# AgisHub Guaranteed Webhook Delivery

> AgisHub Guaranteed Webhook Delivery is a paid API for AI agents from api.agishub.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Delivers a JSON payload via POST/PUT/PATCH to any public URL with guaranteed, retried delivery, returning a job_id immediately for async tracking.

## Facts

- Endpoint: POST https://api.agishub.com/paid/webhook-send
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agishub-guaranteed-webhook-delivery-94c70133
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_joXtoJqrmWxclDiYlwCln

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 agishub-guaranteed-webhook-delivery-94c70133 -d '<json body>'
```

Example prompt: Send a webhook to https://hooks.myapp.com/events with this JSON payload: {"event": "order_placed", "order_id": 12345} using POST, and make sure it keeps retrying until it gets delivered — give me the job ID so I can check on it later.

## When to prefer this

Choose this endpoint when you need guaranteed, retried delivery of a JSON webhook to an external URL and cannot afford to lose the event if the target is temporarily unavailable. Prefer it over a simple HTTP POST when reliability and retry logic matter — especially for critical events like payment confirmations, order updates, or CI/CD triggers. It returns immediately with a job_id, making it suitable for async workflows where you want to fire-and-forget but still track delivery status.

## Known failure modes

- Invalid or non-public target URL returns a validation error
- Unsupported HTTP method (only POST, PUT, PATCH allowed) returns a 400-level error
- Malformed JSON payload may be rejected at validation
- Target URL permanently unreachable eventually marks job as failed after max retries
- Missing required 'url' query parameter returns a schema validation error
- Insufficient payment (x402) causes the request to be rejected before processing

## How this service works

Deliver a webhook (POST/PUT/PATCH a JSON payload to a URL) with guaranteed, retried delivery. Returns immediately with a job_id; AgisHub keeps retrying in the background until it succeeds.

## Output

Returns immediately with a job_id (string) that can be used to poll delivery status via a companion endpoint. In the background, AgisHub retries the webhook POST/PUT/PATCH until the target URL responds with a success status, ensuring guaranteed delivery.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [
      "url"
     ],
     "properties": {
      "url": {
       "type": "string",
       "format": "uri",
       "description": "Public http/https URL to deliver the webhook to."
      },
      "method": {
       "enum": [
        "POST",
        "PUT",
        "PATCH"
       ],
       "type": "string",
       "description": "HTTP method (default POST)."
      },
      "headers": {
       "type": "object",
       "description": "Optional extra request headers, e.g. an auth token.",
       "additionalProperties": {
        "type": "string"
       }
      },
      "payload": {
       "description": "JSON body to POST to the target (object, array, string or number)."
      }
     },
     "additionalProperties": false
    },
    "type": {
     "enum": [
      "http"
     ],
     "type": "string"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type",
    "example"
   ],
   "properties": {
    "type": {
     "enum": [
      "json"
     ],
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agishub-guaranteed-webhook-delivery-94c70133/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.agishub.com](https://www.zero.xyz/host/api.agishub.com/llms.txt)