This is not our API. This repository is an independent, third-party profile of a company's publicly available API surface, maintained by API Evangelist. API Evangelist does not operate, host, resell, or support this company's APIs, and is not affiliated with or endorsed by the company unless stated on the profile.
Where the information came from. Everything here is assembled from material a member of the public can reach with a browser and no credentials — the company's own website, developer portal and documentation, the specifications it publishes for public use (OpenAPI, AsyncAPI, JSON Schema,
apis.json,llms.txtand similar), its public repositories, and its public status, pricing and changelog pages. Nothing here is obtained by breaching a system, defeating an access control, or using credentials of any kind.The rating is an independent assessment. The Kin Score and Agent Readiness rating are independently calculated scores of a company's public API artifacts, produced by API Evangelist against a published rubric. They are not certifications, endorsements, security assessments, or audits, and they score published artifacts — not the quality, safety, or security of the software.
Corrections, re-scores, and removal are free. No partnership, contract, or purchase is required, and you do not need to justify the request.
- Something wrong? Open an issue on this repository, or email info@apievangelist.com.
- Published something new? Ask for a re-score and we will re-run the rating.
- Want the listing taken down? Say so and we will honor it. The profile is reduced to your company name, a factual description, and a link to your own site, and the company is recorded as unrated — never scored zero for having asked.
Response times. Acknowledgement within one business day; removal or restriction within two business days; corrections and re-scores within five business days.
On a security or compliance team? Email info@apievangelist.com with security in the subject line and you will get a person, not a form. We will tell you exactly which public URLs this profile was built from so your team can see the same surface we did, and we will take the listing down on request while you work through it.
Full detail: Where this data comes from
Pay.UK Limited is the recognised operator and standards body for the United Kingdom's interbank retail payment systems. It runs the domestic rails that move most of the money in the UK economy — Bacs (batch Direct Debit and Direct Credit), the Faster Payment System (24/7 real-time account-to-account payments), and the Image Clearing System for cheques — alongside the Current Account Switch Service. It owns the industry overlay services Confirmation of Payee and Request to Pay, and through its Standards Authority it defines UK payments standards and drives the ISO 20022 migration underpinning the New Payments Architecture (NPA).
Pay.UK is a scheme and standards operator, not a self-serve API platform. It publishes rulebooks, participation requirements, and ISO 20022 message specifications rather than an open public API. Its machine-readable technical standards are distributed through the gated Standards Source and Faster Payment System Standards Library portals (single-login, registration required). No first-party public developer portal, self-serve signup, or downloadable OpenAPI was found.
APIs.json: https://raw.githubusercontent.com/api-evangelist/pay-uk/refs/heads/main/apis.yml
United Kingdom
- Payments
- United Kingdom
- Real-Time Payments
- ISO 20022
- Account-to-Account
- Faster Payments
- Direct Debit
- Payment Scheme
- Standards Body
- Confirmation of Payee
- Created: 2026-07-24
- Modified: 2026-07-24
- Confirmation of Payee
- Account Verification
- Fraud Prevention
- ISO 20022
- Faster Payment System — 24/7 real-time account-to-account payments, migrating to ISO 20022: overview · ISO 20022 Standards Library
- Bacs — batch Direct Debit and Direct Credit: overview
- Image Clearing System — cheque image clearing: overview
- Request to Pay — overlay messaging service: overview
- Standards Authority — ISO 20022 and UK payments standards: overview · ISO 20022 · Accessing Standards
FN: Kin Lane Email: kin@apievangelist.com