"Search functionality without API key requirement" matching MCP connectors:
GET /v1/connectors — MCP directory API referenceMatching Connector Tools:
Rug pull risk and on-chain forensics for tokens on Solana, Ethereum, Base and Robinhood.
Reference data for prediction markets: graded resolution clarity, cross-venue links, provenance.
UI Verify is visual regression testing built for coding agents. Connect the MCP server and your agent (Claude Code, Cursor, Codex) pulls a pull request's UI changes into the conversation, views each visual diff, reads the AI judge's verdict of regression vs intended change, and accepts the intended baselines - all over MCP.
Live USPS, UPS, FedEx and DHL rates from the US: domestic, Canada, UK, Germany, Australia. No scale.
Federated search of books and papers, BibTeX/RIS citations, open-access retrieval and reading.
Conformance checker for MCP servers. Free, no key, verdicts recomputable and re-measured daily.
Catch AI-fabricated citations (real DOI + fake title). Retraction, open-access, 10,000+ CSL styles.
Read-only MCP server for the OrchestKit docs: full-text search + Markdown fetch. No auth.
Hundreds of scraping & data APIs through one key. USD pay-per-request, normalized schemas, failover.
290+ quality-scored API capabilities for AI agents across 27 countries via MCP.
FR/EN tools for French rental, frontalier & home-employment (CCN 3239) — sourced, dated answers.
Deterministic company valuation and corporate finance tools for AI agents — IRR, NPV, MOIC, DCF, WACC, enterprise value, EV multiples, CAPM, beta and sensitivity analysis via Model Context Protocol. Useful for financial analysis, equity analysis, quantitative analysis, financial projections, financial formulas and financial modeling.
Korean public procurement law: rule-engine rulings, statutes search, live court precedents
Is GitHub, npm, Cloudflare or your AI provider down right now? 20 status pages, one call.
31Smart contract security screening for Base. Check any contract or token for risk before interacting with it: Solidity source verification, upgradeable proxies and admin or mint powers, holder concentration, dangerous selectors, and B20 issuer powers. It surfaces the usual rug pull and scam indicators. The free tool needs no wallet and no API key; the paid Flash Audit (3.49 USDC over x402) returns a report with an anchored SHA-256. Payment is the only gate.
Never let your agent repeat a bug or linger on a known issue. Search 385+ failure lessons to skip known errors instantly.
Neutral freight reference + validation layer for AI agents: ADR, HS, UN/LOCODE, freight math
Browser support for web features, live from caniuse. From which version, and is it safe to ship?
31The Brain Layer for AI Trading Agents — quant calls + cross-venue arb across perp venues via MCP.
Price benchmarks, alternatives & daily price history across 17,000+ AI agents and MCP servers.
