Need help with your APIs? I offer API discovery, governance & evangelism services. Explore services →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC
token-io website screenshot

token-io

Token.io is an Open Banking infrastructure provider offering A2A (Account-to-Account) payments and account information services across Europe. Founded in 2016 and FCA-authorised since 2018, Token.io was the first payment initiation service provider to conduct an end-to-end PSD2-compliant Open Banking transaction. The Token.io platform connects developers and TPPs to over 4,000 banks via a single standardised API supporting Payment Initiation Services (PIS), Account Information Services (AIS), Variable Recurring Payments (VRP), refunds, payouts, settlement accounts, account verification, and Pay-by-Link checkout. Used by merchants, PSPs, fintechs, PFM apps, and platform businesses to replace card-rail payments and aggregate multibank data.

agent ready

Solid contracts, transparent operations, and an easy start — typically complete on four or five facets with one clear soft spot.

Kin Score

API Evangelist profiles token-io the way a machine reads it — 76 machine-readable artifacts across 29 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 — token-io scores 60.3/100 (strong), with a separate agent-readiness read of 48/100 (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.

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 60.3/100 · strong
Contract Quality 17.4 / 25
Developer Ergonomics 11.7 / 20
Commercial Clarity 10.0 / 20
Operational Transparency 4.8 / 13
Governance 8.8 / 12
Discoverability 7.5 / 10
Agent readiness — 48/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3

How we profile token-io

Each block below is one kind of artifact we hold for token-io. 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 29

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.

Token.io JavaScript SDK

Official Token.io JavaScript SDK for Node.js and browser environments interacting with the Token System and Open Banking API.

Token.io PHP SDK

Official Token.io PHP SDK for interacting with the Token System and Open Banking API.

Token.io C# SDK

Official Token.io C# / .NET SDK for the Open Banking API.

Token.io Objective-C SDK

Official Token.io Objective-C SDK for iOS.

Token.io iOS Webview SDK

iOS webview SDK for embedding Token.io Hosted Payments pages in native iOS apps.

Token.io Android Webview SDK

Android webview SDK for embedding Token.io Hosted Payments pages in native Android apps.

Merchant Sample (Java)

Java merchant checkout sample illustrating Token.io payment initiation flows.

Merchant Sample (JavaScript)

Simple JavaScript merchant checkout example for Token.io.

Bank Sample (Java)

Sample implementation of the Token Bank Integration API in Java.

Personal Finance Management Sample (Java)

Simple personal finance app illustrating Token.io's Access Tokens for AIS use cases.

Merchant Integration Workshop

Hands-on workshop for integrating a merchant with Token Checkout.

token-io Account on File API

These endpoints allow you to create and manage an Account on File from bank account details. The Account on File can then be used in other API requests instead of sending the fu...

token-io Accounts API

These endpoints provide authorized access to an authenticated user's account information.

token-io Authentication keys API

These endpoints are for managing the public keys that are used for JWT authentication.

token-io Banks v1 API

These endpoints filter and fetch the list of connected banks, get information on specific banks, and initiate authorization with user-selected banks using Payments v1.

token-io Banks v2 API

This endpoint filters and fetches the list of connected banks, gets information on specific banks, and initiates authorization with user-selected banks using Payments v2.

token-io Pay by Link API

These endpoints allow you to create and manage payment links. Payment links are reusable or single-use payment URLs that can be shared with customers, supporting fixed or variab...

token-io Payments v2 API

Creates and initiates a single immediate payment or a future-dated payment. Also supports initiating a Variable Recurring Payment (VRP) using an existing VRP mandate that has be...

token-io Payouts API

These endpoints allow you to make payouts.

token-io Refunds API

These endpoints allow you to handle registration, posting, and retrieval of refunds associated with original transaction account information.

token-io Reports API

These endpoints retrieve the current AIS and PIS status of connected banks.

token-io Requests - for Payments v1 or AIS API

These endpoints allow you to initiate a Payments v1 request or an AIS request, and retrieve the status of the request.

token-io Settlement Accounts API

These endpoints provide authorized access to an authenticated user's settlement account information, enabling you to create settlement accounts, retrieve settlement account deta...

