ProofCheck
Free x402 offer/receipt checker: verifies signatures and whether the signer fits the host.
¿Debería usar esto?
Calidad y seguridad
Basado en el análisis automatizado de las definiciones de herramientas y el cumplimiento del protocolo.
Costo de contexto
Este es el número aproximado de tokens que se consumen cada vez que las herramientas del servidor se cargan en el contexto de un modelo. Los recuentos más altos reducen la atención disponible para otras tareas.
Instalar
Instalación con un clic
Agrega esto a tu archivo `claude_desktop_config.json`:
{
"mcpServers": {
"proofcheck": {
"url": "https://proofcheck.something-agent.workers.dev/mcp"
}
}
}Puntos de conexión remotos
https://proofcheck.something-agent.workers.dev/mcpstreamable-httpQué puede hacer
Inventario de herramientas
Herramientas (5)
⚪verify_offer(offer, accepts, resource_url, trusted_pay_to)
Verify an x402 signed offer (EIP-712 or JWS): signature, expiry, match to accepts[], and signer-authorization evidence (payTo, did:web, DNS _controllers, ERC-8004). Free.
Esquema de entrada
{
"type": "object",
"properties": {
"offer": {
"type": "object",
"description": "The offer object: {format, payload?, signature, acceptIndex?}"
},
"accepts": {
"type": "array",
"description": "Optional accepts[] from the live 402 to match against",
"items": {
"type": "object"
}
},
"resource_url": {
"type": "string"
},
"trusted_pay_to": {
"type": "array",
"items": {
"type": "string"
}
}
},
"required": [
"offer"
]
}⚪verify_receipt(receipt, resource_url, payer, transaction, network, ...)
Verify an x402 signed receipt (EIP-712 or JWS) returned in the settlement response: signature, freshness, payer/resource/transaction match, signer-authorization evidence. Free.
Esquema de entrada
{
"type": "object",
"properties": {
"receipt": {
"type": "object"
},
"resource_url": {
"type": "string"
},
"payer": {
"type": "string"
},
"transaction": {
"type": "string"
},
"network": {
"type": "string"
},
"max_age_seconds": {
"type": "number"
},
"trusted_pay_to": {
"type": "array",
"items": {
"type": "string"
}
}
},
"required": [
"receipt"
]
}⚪verify_payment_required(payment_required, resource_url)
Verify every signed offer inside a PaymentRequired object (pass the decoded JSON, or the raw base64 PAYMENT-REQUIRED header). Free.
Esquema de entrada
{
"type": "object",
"properties": {
"payment_required": {
"description": "Object or base64/JSON string"
},
"resource_url": {
"type": "string"
}
},
"required": [
"payment_required"
]
}🟢preflight_x402_endpoint(url, method)
Unpaid preflight of an x402 URL: fetch its 402, summarise accepts[]/extensions, verify any signed offers and report who can vouch for the signer. Never pays. Free.
Esquema de entrada
{
"type": "object",
"properties": {
"url": {
"type": "string"
},
"method": {
"type": "string",
"enum": [
"GET",
"POST"
]
}
},
"required": [
"url"
]
}🟢lookup_erc8004_agent(chain_id, agent_id)
Read-only ERC-8004 identity lookup (owner, agentWallet, registration file, endpoint-domain verification) on Ethereum, Base, Optimism, Arbitrum, Polygon, BNB, Avalanche, Gnosis, Celo, Linea or Scroll.
Esquema de entrada
{
"type": "object",
"properties": {
"chain_id": {
"type": "integer"
},
"agent_id": {
"type": "string"
}
},
"required": [
"chain_id",
"agent_id"
]
}Comunidad
Evidencia