> You are reading the Docusign Developer Documentation. For clean Markdown of any page, append .md to the page URL.
>
> Documentation indexes by section:
> - APIs and SDKs: https://docusign.docs.buildwithfern.com/docs/llms.txt
> - Platform 101: https://docusign.docs.buildwithfern.com/platform/llms.txt
> - Extension Apps: https://docusign.docs.buildwithfern.com/extension-apps/llms.txt
> - Docusign CLI: https://docusign.docs.buildwithfern.com/docusign-cli/llms.txt
>
> Authentication (OAuth, JWT Grant, M2M): https://docusign.docs.buildwithfern.com/platform/auth
> Webhooks and Connect: https://docusign.docs.buildwithfern.com/platform/webhooks
>
> OpenAPI specifications: https://docusign.docs.buildwithfern.com/openapi.json
> MCP server: https://docusign.docs.buildwithfern.com/_mcp/server

# Building Apps with API Request Builder | Developer Conference

The API Request Builder is a new web application from Docusign that enables you to build Envelopes:create API requests quickly using a block-based user interface. You can try any eSignature feature live immediately with your own documents and data. When you're ready, you can download a ready-to-run application in any of seven languages. You can also save and share your solution with others.

[Learn More](https://www.youtube.com/watch?v=AcJ9VyfVt_k)