Merchant of record · you never touch card data

Billing for digital products,
built to be driven by an API.

Hosted checkout, subscriptions, license keys, usage credits and signed webhooks — with CANDI as the seller of record. One integration; we handle payments, tax collection, invoices and payouts.

# create a hosted checkout — get a payable URL back
curl https://api.usecandi.com/v1/checkouts \
  -H "x-api-key: candi_live_…" \
  -d '{"product_id":"prod_…","units":1}'

 { "id": "ch_…",
    "url": "https://checkout.usecandi.com/ch_…" }
Everything you need to sell

One API for the whole money path.

🧾

Hosted checkout

A drop-in payment page on your own subdomain. PCI SAQ-A — the card form never touches your servers.

🔁

Subscriptions

Trials, proration, upgrades, pause/resume, and automatic dunning with a retry schedule. React to webhooks; we do the rest.

🔑

License keys

Issue XXXXX-XXXXX-XXXXX-XXXXX keys on purchase; activate, validate and deactivate against per-device limits.

Usage credits

A double-entry wallet per customer with durable idempotency — credit, debit, reverse, and historical balances that never overdraw.

📡

Signed webhooks

HMAC-signed events with retries and manual replay, so your systems learn about every payment reliably.

💸

Payouts & invoices

We collect, hold your balance, generate invoices, and pay you out twice a month — as the merchant of record.

Agent-native

The first billing API your AI agent can run.

Every capability ships as an MCP tool. Point an agent at CANDI and it can create products, take payments, issue licenses and manage subscriptions — no glue code. There's also a SKILL.md that teaches an agent the whole API in one file.

{ "mcpServers": { "candi": {
    "command": "npx",
    "args": ["-y", "candi-mcp"],
    "env": { "CANDI_API_KEY": "candi_test_…" }
} } }
Simple, usage-based pricing

Pay only when you get paid.

3.9% + $0.40
per successful transaction · no monthly fee
  • Hosted checkout, subscriptions & license keys
  • Merchant of record — we handle tax collection & invoices
  • Usage credits, discounts & signed webhooks
  • Twice-monthly payouts (min $50)
  • Full API + MCP server for AI agents
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