API Development MCP Servers for Codex CLI

Building, testing and documenting APIs: specs, mock servers, contract checks. 617 API Development MCP servers on Mcprush that work with Codex CLI.

617 MCP servers

Scanned where there is a package or repository to read — the grade is on each server's page
API DevelopmentWorks with Codex CLI

A MCP for api auto-generation from OpenAPI 2/3 (private network). Takes ~1s for 1000+ APIs.reproducible results, custom request examples

5/day 1 tool
Free

MCP server for SMS + OTP. Twilio alternative for AI agents — let Claude Code, Cursor, Windsurf, and OpenCode send SMS, OTPs, and

4/day
Free

Model Context Protocol server for accessing enhanced triple-source OpenAPI directory (APIs.guru + additional APIs + custom imports)

4/day 1 tool
Free

Agent-native API client: execute/test REST/GraphQL/WS/SSE with assertions, extraction, collections

4/day 22 tools
Free
Compare
tick one more