"Understanding File Usage" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Built for human creators. Register a timestamp on Polygon proving you made something, the moment you did. Your file is never uploaded, watermarked, or altered: only its cryptographic fingerprint ever reaches spArxx.io, zero-knowledge by design. A human still provisions the account behind the connection. This is deliberate, since this registration only means something with a human behind it.
Zero-install remote MCP server for proof-of-existence file attestation.
Privacy-preserving file proofs on Solana. Files are hashed locally. Currently free, no API key.
Preflight utility evidence, open a $149 scan checkout, and file scoped buyer intake.
Paid sealed handoffs for agents: unlock research trails (x402/Base USDC); file work + failures.
Keyless x402 compliance on Base: $0.001 OFAC wallet screen, $0.05 pack, $0.95 company file.
Proof primitive for AI agents on MultiversX. Anchor file hashes on-chain as verifiable proofs.
