Atomic website screenshot

Atomic

Atomic is the connected-banking infrastructure for income, payroll, and merchant data. Their user-permissioned APIs let banks, lenders, fintechs, and HR platforms link consumers to thousands of payroll providers, gig platforms, employers, and merchants — and then read or update that data in real time. Core use cases include direct-deposit switching, paycheck-linked income and employment verification, tax-document retrieval, and card-on-file / subscription management. Integration is done through the Transact SDK (web, iOS, Android, React Native, Flutter, Capacitor) plus a REST API at api.atomicfi.com that manages access tokens, tasks, companies, deposit accounts, and webhooks. Atomic is headquartered in Salt Lake City, Utah.

Atomic publishes 7 APIs on the APIs.io network. Tagged areas include Income, Payroll, Direct Deposit, Employment Verification, and Open Banking.

Atomic’s developer surface includes documentation, API reference, developer portal, signup flow, YouTube channel, support, engineering blog, and 8 more developer resources.

28.8/100 thin ▲ 5.6 Agent 31/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
7 APIs 11 Features 6 Use Cases
IncomePayrollDirect DepositEmployment VerificationOpen BankingFinancialSubscriptionsBill Pay

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 28.8/100 · thin
Contract Quality 10.8 / 25
Developer Ergonomics 9.6 / 20
Commercial Clarity 2.6 / 20
Operational Transparency 1.7 / 13
Governance 0.0 / 12
Discoverability 6.5 / 10
Agent readiness — 31/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 6 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/atomic-financial: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 7

Individual APIs this provider publishes, each with its own machine-readable definition.

Atomic Deposit API

Deposit (formerly Direct Deposit Switching) lets users redirect all or part of their paycheck to a new account. Atomic connects to thousands of payroll providers and employers, ...

Atomic Verify API

Verify provides instant income and employment verification by connecting to the consumer's payroll provider or employer. Lenders, landlords, and fintechs use it to retrieve veri...

Atomic PayLink API

PayLink lets consumers update their card-on-file across merchants and subscription services. It is also the foundation for subscription discovery, bill management, and Atomic's ...

Atomic Tax API

Tax retrieves W-2s, 1099s, and other tax documents directly from the user's payroll provider, and unlocks tax-refund use cases such as early-deposit and refund-advance products ...

Atomic Authentication API

Atomic's authentication layer powers user-permissioned access to third-party payroll, employer, and merchant systems. Three flavors are supported - StandardAuth (credential / 2F...

Atomic Webhooks API

Atomic delivers task, company, and continuous-access events to your endpoint using the CloudEvents binary content mode. Events include task-status-updated, task-workflow-finishe...

Atomic Transact SDK

The Transact SDK is the user-facing client that drives every Atomic flow — authentication, account selection, consent, and task execution. It ships as an embeddable web componen...

Scroll for all 7

GraphQL 1

GraphQL schemas published by this provider.

Atomic Financial GraphQL

Conceptual GraphQL schema for Atomic Financial's payroll connectivity, direct deposit switching, income and employment verification, tax document retrieval, and merchant card-on...

GRAPHQL

Features 11

Notable capabilities this provider offers.

Deposit (Direct Deposit Switching)

Reroute all or part of a user's paycheck to a new account at thousands of payroll providers, with total, fixed-amount, or percentage allocations.

Verify (Income & Employment)

Instant payroll-sourced income and employment verification for lenders, landlords, and fintechs.

PayLink

User-permissioned card-on-file updating across merchants and subscription services.

Manage

AI-assisted subscription and recurring-bill management with pause / cancel / reactivate.

Switch

Bulk payment-method updates and card switching across merchants.

Tax

W-2 and 1099 document retrieval direct from payroll providers; powers refund-advance products.

Authentication suite

StandardAuth (credential / 2FA), TrueAuth (deviceless, fully automated), and CoAuth (assisted) auth modes.

Transact SDK

Embeddable web component plus native libraries for iOS, Android, React Native, Flutter, and Capacitor.

Continuous Access

Long-lived linked-account connections that emit webhooks when payroll, deposit accounts, statements, timesheets, or taxes change.

CloudEvents webhooks

Task, company, and data-sync events delivered using CloudEvents binary content mode.

Console

Web dashboard for API keys, webhook endpoints, secrets, and task monitoring.

Scroll for all 11

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Atomic Financial Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Use Cases 6

What developers build with this provider.

Primacy / Direct-Deposit Capture

Banks and credit unions use Deposit to move new account holders' paychecks into their institution.