token-io Sub-TPPs API

These endpoints are for resellers using Token.io's licence to create, retrieve and delete sub-TPPs.

token-io Tokens API

These endpoints retrieve all tokens, a filtered list of tokens, or a specific token, as well as allowing you to cancel an existing token.

token-io Transfers - for Payments v1 API

These endpoints relate to transfers, which are requests to move money between accounts.

token-io Variable Recurring Payments API

These endpoints enable you to initiate Variable Recurring Payments (VRP). Note, that VRP is also available in Payments v2 API.

token-io Verification API

The Verification API from token-io — 1 operation(s) for verification.

token-io Webhooks API

These endpoints configure, retrieve and remove webhooks. See Webhoo...

Scroll within the panel for all 29 ·

Open Collections 1

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).

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.

Token Io Rate Limits

3 limits

RATE LIMITS

FinOps 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.

Features 24

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.

Single Immediate Payments (SIP) via Payments v2
Future-Dated Payments
Variable Recurring Payments (VRP) — sweeping and commercial / non-sweeping
VRP Consents with fund availability checks
Account Information Services (AIS) — balances, transactions, standing orders, account details
Pay by Link — reusable payment URLs with usage and amount limits
Account on File — tokenized bank account references for repeat payments
Refunds tied to original payment transactions
Payouts — outbound transfer execution and monitoring
Settlement Accounts — virtual accounts, transaction lists, and settlement rules
Account Verification — name and account-holder confirmation checks
Banks v1 and Banks v2 — discovery of 4,000+ connected banks across Europe
Sub-TPP management for reseller and platform models
Authentication Keys API for managing JWT public keys
Webhooks for event notifications across payments and AIS lifecycle
Reports API for monitoring AIS/PIS bank status
JWT Bearer Token authentication (production and sandbox)
Basic Auth for sandbox testing
Hosted Payment Pages via iOS and Android webview SDKs
PSD2-compliant Payment Initiation Service (PIS) and Account Information Service (AIS)
FCA-authorised UK PISP / AISP since 2018
Coverage across UK and EU SEPA payment rails
Official SDKs for JavaScript, PHP, C#, and Objective-C
Sandbox environment at dashboard.sandbox.token.io

Scroll within the panel for all 24 ·

Semantic 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.

Token Io Context

0 classes · 6 properties

JSON-LD

Spectral 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.

token-io API Rules

6 rules · 4 warnings

SPECTRAL

JSON Schema 3

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.

Token.io Account

0 properties

JSON SCHEMA

Token.io Payment

0 properties

JSON SCHEMA

Token.io VRP Consent

11 properties

JSON SCHEMA

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.

Token Io Authentication

apiKey/http · 2 schemes

SECURITY

Token Io Domain Security

TLSv1.3 · DMARC

SECURITY

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.

Token Io Agentic Access

71 operations · 24 acting · 1 human-in-the-loop

71 operations · 24 acting

AGENTIC

Use Cases 11

What developers actually build with this provider — captured so the catalogue answers 'what is this for', not just 'what does this expose'.

What developers build with this provider.

E-commerce Pay-by-Bank checkout (Account-to-Account payments)
Subscription billing via VRP commercial mandates
Utility bill recurring payments via VRP
Account top-ups (investment, gaming, mobile, savings)
Charity donations (zero-fee for charitable organisations)
Personal Finance Management (PFM) multibanking via AIS
Peer-to-peer (P2P) and Business-to-Business (B2B) payments
Lending and credit risk assessment via account data
Account verification for KYC and anti-fraud workflows
Payouts and settlements for marketplaces and platforms
Reseller / Sub-TPP platform integrations

Scroll within the panel for all 11 ·

Resources

Every other property we hold for token-io — 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 2

Reference material describing how the API behaves

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Build 1

SDKs, sample code, and the tooling you integrate with

Access & Security 2

Authentication, authorization, and security posture

Operate 3

Status, limits, changes, and where to get help

Commercial 4

Pricing, plans, and the legal terms of use

Company 2

The organization behind the API

← All providers · Data indexed from github.com/api-evangelist/token-io · machine-readable index on apis.io