Fiat Republic
Fiat Republic is a UK- and EU-regulated Banking-as-a-Service provider that gives crypto platforms, exchanges and stablecoin issuers a single API and single liability contract for local fiat rails. Its RESTful API automates end-user onboarding with embedded KYC/AML, named and virtual fiat accounts, pay-ins and payouts across GBP (Faster Payments / CHAPS), EUR (SEPA / SEPA Instant) and USD schemes, FX conversion, Verification of Payee (VoP), returns and recalls, and its Oxygen transaction-monitoring product. Access is via OAuth 2.0 client-credentials with PAYMENTS and OXYGEN scopes, HMAC-SHA256-signed webhooks using the HTTP Message Signatures standard, idempotency keys, and separate sandbox and production environments. Fiat Republic operates as an Electronic Money Institution regulated by the FCA (UK) and De Nederlandsche Bank (NL), with MSB registrations in the US and Canada.
Solid contracts, transparent operations, and an easy start — typically complete on four or five facets with one clear soft spot.
API Evangelist profiles Fiat Republic the way a machine reads it — 40 machine-readable artifacts across 6 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Fiat Republic scores 55.2/100 (strong), with a separate agent-readiness read of 35/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-10-17 · rubric v0.24.0
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How we profile Fiat Republic
Each block below is one kind of artifact we hold for Fiat Republic. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 32
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Fiat Republic API
RESTful API for crypto and stablecoin platforms to onboard end users (KYC/AML), open named and virtual fiat accounts, receive pay-ins and send payouts across GBP, EUR and USD sc...
Fiat Republic Alerts API
The Alerts API from Fiat Republic — 2 operation(s) for alerts.
Fiat Republic Conversions API
The Conversions API from Fiat Republic — 2 operation(s) for conversions.
Fiat Republic Documents API
The Documents API from Fiat Republic — 2 operation(s) for documents.
Fiat Republic Emt Payee API
The Emt Payee API from Fiat Republic — 2 operation(s) for emt payee.
Fiat Republic Emt Payers API
The Emt Payers API from Fiat Republic — 2 operation(s) for emt payers.
Fiat Republic Emt Payments API
The Emt Payments API from Fiat Republic — 2 operation(s) for emt payments.
Fiat Republic Emt Wallets API
The Emt Wallets API from Fiat Republic — 2 operation(s) for emt wallets.
Fiat Republic End Users API
The End Users API from Fiat Republic — 4 operation(s) for end users.
Fiat Republic Entities API
The Entities API from Fiat Republic — 2 operation(s) for entities.
Fiat Republic Events API
The Events API from Fiat Republic — 3 operation(s) for events.
Fiat Republic Fiat Accounts API
The Fiat Accounts API from Fiat Republic — 3 operation(s) for fiat accounts.
Fiat Republic Investigations API
The Investigations API from Fiat Republic — 2 operation(s) for investigations.
Fiat Republic Member Businesses API
The Member Businesses API from Fiat Republic — 2 operation(s) for member businesses.
Fiat Republic Member Details API
The Member Details API from Fiat Republic — 1 operation(s) for member details.
Fiat Republic Member Review Settings API
The Member Review Settings API from Fiat Republic — 1 operation(s) for member review settings.
Fiat Republic OAuth API
The Oauth API from Fiat Republic — 1 operation(s) for oauth.
Fiat Republic Payees API
The Payees API from Fiat Republic — 6 operation(s) for payees.
Fiat Republic Payers API
The Payers API from Fiat Republic — 2 operation(s) for payers.
Fiat Republic Payment Channels API
The Payment Channels API from Fiat Republic — 2 operation(s) for payment channels.
Fiat Republic Payment Returns API
The Payment Returns API from Fiat Republic — 3 operation(s) for payment returns.
Fiat Republic Payments API
The Payments API from Fiat Republic — 3 operation(s) for payments.
Fiat Republic Platform Users API
The Platform Users API from Fiat Republic — 2 operation(s) for platform users.
Fiat Republic Quotes API
The Quotes API from Fiat Republic — 1 operation(s) for quotes.
Fiat Republic Rules API
The Rules API from Fiat Republic — 3 operation(s) for rules.
Fiat Republic Simulator API
The Simulator API from Fiat Republic — 1 operation(s) for simulator.
Fiat Republic Transactions API
The Transactions API from Fiat Republic — 2 operation(s) for transactions.
Fiat Republic Transactions Summary API
The Transactions Summary API from Fiat Republic — 1 operation(s) for transactions summary.
Fiat Republic Virtual Account Transactions API
The Virtual Account Transactions API from Fiat Republic — 1 operation(s) for virtual account transactions.
Fiat Republic Virtual Accounts API
The Virtual Accounts API from Fiat Republic — 2 operation(s) for virtual accounts.
Fiat Republic Webhook Notifications API
The Webhook Notifications API from Fiat Republic — 1 operation(s) for webhook notifications.
Fiat Republic Webhooks API
The Webhooks API from Fiat Republic — 2 operation(s) for webhooks.
Scroll within the panel for all 32 ·
Rate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Fiat Republic Rate Limits
RATE LIMITSEvent Specifications 1
Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Fiat Republic Webhooks
ASYNCAPISpectral Rules 1
Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.
Fiat Republic API Rules
SPECTRALSecurity Posture 3
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Scopes 1
OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.
OAuth scopes governing access to this provider's APIs.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Fiat Republic — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 5
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 4
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 8
Pagination, idempotency, versioning, errors, and events
Scroll within the panel for all 8 ·
Build 2
SDKs, sample code, and the tooling you integrate with
Access & Security 7
Authentication, authorization, and security posture
Scroll within the panel for all 7 ·
Operate 6
Status, limits, changes, and where to get help
Commercial 1
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 2
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/fiat-republic · machine-readable index on apis.io
This is an independent, third-party profile of Fiat Republic, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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