"Understanding Integrated Knowledge Graphs" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Search and license 5,000+ fully cleared music tracks via MCP. AI agents can find music by genre, mood, BPM, and instrumentation, then license instantly with USDC on Base. No human in the loop. Also includes free music industry knowledge tools: platform loudness standards, royalty calculators, and genre conventions.
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.
AgentBridge is the only MCP server that gives AI agents access to structured China knowledge assets—university reports, industry briefings, policy analysis, and real-time web content—through x402 micropayments on Base. Everything is machine-readable, pay-per-use, and settled in USDC.
Zero-knowledge proof generation MCP server. AI agents can prove identity claims (Coinbase KYC, Country, Google OIDC, Google Workspace, Microsoft 365) without revealing personal data.
Public NFH knowledge, ownership epochs, versioned learning, Odd Jobs, and unsigned preparation.
Celestia knowledge base: CIPs, docs, forum, videos, GitHub, plus live on-chain state
Zero-knowledge attestation for agent capability and trust score claims
ZKEvidenceOracle - 14 zero-knowledge proof tools for compliance evidence: Groth16, PLONK.
Source-linked RWA tokenization knowledge for any AI: security tokens, regulation and standards.
