Skip to content You signed in with another tab or window. Reload to refresh your session.You signed out in another tab or window. Reload to refresh your session.You switched accounts on another tab or window. Reload to refresh your session.Dismiss alert {{ message }} interledger/ Grants Public • Notifications You must be signed in to change notification settings • Fork\\ 1 • Star\\ 4 SDK grant program Jump to bottom Jeremiah Lee edited this page 4 hours agoMay 25, 2026 · 13 revisions Overview Permalink: Overview The Interledger Foundation’s SDK grant program will provide funding to improve the developer experience of Open Payments by enabling software development kits (SDKs) to be generated from its OpenAPI document. SDKs reduce the time and effort required to integrate a web API 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. Call for proposals Permalink: Call for proposals Grants awarded 2026-05-25: • Support for RFC 9635 Grant Negotiation and Authorization Protocol (GNAP) as a security scheme in the OpenAPI Specification • Support for GNAP in the Kiota SDK generator for TypeScript, PHP, Python, and Go • Support for Arazzo Specification in the Kiota SDK generator High priority call for proposal areas: • Support for Rust and Ruby languages in the Kiota SDK generator October 2026 call for proposal areas: • Software libraries for RFC 9421 HTTP Message Signatures that can be used in Kiota and are not already satisfied by maintained libraries • Support for GNAP in the Kiota SDK generator for PHP, Python, and Go • Support for RFC 9421 (HTTP Message Signatures) in curl Note: This is a _call for proposals_, not a "feature bounty" program. What you need to know Permalink: What you need to know Who is eligible to apply? Permalink: Who is eligible to apply? Any individual or organization not subject to US sanctions. What is the timeline for this program? Permalink: What is the timeline for this program? The call for proposals started 2026-04-01 and will remain open until the grant program budget has been fully awarded. Proposals will be evaluated on an ongoing basis. How do I budget my proposal? Permalink: How do I budget my proposal? Proposals should define a work scope with a plausible, 1–12 month timeline and proportional budget of $5,000–25,000. What is the Open Payments API? Permalink: What is the Open Payments API? 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