"MCP servers that don't require API keys" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Every match, not the top 10. Searches your documents and returns each relevant one, with quotes.
Forecasts, official weather alerts, air quality, 20 years of history, and PV and wind production, via the Meteosource API. Hosted, with your own API key.
Multi-LLM entity enrichment: schemas, single/batch enrichment, fusion, model benchmarks.
Convert PDF bank statements into Excel and check that the balances add up. Invoices and tables too.
The right context at the right time, from the world's leading data providers. One API. 800+ tools.
DePIN network telemetry with the source, as_of time and an upstream verify URL on every value.
Follow live feeds from Twitter/X, Telegram, press releases, SEC filings and more; publish your own.
Company enrichment API: firmographics from a domain, work email or IP. Identifies website visitors.
Free, no-key MCP connector for market data in Claude, Cursor and any Streamable HTTP client. Six tools: a pre-market and after-hours gapper scanner (get_premarket_gappers: top 10 names up 10% or more, $1-$100, float under 100M, with premarket relative volume, ATR, RSI and a news-catalyst flag), plus the Market Health desk: S&P 500 valuation verdict (get_market_valuation), Fed liquidity and yield-curve series (get_macro_liquidity), cross-asset regime (get_cross_asset_regime), market breadth (get_market_breadth) and risk-score history (get_market_health_history). Ships with a ready-made prompt, premarket_gappers_brief. Nothing to sign up for. Built by TraderMatrix. The full TraderMatrix connector has 51 tools, adding options flow, dealer gamma and Apex levels, unusual activity, sector flow, wheel screeners and your own watchlists.
The company brain for your AI agents: how your business works, from the systems you already use.
Polymarket smart money: rank traders by on-chain realized PnL, read their records, follow their live fills, and buy their past trades.
Query your databases and build dashboards, Streamlit apps and reports your team logs in to.
Company data for sales and research agents: website tech stack, live open jobs from public ATS boards, a hiring-intent score and Google Ads by domain. 5 free calls a day, then pay per call with x402 (USDC on Base).
US stocks incl. delisted, futures, CPI/macro vintages, point-in-time GEX, 13F, COT, backtests.
Read and build a CloudCrane workspace: datasets, field contracts, review queue, receipts, runs.
Geospatial workspace: manage sources and maps, run spatial analysis, and publish interactive maps
One key and one balance for 2,500+ data APIs from 90+ providers. Your AI agent pays per call.
Wash-filtered intelligence for x402: categories, services, wash analysis, trends.
SPX 0DTE dealer market structure: GEX, walls, gamma flip, regime, flow. Free preview; pay per read.
94 tools, one small door: home costs, fitness, QR, barcodes, Markdown, SEO, recalls.
