Fiserv
Fiserv is a global provider of financial services technology solutions, offering a wide range of products and services to help clients in the banking, payments, and wealth management industries.
Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.
API Evangelist profiles Fiserv the way a machine reads it — 73 machine-readable artifacts across 4 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 — Fiserv scores 39.8/100 (developing), with a separate agent-readiness read of 28/100 (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. 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
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How we profile Fiserv
Each block below is one kind of artifact we hold for Fiserv. 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 27
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.
Fiserv Payment Events
Fiserv provides webhook-based event notifications across the payments lifecycle. Merchants can subscribe to webhooks to receive real-time notifications for key events including ...
Fiserv 3-D Secure API
Manage 3-D Secure authentication flows for cardholder verification.
Fiserv Accounts API
Create, retrieve, update, and manage deposit and loan accounts.
Fiserv Authorization API
Authorize payment transactions against a cardholder account.
Fiserv Authorizations API
Create and manage transaction authorizations.
Fiserv BIN API
Look up Bank Identification Number (BIN) data for cards.
Fiserv Cancels API
Cancel or void previously authorized transactions.
Fiserv Capture API
Capture previously authorized transactions for settlement.
Fiserv Captures API
Capture previously authorized transactions for settlement.
Fiserv Cards API
Issue, activate, manage, and retrieve card details.
Fiserv Charges API
Process payment charges including authorizations, sales, and pre-authorizations.
Fiserv Funding API
Retrieve funding information for settled transactions.
Fiserv Inquire API
Inquire about the status of transactions and merchant information.
Fiserv Limits API
Manage credit, temporary credit, and cash limits.
Fiserv Parties API
Manage customer and party information including personal details and contact information.
Fiserv Payments API
Process payment transactions including credits, debits, and bill payments.
Fiserv Profile API
Manage stored customer payment profiles for recurring or future transactions.
Fiserv Refund API
Refund previously captured and settled transactions.
Fiserv Refunds API
Process refunds against previously captured transactions.
Fiserv Settlement API
Retrieve settlement status for processed transactions.
Fiserv Signature Capture API
Submit signature capture data for completed transactions.
Fiserv Statements API
Retrieve account statements and statement transactions.
Fiserv Tokens API
Create, manage, and use payment tokens for secure storage of payment credentials.
Fiserv Transactions API
Retrieve and manage account transaction history and details.
Fiserv Transfers API
Initiate and manage fund transfers between accounts.
Fiserv Verifications API
Verify payment cards or tokens before processing a transaction.
Fiserv Void API
Void previously authorized transactions before settlement.
Scroll within the panel for all 27 ·
Open Collections 31
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 COLLECTIONFiserv BankingHub 3-D Secure API
OPEN COLLECTIONFiserv BankingHub 3-D Secure Accounts API
OPEN COLLECTIONFiserv BankingHub 3-D Secure Authorization API
OPEN COLLECTIONFiserv BankingHub 3-D Secure Authorizations API
OPEN COLLECTIONFiserv BankingHub API
OPEN COLLECTIONFiserv BankingHub 3-D Secure BIN API
OPEN COLLECTIONFiserv BankingHub 3-D Secure Cancels API
OPEN COLLECTIONFiserv BankingHub 3-D Secure Capture API
OPEN COLLECTIONFiserv BankingHub 3-D Secure Captures API
OPEN COLLECTIONFiserv CardDeveloper API
OPEN COLLECTIONFiserv CardPointe Gateway API
OPEN COLLECTIONFiserv BankingHub 3-D Secure Cards API
OPEN COLLECTIONFiserv BankingHub 3-D Secure Charges API
OPEN COLLECTIONFiserv CommerceHub API
OPEN COLLECTIONFiserv BankingHub 3-D Secure Funding API
OPEN COLLECTIONFiserv BankingHub 3-D Secure Inquire API
OPEN COLLECTIONFiserv BankingHub 3-D Secure Limits API
OPEN COLLECTIONFiserv BankingHub 3-D Secure Parties API
OPEN COLLECTIONFiserv BankingHub 3-D Secure Payments API
OPEN COLLECTIONFiserv BankingHub 3-D Secure Profile API
OPEN COLLECTIONFiserv BankingHub 3-D Secure Refund API
OPEN COLLECTIONFiserv BankingHub 3-D Secure Refunds API
OPEN COLLECTIONFiserv BankingHub 3-D Secure Settlement API
OPEN COLLECTIONFiserv BankingHub 3-D Secure Signature Capture API
OPEN COLLECTIONFiserv BankingHub 3-D Secure Statements API
OPEN COLLECTIONFiserv BankingHub 3-D Secure Tokens API
OPEN COLLECTIONFiserv BankingHub 3-D Secure Transactions API
OPEN COLLECTIONFiserv BankingHub 3-D Secure Transfers API
OPEN COLLECTIONFiserv BankingHub 3-D Secure Verifications API
OPEN COLLECTIONFiserv BankingHub 3-D Secure Void API
OPEN COLLECTIONScroll within the panel for all 31 ·
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 things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.
Published pricing tiers and plan structures.
Fiserv Plans Pricing
PLANSRate 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.
Fiserv 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.
Fiserv Finops
FINOPSFeatures 3
The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.
Notable capabilities this provider offers.
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.
Fiserv Payment Events
Fiserv provides webhook-based event notifications across the payments lifecycle. Merchants can subscribe to webhooks to receive real-time notifications for key events including ...
ASYNCAPISemantic 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.
Fiserv Context
JSON-LDSpectral Rules 2
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.
Fiserv API Rules
SPECTRALFiserv API Rules
SPECTRALJSON Schema 2
Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.
Standalone JSON Schema definitions for this provider's data models.
Fiserv Account
JSON SCHEMAFiserv Payment Transaction
JSON SCHEMASecurity 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 Fiserv — 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 3
Reference material describing how the API behaves
Agent Surfaces 2
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 1
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 1
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
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/fiserv · machine-readable index on apis.io
This is an independent, third-party profile of Fiserv, 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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