Prepare ERC-8004 agent registration
Prepare ERC-8004 agent registration. Prepare an unsigned ERC-8004 agent registration transaction.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
1281 msmedian answer time
$0.005listed price per call
$0.005price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://api.sandbox.brickken.com/x402/agent/register
| Category | Code and developer |
|---|---|
| Provider host | api.sandbox.brickken.com |
| Networks | eip155:84532 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.005 | 1281 ms |
Example input (from the provider)
{
"body": {
"chainId": "84532",
"description": "example",
"executionMode": "client-signed",
"image": "https://example.com",
"name": "example",
"services": [
{
"endpoint": "https://example.com",
"name": "example"
}
],
"signerAddress": "0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": true,
"properties": {
"active": {
"type": "boolean"
},
"agentType": {
"type": "string"
},
"aiModelName": {
"type": "string"
},
"aiModelProvider": {
"type": "string"
},
"chainId": {
"default": "84532",
"description": "Target operation chain ID. This environment allows: 11155111, 84532, 80002.",
"examples": [
"84532",
"11155111",
"80002"
],
"type": "string"
},
"description": {
"type": "string"
},
"documentation": {
"format": "uri",
"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"
},
"gasLimit": {
"description": "Optional explicit gas limit.",
"oneOf": [
{
"type": "string"
},
{
"type": "number"
}
]
},
"image": {
"format": "uri",
"type": "string"
},
"license": {
"type": "string"
},
"metadata": {
"additionalProperties": true,
"type": "object"
},
"name": {
"type": "string"
},
"nonce": {
"description": "Optional explicit nonce when managing nonces manually.",
"type": "number"
},
"ownerEmail": {
"description": "Optional owner attribution email.",
"format": "email",
"type": "string"
},
"registrations": {
"items": {
"additionalProperties": true,
"type": "object"
},
"type": "array"
},
"services": {
"items": {
"additionalProperties": true,
"properties": {
"endpoint": {
"format": "uri",
"type": "string"
},
"name": {
"type": "string"
},
"version": {
"type": "string"
}
},
"required": [
"name",
"endpoint"
],
"type": "object"
},
"type": "array"
},
"signerAddress": {
"description": "Required signer wallet for client-signed and client-broadcast execution.",
"pattern": "^0x[a-fA-F0-9]{40}$",
"type": "string"
},
"sourceCode": {
"format": "uri",
"type": "string"
},
"supportedTrust": {
"items": {
"type": "string"
},
"type": "array"
},
"tags": {
"items": {
"type": "string"
},
"type": "array"
},
"version": {
"type": "string"
},
"x402Support": {
"type": "boolean"
}
},
"required": [
"chainId",
"executionMode",
"name",
"description",
"image",
"services"
],
"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"
}