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Program opened April 1 with no end date; proposals evaluated continuously until budget is exhausted.
Open Payments SDK Grant Program is sponsored by Interledger Foundation. This grant program supports projects that improve the developer experience of integrating Open Payments into applications and e-commerce platforms.
It focuses on SDK generation from the OpenAPI specification using tools like Kiota, aiming to support scalable, consistent API integrations that reduce technical complexity and accelerate the adoption of open payments technology.
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Open Payments SDK grant program | Interledger Foundation Open Payments SDK grant program Open Payments SDK grant program This grant is open from April 1st and applicants will be reviewed on an ongoing basis. Software development kits (SDKs) reduce the time and effort required to integrate an API like Open Payments into an app.
However, creating bespoke SDKs in many programming languages requires broad expertise and duplicative maintenance effort. Tools exist to automate the creation and maintenance of SDKs, but do not yet support the latest security features used by Open Payments.
The Interledger Foundation seeks to improve the developer experience of Open Payments by funding proposals in these themes: Support for RFC 9635 Grant Negotiation and Authorization Protocol (GNAP) as a security scheme in the OpenAPI Specification (up to $25,000) Support for GNAP in the Kiota SDK generator for TypeScript, PHP, Python, and Go (up to $10,000 per language) Support for Rust and Ruby languages in the Kiota SDK generator (up to $25,000 per language) Software libraries for RFC 9421 HTTP Message Signatures (up to $5,000 per language) Documenting Open Payments flows in Arazzo Specification (up to $1,000) Support for Arazzo Specification in the Kiota SDK generator (up to $25,000) Support for RFC 9421 in curl (up to $10,000) Open Payments is a universal HTTP API for initiating and authorizing a payment on any payment network.
Any financial service provider can implement the Open Payments API to enable its customers to use Open Payments. Websites and apps then integrate Open Payments as API clients to facilitate payments on behalf of their customers. Who is eligible to apply?
Any individual or organization not subject to US sanctions . What is the timeline for this program? Proposals will be evaluated on an ongoing basis.
The call for proposals will remain open until the grant program budget has been fully awarded. How do I budget my proposal? Proposals should define a work scope with a plausible, 3–12 month timeline and proportional budget.
Where can I get more information? Full program details are available here Ask in GitHub Discussions or in the #cfp-sdk channel in our community Slack workspace
According to the current listing, eligibility includes: Any individual or organization not subject to US sanctions. Proposals should define a work scope with a plausible, 3–12 month timeline. Confirm the full requirements in the official notice before applying.
The current listing shows $5,000 - $50,000. Verify award ceilings, matching requirements, and allowable costs in the official notice.
Open Payments SDK Grant Program is funded by Interledger Foundation. Verify program details on the funder's official page before applying.
This listing is flagged as international in scope. Check the official notice for country-specific restrictions before applying.
Applications go through the funder's official portal — the Apply Now link on this page goes there directly.
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