First Horizon
First Horizon Corporation is a Fortune 500 financial services holding company headquartered in Memphis, Tennessee. Through First Horizon Bank it provides commercial, private, consumer, and mortgage banking, wealth management, and capital markets services across the southern United States. First Horizon operates a real API Banking developer portal for Treasury Management clients, exposing RESTful products for money movement, ACH origination, real-time account information, and routing-number lookups, secured with OAuth 2.0 and a sandbox for build-and-test integration. Onboarding is partner/relationship gated and no OpenAPI/Swagger specifications are publicly downloadable — this repository captures the documented API surface honestly, humanURL-only.
More than an index entry, but the surface is still mostly links rather than artifacts — the cohort most likely to move a full band from modest, well-targeted work.
API Evangelist profiles First Horizon the way a machine reads it — 7 machine-readable artifacts across 5 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 — First Horizon scores 17.8/100 (emerging), with a separate agent-readiness read of 10/100 (human only). 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.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile First Horizon
Each block below is one kind of artifact we hold for First Horizon. 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 5
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.
Move Money Transfer v1
Move Money Transfer is First Horizon's RESTful payments-initiation API for Treasury Management clients, used to originate and manage funds transfers programmatically from an ERP...
ACH Origination
The ACH Origination API lets First Horizon Treasury Management clients originate ACH transactions directly from their ERP or accounting system via a RESTful interface, paired wi...
Account Information
The Account Information API provides Treasury Management clients real-time visibility into account information, balances, and transactions through a RESTful interface, for recon...
ABA Lookup v1
ABA Lookup is a RESTful utility endpoint on First Horizon's API Banking platform that validates and resolves U.S. ABA routing transit numbers, supporting payment-instruction val...
BIC Lookup v1
BIC Lookup is a RESTful utility endpoint on First Horizon's API Banking platform that validates and resolves SWIFT/BIC codes, supporting the validation of international payment ...
Security 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.
Resources
Every other property we hold for First Horizon — 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 1
Portal, sign-up, and the first successful call
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 1
Pagination, idempotency, versioning, errors, and events
Access & Security 3
Authentication, authorization, and security posture
Company 2
The organization behind the API
Other 1
Properties that don't map to a standard resource type
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