"author:nexus-mcp-infra" matching MCP servers:

• x402-receipt-verifier

  nexus-mcp-infra

  F

  license

  -Not graded

  quality

  C

  maintenance

  Enables auditing x402 payment logs against delivery logs to issue signed proof-of-delivery receipts and verify payer spend health.

  Updated 4 days ago (2026-08-23 11:52 UTC)

• erc8004-agent-liveness

  nexus-mcp-infra

  F

  license

  -Not graded

  quality

  C

  maintenance

  Enables users to verify whether an ERC-8004-registered agent is currently reachable by resolving its on-chain registration and performing a live MCP handshake, returning verdicts such as REGISTERED_UNREACHABLE or AGENT_NOT_FOUND.

  Updated 4 days ago (2026-08-23 13:00 UTC)