Most tech grants for nonprofits fund new tools. These two fund the infrastructure underneath: one pays to maintain open-source software that already exists, the other seeds early AI-and-health research before it's ready for a big ask.

What we know: OTF expects to fund up to four projects per cycle, each running about 24 months. The software must have been released for at least three years with active development and a real user base. This is maintenance money for established internet freedom tools, not seed funding for new builds.

Realistic fit: teams already maintaining mature open-source projects in the censorship circumvention or secure communications space.

What we know: Three tiers (20 projects at $25K, 10 at $50K, 5 at $100K) for 12-month AI-and-health pilots. Applicants must be affiliated with an institution eligible to receive a charitable gift from a US private foundation. The foundation's 990 history is thin (two grants totaling $205,000, both to California recipients), so this program is newer than the foundation itself.

Realistic fit: research-affiliated nonprofits or academic labs with a specific AI-in-health pilot and a named PI.

The eligibility gates here are tight. OTF's fund requires mature, actively maintained software with a documented user base. Biswas requires institutional affiliation and a clear AI-health research question. If you know an open-source maintainer or a computational biology lab that hasn't seen these, send this their way.