Server definition

Hash: sha256:b65365f5f9cf548cc99c121dc68e27d3e95de5909f1a69190da37fe3714f711c
What it is: What a remote MCP server returned when asked what it offers: 2 tools

The blob, as servednamed by its sha256

{
  "instructions": "Safe4 decides whether an AI agent's proposed payment should be allowed, by\ntesting the purchase against the task the agent was actually given.\n\nThe distinguishing case is a payment that is inside every budget, in an allowed\ncategory, and to an approved counterparty, and is still denied because it does\nnot serve the task.\n\nsafe4_price is free. safe4_authorize is settled per call in USDC over x402: call\nit without a payment to receive the price list, then again with a payment\npayload.",
  "tools": [
    {
      "description": "Decide whether a proposed agent payment should proceed.\n\nSettled per call in USDC over x402. Called without ``payment`` it\nreturns the price list rather than a decision; call it again with the\nsigned payload to receive one.\n\nThe task and the two allow-lists are the principal's constraints, not\nthe agent's: they are what the purchase is tested against, so an agent\nthat writes its own ``task`` is grading its own homework. Safe4 records\nevery field it was given in the audit entry and marks the task context\nas request-supplied, so a substituted constraint is visible afterwards.\n\nArgs:\n    task: The task the agent was given, as stated by its principal.\n    purchase: What is being bought.\n    purchase_purpose: Why this purchase serves the task.\n    amount: Decimal amount as a string, for example \"25.00\".\n    currency: Currency of the proposed payment, for example \"USDC\".\n    counterparty: Who would receive the payment.\n    service_category: Category of the thing being bought.\n    allowed_service_categories: Categories the principal permits.\n    allowed_counterparties: Optional payees the principal permits. When\n        supplied, payment to anyone else is denied.\n    task_id: Optional caller-side task identifier, echoed into the audit.\n    payment: An x402 payment payload for this call. Omit to receive the\n        price list instead of a decision.\n",
      "inputSchema": {
        "properties": {
          "allowed_counterparties": {
            "anyOf": [
              {
                "items": {
                  "type": "string"
                },
                "type": "array"
              },
              {
                "type": "null"
              }
            ],
            "default": null,
            "title": "Allowed Counterparties"
          },
          "allowed_service_categories": {
            "items": {
              "type": "string"
            },
            "title": "Allowed Service Categories",
            "type": "array"
          },
          "amount": {
            "title": "Amount",
            "type": "string"
          },
          "counterparty": {
            "title": "Counterparty",
            "type": "string"
          },
          "currency": {
            "title": "Currency",
            "type": "string"
          },
          "payment": {
            "anyOf": [
              {
                "type": "string"
              },
              {
                "type": "null"
              }
            ],
            "default": null,
            "title": "Payment"
          },
          "purchase": {
            "title": "Purchase",
            "type": "string"
          },
          "purchase_purpose": {
            "title": "Purchase Purpose",
            "type": "string"
          },
          "service_category": {
            "title": "Service Category",
            "type": "string"
          },
          "task": {
            "title": "Task",
            "type": "string"
          },
          "task_id": {
            "anyOf": [
              {
                "type": "string"
              },
              {
                "type": "null"
              }
            ],
            "default": null,
            "title": "Task Id"
          }
        },
        "required": [
          "task",
          "purchase",
          "purchase_purpose",
          "amount",
          "currency",
          "counterparty",
          "service_category",
          "allowed_service_categories"
        ],
        "title": "safe4_authorizeArguments",
        "type": "object"
      },
      "name": "safe4_authorize",
      "outputSchema": {
        "additionalProperties": true,
        "title": "safe4_authorizeDictOutput",
        "type": "object"
      }
    },
    {
      "description": "Price and accepted payment networks for one Safe4 decision.\n\nFree to call. Returns the same x402 terms the HTTP endpoint advertises,\nso an agent can see the cost before committing to a paid call.\n",
      "inputSchema": {
        "properties": {},
        "title": "safe4_priceArguments",
        "type": "object"
      },
      "name": "safe4_price",
      "outputSchema": {
        "additionalProperties": true,
        "title": "safe4_priceDictOutput",
        "type": "object"
      }
    }
  ]
}

Verify it yourself

curl -s https://api.teppi.xyz/v1/evidence/sha256:b65365f5f9cf548cc99c121dc68e27d3e95de5909f1a69190da37fe3714f711c | sha256sum