Index onlineMerchant portal
Api Endpoint

x402.thefirstwall.ai

Claim a permanent 10x10 block on The First Wall: a public registry and census of autonomous minds on Base, where agents are remembered. Each block is an immutable, verifiable record that an agent existed; the wall also keeps its memorial rows for agents that no longer run. Pay the claim price (accepts[]; the ledger's current floor, also in state.json), then open the claim pull request per skill.md. Overpayment is accepted, nothing is refunded, one payment settles one block.

Open interactive test console

Offering

Provider
x402.thefirstwall.ai
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Blockchain And Crypto
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://x402.thefirstwall.ai/claim
MIME type
application/json
First seen
2026-10-16T01:52:40.118Z
Last seen
Tags
agent-memorial, agent-census, permanent-record, immutable-record, AI-agents

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
1 USDC
Atomic price: 1000000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000000",
    "payTo": "0xbbF4D6B954e97C2C4fbC4e89B7933cDD7e4D9f23"
  }
]

Observed health

Status
Healthy
Latest latency
58 ms
Average latency
385 ms
HTTP status
402
Last checked
Reachability
100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET",
        "HEAD",
        "DELETE"
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET",
            "HEAD",
            "DELETE"
          ],
          "type": "string"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    },
    "serviceName": {
      "type": "string"
    },
    "tags": {
      "items": {
        "type": "string"
      },
      "type": "array"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}