"Information about the Telnet Protocol or Tool" matching MCP connectors:
Matching Connector Tools:
Free platform to test MCP clients without installing anything. Create mock tools with dynamic templates, configurable delays, conditions (if/then), and response sequences. Supports JSON-RPC 2.0 over Streamable HTTP. Built-in text_echo and json_echo tools. Rate-limited tiers: anonymous (5 calls/min, 1 mock tool), registered (10 calls/min, 4 mock tools), premium (60 calls/min, unlimited). Zero setup — no install, no registration required. More info: https://www.testmcp.dev
Point Claude Code, Qwen Code, Cursor, or any MCP client at https://docs.jmeter.ai/api/mcp and your agent answers JMeter questions grounded in this documentation, with a source link for every answer. Free, no API key, no signup.
Search the JoJ API marketplace, read endpoint docs, and call any API with one key via one gateway.
MCP tool observatory: do registry servers answer, and are their answers true? No key.
Check an MCP endpoint resolves: liveness, live tool list, schema drift. Free.
Instant no-signup webhook & HTTP-request inspector for testing webhooks and agent tool-callbacks.
Verify x402 endpoints before payment or publish service profiles for agent discovery.
Remote MCP for 1,500+ APIs. Vault-managed credentials; OAuth or API key. Search, load, and execute.
End-to-end API testing — generate and run tests from OpenAPI, curl, Postman, or real user traffic.
The official MCP Server for the Mux API
Swagger Petstore API (v1.0.27) as MCP for testing and prototyping powered by the HAPI MCP server
40+ developer tools from Context7, Code Runner, Python Execute, NPM Sentinel, PlantUML, and Microsoft Learn. Docs lookup, code execution, security scanning. Starts at $0.01/call. Get your API key at app.xpay.sh or xpay.tools
A basic MCP server to operate on the Postman API.
API and website monitoring that validates the JSON a response returns, not just its status code. Create endpoint checks, pull incident reports carrying the actual failed payload, and read health scores from your editor.
API monitoring from your editor. Checks the JSON your endpoints return, not just the status code.
AI-native mock API server with MCP. Create REST/SOAP mocks from Claude, Cursor, or Windsurf.
MCP server (stdio): lint OpenAPI specs with Spectral via the AgentForge API
MCP server (stdio): check if URLs are alive (status, redirects, latency) via the AgentForge API