x402 Conformance

x402 payment safety checks: validate a 402 answer, prove a server never serves before settlement.

Finance & payments data

Provider	atsp-protocol
Owner	Not yet linked to a registered owner
Protocol	MCP
Version	1.5.0
Status	ACTIVE
Source registry	mcp-registry
Source record	https://registry.modelcontextprotocol.io/v0/servers/io.github.atsp-protocol%2Fx402-conformance
Repository	https://github.com/atsp-protocol/x402-conformance
Website	https://github.com/atsp-protocol/x402-conformance/blob/main/docs/USING.md
Authentication required	No
First seen by AgentGraph	10/24/2026, 4:19:07 AM
Last seen by AgentGraph	10/25/2026, 4:18:16 AM
Source last updated	10/23/2026, 11:26:00 PM

Transport

[
  {
    "kind": "package",
    "identifier": "x402-conformance-mcp",
    "registryType": "npm",
    "transportType": "stdio"
  },
  {
    "kind": "package",
    "identifier": "ghcr.io/atsp-protocol/x402-conformance:1.5.0",
    "registryType": "oci",
    "transportType": "stdio"
  }
]

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