Catharsis is an AI grant writer that learns your mission and drafts winning proposals from a vetted evidence base — so your team can pour its hours back into the work only you can do.
“I've been the person working past midnight on a grant, when I could have been out in the community, actually making the impact. That's the trade every small nonprofit makes. It shouldn't have to.”
This is the burden Catharsis lifts — so a two-person team stops losing entire weeks to a single application.
Foundation and corporate proposals take real weeks too. One big one can swallow five.
Most of that time ends in a polite no.
Money small orgs would rather spend on programs.
For most orgs, the grant writer is also everything else.
SourcesGrantStation Grant Seeking Report (n=2,838)Funding for Good, 2025Instrumentl 2025 grant statistics
Plug in your numbers and see exactly what Catharsis gives back — in hours, dollars, and grants you could actually pursue.
Onboarding discovers your mission, community, and past wins. An LGBTQ+ org and a watershed coalition get different, curated expertise.
Catharsis aligns each opportunity to a funder's priorities before it writes a single sentence — the way the best grant pros do.
Every claim is written only from a vetted evidence base of what funded proposals share — never invented. Each line is cited.
You proofread, edit in a click, and drop your voice where it matters most. The story stays yours.
Every win feeds the next draft

This is what the ripple looks like.
Catharsis reads your mission, your location, and your budget, then scans thousands of open opportunities to surface only the ones worth your time — each with the amount, the deadline, and a tailored strategy for why you'll win it.
Generic AI hallucinates numbers and invents impact. Catharsis can't. It writes strictly from an approved pool — your documented outcomes plus a curated base of what makes grants win — and cites every claim back to a source you can check.
Each night in our county, more than 300 LGBTQ+ youth face housing instabilityEV-12. For eleven years our drop-in center has met them with dignityKB-18: 1,412 young people served, and 82% come back within a monthEV-07. This proposal closes the gap between a night of safety and a stable next stepKB-31.
Exact passage: “On any given night, more than 300 LGBTQ+ youth in the county are experiencing housing instability.”
Illustrative example with a fictional organization.
The same needs statement, written two ways. One sounds impressive until someone checks it. The other can be checked line by line.
Studies show that 90% of LGBTQ+ youth will experience homelessness, and our transformative, life-changing programs have helped thousands of young people across the region. As a nationally recognized leader in the field, we are uniquely positioned to create lasting, systemic change.
Each night in our county, more than 300 LGBTQ+ youth face housing instability. For eleven years our drop-in center has met them with dignity: 1,412 young people served, and 82% come back within a month. This proposal closes the gap between a night of safety and a stable next step.
Illustrative example with a fictional organization. The generic draft is written to show common patterns, not quoted from any product.
No. Catharsis drafts; a human at your organization always reviews, edits, and submits. We never send anything to a funder on your behalf.
Every draft is written only from your uploaded documents plus a curated evidence base — never from the model's general knowledge. Every claim is cited back to a source you can open and check yourself.
No. Your organization's documents and drafts are never used to train Anthropic's, or anyone else's, underlying AI models. See our privacy policy for the full picture.
No. Catharsis is priced for nonprofits from the start — verifying your EIN is optional and never blocks you from signing up or drafting.
Seedling is free, with two starter drafts to try Catharsis on real grants and no card required — and reports on grants you win never count, on any plan. Core adds five drafts a month and more — see the full pricing page.
You can export or delete anything at any time from account settings. If you close your account, we delete your organization's documents and drafts within 30 days.
Eddy is the assistant built into Catharsis. Ask it what's due, what's missing or which grant is your strongest fit, and it answers from your own pipeline. It also briefs you on your week from the dashboard, and walks you through any spots a draft marked to fill in, one question at a time.
Seedling includes 3 questions to try it. Core includes 15 a month, refilling on the 1st. Unlimited has no cap. Every plan sees Eddy's weekly briefing on the dashboard — see pricing.
Eddy sees only your organization's own pipeline: grants, deadlines, drafts and reports. Questions are answered through Anthropic's Claude API and are never used to train AI models. We don't store your conversation with Eddy; it stays in your browser tab, and we keep only a count of questions asked for your plan's allowance. See our privacy policy.
Only when you say so. When Eddy helps fill in a spot, it shows you the exact sentence first and changes nothing until you click Apply. Your answer is saved to your evidence base and cited in the draft, so every claim still traces back to a source.
back per grant cycle — that's real time in the community, not at the keyboard.
Catharsis drafts the structure; you bring the story, the relationships, the heart.
Apply to more of the right funders — the surest way to win more.