Conversions API parameter builder: SDK to help improve Conversions API param quality
June 9, 2026 ยท View on GitHub
Introduction
Conversions API parameter builder SDK is a lightweight tool for improving Conversions API parameter retrieval and quality. The SDK helps ensure event parameters adhere to best practices.
Parameter builder supports 5 server-side languages and 1 clientside language:
- Server-side: PHP, Java, NodeJS, Python and Ruby.
- Client-side: JavaScript.
Check Parameter Builder Library Overview for more details. In each languages' subfolder, we provide quick start guide and examples.
Latest Versions
| Language | Version | Package | Registry |
|---|---|---|---|
| PHP | 1.3.1 | facebook/capi-param-builder-php | Packagist |
| NodeJS | 1.3.1 | capi-param-builder-nodejs | npm |
| Python | 1.3.0 | capi-param-builder-python | PyPI |
| Java | 1.3.0 | com.facebook.capi.sdk:capi-param-builder | Maven Central |
| Ruby | 1.3.0 | capi_param_builder_ruby | RubyGems |
| Client JS | 1.3.1 | meta-capi-param-builder-clientjs | npm |
License
Conversions API parameter builder SDKs are licensed under the LICENSE file in the root directory of this source tree.