Lending Income & Employment Verification

Lenders verify applicant pay and employer identity instantly during underwriting.

Tax-Refund Advance

Issuers retrieve W-2 / 1099 data to power early-refund and refund-advance products.

Subscription Discovery & Management

Issuers, neobanks, and PFM apps surface and manage recurring subscriptions and bills.

Card-on-File Switching

Issuers move card-on-file across merchants when a customer gets a new card.

Gig / 1099 Income Streams

Lenders and PFM apps pull gig-platform pay history for underwriting and budgeting.

Integrations 7

Pre-built integrations with other platforms and tools.

Mastercard

Strategic partnership for card-switching and subscription management at scale.

Experian

Identity and credit-bureau ecosystem integration.

MX

Open-banking and data-aggregation partnership.

Jack Henry

Core-banking distribution to community banks and credit unions.

Galileo

Card-issuing platform integration.

MoneyLion

Consumer-finance platform integration.

Frost Bank

Direct-deposit-switching customer.

Scroll for all 7

Solutions 4

Packaged solutions this provider offers.

Banks & Credit Unions

Win primacy through direct-deposit capture, retain through subscription management, and advance through tax refunds.

Lenders

Underwrite with payroll-sourced income, employment, and tax data.

HR & Earned-Wage-Access

Connect to payroll for employment status, pay history, and timesheet data.

Fintech & Neobank

Subscription discovery, bill optimization, and direct-deposit setup as embedded features.

