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Interact with Google Calendar to list events, create meetings, and find free time slots.

The intelligent MCP server for AI-assisted Godot 4 development. 35 tools for spatial intelligence, code understanding, flow tracing, and visual debugging. 22 free, full suite $19.

Find the person to contact at a company, then get a verified work email. Searching is free (Hunter-backed, returns decision-maker, phone and LinkedIn flags); you only pay to reveal the contacts you pick. Hosted endpoint, free 3 calls per email.

Manage consultancy contracts, tasks, milestones, invoices and documents from Claude, ChatGPT or VS Code. Role-based access, OAuth sign-in, included on the Free plan.

Current outdoor health risks and 48-hour hourly / 8-day daily forecasts by location. Free, no API key. Shared limit: 1,000 calls/day; 10 calls/minute per user.

Search, enrich & score 10M+ global B2B leads via MCP. 12+ endpoints (search_leads, enrich_company, score_lead, hunter_lookup, apollo_search, etc.) backed by Apollo/Hunter/Voovox/Serp. Free 3 preview leads, paid plans from $29/mo. Streamable-HTTP transport, works in Claude Code/Cursor/VS Code/Claude Desktop.

good-honker is a free conversational front end to the band Goose's show history, usable from Claude. Ask in plain English about setlists, jam charts, venue stats, song history, and upcoming shows. Every answer is fetched live from the open ElGoose.net API and credited to ElGoose; nothing is stored.

New business leads, delivered the morning the state posts the filing. The contact is the owner or an officer named on the filing — never the attorney or formation service that filed it. Every record ships their full name, mailing address, and business details — entity type, filing number, industry, registered agent — plus a phone number checked for line type and connectivity, or an email address checked for deliverability, when we find one. Built from 17 external data sources — starting with the state filing itself — and refined by 16 proprietary intelligence engines that classify, score, and pick the real decision-maker. Not a resold vendor field or a Secretary-of-State scrape. Priced per record, no minimums — browse and price for free before you buy. No account, no API key, no OAuth. Connect the door and ask your agent for new business leads by state, industry, or city.

A free, consent-based local MCP server for sending plain-text, HTML, and Markdown emails and transactional templates, with automatic recipient-consent handling.

good-wook is a free conversational front end to Phish's show history, usable from Claude. Ask in plain English about setlists, song gaps and history, jam charts, venue stats, and upcoming shows. Every answer is fetched live from the Phish.net API and credited to Phish.net; nothing is scraped or stored.

Hosted Google Ads MCP server for Claude, ChatGPT, Cursor, Claude Code and Grok. Account audits, search terms, any GAQL report, Keyword Planner ideas and volumes, recommendations, approved changes to budgets, bids and negative keywords. MCC supported. OAuth login, no developer token, free. Endpoint https://connector.get-ryze.ai/mcp

AI-powered lead generation from Google Maps. Search businesses, enrich with emails/phones/socials, score leads 0-100, export CSV. Free alternative to Apollo.io. No API keys required.

One MCP connection that gives your agent 62 real-world tools: web search, scraping, social data, enrichment, image, video and voice. Pay per call, $1 free to start.

Read-only remote MCP to find Christian churches by worship style, denomination, language, and location from GospelChannel's free global church guide.

Find the cheapest API relay or provider for any model from a price directory refreshed weekly, plus official and relay free credits. Remote, no sign-up or API key.

Search a catalog of practical AI books, read free chapters, and check a claim against its source.

Get a second opinion on a decision from an unrelated AI model before you commit. The judge argues against your plan, names the cheapest test for each doubt, and gives a verdict (solid, solid if, shaky, or doesn't hold up). Free, MIT licensed; needs an OpenRouter key for the Claude Desktop route.

Check marketing and influencer stats against primary sources: verdict (verified, misquoted, outdated, unsourced), source, safe wording. Free, no API key.

Give Claude, Cursor, and other MCP hosts one groundlink_search tool that returns verified, source-bearing results instead of unsupported guesses. 100 free queries per key, then a tenth of a cent per query.

WHO and CDC child growth percentiles, birth size, corrected age, BMI and milestones for AI assistants. Remote, free, no API key.

gtm.help turns your website into a ranked go-to-market plan. Its MCP server lets Claude, ChatGPT, Cursor and other agents read your plan, work through growth plays, draft replies to buyer conversations and update progress, plus a free analyze_site tool.

First MCP server for Guesty property management. 38 tools for reservations, guests, messaging, pricing, financials, calendars, reviews, tasks, and webhooks. Free tier with 23 tools, Pro tier with all 38.

Price estimates for new wood floors and floor sanding in Denmark, plus a coverage check by address. Free, no login, read-only. Remote endpoint: https://www.gulvbuddy.dk/mcp

Monitor brand, product and keyword mentions, discussions and momentum on Hacker News. Free snapshot; paid mention-intel via x402 USDC.

See your salon's free slots, appointments, stylists, services, clients, quotes and payments.

Checks that a package, module or DOI exists in its registry (npm, PyPI, crates.io, Go, Maven, NuGet, DOIs) before an agent installs, imports or cites it. Flags names models invent and ones squatted since. Free, no key.

Read-only batch reports for public EVM addresses across Ethereum, Base, Arbitrum One and Polygon. Includes block numbers, delegation indicators, code sizes, SHA-256 fingerprints and explorer links. Free preview; full reports cost 0.02 of a supported stablecoin, paid directly to the operator.

Screen a person or company against the OFAC SDN, EU consolidated and UK sanctions lists. Every answer names the lists screened and when each was refreshed, and a failed source is reported as partial, never as clear. Remote MCP endpoint (no sign-up): https://hatchloop.dev/mcp/sanctions-screening - free daily allowance. The UN list is not screened. Informational only, not legal advice. By Techmate (CR 1661879, Muscat, Oman).

Fresh deduplicated job-postings data API — 10.1M postings, 237 countries, REST + MCP, free 1,000 jobs/mo, paid from $10/mo.

Help keep Helena Bioinformatics' public scientific infrastructure free to use and independent.