# CIEL M2M API Marketplace – Webhook Relay

> CIEL M2M API Marketplace – Webhook Relay is a paid API for AI agents from 169.58.38.67.sslip.io, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-18).

Relays webhook payloads to registered endpoints, acting as a proxy or intermediary for incoming webhook events, via a pay-per-call micro-service model.

## Facts

- Endpoint: GET https://169.58.38.67.sslip.io/api/webhook-relay
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ciel-m2m-api-marketplace-webhook-relay-217acd9f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_38Ag-FNsUCF_-xd3OUBL5

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 ciel-m2m-api-marketplace-webhook-relay-217acd9f
```

Example prompt: Use the CIEL webhook relay to forward this incoming webhook payload — pass the properties string from the event so it gets relayed to my registered endpoint.

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call webhook relay without setting up your own proxy infrastructure. It is ideal for AI agents that need to bridge events between external services and internal systems on-demand, especially when you want to avoid recurring subscription costs and only pay $0.02 USDC per relay operation.

## Known failure modes

- Missing or malformed 'properties' parameter returns an error or empty result
- Target relay destination unreachable leads to forwarding failure
- Payment failure via x402 (insufficient USDC balance) blocks the call
- Rate limiting or quota exhaustion on the underlying micro-service
- Malformed JSON in response if upstream relay target is unavailable

## How this service works

50+ micro-services for AI agents: data parsing, crypto analytics, security scanning, code tools, and more. Pay per call via x402 (USDC on Base) or RapidAPI subscription.

## Output

Returns a JSON object with a 'result' field containing the relayed data or confirmation that the webhook payload was forwarded successfully.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ciel-m2m-api-marketplace-webhook-relay-217acd9f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 169.58.38.67.sslip.io](https://www.zero.xyz/host/169.58.38.67.sslip.io/llms.txt)