# The Stall — Action Receipt Generator

> The Stall — Action Receipt Generator is a paid API for AI agents from the-stall.intuitek.ai, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Creates a cryptographically-anchored receipt for an action taken by an agent or actor, recording what was done, by whom, to what, and optionally a hash of the work product.

## Facts

- Endpoint: GET https://the-stall.intuitek.ai/cap/action-receipt
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/the-stall-action-receipt-generator-f56ef6f1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WwVJ6lQXY9fI6XstH9U5B

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 the-stall-action-receipt-generator-f56ef6f1
```

Example prompt: Log a receipt showing that agent wallet 0xABC123 sent a quote to client Acme Corp — the action is 'sent_quote', the subject is 'acme-rfp-2024', and here's the SHA-256 hash of the quote document: e3b0c44298fc1c149afb.

## When to prefer this

Use this endpoint when an AI agent needs to create a lightweight, pay-per-use, account-free attestation or audit log entry for an action it just performed — especially in multi-agent pipelines where provenance and accountability matter. Prefer this over traditional logging APIs when you want no account setup, USDC micropayment billing, and a neutral third-party receipt anchored by The Stall's infrastructure.

## Known failure modes

- Missing required 'action' query param returns a 400 error
- Missing required 'actor' query param returns a 400 error
- result_hash not in valid SHA-256 format may be rejected or stored as-is
- meta field exceeding 500 characters may be truncated or rejected
- Payment failure (insufficient USDC or wrong network) returns 402 before the endpoint is reached

## How this service works

Domain-agnostic x402 capability chassis by IntuiTek¹. 300 AI-callable data services — pay USDC on Base mainnet. No accounts or API keys required.

## Output

A structured action receipt confirming the logged event, including the actor identifier, action label, optional subject, optional SHA-256 result hash, optional meta context, and a server-side timestamp anchoring the record.

## 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"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "action",
      "actor"
     ],
     "properties": {
      "meta": {
       "type": "string",
       "description": "freeform context, max 500 chars (optional)"
      },
      "actor": {
       "type": "string",
       "description": "who/what did it — agent id, wallet, or name"
      },
      "action": {
       "type": "string",
       "description": "what was done, e.g. 'sent_quote', 'published_listing', 'completed_job'"
      },
      "subject": {
       "type": "string",
       "description": "what it was done to/for (optional)"
      },
      "result_hash": {
       "type": "string",
       "description": "sha256 of the work product, if any (optional)"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/the-stall-action-receipt-generator-f56ef6f1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from the-stall.intuitek.ai](https://www.zero.xyz/host/the-stall.intuitek.ai/llms.txt)