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Developer API

Build with the payments API

A payment orchestration platform. Connect once and route card and alternative payments across acquirers, networks, and APMs through a single API.

QuickstartAPI reference

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Pick your path

Quickstart

Go from credentials to a successful test transaction in about five minutes.

Choose your integration

Compare Checkout, S2S APM, S2S CARD, and HPF on PCI scope, effort, and use case.

Authentication and credentials

How merchant_key, password, and hashing fit together. All in one place.

Integrations

Ready to ship?

Checkout

Hosted payment page. We render the form; you redirect.

S2S APM

Server-to-server for alternative payment methods, wallets, and crypto.

S2S CARD

Server-to-server for cards. Maximum control for PCI-compliant merchants.

Hosted payment fields

Your form, our PCI-scoped inputs. Custom UI without holding card data.

Capabilities

What the platform supports

  • Accept card payments: Visa, Mastercard, Amex, and regional schemes
  • Accept alternative payments: APMs, wallets, bank transfers, crypto on/off-ramps
  • Two-step auth + capture: DMS mode for deferred and partial captures
  • Recurring: saved-token charges and merchant-scheduled subscriptions
  • Tokenize once, reuse: store a card token and charge later
  • Refund, void, and credit: full or partial, server-to-server
  • Multi-acquirer routing: cascade across providers, set pre-routing rules

Before you start

You'll need three things

Sandbox URLProvided by your account manager.
merchant_keyAdmin panel → Merchants → your merchant → Test key.
passwordAdmin panel → Merchants → your merchant → Password. Used only for hashing. Never sent in a request body.

Full setup in Authentication and credentials. Test cards and sample data in Testing and sandbox.

Resources

Go deeper

Concepts and glossary

Definitions for MID, DMS-mode, cascading, pre-routing, and every other term the docs use.

Testing and sandbox

Sandbox URLs, test cards by scheme and outcome, APM test credentials.

API reference

Every endpoint: parameters, examples, responses.

Docs over MCP

Connect these docs to Claude Code, Cursor, VS Code, or Codex and let your assistant read them directly.

Need help?

  • AI Help. The floating button in the corner of every page; ask in natural language.
  • Status / Support. Your account manager can help with service status checks and ticket creation.
  • Account manager. Your primary contact for credentials, pricing, and acquirer setup.