"General search for 'task'" 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.
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.
Audits any URL for HTTP 402 x402 V2 compliance, PAYMENT-REQUIRED headers, Bazaar schema, and MCP.
A webhook inbox for agents: one call returns a live URL. Mock, verify, inspect and replay.
Deterministic release-compatibility preflight for OPC UA NodeSet2 XML.
Deterministic preflight for FactoryTalk View tag and alarm CSV imports before re-import.
Free *.pntr.dev dev subdomains — register subdomains, manage DNS and wildcard records, receive email on disposable inboxes, and capture HTTP requests for webhook debugging. OAuth sign-in; free tier.
Discovery registry for AI agents: 660+ APIs, MCP servers and CLIs, each health-checked every 6 hours with real requests — full initialize + tools/list handshakes for MCP, real calls for APIs — plus response-schema validation that catches responses which parse fine but are missing a required field.
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.
Point Claude Code, Qwen Code, Cursor, or any MCP client at https://docs.jmeter.ai/api/mcp and your agent answers JMeter questions grounded in this documentation, with a source link for every answer. Free, no API key, no signup.
Independent health, price and history for x402/MPP endpoints. Metered over x402; free grade on web.
AI-callable tools for API mocking, testing, monitoring, security, and automation.
Evidence-cited machine-readable contracts for how agent platform APIs really behave
Signed deterministic checks for supplied JSON invoices, OpenAPI API contracts and JSON events.
ProofRun: bounded HTTP acceptance checks for agent deployments. $0.01 USDC per pack.
Search public A2A agents and inspect read-only Agent Card and endpoint checks.
Read-only HotAPI documentation: search integration guides and inspect OpenAPI operations.
Webhook, email and DNS inboxes for AI agents to capture callbacks and test integrations.
Schema-aware API monitoring: diff OpenAPI specs for breaking changes, manage endpoints.
Anonymous webhook capture, inspection, waiting, and response configuration for AI agents.