringhttps://yc-oss.github.io/api/companies/hiring.json
Companies with public application videoshttps://yc-oss.github.io/api/companies/app-video-public.json
Companies with public demo day videoshttps://yc-oss.github.io/api/companies/demo-day-video-public.json

🎓 Batches

Companies per batch
BatchCountAPI endpoint
Winter 201266https://yc-oss.github.io/api/batches/winter-2012.json
Summer 201160https://yc-oss.github.io/api/batches/summer-2011.json
Winter 201145https://yc-oss.github.io/api/batches/winter-2011.json
Summer 201036https://yc-oss.github.io/api/batches/summer-2010.json
Winter 201027https://yc-oss.github.io/api/batches/winter-2010.json
Summer 200926https://yc-oss.github.io/api/batches/summer-2009.json
Winter 200916https://yc-oss.github.io/api/batches/winter-2009.json
Summer 200822https://yc-oss.github.io/api/batches/summer-2008.json
Winter 200821https://yc-oss.github.io/api/batches/winter-2008.json
Summer 200719https://yc-oss.github.io/api/batches/summer-2007.json
Winter 200713https://yc-oss.github.io/api/batches/winter-2007.json
Summer 200611https://yc-oss.github.io/api/batches/summer-2006.json
Winter 20067https://yc-oss.github.io/api/batches/winter-2006.json
Summer 20059https://yc-oss.github.io/api/batches/summer-2005.json
Summer 201283https://yc-oss.github.io/api/batches/summer-2012.json
Winter 201346https://yc-oss.github.io/api/batches/winter-2013.json
Summer 201352https://yc-oss.github.io/api/batches/summer-2013.json
Winter 201474https://yc-oss.github.io/api/batches/winter-2014.json
Summer 201478https://yc-oss.github.io/api/batches/summer-2014.json
Winter 2015111https://yc-oss.github.io/api/batches/winter-2015.json
Summer 2015104https://yc-oss.github.io/api/batches/summer-2015.json
Winter 2016122https://yc-oss.github.io/api/batches/winter-2016.json
Summer 2017125https://yc-oss.github.io/api/batches/summer-2017.json
Summer 2016102https://yc-oss.github.io/api/batches/summer-2016.json
Winter 2017116https://yc-oss.github.io/api/batches/winter-2017.json
Winter 2018146https://yc-oss.github.io/api/batches/winter-2018.json
Summer 2018131https://yc-oss.github.io/api/batches/summer-2018.json
Summer 2019176https://yc-oss.github.io/api/batches/summer-2019.json
Winter 2019195https://yc-oss.github.io/api/batches/winter-2019.json
Winter 2020229https://yc-oss.github.io/api/batches/winter-2020.json
Summer 2020208https://yc-oss.github.io/api/batches/summer-2020.json
Winter 2021336https://yc-oss.github.io/api/batches/winter-2021.json
Summer 2021391https://yc-oss.github.io/api/batches/summer-2021.json
Winter 2022398https://yc-oss.github.io/api/batches/winter-2022.json
Summer 2022234https://yc-oss.github.io/api/batches/summer-2022.json
Fall 2025148https://yc-oss.github.io/api/batches/fall-2025.json
Winter 2023274https://yc-oss.github.io/api/batches/winter-2023.json
Summer 2023220https://yc-oss.github.io/api/batches/summer-2023.json
Winter 2026199https://yc-oss.github.io/api/batches/winter-2026.json
Winter 2024249https://yc-oss.github.io/api/batches/winter-2024.json
Winter 2025168https://yc-oss.github.io/api/batches/winter-2025.json
Spring 2026192https://yc-oss.github.io/api/batches/spring-2026.json
Summer 2024248https://yc-oss.github.io/api/batches/summer-2024.json
Fall 202494https://yc-oss.github.io/api/batches/fall-2024.json
Spring 2025144https://yc-oss.github.io/api/batches/spring-2025.json
Summer 2025167https://yc-oss.github.io/api/batches/summer-2025.json
Summer 20268https://yc-oss.github.io/api/batches/summer-2026.json
Fall 20263https://yc-oss.github.io/api/batches/fall-2026.json
Winter 20271https://yc-oss.github.io/api/batches/winter-2027.json
Unspecified1https://yc-oss.github.io/api/batches/unspecified.json

🏭 Industries

Companies per industry
IndustryCountAPI endpoint
Agriculture30https://yc-oss.github.io/api/industries/agriculture.json
Analytics127https://yc-oss.github.io/api/industries/analytics.json
Apparel and Cosmetics50https://yc-oss.github.io/api/industries/apparel-and-cosmetics.json
Asset Management53https://yc-oss.github.io/api/industries/asset-management.json
Automotive21https://yc-oss.github.io/api/industries/automotive.json
Aviation and Space61https://yc-oss.github.io/api/industries/aviation-and-space.json
B2B3044https://yc-oss.github.io/api/industries/b2b.json
Banking and Exchange70https://yc-oss.github.io/api/industries/banking-and-exchange.json
Climate52https://yc-oss.github.io/api/industries/climate.json
