"Free things, offers, and resources" matching MCP connectors:

500+ pay-per-call tools + skill packs. USDC + USDG on 12 chains, or free via proof-of-work.

Enumerate and inspect PubFi capabilities, then execute an exact selected route.

Independent pre-transaction audit for construction estimates. Free, and every verdict recomputes.

Verify claims, resolve FIGI identity, extract claims, and sign x402 delivery receipts over MCP.

Host-owned vacation-rental direct booking via VRP. Signed offers, 0% commission. Not an OTA.

Entity resolution — data mapping, SDK code generation, docs search, and error troubleshooting

IPStack MCP Adapter turns IPStack's REST APIs into Model Context Protocol tools so any MCP-compatible client can call them directly in conversation. The first release ships IPStack IP geolocation and security lookups (single IP, caller's IP, and bulk). Additional APILayer services are added by registering them in a single config file, so the catalog grows without client-side changes.

Fetch recent public X/Twitter posts by named handle for monitoring, comparison, OSINT, and research.

Exit-cost estimates, depth concentration, liquidity tiers, and sealed records; no commodity futures.

SEC dilution data, live market data, and news for U.S. equities, with point-in-time as-of queries

Find 76,000+ curated healthcare service vendors across 25 categories and all 50 US states.

SSRF-safe web intelligence: 4 outcomes, 43 paid x402 tools, 3 free tools and a URL preview.

US funding-stress warning with construction-PIT evidence limits and explicit eligibility flags.

Scan code for quantum-vulnerable cryptography and get NIST post-quantum migration guidance.

Signed machine messages + wallet trust gates via x402; free verifiable agent passports.

Bank and lender monitoring with historical-evidence limits and eligibility flags beside every claim.

Live tennis scores, players, rankings, odds and win-probability. ATP, WTA, Challenger, ITF, juniors.

Live internet-censorship signals and tamper-evident, pre-registered, hash-chained AI model evals.

Manage products, EU Digital Product Passports, operator parties, and GS1 EPCIS supply-chain events.

Amazon research from AMZScout data: analyze products & niches, keywords/PPC, and brand catalogs.