API Development MCP Servers

Meaning of HTTP 413.

Meaning of HTTP 414.

Meaning of HTTP 415.

Meaning of HTTP 422.

Meaning of HTTP 425.

Meaning of HTTP 426.

Meaning of HTTP 502.

Meaning of HTTP 511.

HTTP reason-phrase catalog size

httpbin MCP.

AI-callable tools for API mocking, testing, monitoring, security, and automation.

Cloudflare Workers MCP server: interactive-api-playground

Search the JoJ API marketplace, read endpoint docs, and call any API with one key via one gateway.

Deterministic HTTP/WebSocket testing and policy-gated API execution for AI agents.

Scores how well AI agents will use your API, 0-100, from its OpenAPI spec. Free and read-only.

Mock REST APIs, fake OAuth2/OIDC provider, uptime monitors + heartbeats, live badge/QR images.

Schema-aware API monitoring: diff OpenAPI specs for breaking changes, manage endpoints.

Free MCP, API auth, webhook and schema diagnostics with bounded checks and safe quote routing.

Stateful WebSocket session registry with per-connection Shannon entropy delta tracking for schema di

Build and operate declarative REST/Kafka services on Orion: 58 tools over the full admin API.

Deterministic JSON Schema validation with exact violations and conservative type normalization.