Construction48https://yc-oss.github.io/api/industries/construction.json
Consumer871https://yc-oss.github.io/api/industries/consumer.json
Consumer Electronics44https://yc-oss.github.io/api/industries/consumer-electronics.json
Consumer Finance88https://yc-oss.github.io/api/industries/consumer-finance.json
Consumer Health and Wellness114https://yc-oss.github.io/api/industries/consumer-health-and-wellness.json
Content113https://yc-oss.github.io/api/industries/content.json
Credit and Lending73https://yc-oss.github.io/api/industries/credit-and-lending.json
Defense17https://yc-oss.github.io/api/industries/defense.json
Diagnostics56https://yc-oss.github.io/api/industries/diagnostics.json
Drones22https://yc-oss.github.io/api/industries/drones.json
Drug Discovery and Delivery57https://yc-oss.github.io/api/industries/drug-discovery-and-delivery.json
Education125https://yc-oss.github.io/api/industries/education.json
Energy47https://yc-oss.github.io/api/industries/energy.json
Engineering, Product and Design602https://yc-oss.github.io/api/industries/engineering-product-and-design.json
Finance and Accounting136https://yc-oss.github.io/api/industries/finance-and-accounting.json
Fintech631https://yc-oss.github.io/api/industries/fintech.json
Food and Beverage93https://yc-oss.github.io/api/industries/food-and-beverage.json
Gaming69https://yc-oss.github.io/api/industries/gaming.json
Government41https://yc-oss.github.io/api/industries/government.json
Healthcare676https://yc-oss.github.io/api/industries/healthcare.json
Healthcare IT142https://yc-oss.github.io/api/industries/healthcare-it.json
Healthcare Services73https://yc-oss.github.io/api/industries/healthcare-services.json
Home and Personal123https://yc-oss.github.io/api/industries/home-and-personal.json
Housing and Real Estate84https://yc-oss.github.io/api/industries/housing-and-real-estate.json
Human Resources82https://yc-oss.github.io/api/industries/human-resources.json
Industrial Bio33https://yc-oss.github.io/api/industries/industrial-bio.json
Industrials387https://yc-oss.github.io/api/industries/industrials.json
Infrastructure297https://yc-oss.github.io/api/industries/infrastructure.json
Insurance60https://yc-oss.github.io/api/industries/insurance.json
Job and Career Services19https://yc-oss.github.io/api/industries/job-and-career-services.json
Legal56https://yc-oss.github.io/api/industries/legal.json
Manufacturing and Robotics107https://yc-oss.github.io/api/industries/manufacturing-and-robotics.json
Marketing166https://yc-oss.github.io/api/industries/marketing.json
Medical Devices44https://yc-oss.github.io/api/industries/medical-devices.json
Office Management24https://yc-oss.github.io/api/industries/office-management.json
Operations145https://yc-oss.github.io/api/industries/operations.json
Payments124https://yc-oss.github.io/api/industries/payments.json
Productivity229https://yc-oss.github.io/api/industries/productivity.json
Real Estate and Construction158https://yc-oss.github.io/api/industries/real-estate-and-construction.json
Recruiting and Talent74https://yc-oss.github.io/api/industries/recruiting-and-talent.json
Retail130https://yc-oss.github.io/api/industries/retail.json
Sales136https://yc-oss.github.io/api/industries/sales.json
Security114https://yc-oss.github.io/api/industries/security.json
Social113https://yc-oss.github.io/api/industries/social.json
Supply Chain and Logistics133https://yc-oss.github.io/api/industries/supply-chain-and-logistics.json
Therapeutics63https://yc-oss.github.io/api/industries/therapeutics.json
Transportation Services27https://yc-oss.github.io/api/industries/transportation-services.json
Travel, Leisure and Tourism35https://yc-oss.github.io/api/industries/travel-leisure-and-tourism.json
Unspecified18https://yc-oss.github.io/api/industries/unspecified.json
Virtual and Augmented Reality20https://yc-oss.github.io/api/industries/virtual-and-augmented-reality.json

🏷️ Tags

Companies per tag
TagCountAPI endpoint
3D Printed Foods1https://yc-oss.github.io/api/tags/3d-printed-foods.json
3D Printing12https://yc-oss.github.io/api/tags/3d-printing.json
Advanced Materials7https://yc-oss.github.io/api/tags/advanced-materials.json
Advertising45https://yc-oss.github.io/api/tags/advertising.json
Aerospace38https://yc-oss.github.io/api/tags/aerospace.json
Agriculture33https://yc-oss.github.io/api/tags/agriculture.json
AI825https://yc-oss.github.io/api/tags/ai.json
