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)

Complete details: https://github.com/interledger/Grants/wiki/SDK-grant-program

Questions? Ask on GitHub.

PREAMBLE

The Interledger on Campus (IoC) Mini-Grant Program, launched by the Interledger Foundation, supports student-led innovation, learning, and community engagement focused on open payments and digital financial inclusion.

Through this initiative, student organizations at accredited universities worldwide may apply for funding of up to USD $5,000 to design and implement projects that explore interoperable payment systems and expand awareness of equitable financial technologies. The program encourages students to take leadership roles in building campus communities that understand and experiment with open financial infrastructure, including technologies such as the Interledger Protocol.

The primary goal of the Interledger on Campus program is to empower student leaders to explore, promote, and experiment with open payments and digital financial inclusion within their universities and surrounding communities.

Key Program Parameters

Applicants should review the following information carefully before preparing and submitting a proposal.

Target Audience: This program is intended for student-led organizations at accredited universities around the world. Both existing clubs and newly formed student groups are eligible to apply. Projects must be initiated and led by students, with the support of a faculty advisor or university administrator.

Grant Amount: Selected student organizations may receive up to USD $5,000 to support their proposed project.

Project Duration: Projects should be implemented within 3 months and must be completed before December 31, 2026.

Application Deadline: Friday, July 31, 2026, at 11:59 pm (ET/EDT)

Eligible Activities: Funding may support student-organized initiatives that advance learning and experimentation around open payments, including:

• Workshops and training sessions on open payments and digital financial infrastructure
• Campus hackathons or innovation challenges
• Student research projects, policy briefs, or publications
• Awareness campaigns and community outreach initiatives
• Development of small technology prototypes or payment tools

Applicants are strongly encouraged to review the Interledger on Campus program RESOURCE FOLDER before completing this form to ensure their proposal aligns with program goals and eligibility requirements.

If you have questions about eligibility, application preparation, or program details, please contact the Interledger Foundation program team [Email: programteam@interledger.org] before submitting your application.

We look forward to learning about the innovative ways students around the world are advancing open, inclusive financial systems.

PREAMBLE

The Interledger on Local Impact Mini-Grant Program, launched by the Interledger Foundation, supports community-led innovation, learning, and community engagement focused on open payments and digital financial inclusion.

Through this initiative, community organizations and local community leaders worldwide may apply for funding ranging from USD $500 to $3,000 to design and implement projects that explore interoperable payment systems and expand awareness of equitable financial technologies. The program encourages local communities to take leadership roles in building local communities that understand and experiment with open financial infrastructure, including technologies such as the Interledger Protocol.

The Local Impact Grants program provides small, flexible grants to support local community groups and individual community leaders in designing and producing meetups, workshops, demos, sprints, hackdays and conversations at existing community spaces and groups, including but not limited to coworking hubs, open-source groups, hacker spaces, incubators, accelerators, startup communities and fintech meetups. 

The primary goal of the Interledger Local Impact program is to empower local communities and leaders to explore, promote, and experiment with open payments and digital financial inclusion within their regions and surrounding communities.

Key Program Parameters

Applicants should review the following information carefully before preparing and submitting a proposal.

Target Audience: 

This program is intended for community-led organizations around the world. Both individual community leaders and community groups are eligible to apply. 

• Individual Community Leaders
• Civil society organizations
• Cooperatives
• Existing community spaces or groups such as coworking hubs, Innovation hubs, hacker spaces, incubators, accelerators, and startup communities
• Communities centred around Policy, Consumer rights, FinTech, Financial access, Payments ecosystems, Open Source, Open Innovation, Open Standards, DPI/ DPG, SDGs, research groups and Community support groups 
• Mission-aligned businesses and social enterprises

Supported activities:

• Meetups and community conversations
• Workshops and demos
• Hackdays, sprints or participatory learning sessions
• Local ecosystem gatherings
• Research, storytelling, and awareness campaigns
• Content/material on open payments and digital financial infrastructure

Grant Amount: 

• Selected projects may receive between $500 to USD $3,000 to support their proposed project.

Project Duration: 

• Projects must be completed within 6 months of accepting the grant.

Application Deadline: 

• Wednesday, November 11, 2026, at 11:59 pm (ET/EDT)

Eligible Activities: 

Funding may support community-organized initiatives that advance learning and experimentation around open payments, including:

• Workshops and training sessions on open payments and digital financial infrastructure
• Sprints or innovation challenges
• Research projects, policy briefs, or publications
• Awareness campaigns and community outreach initiatives
• Design, development and production of content/material on open payments and digital financial infrastructure

Applicants are strongly encouraged to review the Interledger Local Impact Grants program RESOURCE FOLDER before completing this form to ensure their proposal aligns with program goals and eligibility requirements.

If you have questions about eligibility, application preparation, or program details, please contact the Interledger Foundation program team [Email: programteam@interledger.org] before submitting your application.

We look forward to learning about the innovative ways communities around the world are advancing open, inclusive financial systems.