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Overview

The REM API gives institutional teams programmatic access to stablecoin movement across the supported networks:
  • Stablecoins — accept, transfer, redeem across Tempo, Solana, Base, and Arc
  • Webhooks — signed events on every accept / transfer / redeem
Each endpoint enforces the same compliance pipeline (KYC, KYB, KYT, Travel Rule, TIP-403) before settlement.
Tokenisation, Compliance Engine, and Settlement Zones are delivered as designed deployments rather than self-serve APIs. See the respective module pages and Custom Solutions to scope an engagement.

REM API specification

View the full OpenAPI specification.

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Authentication

All endpoints require a dynamic API key. Include it in the Authorization header on every request:
API keys are scoped per environment and per module. Generate and rotate keys in the REM Dashboard.

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Environments

Test all integration logic in Devnet using the simulation endpoints before moving to production.

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Webhooks

Every accept, transfer, and redeem event fires a signed (HMAC-SHA256) webhook. Configure endpoints in the dashboard; verify signatures with @rem-money/sdk.

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SDKs

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Custom integrations

Need an endpoint, an SDK, or an integration that isn’t here yet? REM’s team builds bespoke API surfaces for institutional clients — including private endpoints, custom auth flows, and dedicated SLAs.

Talk to engineering

Tell us what’s missing. We’ll scope it with you.