AI Assistant158https://yc-oss.github.io/api/tags/ai-assistant.json
AI-Enhanced Learning44https://yc-oss.github.io/api/tags/ai-enhanced-learning.json
AI-powered Drug Discovery37https://yc-oss.github.io/api/tags/ai-powered-drug-discovery.json
AIOps57https://yc-oss.github.io/api/tags/aiops.json
Air Taxis5https://yc-oss.github.io/api/tags/air-taxis.json
Airlines4https://yc-oss.github.io/api/tags/airlines.json
Airplanes11https://yc-oss.github.io/api/tags/airplanes.json
Alternative Battery Tech2https://yc-oss.github.io/api/tags/alternative-battery-tech.json
Alternative Fuels1https://yc-oss.github.io/api/tags/alternative-fuels.json
Analytics187https://yc-oss.github.io/api/tags/analytics.json
Anti-Aging7https://yc-oss.github.io/api/tags/anti-aging.json
API143https://yc-oss.github.io/api/tags/api.json
APIs10https://yc-oss.github.io/api/tags/apis.json
Apparel4https://yc-oss.github.io/api/tags/apparel.json
AR6https://yc-oss.github.io/api/tags/ar.json
Architecture4https://yc-oss.github.io/api/tags/architecture.json
Art Trading Platforms1https://yc-oss.github.io/api/tags/art-trading-platforms.json
Artificial Intelligence939https://yc-oss.github.io/api/tags/artificial-intelligence.json
Assistive Tech6https://yc-oss.github.io/api/tags/assistive-tech.json
Augmented Reality23https://yc-oss.github.io/api/tags/augmented-reality.json
Auto Commerce5https://yc-oss.github.io/api/tags/auto-commerce.json
Automation90https://yc-oss.github.io/api/tags/automation.json
Automotive23https://yc-oss.github.io/api/tags/automotive.json
Autonomous Delivery8https://yc-oss.github.io/api/tags/autonomous-delivery.json
Autonomous Trucking11https://yc-oss.github.io/api/tags/autonomous-trucking.json
B2B1106https://yc-oss.github.io/api/tags/b2b.json
Banking as a Service26https://yc-oss.github.io/api/tags/banking-as-a-service.json
Batteryless IoT Sensors1https://yc-oss.github.io/api/tags/batteryless-iot-sensors.json
Beauty10https://yc-oss.github.io/api/tags/beauty.json
Big Data27https://yc-oss.github.io/api/tags/big-data.json
Billing5https://yc-oss.github.io/api/tags/billing.json
Biometrics7https://yc-oss.github.io/api/tags/biometrics.json
Bioplastic3https://yc-oss.github.io/api/tags/bioplastic.json
Biotech139https://yc-oss.github.io/api/tags/biotech.json
Biotechnology15https://yc-oss.github.io/api/tags/biotechnology.json
Blockchain2https://yc-oss.github.io/api/tags/blockchain.json
Booking3https://yc-oss.github.io/api/tags/booking.json
Calendar7https://yc-oss.github.io/api/tags/calendar.json
Call Center9https://yc-oss.github.io/api/tags/call-center.json
Cannabis7https://yc-oss.github.io/api/tags/cannabis.json
Carbon Capture and Removal13https://yc-oss.github.io/api/tags/carbon-capture-and-removal.json
Careers5https://yc-oss.github.io/api/tags/careers.json
Cashierless Checkout5https://yc-oss.github.io/api/tags/cashierless-checkout.json
Cell Therapy5https://yc-oss.github.io/api/tags/cell-therapy.json
Cellular Agriculture6https://yc-oss.github.io/api/tags/cellular-agriculture.json
Chat5https://yc-oss.github.io/api/tags/chat.json
Chatbot10https://yc-oss.github.io/api/tags/chatbot.json
Chatbots3https://yc-oss.github.io/api/tags/chatbots.json
China3https://yc-oss.github.io/api/tags/china.json
Civic Tech8https://yc-oss.github.io/api/tags/civic-tech.json
Clean Meat1https://yc-oss.github.io/api/tags/clean-meat.json
Climate141https://yc-oss.github.io/api/tags/climate.json
ClimateTech30https://yc-oss.github.io/api/tags/climatetech.json
Cloud Computing49https://yc-oss.github.io/api/tags/cloud-computing.json
Cloud Gaming2https://yc-oss.github.io/api/tags/cloud-gaming.json
Cloud Workload Protection5https://yc-oss.github.io/api/tags/cloud-workload-protection.json
Coding Bootcamps2https://yc-oss.github.io/api/tags/coding-bootcamps.json
Collaboration45https://yc-oss.github.io/api/tags/collaboration.json
Commercial Space Launch6https://yc-oss.github.io/api/tags/commercial-space-launch.json
Community58https://yc-oss.github.io/api/tags/community.json
Compliance72https://yc-oss.github.io/api/tags/compliance.json
Computational Storage1https://yc-oss.github.io/api/tags/computational-storage.json
Computer Vision80https://yc-oss.github.io/api/tags/computer-vision.json
Construction65https://yc-oss.github.io/api/tags/construction.json
Consumer243https://yc-oss.github.io/api/tags/consumer.json
Consumer Finance32https://yc-oss.github.io/api/tags/consumer-finance.json
