How it works
1Mint a prepaid key (or paste one you already have).
2Initialize Paystack top-up for ≥ $10 → 1000 credits.
3Pay on Paystack. Credits apply when the webhook confirms — not before.
4Run parse.receipt / demo receipt ($0.10) or any skill via MCP / HTTP.
After you pay
Check balance, then try the receipt demo:
curl -sS https://api.callmeter.dev/v1/credits/balance \
-H "X-Api-Key: $CALLMETER_API_KEY"
# then: https://api.callmeter.dev/demo/receipt-to-json
# POST https://api.callmeter.dev/v1/docintel/extract/receipt