# Cloud9 MCP Server

**Canonical:** https://apis.io/apis/cloud9/mcp-server/  
**Provider:** Cloud9 — https://apis.io/providers/cloud9/  
**Base URL:** https://cloud9.gg/wp-json/mcp/mcp-oauth-server  
**Documentation:** https://cloud9.gg/

Cloud9 MCP Server is one of 3 APIs that [Cloud9](https://apis.io/providers/cloud9/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include MCP, Agents, and Content.

A remote Model Context Protocol server published on cloud9.gg and advertised through RFC 8414 OAuth authorization-server metadata and RFC 9728 protected-resource metadata. It is the WordPress MCP adapter fronting the Cloud9 content estate, exposed at the WordPress REST namespace `mcp` with two servers — mcp-oauth-server and mcp-adapter-default-server — plus the companion wp-abilities/v1 namespace. Authorization is OAuth 2.1 authorization code with PKCE (S256), a single coarse `mcp` scope, public clients (token_endpoint_auth_method none) and client-ID metadata documents rather than RFC 7591 dynamic registration. An anonymous tools/list call returns 401 with a well-formed WWW-Authenticate Bearer challenge carrying the resource_metadata pointer, so the live tool list and per-tool inputSchema require an authorized session. No tool inventory is published anywhere public, so none is recorded here.

## Machine-readable artifacts (3)

- **MCPServer** — https://raw.githubusercontent.com/api-evangelist/cloud9/refs/heads/main/mcp/cloud9-mcp.yml
- **ToolCrosswalk** — https://raw.githubusercontent.com/api-evangelist/cloud9/refs/heads/main/mcp/cloud9-tool-crosswalk.yml
- **OAuthScopes** — https://raw.githubusercontent.com/api-evangelist/cloud9/refs/heads/main/scopes/cloud9-scopes.yml

## Other Cloud9 APIs (2)

- [Cloud9 WordPress REST API](https://apis.io/apis/cloud9/wordpress-rest-api/)
- [Cloud9 Store JSON Endpoints](https://apis.io/apis/cloud9/store-json/)

## Tags

MCP, Agents, Content

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/cloud9/mcp-server/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/cloud9/.