Consumer Health Services105https://yc-oss.github.io/api/tags/consumer-health-services.json
Consumer Products14https://yc-oss.github.io/api/tags/consumer-products.json
Conversational AI46https://yc-oss.github.io/api/tags/conversational-ai.json
Conversational Banking2https://yc-oss.github.io/api/tags/conversational-banking.json
COVID-194https://yc-oss.github.io/api/tags/covid-19.json
Creator Economy33https://yc-oss.github.io/api/tags/creator-economy.json
CRISPR4https://yc-oss.github.io/api/tags/crispr.json
CRM21https://yc-oss.github.io/api/tags/crm.json
Crowdfunding9https://yc-oss.github.io/api/tags/crowdfunding.json
Crowdsourcing4https://yc-oss.github.io/api/tags/crowdsourcing.json
Crypto / Web392https://yc-oss.github.io/api/tags/crypto-web3.json
Cryptocurrency11https://yc-oss.github.io/api/tags/cryptocurrency.json
Cryptography3https://yc-oss.github.io/api/tags/cryptography.json
Cultivated Meat2https://yc-oss.github.io/api/tags/cultivated-meat.json
Culture3https://yc-oss.github.io/api/tags/culture.json
Cultured Meat3https://yc-oss.github.io/api/tags/cultured-meat.json
Customer Service22https://yc-oss.github.io/api/tags/customer-service.json
Customer Success25https://yc-oss.github.io/api/tags/customer-success.json
Customer Support29https://yc-oss.github.io/api/tags/customer-support.json
Customization2https://yc-oss.github.io/api/tags/customization.json
Cyber Insurance1https://yc-oss.github.io/api/tags/cyber-insurance.json
Cybersecurity42https://yc-oss.github.io/api/tags/cybersecurity.json
DAO2https://yc-oss.github.io/api/tags/dao.json
Data Engineering101https://yc-oss.github.io/api/tags/data-engineering.json
Data Labeling19https://yc-oss.github.io/api/tags/data-labeling.json
Data Science32https://yc-oss.github.io/api/tags/data-science.json
Data Visualization31https://yc-oss.github.io/api/tags/data-visualization.json
Databases24https://yc-oss.github.io/api/tags/databases.json
Dating6https://yc-oss.github.io/api/tags/dating.json
Deep Learning39https://yc-oss.github.io/api/tags/deep-learning.json
Deepfake Detection1https://yc-oss.github.io/api/tags/deepfake-detection.json
DeFi13https://yc-oss.github.io/api/tags/defi.json
Delivery54https://yc-oss.github.io/api/tags/delivery.json
Dental5https://yc-oss.github.io/api/tags/dental.json
Design29https://yc-oss.github.io/api/tags/design.json
Design Tools59https://yc-oss.github.io/api/tags/design-tools.json
Developer Tools536https://yc-oss.github.io/api/tags/developer-tools.json
DevOps50https://yc-oss.github.io/api/tags/devops.json
DevSecOps34https://yc-oss.github.io/api/tags/devsecops.json
Diagnostics31https://yc-oss.github.io/api/tags/diagnostics.json
Digital Freight Brokerage2https://yc-oss.github.io/api/tags/digital-freight-brokerage.json
Digital Health112https://yc-oss.github.io/api/tags/digital-health.json
Diversity & Inclusion3https://yc-oss.github.io/api/tags/diversity-and-inclusion.json
Documents33https://yc-oss.github.io/api/tags/documents.json
Drones33https://yc-oss.github.io/api/tags/drones.json
Drug Delivery6https://yc-oss.github.io/api/tags/drug-delivery.json
Drug discovery32https://yc-oss.github.io/api/tags/drug-discovery.json
E-Commerce40https://yc-oss.github.io/api/tags/e-commerce.json
Edge Computing Semiconductors4https://yc-oss.github.io/api/tags/edge-computing-semiconductors.json
Edtech18https://yc-oss.github.io/api/tags/edtech.json
Education162https://yc-oss.github.io/api/tags/education.json
eLearning49https://yc-oss.github.io/api/tags/elearning.json
Election Tech2https://yc-oss.github.io/api/tags/election-tech.json
Electric Vehicles24https://yc-oss.github.io/api/tags/electric-vehicles.json
Electronics10https://yc-oss.github.io/api/tags/electronics.json
Email28https://yc-oss.github.io/api/tags/email.json
Emerging Markets9https://yc-oss.github.io/api/tags/emerging-markets.json
Energy41https://yc-oss.github.io/api/tags/energy.json
Energy Storage14https://yc-oss.github.io/api/tags/energy-storage.json
Enterprise106https://yc-oss.github.io/api/tags/enterprise.json
Enterprise Software119https://yc-oss.github.io/api/tags/enterprise-software.json
Entertainment50https://yc-oss.github.io/api/tags/entertainment.json
eSports2https://yc-oss.github.io/api/tags/esports.json
Fashion20https://yc-oss.github.io/api/tags/fashion.json
Feedback6https://yc-oss.github.io/api/tags/feedback.json
Femtech5https://yc-oss.github.io/api/tags/femtech.json
