Most nonprofit copy loses donors for reasons nobody can quite name. Mission Momentum finds them: a score across six categories, issues flagged against what strong nonprofit communications actually do, and rewrites for your two weakest sections.
Paste your appeal and get scored on donor-centered language, clarity of the ask, emotional connection, urgency, storytelling, and call to action. Flagged issues reference your actual language, not generic advice.
A thank-you that just says "thanks" is a missed chance to deepen the relationship. Get feedback on whether your letter connects the gift to real impact, or reads like a receipt.
Paste your re-engagement email or letter and get a diagnosis built for the specific challenge of winning back someone who's already drifted away, plus targeted rewrites for your weakest sections.
Paste your about page, mission statement, elevator pitch, or homepage headline. Find out whether it's clear, differentiated, and memorable, or blending into every other nonprofit's copy.
Check whether your newsletter or impact report opens with outcomes and real stories, or gets buried in activity updates and internal jargon before anyone gets to why it matters.
Mission Momentum is for anyone who has to write donor-facing copy without a communications department backing them up.
That's the one-person development shop drafting a year-end appeal alone. The executive director writing the newsletter between board meetings. The fundraising consultant who needs a second pair of eyes before copy goes out the door.
What they have in common: they're writing copy that has to work, without the luxury of a full review process.
Mission Momentum scores your copy against what strong nonprofit communications actually do, flags what isn't working, and rewrites your weakest sections so you're not starting from a blank page.
Mission Momentum runs in your browser and calls Anthropic's API directly with your own key. Nothing is stored on our servers, and unlike some of our other tools, there's no Google Sheet or script to set up.
Paste your key into any diagnostic once. It's stored only in your browser and works across all five tools automatically.
Paste your copy into any diagnostic and get scored feedback, flagged issues, and rewrites in under a minute.
The tools themselves have no subscription, no account, and no data stored on our servers. AI analysis is billed per use directly by Anthropic through your own API key. For occasional use, costs are typically a few cents per diagnostic.
Yes. Every diagnostic runs through Claude, so an Anthropic API key is required to use any of the five tools. There's no free-tier option without one.
No. Unlike Network Momentum, Mission Momentum doesn't store anything, so there's no Google Sheet or Apps Script to set up. Just an API key.
Mission Momentum is built on Anthropic's Claude. It doesn't currently support other AI providers.
Yes. Your copy is sent directly from your browser to Anthropic using your own API key when you run a diagnostic. Nothing passes through or is stored on our servers, and nothing is saved after you close the tab.
No account required. No data stored on our servers. AI analysis uses your own API key, billed per use by Anthropic. No Google Sheet or script needed.
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