builder.io
Builder.io is a visual development and content management platform for building and publishing digital experiences. It provides content delivery, content management, asset upload, and AI-assisted tooling for websites and applications.
Builder.io exposes a remote OAuth-protected MCP server, a REST Content API plus Write and Upload APIs on `cdn.builder.io`, and GraphQL content/admin APIs authenticated with Builder API keys.
- Builder Content APIdiscovered
- Builder Write APIdiscovered
- Builder Upload APIdiscovered
- Builder GraphQL Content APIdiscovered
In Builder, open your Space settings and copy the Public API Key as described in Using the Builder API Key. This key is intended for client-side or read-only integrations and is commonly sent as the apiKey query parameter to Builder's content endpoints on cdn.builder.io.
In Builder, create or copy a Private API Key for your Space as described in Using the Builder API Key. The docs note this key is server-side and grants write access; Upload API says creating one requires Developer or Admin permissions. Send it in the Authorization header for private/admin APIs.
conventions · 1/8 published
- integrations.json✗
/.well-known/integrations.json - llms.txt✗
/llms.txt - API catalog✗
/.well-known/api-catalog - OpenAPI document✗
/api/schema/, /openapi.json, /swagger.json, /api/openapi.json, or /v1/openapi.json - MCP server card✗
/.well-known/mcp/server-card.json - OAuth protected resource✓https://builder.io/.well-known/oauth-protected-resource
- Agent card✗
/.well-known/agent-card.json - Agent skills✗
/.well-known/agent-skills/index.json
Publish these signals → /publishing