GryllexGryllex
Developers

API-FIRST INFRASTRUCTURE
Build on Gryllex

JWT REST for MoMo buy/sell, vault balances, and rates. Inbound settlement events land on Gryllex — not on a webhook you configure yet.

Core endpoints

GET/crypto/rates

Yellow Card fiat↔crypto rates (XAF)

POST/crypto/buy

Buy USDT/BTC/ETH with Cameroon MoMo

POST/crypto/sell

Sell crypto to MoMo cash-out

GET/crypto/portfolio

Yellow Card vault + XAF balances

POST/yellowcard/webhooks/callback

Inbound Yellow Card settlement events

curl -X POST "https://api.gryllex.com/api/v1/crypto/buy" \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"fiatAmount":5000,"asset":"USDT","network":"MTN","msisdn":"670000000"}'

Session JWT

Authenticate as a user and pass Authorization: Bearer on each request. User-issued API keys are not available yet.

Inbound webhooks

Yellow Card and S3P send settlement events to Gryllex. Outbound webhooks to your app are not live.

Swagger docs

Explore the live REST surface — rates, buy, sell, portfolio, payments. No JS/Python SDK yet.

Open Swagger →