Fertility Tech8https://yc-oss.github.io/api/tags/fertility-tech.json
Finance92https://yc-oss.github.io/api/tags/finance.json
FinOps30https://yc-oss.github.io/api/tags/finops.json
Fintech702https://yc-oss.github.io/api/tags/fintech.json
Fitness20https://yc-oss.github.io/api/tags/fitness.json
Food10https://yc-oss.github.io/api/tags/food.json
Food & Beverage28https://yc-oss.github.io/api/tags/food-and-beverage.json
Food Service Robots & Machines11https://yc-oss.github.io/api/tags/food-service-robots-and-machines.json
Food Tech48https://yc-oss.github.io/api/tags/food-tech.json
Fraud Detection9https://yc-oss.github.io/api/tags/fraud-detection.json
Fraud Prevention5https://yc-oss.github.io/api/tags/fraud-prevention.json
Fundraising3https://yc-oss.github.io/api/tags/fundraising.json
Furniture6https://yc-oss.github.io/api/tags/furniture.json
Fusion Energy3https://yc-oss.github.io/api/tags/fusion-energy.json
Gaming86https://yc-oss.github.io/api/tags/gaming.json
Gardening1https://yc-oss.github.io/api/tags/gardening.json
Gene Therapy14https://yc-oss.github.io/api/tags/gene-therapy.json
Generative AI258https://yc-oss.github.io/api/tags/generative-ai.json
Genetic Engineering3https://yc-oss.github.io/api/tags/genetic-engineering.json
Genomics27https://yc-oss.github.io/api/tags/genomics.json
Geographic Information System4https://yc-oss.github.io/api/tags/geographic-information-system.json
Ghost Kitchens11https://yc-oss.github.io/api/tags/ghost-kitchens.json
GovTech47https://yc-oss.github.io/api/tags/govtech.json
GraphQL3https://yc-oss.github.io/api/tags/graphql.json
Grocery31https://yc-oss.github.io/api/tags/grocery.json
Hard Tech98https://yc-oss.github.io/api/tags/hard-tech.json
Hardware140https://yc-oss.github.io/api/tags/hardware.json
Health & Wellness44https://yc-oss.github.io/api/tags/health-and-wellness.json
Health Insurance26https://yc-oss.github.io/api/tags/health-insurance.json
Health Tech172https://yc-oss.github.io/api/tags/health-tech.json
Healthcare205https://yc-oss.github.io/api/tags/healthcare.json
Healthcare IT40https://yc-oss.github.io/api/tags/healthcare-it.json
Home Automation4https://yc-oss.github.io/api/tags/home-automation.json
Home Services12https://yc-oss.github.io/api/tags/home-services.json
Housing20https://yc-oss.github.io/api/tags/housing.json
HR Tech76https://yc-oss.github.io/api/tags/hr-tech.json
Human Resources21https://yc-oss.github.io/api/tags/human-resources.json
Hydrogen Energy4https://yc-oss.github.io/api/tags/hydrogen-energy.json
Identity15https://yc-oss.github.io/api/tags/identity.json
Immigration6https://yc-oss.github.io/api/tags/immigration.json
Income Share Agreements4https://yc-oss.github.io/api/tags/income-share-agreements.json
India36https://yc-oss.github.io/api/tags/india.json
Indoor Mapping2https://yc-oss.github.io/api/tags/indoor-mapping.json
Industrial28https://yc-oss.github.io/api/tags/industrial.json
Industrial Workplace Safety4https://yc-oss.github.io/api/tags/industrial-workplace-safety.json
Infrastructure112https://yc-oss.github.io/api/tags/infrastructure.json
Insurance73https://yc-oss.github.io/api/tags/insurance.json
International6https://yc-oss.github.io/api/tags/international.json
Investing58https://yc-oss.github.io/api/tags/investing.json
Investments7https://yc-oss.github.io/api/tags/investments.json
IoT44https://yc-oss.github.io/api/tags/iot.json
IoT Security2https://yc-oss.github.io/api/tags/iot-security.json
Kids9https://yc-oss.github.io/api/tags/kids.json
Kubernetes14https://yc-oss.github.io/api/tags/kubernetes.json
Lab-on-a-chip1https://yc-oss.github.io/api/tags/lab-on-a-chip.json
Latin America20https://yc-oss.github.io/api/tags/latin-america.json
Legal39https://yc-oss.github.io/api/tags/legal.json
LegalTech52https://yc-oss.github.io/api/tags/legaltech.json
Lending17https://yc-oss.github.io/api/tags/lending.json
Lidar1https://yc-oss.github.io/api/tags/lidar.json
Live5https://yc-oss.github.io/api/tags/live.json
Livestock Health1https://yc-oss.github.io/api/tags/livestock-health.json
Location-based2https://yc-oss.github.io/api/tags/location-based.json
Logistics131https://yc-oss.github.io/api/tags/logistics.json
Machine Learning231https://yc-oss.github.io/api/tags/machine-learning.json
Manufacturing88https://yc-oss.github.io/api/tags/manufacturing.json
Maritime3https://yc-oss.github.io/api/tags/maritime.json
Market Research18https://yc-oss.github.io/api/tags/market-research.json
