"nf-core" matching MCP connectors:

x402 game: take the crown, each take raises the next price 1.5x. hill_status is free.

TAG IT VerifyA

network.tagit

Verify on-chain lifecycle state and provenance of NFC-tagged physical products.

5arz-proof-of-humanA

io.github.LumiRx

Prove a real, unique human performed an action; mint a signed, verifiable Proof-of-Human credential.

Live crypto trading signals, sentiment, Polymarket analytics. Free demo + x402 micropayments.