Fin
Fin (fin.com) is a global cross-border payments infrastructure company that moves money internationally over stablecoin rails and direct liquidity networks instead of traditional correspondent banking, settling in minutes rather than days. Its Orchestration API lets businesses onboard individual and business customers (KYC/KYB), create beneficiaries, quote FX and fees, send transfer and batch payouts, provision multi-currency virtual accounts that convert fiat deposits to crypto (e.g. USD to USDC), and run crypto orchestration across exchanges. Founded by ex-Citadel engineers, Fin raised a $17M Series A to bring its stablecoin-powered high-value payments product to market. This profile was enriched from the public developer surface at developer.fin.com.
Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.
API Evangelist profiles Fin the way a machine reads it — 24 machine-readable artifacts across 1 API, 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 — Fin scores 38.8/100 (thin), with a separate agent-readiness read of 30/100 (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 2026-09-08 · rubric v0.20.0
Put this on your own site. The badge is drawn live from Fin's current Kin Score — paste it once and it updates itself every time the score is recomputed. It follows your visitor's light or dark setting, and it links back here so anyone who sees it can read the full breakdown.
<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/fin/"
title="Fin on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/fin.svg"
alt="Fin Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>[](https://providers.apievangelist.com/providers/fin/)<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/fin/"
title="Fin on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/fin/card.svg"
alt="Fin Kin Score — API readiness rating by API Evangelist" width="340" height="120" loading="lazy">
</a>More shapes, themes and sizes → · Score as JSON · How badges work
How we profile Fin
Each block below is one kind of artifact we hold for Fin. 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 10
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.
Fin Authentication API
A modified OAuth 2.0 Client Credential Flow
Fin Balances API
Retrieve wallet balance information
Fin Beneficiaries API
Manage beneficiary accounts for payments and transfers
Fin Catalogue API
A set of endpoints to retrieve contextual data to assemble requests to fin.com's API
Fin Crypto Orchestration API
The Crypto Orchestration API from Fin — 3 operation(s) for crypto orchestration.
Fin Customers API
Customer management and document upload operations
Fin Fees & FX Rates API
Retrieve fees and foreign exchange rates
Fin Transactions API
Transaction history and management for beneficiaries
Fin Virtual Accounts API
Create and manage virtual accounts for USD to USDC conversions
Fin Webhooks API
The Webhooks API from Fin — 0 operation(s) for webhooks.
Scroll within the panel for all 10 ·
Open Collections 10
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONFin.com Authentication API
OPEN COLLECTIONFin.com Authentication Balances API
OPEN COLLECTIONFin.com Authentication Beneficiaries API
OPEN COLLECTIONFin.com Authentication Catalogue API
OPEN COLLECTIONFin.com Authentication Crypto Orchestration API
OPEN COLLECTIONFin.com Authentication Customers API
OPEN COLLECTIONFin.com Authentication Fees & FX Rates API
OPEN COLLECTIONFin.com Authentication Transactions API
OPEN COLLECTIONFin.com Authentication Virtual Accounts API
OPEN COLLECTIONScroll within the panel for all 10 ·
Event 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.
Fin Webhooks
ASYNCAPISecurity Posture 2
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.
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 Fin — 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 3
Portal, sign-up, and the first successful call
Documentation 3
Reference material describing how the API behaves
Agent Surfaces 4
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 6
Pagination, idempotency, versioning, errors, and events
Access & Security 2
Authentication, authorization, and security posture
Operate 4
Status, limits, changes, and where to get help
Company 2
The organization behind the API
Other 1
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/fin · machine-readable index on apis.io
This is an independent, third-party profile of Fin, 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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you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.