Citigroup
Citigroup (Citi) is a global, diversified money-center financial services holding company headquartered in New York City, serving consumers, corporations, governments, and institutions across roughly 90 countries. Citi exposes public API access through two distinct, voluntary developer surfaces. The retail Citi Developer Hub (developer.citi.com, now consolidated into the Citi Partner Portal at partner.citi.com) was one of the earliest bank open-banking programs, launched in 2016, and documents seven core API product families: Accounts, Authorize, Customers, Money Movement, Utilities, Onboarding, and Pay with Points, secured with OAuth 2.0 authorization-code and consent flows against a developer sandbox. The corporate surface is CitiConnect, part of Treasury and Trade Solutions (TTS), which has processed more than one billion API calls since 2017 and exposes real-time payments, cross-border WorldLink FX, statements and reporting, request-to-pay, proof-of-payment, and account-balance APIs across the full TTS footprint, integrated through ERP and TMS systems with OAuth 2.0 and mutual TLS. As a US institution Citi participates in voluntary open finance rather than a single mandated contract: it is a co-owner of the Akoya data-access network and shares consumer-permissioned data under emerging FDX / CFPB Section 1033 norms. No public downloadable OpenAPI, Swagger, SDK, or Postman artifacts are published; documentation is HTML and partner-gated, so entries below are documented humanURL references without harvested machine-readable specs.
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 Citigroup the way a machine reads it — 18 machine-readable artifacts across 11 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 — Citigroup scores 38.8/100 (thin), with a separate agent-readiness read of 20/100 (agent aware). 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 Citigroup
Each block below is one kind of artifact we hold for Citigroup. 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 11
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.
Citi Accounts and Transactions API
The Citi Accounts and Transactions API provides authorized third-party access to retail customer accounts, current and available balances, and transaction histories, enabling ac...
Citi Money Movement API
The Citi Money Movement API enables authorized payment initiation from Citi retail accounts, including domestic ACH, wire, and internal book transfers, on behalf of a consenting...
Citi Authorize API
The Citi Authorize API handles the OAuth 2.0 authorization-code and customer-consent flows required for third-party applications to gain scoped access to a customer's Citi accou...
Citi Customers API
The Citi Customers API provides authorized access to retail customer profile information, including contact details and demographic data, for use in onboarding, personalization,...
Citi Onboarding API
The Citi Onboarding API enables digital account opening, document submission, and KYC-driven origination workflows for onboarding new retail customers onto Citi products. It is ...
Citi Pay with Points API
The Citi Pay with Points API enables Citi cardholders to redeem ThankYou points and other rewards balances for purchases at merchant checkouts and inside partner applications. I...
Citi Utilities API
The Citi Utilities API provides supporting reference data such as foreign-exchange rates, branch and ATM locators, and cut-off times used to support transactional workflows acro...
CitiConnect API
CitiConnect is the corporate treasury and trade integration channel within Citi's Treasury and Trade Solutions (TTS) business, exposing APIs for real-time payment initiation, pa...
CitiConnect WorldLink Payment Services API
The CitiConnect WorldLink Payment Services API delivers cross-border, multi-currency payment capabilities within the CitiConnect suite, including FX rate enquiry, FX deal bookin...
CitiConnect FX (Real-Time FX) API
The CitiConnect FX API provides real-time foreign-exchange information and execution for corporate treasury clients, supporting FX rate requests and the booking of FX contracts ...
CitiConnect Statements and Reporting API
The CitiConnect Statements and Reporting API delivers self-service reports, account statements, intraday and prior-day balance and transaction reporting, cut-off times, and proo...
Scroll within the panel for all 11 ·
Pricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the six things the Kin Score reads for commercial clarity.
Published pricing tiers and plan structures.
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.
Citigroup Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.
Cost, billing, and metering signals for API financial operations.
Citigroup Finops
FINOPSSemantic Vocabularies 1
JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.
JSON-LD contexts and semantic vocabularies used across these APIs.
Citigroup Context
JSON-LDSpectral 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.
Citigroup API Rules
SPECTRALSecurity 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 Citigroup — 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 2
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 5
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
Operate 2
Status, limits, changes, and where to get help
Commercial 4
Pricing, plans, and the legal terms of use
Company 4
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/citigroup · machine-readable index on apis.io