API Development MCP Servers for VS Code

Fire-and-forget webhooks for agents with guaranteed, retried delivery and status polling. x402

Keyless webhook endpoints: capture, wait, replay, forward, and generate types from real traffic.

Whether a token is an HTTP method

WSDL 2.0 interface count, markup discarded

Discover and call 10,000+ production APIs from one MCP server. Pay-per-call billing for AI agents.

Deterministic repository oracle for AI agents: inventory, dependency graph, frontend-backend join.

Try 26 utility REST APIs keylessly: NAICS classification, IP geo, email validation, currency.

Dynamic API tool generator for OpenAPI, GraphQL, and AsyncAPI specifications

Turn OpenAPI services into tools an agent can call under your rules.

Discover, rate and compare APIs and providers in the APIs.io catalog; manage a listing you own.

Quality scoring and progressive gates for AI-generated API tests. Stripe/Twilio profiles. Free tier.

Signed API declarations for agent handoffs. Free demo and verification; receipts cost 0.002 USDC.

Public webhook relay with signed observations, retries and verified receivers. Self-service.

Cloudflare Workers MCP server: form-backend

Behind Check and GAIP Watch, and Diagnose: A2A, MCP and OpenAPI checks with a dated change log.

Webhook capture bins for agents: get a URL, wait for webhooks, set replies, verify signatures.

Public webhook inboxes for agents. Receive OAuth redirects, payment callbacks and CI notifications.

Public HTAG discovery for MCP tools, API endpoints, OpenAPI ops, and agents.

httpbin MCP.

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

Manage Kong Konnect AI and API gateways, routes, plugins, and analytics from your agent.