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 is listed with 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.
Regulatory Posture applies to this provider. Its tags matched the
Employment & Payroll regime, so
Regulatory Posture carries 15 points of the composite.
If this regime is wrong for your business, say so on your
provider repo — the
applicability map is public and we will correct it.
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for
this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero:
never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and
several others — scorable at all.
The six quality facets above are damped to 85 points between them,
because the conditional facet above carries the other
15. That is why each facet's contribution is shown against a damped
maximum: raising a quality facet moves the composite by 85% of its nominal
weight, not 100%. The full arithmetic is at apis.io/rating/.
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Agent readiness — checks not met, largest first (exact, from this profile):
Idempotency+9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics+8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card+8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
11 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
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, ...
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...
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 ...
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 delivers task, company, and continuous-access events to your endpoint using the CloudEvents binary content mode. Events include task-status-updated, task-workflow-finishe...
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...
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