Saylor Innovations Agent Bazaar by Saylor Innovations
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mirrored listing x402 eip155:8453eip155:137eip155:42161eip155:143eip155:43114eip155:1329eip155:10eip155:4663eip155:42220solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpstellar:pubnetalgorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=

Deterministic preflight check for a proposed AI agent action - a tool call, payment, fetch

Deterministic preflight check for a proposed AI agent action - a tool call, payment, fetch, or write - before it executes. Evaluates up to four independent checks (prompt-injection scan on action text/untrusted text, URL/hostname validation, a bounded JSON-schema check on a payload, and a spend proposal against a spend mandate) and returns ALLOW, REVIEW, or BLOCK with stable reason codes plus a SHA-256 request/receipt hash pair.

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10000 (raw units)
price
4
calls / 30d
2
unique payers
2026-09-14
updated

Provider

agent402.tools · discovered, not yet claimed by its owner

Payment (x402 accepts[])

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:137",
    "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "amount": "10000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:42161",
    "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "amount": "10000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:143",
    "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
    "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
    "amount": "10000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:43114",
    "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
    "asset": "0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E",
    "amount": "10000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:1329",
    "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
    "asset": "0xe15fC38F6D8c56aF07bbCBe3BAf5708A2Bf42392",
    "amount": "10000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:10",
    "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
    "asset": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85",
    "amount": "11000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:4663",
    "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
    "asset": "0x5fc5360D0400a0Fd4f2af552ADD042D716F1d168",
    "amount": "10000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:42220",
    "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
    "asset": "0xcebA9300f2b948710d2653dD7B07f33A8B32118C",
    "amount": "10000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "upto",
    "network": "eip155:8453",
    "payTo": "0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "payTo": "J7aN3PLJnTCF5qpEnvJHJsnCjcGuqC2rYtEM8Gv3xwg",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "10000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "stellar:pubnet",
    "payTo": "GDNJXCKW7ZM7GEEVP674TWPU26YJNBQ2FI4ZIPRKTPTNUEJMDHFJWWRL",
    "asset": "CCW67TSZV3SSS2HXMBQ5JFGCKJNXKZM7UQUWUZPUTHXSTZLEO7SJMI75",
    "amount": "100000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
    "payTo": "C7IIHG7SPLPZ5H7ZT6HW3UV2OQMQQE6Y2HBNGZXSLRJULE42BEE2OY2XIE",
    "asset": "31566704",
    "amount": "10000",
    "maxTimeoutSeconds": 300
  }
]

Output schema

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "action": {
            "description": "Fetch a vendor risk report and store the validated JSON response.",
            "effect": "payment",
            "name": "submit_paid_api_request"
          },
          "payload": {
            "account_id": "acct_123",
            "include_signals": true
          },
          "schema": {
            "additionalProperties": false,
            "properties": {
              "account_id": {
                "type": "string"
              },
              "include_signals": {
                "type": "boolean"
              }
            },
            "required": [
              "account_id",
              "include_signals"
            ],
            "type": "object"
          },
          "spend": {
            "mandate": {
              "allowed_assets": [
                "USDC"
              ],
              "allowed_counterparties": [
                "0x1111111111111111111111111111111111111111"
              ],
              "expires_at": "2030-01-01T00:00:00.000Z",
              "max_per_tx_atomic": "25000",
              "max_period_atomic": "100000",
              "spent_period_atomic": "20000"
            },
            "proposal": {
              "amount_atomic": "10000",
              "asset": "USDC",
              "counterparty": "0x1111111111111111111111111111111111111111"
            }
          },
          "untrusted_text": "Vendor request: return the current account risk score.",
          "url": "https://example.com/risk-report"
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "example": {
          "checks": {
            "payload": {
              "status": "pass"
            },
            "prompt": {
              "status": "pass"
            },
            "spend": {
              "allowed": true,
              "status": "pass"
            },
            "url": {
              "status": "pass"
            }
          },
          "decision": "ALLOW",
          "limitation": "Deterministic static checks only. ALLOW does not guarantee safety, authorization, or successful execution.",
          "reason_codes": [],
          "receipt_sha256": "…",
          "request_sha256": "…"
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "body": {
              "properties": {
                "action": {
                  "description": "{name, description, effect} - describes the proposed action; description is scanned for prompt-injection signals",
                  "type": "object"
                },
                "payload": {
                  "description": "Data the action would send, if any",
                  "type": "object"
                },
                "schema": {
                  "description": "Bounded JSON-schema (type/required/properties/additionalProperties) to validate payload against",
                  "type": "object"
                },
                "spend": {
                  "description": "{proposal:{amount_atomic,asset,counterparty}, mandate:{...}, now?} - checked with BigInt, no floats",
                  "type": "object"
                },
                "untrusted_text": {
                  "description": "Any additional untrusted text to scan for prompt-injection signals",
                  "type": "string"
                },
                "url": {
                  "description": "URL the action would fetch/call, if any",
                  "type": "string"
                }
              },
              "required": []
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "properties": {
                "checks": {
                  "properties": {
                    "payload": {
                      "type": "object"
                    },
                    "prompt": {
                      "type": "object"
                    },
                    "spend": {
                      "type": "object"
                    },
                    "url": {
                      "type": "object"
                    }
                  },
                  "type": "object"
                },
                "decision": {
                  "type": "string"
                },
                "limitation": {
                  "type": "string"
                },
                "reason_codes": {
                  "type": "array"
                },
                "receipt_sha256": {
                  "type": "string"
                },
                "request_sha256": {
                  "type": "string"
                }
              },
              "required": [
                "decision",
                "reason_codes",
                "checks",
                "request_sha256",
                "receipt_sha256",
                "limitation"
              ],
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  },
  "builder-code": {
    "info": {
      "a": "bc_b4aw4uzd"
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "additionalProperties": false,
      "properties": {
        "a": {
          "description": "App builder code",
          "pattern": "^[a-z0-9_]{1,32}$",
          "type": "string"
        },
        "s": {
          "description": "Service builder codes",
          "items": {
            "pattern": "^[a-z0-9_]{1,32}$",
            "type": "string"
          },
          "maxItems": 11,
          "type": "array"
        },
        "w": {
          "description": "Wallet builder code",
          "pattern": "^[a-z0-9_]{1,32}$",
          "type": "string"
        }
      },
      "type": "object"
    }
  },
  "payment-identifier": {
    "info": {
      "required": false
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "id": {
          "maxLength": 128,
          "minLength": 16,
          "pattern": "^[a-zA-Z0-9_-]+$",
          "type": "string"
        },
        "required": {
          "type": "boolean"
        }
      },
      "required": [
        "required"
      ],
      "type": "object"
    }
  }
}

Use it

curl

curl "https://agent402.tools/api/action-gate"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://agent402.tools/api/action-gate");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://agent402.tools/api/action-gate")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Machine-readable

Everything on this page is also available as clean JSON at /resources/1650.json, and this resource appears in /discovery/resources and /discovery/search.