Marketing109https://yc-oss.github.io/api/tags/marketing.json
Marketplace305https://yc-oss.github.io/api/tags/marketplace.json
Media44https://yc-oss.github.io/api/tags/media.json
Medical Devices69https://yc-oss.github.io/api/tags/medical-devices.json
Medical Robotics5https://yc-oss.github.io/api/tags/medical-robotics.json
Mental Health10https://yc-oss.github.io/api/tags/mental-health.json
Mental Health Tech39https://yc-oss.github.io/api/tags/mental-health-tech.json
Messaging42https://yc-oss.github.io/api/tags/messaging.json
Metaverse8https://yc-oss.github.io/api/tags/metaverse.json
Microfluidics5https://yc-oss.github.io/api/tags/microfluidics.json
Microinsurance3https://yc-oss.github.io/api/tags/microinsurance.json
Mining5https://yc-oss.github.io/api/tags/mining.json
ML20https://yc-oss.github.io/api/tags/ml.json
Mobility14https://yc-oss.github.io/api/tags/mobility.json
Monitoring16https://yc-oss.github.io/api/tags/monitoring.json
Music20https://yc-oss.github.io/api/tags/music.json
Nanomedicine5https://yc-oss.github.io/api/tags/nanomedicine.json
Nanosensors4https://yc-oss.github.io/api/tags/nanosensors.json
Nanotechnology10https://yc-oss.github.io/api/tags/nanotechnology.json
Navigation4https://yc-oss.github.io/api/tags/navigation.json
Neobank50https://yc-oss.github.io/api/tags/neobank.json
Networks4https://yc-oss.github.io/api/tags/networks.json
Neurotechnology15https://yc-oss.github.io/api/tags/neurotechnology.json
Next-gen Network Security5https://yc-oss.github.io/api/tags/next-gen-network-security.json
NFT4https://yc-oss.github.io/api/tags/nft.json
NLP21https://yc-oss.github.io/api/tags/nlp.json
No-code37https://yc-oss.github.io/api/tags/no-code.json
Nonprofit25https://yc-oss.github.io/api/tags/nonprofit.json
Note-taking5https://yc-oss.github.io/api/tags/note-taking.json
Notifications2https://yc-oss.github.io/api/tags/notifications.json
Oncology20https://yc-oss.github.io/api/tags/oncology.json
Open Source166https://yc-oss.github.io/api/tags/open-source.json
Operations36https://yc-oss.github.io/api/tags/operations.json
Payments148https://yc-oss.github.io/api/tags/payments.json
Payroll17https://yc-oss.github.io/api/tags/payroll.json
Pediatrics3https://yc-oss.github.io/api/tags/pediatrics.json
Personalization10https://yc-oss.github.io/api/tags/personalization.json
Plant-based Meat2https://yc-oss.github.io/api/tags/plant-based-meat.json
Podcasts7https://yc-oss.github.io/api/tags/podcasts.json
Primary Care8https://yc-oss.github.io/api/tags/primary-care.json
Privacy19https://yc-oss.github.io/api/tags/privacy.json
Procurement13https://yc-oss.github.io/api/tags/procurement.json
Productivity164https://yc-oss.github.io/api/tags/productivity.json
Proptech84https://yc-oss.github.io/api/tags/proptech.json
Psychedelics1https://yc-oss.github.io/api/tags/psychedelics.json
Quantum Computing4https://yc-oss.github.io/api/tags/quantum-computing.json
Radar4https://yc-oss.github.io/api/tags/radar.json
Real Estate84https://yc-oss.github.io/api/tags/real-estate.json
Recommendation System4https://yc-oss.github.io/api/tags/recommendation-system.json
Recruiting66https://yc-oss.github.io/api/tags/recruiting.json
Referrals2https://yc-oss.github.io/api/tags/referrals.json
Regtech20https://yc-oss.github.io/api/tags/regtech.json
Reinforcement Learning30https://yc-oss.github.io/api/tags/reinforcement-learning.json
Remittances6https://yc-oss.github.io/api/tags/remittances.json
Remote6https://yc-oss.github.io/api/tags/remote.json
Remote Work16https://yc-oss.github.io/api/tags/remote-work.json
Renewable Energy17https://yc-oss.github.io/api/tags/renewable-energy.json
Restaurant Tech14https://yc-oss.github.io/api/tags/restaurant-tech.json
Retail48https://yc-oss.github.io/api/tags/retail.json
Retail Tech18https://yc-oss.github.io/api/tags/retail-tech.json
Reviews3https://yc-oss.github.io/api/tags/reviews.json
Ridesharing2https://yc-oss.github.io/api/tags/ridesharing.json
Robotic Process Automation31https://yc-oss.github.io/api/tags/robotic-process-automation.json
Robotic Surgery3https://yc-oss.github.io/api/tags/robotic-surgery.json
Robotics114https://yc-oss.github.io/api/tags/robotics.json
Rocketry3https://yc-oss.github.io/api/tags/rocketry.json
SaaS1104https://yc-oss.github.io/api/tags/saas.json
Sales121https://yc-oss.github.io/api/tags/sales.json
Sales Enablement37https://yc-oss.github.io/api/tags/sales-enablement.json
Satellites20https://yc-oss.github.io/api/tags/satellites.json
