"How to update software" matching MCP connectors:

ship-on-friday MCP — wraps StupidAPIs (requires X-API-Key)

chaos-index MCP — wraps StupidAPIs (requires X-API-Key)

npm MCP — wraps the npm Registry API (free, no auth)

JSONPlaceholder MCP — wraps JSONPlaceholder fake REST API (free, no auth)

victorian-complaint MCP — wraps StupidAPIs (requires X-API-Key)

yc-rejection MCP — wraps StupidAPIs (requires X-API-Key)

httpbin echo: GET/POST inspection, status codes, delay, UUID, base64. Debug aid.

KeployA

io.github.keploy

End-to-end API testing — generate and run tests from OpenAPI, curl, Postman, or real user traffic.

MCP server that delivers up-to-date Bitrix24 REST API documentation.

dilli-email-validation-api-serverB

com.dillilabs.deva

An MCP server that provides tools to validate an email address using Dilli Email Validation API.

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

schrodingers-boolean MCP — wraps StupidAPIs (requires X-API-Key)

passive-aggression MCP — wraps StupidAPIs (requires X-API-Key)

mercury-number MCP — wraps StupidAPIs (requires X-API-Key)

excuse MCP — wraps StupidAPIs (requires X-API-Key)

corporate-apology MCP — wraps StupidAPIs (requires X-API-Key)

always-seven MCP — wraps StupidAPIs (requires X-API-Key)

the-committee MCP — wraps StupidAPIs (requires X-API-Key)

apology MCP — wraps StupidAPIs (requires X-API-Key)

JSON Schema validation MCP.