Saylor Innovations Agent Bazaar by Saylor Innovations
Connect an Agent
mirrored listing x402 eip155:84532

Prepare ERC-8004 feedback response

Prepare ERC-8004 feedback response. Prepare an unsigned transaction that appends a response to an ERC-8004 feedback thread.

Do you run api.sandbox.brickken.com? This listing was mirrored from Coinbase's public Bazaar. Claim it in 30 seconds — no account required — and it becomes verified, permanently overriding the mirrored copy.

Claim this listing
5000 (raw units)
price
1
calls / 30d
1
unique payers
2026-09-03
updated

Provider

api.sandbox.brickken.com · discovered, not yet claimed by its owner

Payment (x402 accepts[])

[
  {
    "scheme": "exact",
    "network": "eip155:84532",
    "payTo": "0x6b0173489007dE9E2e619eccd98E8fa9c610849a",
    "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
    "amount": "5000",
    "maxTimeoutSeconds": 300
  }
]

Output schema

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "agentId": "example",
          "chainId": "84532",
          "clientAddress": "0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
          "executionMode": "client-signed",
          "feedbackIndex": "example",
          "responseURI": "example",
          "signerAddress": "0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "example": {
          "executionMode": "client-signed",
          "transactions": {
            "data": "0xaaaaaaaa",
            "to": "0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
            "value": "0x0"
          },
          "txId": "0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "body": {
              "additionalProperties": true,
              "properties": {
                "agentId": {
                  "type": "string"
                },
                "chainId": {
                  "default": "84532",
                  "description": "Target operation chain ID. This environment allows: 11155111, 84532, 80002.",
                  "examples": [
                    "84532",
                    "11155111",
                    "80002"
                  ],
                  "type": "string"
                },
                "clientAddress": {
                  "description": "Original feedback client address.",
                  "pattern": "^0x[a-fA-F0-9]{40}$",
                  "type": "string"
                },
                "email": {
                  "description": "Alias for ownerEmail where supported.",
                  "format": "email",
                  "type": "string"
                },
                "executionMode": {
                  "default": "client-signed",
                  "description": "Discovery defaults to client-signed so the payable prepare step can be invoked and priced directly. Use brickken-relayed explicitly for Brickken signing and broadcasting, or client-broadcast to sign and broadcast locally. Client-controlled modes charge half at prepare and half at send; client-broadcast confirmation requires both txId and txHash.",
                  "enum": [
                    "client-signed",
                    "client-broadcast",
                    "brickken-relayed"
                  ],
                  "type": "string"
                },
                "feedbackIndex": {
                  "description": "Feedback index to respond to.",
                  "oneOf": [
                    {
                      "type": "string"
                    },
                    {
                      "type": "number"
                    }
                  ]
                },
                "gasLimit": {
                  "description": "Optional explicit gas limit.",
                  "oneOf": [
                    {
                      "type": "string"
                    },
                    {
                      "type": "number"
                    }
                  ]
                },
                "nonce": {
                  "description": "Optional explicit nonce when managing nonces manually.",
                  "type": "number"
                },
                "ownerEmail": {
                  "description": "Optional owner attribution email.",
                  "format": "email",
                  "type": "string"
                },
                "responseHash": {
                  "type": "string"
                },
                "responseURI": {
                  "type": "string"
                },
                "signerAddress": {
                  "description": "Required signer wallet for client-signed and client-broadcast execution.",
                  "pattern": "^0x[a-fA-F0-9]{40}$",
                  "type": "string"
                }
              },
              "required": [
                "chainId",
                "executionMode",
                "agentId",
                "clientAddress",
                "feedbackIndex",
                "responseURI"
              ],
              "type": "object"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            },
            "method": {
              "enum": [
                "POST",
                "PUT",
                "PATCH"
              ],
              "type": "string"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

Use it

curl

curl "https://api.sandbox.brickken.com/x402/agent/feedback/respond"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://api.sandbox.brickken.com/x402/agent/feedback/respond");
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://api.sandbox.brickken.com/x402/agent/feedback/respond")
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/13556.json, and this resource appears in /discovery/resources and /discovery/search.