Scheduling10https://yc-oss.github.io/api/tags/scheduling.json
Search18https://yc-oss.github.io/api/tags/search.json
Security89https://yc-oss.github.io/api/tags/security.json
Security Orchestration, Automation and Response (SOAR)1https://yc-oss.github.io/api/tags/security-orchestration-automation-and-response-(soar).json
Self-Driving Vehicles6https://yc-oss.github.io/api/tags/self-driving-vehicles.json
Semiconductors12https://yc-oss.github.io/api/tags/semiconductors.json
SEO4https://yc-oss.github.io/api/tags/seo.json
Skincare1https://yc-oss.github.io/api/tags/skincare.json
Sleep Tech9https://yc-oss.github.io/api/tags/sleep-tech.json
Small Modular Reactors3https://yc-oss.github.io/api/tags/small-modular-reactors.json
Smart Clothing5https://yc-oss.github.io/api/tags/smart-clothing.json
Smart Home Assistants7https://yc-oss.github.io/api/tags/smart-home-assistants.json
Smart Locks1https://yc-oss.github.io/api/tags/smart-locks.json
SMB17https://yc-oss.github.io/api/tags/smb.json
SMS7https://yc-oss.github.io/api/tags/sms.json
Social73https://yc-oss.github.io/api/tags/social.json
Social Media32https://yc-oss.github.io/api/tags/social-media.json
Social Network23https://yc-oss.github.io/api/tags/social-network.json
Solar Power19https://yc-oss.github.io/api/tags/solar-power.json
Space Exploration16https://yc-oss.github.io/api/tags/space-exploration.json
Speech Recognition6https://yc-oss.github.io/api/tags/speech-recognition.json
Sports Tech18https://yc-oss.github.io/api/tags/sports-tech.json
Stocks5https://yc-oss.github.io/api/tags/stocks.json
Subscriptions39https://yc-oss.github.io/api/tags/subscriptions.json
Supply Chain83https://yc-oss.github.io/api/tags/supply-chain.json
Sustainability14https://yc-oss.github.io/api/tags/sustainability.json
Sustainable Agriculture3https://yc-oss.github.io/api/tags/sustainable-agriculture.json
Sustainable Fashion9https://yc-oss.github.io/api/tags/sustainable-fashion.json
Sustainable Tourism3https://yc-oss.github.io/api/tags/sustainable-tourism.json
Swarm AI2https://yc-oss.github.io/api/tags/swarm-ai.json
Swarm Robotics1https://yc-oss.github.io/api/tags/swarm-robotics.json
Synthetic Biology30https://yc-oss.github.io/api/tags/synthetic-biology.json
Talent Acquisition7https://yc-oss.github.io/api/tags/talent-acquisition.json
Team Collaboration17https://yc-oss.github.io/api/tags/team-collaboration.json
Telecommunications27https://yc-oss.github.io/api/tags/telecommunications.json
Telehealth27https://yc-oss.github.io/api/tags/telehealth.json
Telemedicine29https://yc-oss.github.io/api/tags/telemedicine.json
Therapeutics46https://yc-oss.github.io/api/tags/therapeutics.json
Ticketing2https://yc-oss.github.io/api/tags/ticketing.json
Time Series3https://yc-oss.github.io/api/tags/time-series.json
Trading13https://yc-oss.github.io/api/tags/trading.json
Transportation37https://yc-oss.github.io/api/tags/transportation.json
Travel49https://yc-oss.github.io/api/tags/travel.json
Trust & Safety2https://yc-oss.github.io/api/tags/trust-and-safety.json
Unmanned Vehicle3https://yc-oss.github.io/api/tags/unmanned-vehicle.json
Vertical Farming2https://yc-oss.github.io/api/tags/vertical-farming.json
Video90https://yc-oss.github.io/api/tags/video.json
Virtual Reality13https://yc-oss.github.io/api/tags/virtual-reality.json
VR Health2https://yc-oss.github.io/api/tags/vr-health.json
Warehouse Management Tech13https://yc-oss.github.io/api/tags/warehouse-management-tech.json
Weather3https://yc-oss.github.io/api/tags/weather.json
Web Development24https://yc-oss.github.io/api/tags/web-development.json
Women's Health15https://yc-oss.github.io/api/tags/women's-health.json
Workflow Automation74https://yc-oss.github.io/api/tags/workflow-automation.json

📀 Schema

Each endpoint (with the exception of meta.json) returns an array of objects. Each object has the following properties:

PropertyTypeDescription
idnumberThe company's ID decided by Y Combinator
namestringThe company's name
slugstringThe company's human-readable slug
former_namesstring[]The company's former names, if the company was renamed
small_logo_thumb_urlstringThe URL of the company's logo as a square hosted by Y Combinator
websitestringThe company's website URL
all_locationsstringThe company's locations separated by colons (;)
long_descriptionstringThe company's long description
one_linerstringThe company's one-liner description
