API Development MCP Servers for Perplexity

Meaning of HTTP 425.

Meaning of HTTP 502.

Meaning of HTTP 505.

HTTP reason-phrase catalog size

JSON Accept hint

JSON Schema keyword count, body discarded

Manage Nahook webhooks from your AI client: endpoints, deliveries, retries, environments.

Detect breaking changes, generate changelogs, diff, and validate OpenAPI specs.

Turn any task into the right API calls: discover, evaluate, and integrate public APIs.

Search otwarteAPI.pl: a catalog of public Polish & EU government/data APIs, for AI agents. Keyless.

Swagger Petstore API (v1.0.27) as MCP for testing and prototyping powered by the HAPI MCP server

Debug webhooks from your AI agent: inspect and replay captured webhooks on localhost.

HTTP status code reference MCP.

One MCP endpoint over 69 public PPN APIs: search_apis to discover, execute_api to call. Free tier.

protobuf3 message count, body discarded

Deterministic API regression checks for AI agents: snapshot a baseline, catch broken contracts.

Retry-After integer-or-date, value discarded

Any API, four tools: discover, call with routing and signed receipts, verify, dispute.

AI-native mock API server with MCP. Create REST/SOAP mocks from Claude, Cursor, or Windsurf.

MCP server for AI access to Swagger by SmartBear.

SSE Accept hint