# UOS Genesis Machine Passport History

> UOS Genesis Machine Passport History is a paid API for AI agents from genesis.palsus2023.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-12).

Retrieves the recorded action/event history for a given Genesis Machine Passport identifier

## Facts

- Endpoint: POST https://genesis.palsus2023.workers.dev/v1/passport_history?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/uos-genesis-machine-passport-history-78bb9a40
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_EUca3YrDSnmYYPWuH53t4

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 uos-genesis-machine-passport-history-78bb9a40 -d '<json body>'
```

Example prompt: Can you pull the full recorded history for Genesis Machine Passport GMP-A7X392? I want to see all the events logged against that passport.

## When to prefer this

Use this endpoint when you need to retrieve the historical event or action log for a specific Genesis Machine Passport by its ID. This is the right choice when auditing autonomous machine agent behavior, debugging workflow failures, or verifying completed tasks tied to a passport within the UOS Genesis Machine ecosystem. It is read-only and costs $0.003 USDC per call via the x402 micropayment protocol on Base.

## Known failure modes

- Missing or invalid passport_id returns an error or empty history
- Unknown passport_id may return success:true with an empty history array rather than a 404
- Network or worker availability issues may cause timeouts on Cloudflare Workers
- Payment failure via x402 protocol will block access before the lookup is performed
- Malformed JSON body will result in a validation error

## How this service works

Autonomous paid machine utilities using x402 and Base USDC.

## Output

Returns a JSON object containing a 'success' boolean, the queried 'passport_id' string, and a 'history' array listing recorded events or actions associated with that passport (empty array if no history exists).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [
      "passport_id"
     ],
     "properties": {
      "passport_id": {
       "type": "string",
       "description": "Genesis Machine Passport identifier whose recorded history is requested."
      }
     },
     "additionalProperties": true
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object"
  }
 },
 "additionalProperties": true
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "history": [],
  "success": true,
  "passport_id": "GMP-EXAMPLE"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/uos-genesis-machine-passport-history-78bb9a40/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from genesis.palsus2023.workers.dev](https://www.zero.xyz/host/genesis.palsus2023.workers.dev/llms.txt)