team_sizenumberThe company's team size
highlight_blackbooleanWhether the company is highlighted for Black founders
highlight_latinxbooleanWhether the company is highlighted for Hispanic/Latino founders
highlight_womenbooleanWhether the company is highlighted for women founders
industrystringThe company's industry
subindustrystringThe company's subindustry
launched_atnumberThe company's launch date as a Unix timestamp
tagsstring[]The company's tags
top_companybooleanWhether the company is a top company
isHiringbooleanWhether the company is hiring
nonprofitbooleanWhether the company is a nonprofit
batchstringThe company's batch
statusstringThe company's status
industriesstring[]The company's industries
regionsstring[]The company's regions
stagestringThe company's stage
app_video_publicbooleanWhether the company's app video is public
demo_day_video_publicbooleanWhether the company's demo day video is public
app_answersobjectThe company's app answers
question_answersbooleanWhether the company's question answers are public
urlstringThe company's URL on the Y Combinator website
apistringThe company's API endpoint from this repository

YC also exposes signed S3 URLs for some application and demo day videos, but those URLs expire quickly. This API stores the durable app_video_public and demo_day_video_public booleans, and provides matching filtered endpoints, instead of publishing stale signed media URLs.

For example, the airbnb.json endpoint returns the following object:

{
  "id": 271,
  "name": "Airbnb",
  "slug": "airbnb",
  "former_names": [],
  "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/3e9a0092bee2ccf926e650e59c06503ec6b9ee65.png",
  "website": "http://airbnb.com",
  "all_locations": "San Francisco, CA, USA",
  "long_description": "Founded in August of 2008 and based in San Francisco, California, Airbnb is a trusted community marketplace for people to list, discover, and book unique accommodations around the world — online or from a mobile phone. Whether an apartment for a night, a castle for a week, or a villa for a month, Airbnb connects people to unique travel experiences, at any price point, in more than 33,000 cities and 192 countries. And with world-class customer service and a growing community of users, Airbnb is the easiest way for people to monetize their extra space and showcase it to an audience of millions.  \r\n\r\nNo global movement springs from individuals. It takes an entire team united behind something big. Together, we work hard, we laugh a lot, we brainstorm nonstop, we use hundreds of Post-Its a week, and we give the best high-fives in town. Headquartered in San Francisco, we have satellite offices in Dublin, London, Barcelona, Paris, Milan, Copenhagen, Berlin, Moscow, São Paolo, Sydney, and Singapore.",
  "one_liner": "Book accommodations around the world.",
  "team_size": 6132,
  "highlight_black": false,
  "highlight_latinx": false,
  "highlight_women": false,
  "industry": "Consumer",
  "subindustry": "Consumer -> Travel, Leisure and Tourism",
  "launched_at": 1326790856,
  "tags": ["Marketplace", "Travel"],
  "tags_highlighted": [],
  "top_company": true,
  "isHiring": false,
  "nonprofit": false,
  "batch": "W09",
  "status": "Public",
  "industries": ["Consumer", "Travel, Leisure and Tourism"],
  "regions": ["United States of America", "America / Canada"],
  "stage": "Growth",
  "app_video_public": false,
  "demo_day_video_public": false,
  "app_answers": null,
  "question_answers": false,
  "url": "https://www.ycombinator.com/companies/airbnb",
  "api": "https://yc-oss.github.io/api/batches/w09/airbnb.json"
}

Here are first 10 companies from the Top Companies API (https://yc-oss.github.io/api/companies/top.json):

LogoNameOne-liner
PlanGridMobile applications for the construction industry.
GustoProvides growing businesses with everything to take care of their team.
MatterportTurn physical objects and environments into 3D models in seconds.
AmplitudeDigital Analytics Platform.
SendwaveInstant, no fee international remittances.
CodecademyThe leading online learning platform for technical skills.
SegmentSoftware and APIs to collect, clean, and control customer data.
HelloSigneSignature software for small and mid-market businesses.
FivestarsCustomer loyalty and payments platform for small businesses.
GOAT GroupPlatform for the greatest products from the past, present and future.