atomicfi.com
Atomic provides embedded financial connectivity products for payroll, direct-deposit switching, income and employment verification, payment switching, and subscription or bill management. Its platform connects users to payroll providers, merchants, and service providers so partner apps can retrieve data and initiate permitted account actions.
Atomic exposes documented REST APIs for UserLink and PayLink, a PCI-scoped PayLink host for Switch flows, the Transact embedded web app/SDKs for end-user flows, and SDK packages for iOS and React Native; authentication uses an Atomic API key+secret pair server-side and per-user public tokens client-side.
- Atomic UserLink REST APIdiscovered
- Atomic PayLink PCI REST APIdiscovered
- Atomic Transact web appdiscovered
Sign in to Atomic Console, then open Settings → Credentials. Create or copy your API Key and API Secret. Atomic docs say server-side API calls use these together in headers x-api-key and x-api-secret. Keep the secret off client devices and out of public code.
From your server, call Atomic's POST /access-token endpoint using your API key and secret. The response contains a publicToken, which you then pass to client-side Transact SDK initialization or use in end-user-scoped API requests as x-public-token. Docs state this token defaults to a 24 hour expiry and can be set from 30 minutes to 30 days.
conventions · 0/7 published
- integrations.json——
- llms.txt✗
/llms.txt - API catalog✗
/.well-known/api-catalog - OpenAPI document✗
/api/schema/, /openapi.json, /swagger.json, /api/openapi.json, or /v1/openapi.json - MCP server card✗
/.well-known/mcp/server-card.json - OAuth protected resource✗
/.well-known/oauth-protected-resource - Agent card✗
/.well-known/agent-card.json - Agent skills✗
/.well-known/agent-skills/index.json
Publish these signals → /publishing