Resources

Get Started 4

Portal, sign-up, and the first successful call

Documentation 2

Reference material describing how the API behaves

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Build 1

SDKs, sample code, and the tooling you integrate with

Access & Security 2

Authentication, authorization, and security posture

Learn 1

Tutorials, courses, talks, and written guidance

Operate 1

Status, limits, changes, and where to get help

Company 3

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: atomic-financial
name: Atomic
url: https://raw.githubusercontent.com/api-evangelist/atomic-financial/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://atomic.financial/wp-content/uploads/2023/02/atomic-logo.svg
description: Atomic is the connected-banking infrastructure for income, payroll, and merchant data. Their user-permissioned
  APIs let banks, lenders, fintechs, and HR platforms link consumers to thousands of payroll providers, gig platforms, employers,
  and merchants — and then read or update that data in real time. Core use cases include direct-deposit switching, paycheck-linked
  income and employment verification, tax-document retrieval, and card-on-file / subscription management. Integration is done
  through the Transact SDK (web, iOS, Android, React Native, Flutter, Capacitor) plus a REST API at api.atomicfi.com that
  manages access tokens, tasks, companies, deposit accounts, and webhooks. Atomic is headquartered in Salt Lake City, Utah.
created: '2026-05-25'
modified: '2026-05-25'
specificationVersion: '0.18'
position: Consuming
access: 3rd-Party
tags:
- Income
- Payroll
- Direct Deposit
- Employment Verification
- Open Banking
- Financial
- Subscriptions
- Bill Pay
apis:
- aid: atomic-financial:atomic-deposit-api
  name: Atomic Deposit API
  description: Deposit (formerly Direct Deposit Switching) lets users redirect all or part of their paycheck to a new account.
    Atomic connects to thousands of payroll providers and employers, signs in on the user's behalf with their consent, and
    updates direct-deposit allocations — supporting total, fixed-amount, or percentage-based distributions.
  humanURL: https://docs.atomicfi.com/reference/transact-sdk
  baseURL: https://api.atomicfi.com
  tags:
  - Direct Deposit
  - Paycheck
  - Income
  - Distribution
  properties:
  - url: https://docs.atomicfi.com/reference/transact-sdk
    type: Documentation
  - url: https://docs.atomicfi.com/reference/api
    type: APIReference
  - url: https://console.atomicfi.com/signup
    type: Signup
  - url: graphql/atomic-financial-graphql.md
    type: GraphQL
- aid: atomic-financial:atomic-verify-api
  name: Atomic Verify API
  description: Verify provides instant income and employment verification by connecting to the consumer's payroll provider
    or employer. Lenders, landlords, and fintechs use it to retrieve verified pay statements, gross/net income, employer identity,
    and employment status without faxed pay stubs.
  humanURL: https://docs.atomicfi.com/reference/transact-sdk
  baseURL: https://api.atomicfi.com
  tags:
  - Employment Verification
  - Income Verification
  - Underwriting
  - KYC
  properties:
  - url: https://docs.atomicfi.com/reference/transact-sdk
    type: Documentation
  - url: https://docs.atomicfi.com/reference/api
    type: APIReference
- aid: atomic-financial:atomic-paylink-api
  name: Atomic PayLink API
  description: PayLink lets consumers update their card-on-file across merchants and subscription services. It is also the
    foundation for subscription discovery, bill management, and Atomic's Manage / Switch product line — enabling pause, cancel,
    reactivate, and card-update flows across thousands of merchants.
  humanURL: https://docs.atomicfi.com/reference/transact-sdk
  baseURL: https://api.atomicfi.com
  tags:
  - PayLink
  - Subscriptions
  - Card On File
  - Bill Pay
  - Merchants
  properties:
  - url: https://docs.atomicfi.com/reference/transact-sdk
    type: Documentation
  - url: https://docs.atomicfi.com/reference/api
    type: APIReference
- aid: atomic-financial:atomic-tax-api
  name: Atomic Tax API
  description: Tax retrieves W-2s, 1099s, and other tax documents directly from the user's payroll provider, and unlocks tax-refund
    use cases such as early-deposit and refund-advance products for banks and credit unions.
  humanURL: https://docs.atomicfi.com/reference/transact-sdk
  baseURL: https://api.atomicfi.com
  tags:
  - Taxes
  - W-2
  - 1099
  - Documents
  properties:
  - url: https://docs.atomicfi.com/reference/transact-sdk
    type: Documentation
  - url: https://docs.atomicfi.com/reference/api
    type: APIReference
- aid: atomic-financial:atomic-authentication-api
  name: Atomic Authentication API
  description: Atomic's authentication layer powers user-permissioned access to third-party payroll, employer, and merchant
    systems. Three flavors are supported - StandardAuth (credential / 2FA proxy), TrueAuth (deviceless, fully automated),
    and CoAuth (assisted authentication for hard-to-reach systems).
  humanURL: https://docs.atomicfi.com/reference/api
  baseURL: https://api.atomicfi.com
  tags:
  - Authentication
  - StandardAuth
  - TrueAuth
  - CoAuth
  - OAuth
  properties:
  - url: https://docs.atomicfi.com/reference/api
    type: APIReference
  - url: https://docs.atomicfi.com/reference/transact-sdk
    type: Documentation
- aid: atomic-financial:atomic-webhooks-api
  name: Atomic Webhooks API
  description: Atomic delivers task, company, and continuous-access events to your endpoint using the CloudEvents binary content
    mode. Events include task-status-updated, task-workflow-finished, payroll-data-fetched, deposit-accounts-synced, employment-updated,
    income-updated, statements-added, timesheets-added, taxes-added, and linked-account connected/disconnected.
  humanURL: https://docs.atomicfi.com/reference/webhooks
  baseURL: https://api.atomicfi.com
  tags:
  - Webhooks
  - Events
  - CloudEvents
  - Notifications
  properties:
  - url: https://docs.atomicfi.com/reference/webhooks
    type: Documentation
  - url: https://docs.atomicfi.com/reference/api
