"Tools for Data Analysis" matching MCP connectors:

MCP Verification Gate: check an MCP server or an A2A agent before you connect or delegateA

io.github.ogasurfproject-jpg

Check an A2A agent before you delegate, or an MCP server's measured conduct. Free, no key.

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.

WebMCP EvalA

com.webmcp-eval.mcp

Remote MCP that evaluates one public HTTPS URL for WebMCP readiness: intent, tools observed, what to add, what never to expose.

HooklistenerAOAuth

com.hooklistener

Webhook, email, WebSocket and tunnel testing for AI agents: capture, wait, verify, replay.

AnyHookA

net.anyhook

A webhook inbox for agents: one call returns a live URL. Mock, verify, inspect and replay.

opc-ua-nodeset-compatibility-gateC

io.github.ChanghuLiu

Deterministic release-compatibility preflight for OPC UA NodeSet2 XML.

Free platform to test MCP clients without installing anything. Create mock tools with dynamic templates, configurable delays, conditions (if/then), and response sequences. Supports JSON-RPC 2.0 over Streamable HTTP. Built-in text_echo and json_echo tools. Rate-limited tiers: anonymous (5 calls/min, 1 mock tool), registered (10 calls/min, 4 mock tools), premium (60 calls/min, unlimited). Zero setup — no install, no registration required. More info: https://www.testmcp.dev

factorytalk-import-preflightC

io.github.ChanghuLiu

Deterministic preflight for FactoryTalk View tag and alarm CSV imports before re-import.

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.

surfA

tech.geckovision

Point Gecko at an OpenAPI spec; get first-call-correct, auth-hidden agent tools.

Any API, four tools: discover, call with routing and signed receipts, verify, dispute.

Apideck Unified API MCP — 330 tools across 200+ SaaS connectors (accounting, CRM, HRIS, ATS).

Anonymous webhook capture, inspection, waiting, and response configuration for AI agents.

Webhook URLs for AI agents: receive, wait for, replay, sign and verify webhooks (Stripe, GitHub…).

Paid OpenAPI audit and API change detection for agents. $0.10 USDC per analysis via x402 on Base.

Check whether an MCP server answers, what its tools claim, and whether that claim has changed.

JMeterA

ai.jmeter.docs

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.

Ephemeral mailboxes and a mock OAuth IdP for testing email and auth flows — 39 API-driven tools covering mailboxes, mails, attachments, domains, teams, and mock identities.

Web search for agents, one x402 payment: real results, provider failover, signed receipt. $0.01.