"Assistance with Debugging Frontend Issues Using JavaScript Code" matching MCP connectors:

Curagent analyzes Florida real estate title documents — deeds, title commitments, mortgages, and full closing packages — and returns a structured risk report in seconds: composite score, itemized findings (liens, easements, probate gaps, boundary conflicts), and AI cure guidance. Built for title companies, lenders, and real estate attorneys who need to triage title risk fast without reading every page by hand. Currently Florida-only, with more states on the way. Request an API key at curagent.io.

Live multi-asset market data for AI agents with provenance, starter credits, x402, and examples.

Teardrop is the native economic layer for AI agents, providing a robust suite of tools for multi-chain portfolio tracking, DeFi yield analysis, and gas estimation. It enables autonomous agents to securely find Web3 data and manage micro-payments on-chain with zero human intervention.

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

Eligibility-first UK & EU grant discovery, inside ChatGPT and Claude. Checks eligibility before recommending, explains why each grant fits, and cites the funder's own page on every answer — with an honest "competition_risk: unknown" when the data isn't there. 6 tools: search, fetch, find_opportunities, should_apply, explain_opportunity, complete_profile. Transport: Streamable HTTP. Auth: OAuth 2.1 + PKCE. Free to install, no card required.

AI infrastructure design agent. Describe your app in plain English; Riley designs, prices, and deploys AWS or GCP infrastructure with generated Terraform.

Universal pay-per-call tool API for AI agents. Web search, price feeds, hive memory, LLM routing, code sandbox. Free tier (10 calls/day, no signup). x402 payments on Base + Solana.

Agentic code review, no signup to try: reality gates + frontier-model review, with veto.

Educational MCP server with 17 math/stats tools, visualizations, and persistent workspace

Offline US medical code lookup and crosswalk — ICD-10-CM/PCS, HCPCS Level II, RxNorm. Keyless.

Upload, edit, compress, protect, redact, and compare PDFs with KDAN PDF in Claude and ChatGPT.

Browse Hacker News feeds, threads, and user profiles with full-text search.

First-party Spanish, Portuguese and Italian property listings with notarial-verified prices.

Official Microsoft Learn MCP Server – real-time, trusted docs & code samples for AI and LLMs.

Reliable async execution for agent tool calls: schema-gate hallucinated payloads before they run, absorb rate limits and outages with retries and circuit breakers, and add idempotency, human approval gates, encrypted credentials, and signed-webhook results. Failed calls return an llm_hint the agent can self-correct from.

Vessel tracking for 750,000+ ships, with ownership, inspections, port records, routes, and more.

B2B people and company data for AI agents. Search 700M+ professionals by role, company, and industry. Reveal verified work emails and direct phone numbers inline. Free to search, 1 credit per verified reveal. Supports Claude Desktop, Claude Code, Cursor, and any MCP client.

MCP server for Project Gutenberg — 75,000+ public-domain ebooks with full plain-text retrieval.

Ski apartment search with one- or two-week prices, availability, destinations and ski passes.

Semantic search across 50,000+ food recipes with hybrid retrieval and reranking.