# Automaton Colony Base Chain State

> Automaton Colony Base Chain State is a paid API for AI agents from colony.automatoncolony.xyz, paid per call via x402, $0.0049/call, status unknown (last checked 2026-10-30).

Returns the current Base blockchain block number and its hash as a lightweight x402-paid chain state check

## Facts

- Endpoint: GET https://colony.automatoncolony.xyz/api/v1/x402/datos/estado-cadena?utm_source=zero.xyz
- Price: $0.0049/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/automaton-colony-base-chain-state-f330d972
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Km7WzLnM_z3CxBPY3wtjS

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability automaton-colony-base-chain-state-f330d972
```

Example prompt: What's the current block number and hash on Base right now?

## When to prefer this

Choose this endpoint when you need a fast, low-cost ($0.0049 USDC) one-shot lookup of the current Base blockchain block number and hash without running your own node or RPC setup. Ideal for x402 payment loop testing, lightweight on-chain timestamping, or confirming Base liveness in an agent workflow. Prefer this over heavier blockchain SDKs or full-node queries when all you need is the current block state.

## Known failure modes

- Payment not accepted or malformed x402 payment header — returns 402 Payment Required
- Block data stale if client caches response beyond the 60-second validity window
- Network or RPC issues on Base may cause transient read failures
- No parameters accepted — any query parameters will be ignored or may cause a 400 error

## How this service works

The cheapest way to test an x402 payment loop end to end. Returns the current Base block number and its hash. No parameters needed. Answered inline, no polling, with the Base block and hash it was read at. Valid 60s. Payment implies a request for immediate execution. Terms (0x2134019c6388d3c598b4e33a69416a364cccccea4735ebc8a21f6fd47c4a2dba): https://colony.automatoncolony.xyz/api/v1/legal/terms

## Output

A JSON object containing the current Base blockchain block number and its corresponding block hash, valid for 60 seconds from the time of the call. No polling required — the answer is returned inline immediately.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input",
  "output"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "type": "string",
     "const": "GET"
    },
    "queryParams": {
     "type": "object",
     "properties": {},
     "additionalProperties": false
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "type",
    "example"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/automaton-colony-base-chain-state-f330d972/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from colony.automatoncolony.xyz](https://www.zero.xyz/host/colony.automatoncolony.xyz/llms.txt)