API Development MCP Servers for Microsoft Copilot

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

Apideck Unified API MCP — 229 tools across 200+ SaaS connectors (accounting, HRIS, file storage).

Thrift field-id count, body discarded

Verify an agent's advertised route, price, payment details, and schemas against its live endpoint.

API Blueprint group count, body discarded

Cloudflare Workers MCP server: api-composition-gateway

Cloudflare Workers MCP server: api-landing

Meaning of HTTP 428.

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

Free pilot: checked JSON Schema regression examples for a limited subset; no compatibility proof.

Inspect external HTTPS 429/503 retries with server-recorded attempts, Retry-After and arrival times.

Sanctions API docs and request validation, with account-linked synthetic sandbox testing.

SOAP Envelope shape, markup discarded

Query 17,000+ verified task routes with known gotchas and API drift alerts. Free keyless reads.

Generates deterministic webhook HMAC-SHA256 fixtures and optionally verifies a supplied signature...

WSDL operation count, body discarded

X-Real-IP IPv4/IPv6 shape, value discarded

Build, validate, deploy — HTTP APIs, cron jobs, webhooks and MCP tools — from your AI client.

Cloudflare Workers MCP server: api-changelog-tracker

Connect AI agents to 580+ APIs with OAuth or API-key auth. Hosted gateway; API pricing varies.

Read-only ArcadeOps discovery for developer docs, OAuth, OpenAPI and synthetic sandbox.