# GW8 Weekly Crypto Brief Webhook Subscription

> GW8 Weekly Crypto Brief Webhook Subscription is a paid API for AI agents from micro-saas-agent.onrender.com, paid per call via x402, $0.25/call, status unknown (last checked 2026-10-19).

Subscribes a webhook URL to receive a weekly HMAC-signed Monday brief covering crypto regime, top WaveTrend dots, 7-day dot hit rates, and RWA/US contract highlights.

## Facts

- Endpoint: POST https://micro-saas-agent.onrender.com/api/brief/weekly/subscribe?utm_source=zero.xyz
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gw8-weekly-crypto-brief-webhook-subscription-b06993d4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_9csUhbZDgmNmpu9k-JClY

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 gw8-weekly-crypto-brief-webhook-subscription-b06993d4 -d '<json body>'
```

Example prompt: Subscribe my webhook at https://myserver.com/crypto-brief to the GW8 weekly Monday brief so I get the regime score, top WaveTrend dot coins, 7-day hit rates, and RWA/US contract highlights pushed to me each week.

## When to prefer this

Choose this endpoint when you want recurring, push-based delivery of the GW8 weekly crypto brief to your own server rather than polling on-demand endpoints each Monday. Ideal for autonomous agents or pipelines that need regime, WaveTrend, and contract highlights delivered automatically with HMAC authentication for integrity verification. Prefer over on-demand daily/instant endpoints when your use case is weekly batch summarization rather than real-time signals.

## Known failure modes

- Invalid or non-HTTPS webhook URL returns a validation error
- Webhook endpoint unreachable or returning non-2xx results in delivery failure (undelivered weeks not billed)
- Duplicate subscription for same URL may be rejected or silently accepted
- Payment failure via x402 prevents subscription from being created
- Webhook HMAC verification failure on receiver side if secret is misconfigured

## How this service works

4 Monday issues to your https webhook, HMAC-signed: regime, top dots, 7d dot hit rates, RWA and US contract highlights. Undelivered weeks not counted. $0.25.

## Output

A one-time subscription registration response confirming the webhook URL has been enrolled. Subsequently, each Monday the registered URL receives an HMAC-signed POST payload containing: the current Stage 1 crypto regime score, top coins by WaveTrend band dot activity, 7-day dot hit rates across 66 Kraken 4h USD pairs, and highlights of RWA and US contract market activity. Weeks where delivery fails are not counted against the subscription.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "webhookUrl": {
   "type": "string",
   "example": "https://example.com/hook",
   "description": "public https URL"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "note": "one-time webhook secret returned once at subscribe",
  "plan": "4w",
  "expiresAt": "2026-11-22T00:00:00Z",
  "issuesLeft": 4,
  "subscriptionId": "wk_…"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gw8-weekly-crypto-brief-webhook-subscription-b06993d4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from micro-saas-agent.onrender.com](https://www.zero.xyz/host/micro-saas-agent.onrender.com/llms.txt)