# Alpha Signal API — Listing RapidAPI

## Titre marketplace

**Alpha Signal API — MEXC Listings, Whale Moves & Cross-CEX News**

## Tagline (160 chars)

Normalized crypto signals for bots: MEXC new listings, smart-money whale alerts, major CEX news. REST JSON, Bearer auth, EU billing.

## Description longue

Alpha Signal API expose les signaux normalisés de la stack Constellation Crypto (production Tokyo) :

- **Listings MEXC** : détection firstOpenTime, symbole, résumé
- **Whale moves** : Nansen + Arkham, notional USD, entité
- **News cross-CEX** : Binance, Bybit, OKX, KuCoin, etc.

Différenciateurs vs concurrence :
- Lag tenant configurable (Pro vs Business)
- HMAC webhooks inbound
- Même pipe que bot listing prod (Formule1Bot)

## Pricing tiers RapidAPI

| Plan | Prix/mois | Req/mois | Lag | Support |
|------|-----------|----------|-----|---------|
| Basic (Free) | 0 $ | 100 | 300s | Community |
| Pro | 99 $ | 50 000 | 5s | Email 48h |
| Ultra | 499 $ | 500 000 | 0s* | Slack 4h |

*Business plan : lag 0 sur signaux non-M1A raw ; policy tenant documentée.

## Endpoints exposés

```
GET  /health
GET  /v1/signals?limit=50     Authorization: Bearer <key>
POST /v1/checkout             { "email", "plan": "pro" }
POST /v1/hook/{provider}      HMAC signature
```

OpenAPI : `/docs/openapi.json`

## Checklist screenshots marketplace

- [ ] Dashboard RapidAPI — test endpoint /v1/signals
- [ ] Réponse JSON listing sample (symbol, ts_ms, type)
- [ ] Page pricing 3 tiers
- [ ] Landing `/` avec comparatif API vs Bot
- [ ] Logo 512x512 PNG
- [ ] Terms : no financial advice, crypto risk

## Copy catégories

- **Category** : Finance → Cryptocurrency
- **Keywords** : mexc, listing, whale alert, crypto api, trading signals

## Cross-sell footer

- Compare CEX (free spreads)
- Whale Pulse Telegram 19€
- Formule1Bot waitlist

## UTM RapidAPI

`utm_source=rapidapi&utm_medium=marketplace&utm_campaign=p-signal`

## Onboarding dev (post-subscribe)

1. POST `/v1/checkout` → Stripe
2. GET `/v1/checkout/success` → api_key (shown once)
3. GET `/v1/signals` with `Authorization: Bearer <key>`

## SLA cible

- Uptime 99.5 %
- p95 latency < 200 ms (rise-l Tokyo relay)