"An overview of Google Workspace" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Check an A2A agent before you delegate, or an MCP server's measured conduct. Free, no key.
Serverless 15-tool B2B email deliverability, domain security, OpenAPI breaking-change release gate, LLMO /llms.txt auditor, and quantitative trading risk MCP connector.
Contract-change authorization for AI agents: preflight a change to an API or MCP contract, get a signed decision, and verify the receipt offline. Only a granted change can proceed.
Simceptor is an AI-native Mock API simulation platform with a built-in MCP server. It enables AI agents to create, inspect, update, and test dynamic mock APIs, conditional response rules, stateful session simulations, and network latency directly from context.
Find and live-check the paid x402 API for an agent task, ranked by real 30-day payers and price.
Signed declarations of HTTP API exchanges for agent handoffs. Free preparation and verification; receipt issuance costs 0.002 USDC via x402 on Base. Start and connect: https://datoka.dev/api. Signatures attest declared data, not independent truth.
GXEON services, prepaid packs from R$0.99, purchase planning, and agent buyer guidance.
API documentation drifts away from the running service, so consumers integrate against a contract nobody keeps. Routebase keeps API design, testing, mocking and documentation on one living source of truth, and this MCP server exposes that workspace to AI agents. Agents can design endpoints, write and run test suites, manage mock servers and publish documentation, always under the permissions of the connected Routebase account.
Point Gecko at an OpenAPI spec; get first-call-correct, auth-hidden agent tools.
AI product-copy samples and EUR 9 packs; free integration diagnosis and EUR 5 evidence reports.
Hosted MCP infrastructure with seven typed tools: JSON repair, JSON Schema validation, JSON to TypeScript, CSV to JSON, JSON to CSV, OpenAPI security and webhook checks. Public tool discovery; execution uses scoped Bearer keys with tool allowlists, quotas and request IDs. Free deterministic calls, no LLM calls or USDC payments. Runnable repair → validate → CSV example: https://invokeport.com/agents/workflows/json-pipeline. MCP through 2025-11-25; custom headers, no OAuth.
Surface contracts: API behavior evidence, x402 pre-payment check, MCP server preflight
Research, inference, data/web/email tools, and x402 conformance, service catalog and grade feeds.
Verified, reproduced behavior of public HTTP APIs: spec gaps, errors, pagination, auth.
Free tools: x402 endpoint directory + probe, on-chain x402 demand signal, sudoku, API pricing.
Signed deterministic checks for supplied JSON invoices, OpenAPI API contracts and JSON events.
What is known to be broken in an MCP server or API operation, with the check that found it.
Free MCP, API auth, webhook and schema diagnostics with bounded checks and safe quote routing.
Audits a sample of HTTP request URLs against explicit, documented cache-key standardization rules...
Independent checks of paid x402 data sellers and of AI-agent access to shopping and travel sites
