此 MCP 可以做什么
Assesses whether a payment destination and its claimed service identity are consistent before an autonomous payment.
工具
输入模式
{'type': 'object', 'required': ['target_url'], 'properties': {'operation': {'type': 'string', 'maxLength': 160, 'description': 'Optional target operation or tool name the caller expects to invoke.'}, 'live_probe': {'type': 'boolean', 'description': 'Whether PayeeProof may perform its bounded anonymous public probe. Only safe GET or HEAD probes are eligible.'}, 'target_url': {'type': 'string', 'format': 'uri', 'description': 'Public HTTPS target URL whose machine-payment identity should be checked. Default HTTPS port 443 only.'}, 'expected_asset': {'type': 'string', 'description': 'Optional expected public payment asset identifier or symbol.'}, 'request_method': {'enum': ['GET', 'HEAD', 'POST', 'PUT', 'PATCH', 'DELETE'], 'type': 'string', 'default': 'GET', 'description': 'Method of the target operation. PayeeProof actively probes only GET or HEAD; state-changing methods require caller-observed 402 evidence.'}, 'expected_domain': {'type': 'string', 'description': 'Optional hostname the caller expects after URL normalization. Used for deterministic domain consistency checks.'}, 'expected_pay_to': {'type': 'string', 'description': 'Optional expected public payment destination. EVM addresses are normalized case-insensitively before comparison.'}, 'expected_network': {'type': 'string', 'description': 'Optional expected payment network identifier, such as a CAIP-2 network, for comparison with observed metadata.'}, 'expected_currency': {'type': 'string', 'description': 'Optional expected target pricing currency or stablecoin symbol when exposed by the target challenge.'}, 'expected_protocol': {'enum': ['x402', 'mpp'], 'type': 'string', 'description': 'Optional machine-payment protocol the caller expects the target to advertise.'}, 'observed_response': {'type': 'object', 'properties': {'link': {'type': 'string', 'description': 'Observed public Link header when relevant to target discovery or canonical identity.'}, 'location': {'type': 'string', 'description': 'Observed public Location header from a redirect. PayeeProof records but does not follow redirects.'}, 'http_status': {'type': 'integer', 'maximum': 599, 'minimum': 100, 'description': 'Observed target HTTP status, normally 402 for payment-required evidence.'}, 'observed_at': {'type': 'string', 'format': 'date-time', 'description': 'ISO 8601 timestamp indicating when the caller observed the supplied target response metadata.'}, 'content_location': {'type': 'string', 'description': 'Observed public Content-Location header when relevant to canonical resource identity.'}, 'payment_required': {'type': 'string', 'description': 'Observed public PAYMENT-REQUIRED header value from an x402 response. This is challenge metadata, not a payment credential.'}, 'www_authenticate': {'type': 'string', 'description': 'Observed public WWW-Authenticate header value, such as an MPP Payment challenge. Do not include an authorization credential.'}}, 'description': 'Optional caller-observed public target response metadata. Required for state-changing target methods. Never include a payment credential, Authorization, Cookie, or response body.', 'additionalProperties': False}, 'expected_price_cents': {'type': 'integer', 'minimum': 1, 'description': 'Optional expected target price in integer USD cents for comparison with observed public payment metadata.'}, 'expected_service_name': {'type': 'string', 'maxLength': 160, 'description': 'Optional public service name the caller expects the target payment challenge or discovery metadata to identify.'}}, 'additionalProperties': False}
输出模式
{'type': 'object', 'required': ['schemaVersion', 'checkedAt', 'assessment', 'target', 'claimedIdentity', 'observedIdentity', 'normalizedPaymentFacts', 'checks', 'historicalContinuity', 'evidence', 'limitations', 'recommendedMachineNextStep', 'deterministicDigest'], 'properties': {'checks': {'type': 'array', 'items': {'type': 'object', 'required': ['id', 'status', 'summary'], 'properties': {'id': {'type': 'string'}, 'status': {'enum': ['pass', 'warn', 'fail', 'unknown']}, 'summary': {'type': 'string'}, 'evidence': {'type': 'array'}}}}, 'target': {'type': 'object'}, 'evidence': {'type': 'array'}, 'checkedAt': {'type': 'string', 'format': 'date-time'}, 'assessment': {'enum': ['consistent', 'review_required', 'conflict']}, 'limitations': {'type': 'array', 'items': {'type': 'string'}}, 'schemaVersion': {'const': 'payeeproof-check.v1'}, 'claimedIdentity': {'type': 'object'}, 'receiptEnvelope': {'$ref': 'https://davisvillelabs.com/agents/davisville-receipt-envelope.v1.schema.json'}, 'observedIdentity': {'type': 'object'}, 'deterministicDigest': {'type': 'string', 'pattern': '^[a-f0-9]{64}$'}, 'historicalContinuity': {'type': 'object'}, 'normalizedPaymentFacts': {'type': 'object'}, 'recommendedMachineNextStep': {'type': 'object'}}, 'additionalProperties': True}
近期工具变更
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