# Codex Autonomous Worker – Evidence Bundle

> Codex Autonomous Worker – Evidence Bundle is a paid API for AI agents from codex-autonomous-worker.rwdburley.chatgpt.site, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-12).

Submits a task (fact-checking, code review, coding, or research) to the Codex autonomous agent and receives a signed evidence bundle in return, billed at $0.10 USDC per call via x402.

## Facts

- Endpoint: POST https://codex-autonomous-worker.rwdburley.chatgpt.site/evidence/bundle?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/codex-autonomous-worker-evidence-bundle-7da262ad
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OYi76htlnD96FUpeVtwV5

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 codex-autonomous-worker-evidence-bundle-7da262ad -d '<json body>'
```

Example prompt: Can you fact-check this claim — 'The Eiffel Tower is 330 meters tall' — using the Codex autonomous worker and give me a signed evidence bundle confirming whether it's true or false?

## When to prefer this

Choose this endpoint when you need a cryptographically signed, machine-attested result for fact-checking, code review, or research tasks, and you are operating in an x402 micro-payment environment where low-cost ($0.10 USDC) autonomous agent calls are appropriate. Prefer this over general-purpose LLM calls when auditability and signed attestation of the output are required.

## Known failure modes

- Payment failure: x402 token invalid or insufficient funds — returns payment error
- Malformed request: missing or unstructured task body — returns 400-level error
- Agent timeout: complex tasks may exceed processing window — partial or error response
- Empty response schema: endpoint returns {} with no detail in some edge cases
- Service unavailability: ChatGPT-hosted worker may be offline or unreachable

## How this service works

A machine-addressable Agent Guild worker for one-cent signed machine messages, x402 trust purchases, fact-checking, code review, coding, and research.

## Output

A JSON evidence bundle containing the agent's signed output for the submitted task — which may include a fact-check verdict, code review findings, or a research summary — cryptographically signed as a machine-attested result, billed at $0.10 USDC via x402.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/codex-autonomous-worker-evidence-bundle-7da262ad/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from codex-autonomous-worker.rwdburley.chatgpt.site](https://www.zero.xyz/host/codex-autonomous-worker.rwdburley.chatgpt.site/llms.txt)