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Connecting the credit and payment worlds with our cutting-edge technology

SAPI stands for “Securities API”. As a technology-first company, we take pride in building best-in-class API infrastructure.

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API

Easy, modern API integration

SAPI enables our partners to securely manage and automate the entire payment life cycle, all via a single integration. Generating offers, disbursing funds, and collecting repayments are automated and seamless.

Our API is based on REST, ensuring compatibility and providing security.

Our extensive developer centre contains detailed developer guides and API reference documents and is backed up by our dedicated support team.

One integration and one authentication give you the full financing stack: offers, disbursement and repayment collection.

Read the developer overview →

A REST API that connects to any platform, marketplace or back office you already run.

Read the developer overview →

Developer guides, API reference documents and a dedicated support team from first call to go-live.

Read the developer overview →

Illustrative API calls, not API documentation

  • POST /v1/offers200 OK// Generate an offer
  • POST /v1/advances/{id}/disburse200 OK// Disburse funds
  • GET /v1/advances/{id}/repayments200 OK// Read repayments

REPAYMENT FLOW

LIVE
  • Card payment receivedCustomer pays: £120.00£120.00
  • SAPI repayment10% withheld at source-£12.00
  • Net to your accountSettled same day£108.00
Remaining balance£3,840/£5,000
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Security

Secure infrastructure

Our platform is built to meet the highest security standards throughout the entire ecosystem including all external parties, protected by best-in-class tools and third-party providers.

Our infrastructure is designed to ensure the highest level of data and system confidentiality, integrity and availability.

We consistently test and regularly undertake audits of all systems and personnel to ensure strong and resilient processes and services.

Built to industry standards for protecting sensitive financial data and compliant with UK and EU regulation.

Systems and people are tested and audited on a regular cycle with global cybersecurity providers.

Extra controls tailored to each partner and to the requirements of their regulators and auditors.

Partner portal

Business-friendly user interface

Our business-friendly portal offers an online gateway for partners, borrowers and investors to access information in real-time.

All these functions come wrapped in intuitive, easy-to-use dashboards.

Whether you are using our services directly or via a platform partner, we've got the best user interface for you.

Multiple advances, accounts and data in a single dashboard.

A permissions model tailored to how your business is organised.

Support in multiple languages, whenever you need it.

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Have more questions?

Talk to us! We're always available to help.

Talk to us

Ready to plug financing into your platform?

One integration, one call to start.

We partner with business platforms to provide payment-linked financing that repays at source and flexes with sales.

Business funding is available up to £200,000. In exceptional cases, established and creditworthy businesses may qualify for up to £2 million, subject to affordability and underwriting.

Copyright © SAPI 2026. SAPI Group Limited is a company registered in England and Wales, with its registered office at Senna Building, Gorsuch Place, London, E2 8JF, United Kingdom. Company Number: 12014174. Information Commissioner's Office Registration: ZA927191. SAPI Group Limited is not authorised or regulated by the Financial Conduct Authority.

Payment and e-money services are provided by Modulr FS Limited (FCA FRN 900573). Electronic money is not covered by FSCS – funds are safeguarded under the Electronic Money Regulations 2011. See Modulr regulatory details here.