    type: APIReference
- aid: atomic-financial:atomic-transact-sdk
  name: Atomic Transact SDK
  description: The Transact SDK is the user-facing client that drives every Atomic flow — authentication, account selection,
    consent, and task execution. It ships as an embeddable web component plus native libraries for iOS, Android, React Native,
    Flutter, and Capacitor. Configuration is task-based (operation = deposit | verify | identify | tax | auth) with theming,
    language, deeplink, search-rules, and metadata hooks.
  humanURL: https://docs.atomicfi.com/reference/transact-sdk
  tags:
  - SDK
  - JavaScript
  - iOS
  - Android
  - React Native
  - Flutter
  - Capacitor
  properties:
  - url: https://docs.atomicfi.com/reference/transact-sdk
    type: Documentation
  - url: https://github.com/atomicfi/atomic-transact-javascript
    type: SDKs
  - url: https://github.com/atomicfi/atomic-transact-ios
    type: SDKs
  - url: https://github.com/atomicfi/atomic-transact-android-public
    type: SDKs
  - url: https://github.com/atomicfi/atomic-transact-react-native
    type: SDKs
  - url: https://github.com/atomicfi/atomic-transact-flutter
    type: SDKs
  - url: https://github.com/atomicfi/atomic-transact-capacitor
    type: SDKs
common:
- type: DomainSecurity
  url: security/atomic-financial-domain-security.yml
- type: Website
  url: https://atomic.financial/
- type: Documentation
  url: https://docs.atomicfi.com/
- type: APIReference
  url: https://docs.atomicfi.com/reference/api
- type: Portal
  url: https://console.atomicfi.com/
- type: Signup
  url: https://console.atomicfi.com/signup
- type: Login
  url: https://console.atomicfi.com/
- type: GitHubOrganization
  url: https://github.com/atomicfi
- type: LinkedIn
  url: https://www.linkedin.com/company/atomic-fi/
- type: YouTube
  url: https://www.youtube.com/@atomic.financial
- type: Support
  url: https://atomic.financial/help-center/
- type: Blog
  url: https://atomic.financial/insights/
- type: Webhooks
  url: https://docs.atomicfi.com/reference/webhooks
- type: Authentication
  url: https://docs.atomicfi.com/reference/api
- type: Sandbox
  url: https://docs.atomicfi.com/reference/api
- type: Features
  data:
  - name: Deposit (Direct Deposit Switching)
    description: Reroute all or part of a user's paycheck to a new account at thousands of payroll providers, with total,
      fixed-amount, or percentage allocations.
  - name: Verify (Income & Employment)
    description: Instant payroll-sourced income and employment verification for lenders, landlords, and fintechs.
  - name: PayLink
    description: User-permissioned card-on-file updating across merchants and subscription services.
  - name: Manage
    description: AI-assisted subscription and recurring-bill management with pause / cancel / reactivate.
  - name: Switch
    description: Bulk payment-method updates and card switching across merchants.
  - name: Tax
    description: W-2 and 1099 document retrieval direct from payroll providers; powers refund-advance products.
  - name: Authentication suite
    description: StandardAuth (credential / 2FA), TrueAuth (deviceless, fully automated), and CoAuth (assisted) auth modes.
  - name: Transact SDK
    description: Embeddable web component plus native libraries for iOS, Android, React Native, Flutter, and Capacitor.
  - name: Continuous Access
    description: Long-lived linked-account connections that emit webhooks when payroll, deposit accounts, statements, timesheets,
      or taxes change.
  - name: CloudEvents webhooks
    description: Task, company, and data-sync events delivered using CloudEvents binary content mode.
  - name: Console
    description: Web dashboard for API keys, webhook endpoints, secrets, and task monitoring.
  sources:
  - https://atomic.financial/
  - https://docs.atomicfi.com/reference/api
  - https://docs.atomicfi.com/reference/webhooks
  - https://docs.atomicfi.com/reference/transact-sdk
  updated: '2026-05-25'
- type: UseCases
  data:
  - name: Primacy / Direct-Deposit Capture
    description: Banks and credit unions use Deposit to move new account holders' paychecks into their institution.
  - name: Lending Income & Employment Verification
    description: Lenders verify applicant pay and employer identity instantly during underwriting.
  - name: Tax-Refund Advance
    description: Issuers retrieve W-2 / 1099 data to power early-refund and refund-advance products.
  - name: Subscription Discovery & Management
    description: Issuers, neobanks, and PFM apps surface and manage recurring subscriptions and bills.
  - name: Card-on-File Switching
    description: Issuers move card-on-file across merchants when a customer gets a new card.
  - name: Gig / 1099 Income Streams
    description: Lenders and PFM apps pull gig-platform pay history for underwriting and budgeting.
- type: Integrations
  data:
  - name: Mastercard
    description: Strategic partnership for card-switching and subscription management at scale.
  - name: Experian
    description: Identity and credit-bureau ecosystem integration.
  - name: MX
    description: Open-banking and data-aggregation partnership.
  - name: Jack Henry
    description: Core-banking distribution to community banks and credit unions.
  - name: Galileo
    description: Card-issuing platform integration.
  - name: MoneyLion
    description: Consumer-finance platform integration.
  - name: Frost Bank
    description: Direct-deposit-switching customer.
- type: Solutions
  data:
  - name: Banks & Credit Unions
    description: Win primacy through direct-deposit capture, retain through subscription management, and advance through tax
      refunds.
  - name: Lenders
    description: Underwrite with payroll-sourced income, employment, and tax data.
  - name: HR & Earned-Wage-Access
    description: Connect to payroll for employment status, pay history, and timesheet data.
  - name: Fintech & Neobank
    description: Subscription discovery, bill optimization, and direct-deposit setup as embedded features.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
- name: Atomic
  url: https://atomic.financial/