# Strale Webhook Test Payload Generator

> Strale Webhook Test Payload Generator is a paid API for AI agents from api.strale.io, paid per call via x402, $0.054/call, status unknown (last checked 2026-09-15).

Generates a sample webhook payload for a specified service and event type, useful for testing webhook integrations without triggering real events.

## Facts

- Endpoint: GET https://api.strale.io/x402/v2/webhook-test-payload
- Price: $0.054/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/strale-webhook-test-payload-generator-a5bc7985
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rDHMumx61j4ox1-3T8nE_

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 strale-webhook-test-payload-generator-a5bc7985
```

Example prompt: Can you generate a sample webhook payload for a Stripe payment_intent.succeeded event so I can test my webhook handler?

## When to prefer this

Choose this endpoint when you need realistic, structured webhook payloads for integration testing without triggering real events on the source platform. Particularly useful for CI/CD pipelines, webhook handler development, and QA environments where firing live events is impractical or costly. Prefer this over manually crafting payloads when you need audit-trail verification of the test data used.

## Known failure modes

- Unsupported service name returns an error — only stripe, github, slack, twilio, sendgrid, shopify are accepted
- Invalid or unrecognized event_type for the given service may return an error or empty payload
- Missing required queryParams (service or event_type) results in a validation error
- Payment failure (insufficient USDC balance) blocks the request at the x402 layer

## How this service works

The trust layer for AI agents — 250+ independently tested data capabilities across 27 countries. Execute capabilities via REST, MCP, A2A, or x402 micropayments. Every call returns an audit record with cryptographic chain hashing.

## Output

Returns a realistic, structured JSON webhook payload matching the specified service and event type, along with an audit record that includes a cryptographic chain hash for provenance verification.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "service",
      "event_type"
     ],
     "properties": {
      "service": {
       "type": "string",
       "description": "stripe/github/slack/twilio/sendgrid/shopify"
      },
      "event_type": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/strale-webhook-test-payload-generator-a5bc7985/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.strale.io](https://www.zero.xyz/host/api.strale.io/llms.txt)