Your product changed. Did your docs, website, and help center?
Thally is the product knowledge layer for software teams. It keeps your docs, website, and support platform in sync as your product changes.
Built for the people and AI tools reading your product knowledge
You know the drill.
What was meant to ship?
Read the product brief and tickets, then compare them with the merged change.
Which public surfaces are now out of step?
Someone still has to find every place where customers learn about the product.
API reference
Quickstart guide
Website
Help center
Old code samples
Integration guides
What actually changed?
Check the changelog, code diff, tests, and pull request discussion.
Six surfaces, no shared owner
Most teams update the docs and stop there because another release is already waiting.
The work before the work
A feature ships. Then someone has to work out what changed and every public place that now says something wrong.
You read product notes, tickets, changelogs, and the diff, then check the docs, website, help center, code samples, and integration guides. Thally does that detective work before it drafts a word.
Stale docs no longer mislead one reader at a time.
When an old API or workflow remains documented, AI tools can recommend it, generate it into code, and repeat the mistake at scale. Thally serves people and AI tools from the same source, then updates that source when the product changes.
One product change. Every connected surface, updated.
Thally works out what each merge means, traces where the impact lands, and drafts only the updates the evidence supports.
Connect the repos that define and explain your product.
Choose the product and customer-facing repositories Thally should watch. You decide exactly what Thally can see.
Work out what changed before touching a word.
Track evaluates each merged change, gathers evidence, and works out what it means for the people using your product.
Find every connected surface the change affects.
Thally traces the impact across your docs, website, help center, and changelog, then drafts only the updates the evidence supports.
You approve what ships, every time.
Your team reviews, edits, and merges. A no-change result is valid. Nothing publishes without a human.
Evidence first. Your surfaces stay yours.
Thally removes the detective work while your team keeps judgment, publishing authority, and ownership of every source.
Your content stays in your repositories
Your docs, website, and content remain as source files in Git. There is nothing to export because we never hold the source.
The publishing engine is open source
The engine behind Thally Cloud is available on GitHub under the MIT license. You can host it yourself at any time.
Self-hosting stays available
Clone your docs repository and deploy the open-source engine wherever Next.js runs. Managed hosting is a service, not a content lock-in.
Your domain stays under your control
Thally never takes ownership of your domain. Use it wherever you deploy the site.
Cancellation leaves you with the source
Your repositories and the MIT-licensed engine remain yours. If Cloud hosting ends, you can deploy your docs site elsewhere.
A human approves every update
Thally drafts the work, your team decides what publishes. Nothing goes live without review.
Understand before generating
Thally works out what a change means and maps the affected surfaces before drafting new words.
A no-change result is valid
When the evidence shows nothing needs to change, Thally says so instead of inventing an update.
A complete docs platform underneath.
Thally is also where your documentation lives, with custom domains, search, versioned deploys, rollbacks, and AI assistants included.
1---
2title: Quickstart
3description: Install the SDK in two minutes
4---
5## Install the SDK
6<CodeGroup lang="ts">
Write once.Thally creates every format.
How do I rotate an access token?
Send a POST request to /v1/tokens/rotate with your current token. The previous token stays valid for 60 seconds so in-flight requests keep working.
Answers with receipts.Grounded chat cites your docs.
A readiness score you can gate CI on
Score how well each page serves human and AI readers, and fail builds that ship gaps.
Search without leaving the docs
Hybrid keyword and semantic search with grounded answers, all from one index.
Review every update in one queue
Drafts from merged changes, drift sweeps, and @thally mentions, approved before merge.
Give AI tools a direct path
llms.txt, Markdown projections, and a remote MCP server on every deployed site.
A feature ships, and your team should not have to hunt for every page that now says something wrong. Thally does the detective work.
Bring your existing docs to Thally.
Use Thally Cloud to migrate a public docs site, or run the CLI against a GitHub repository. Either path creates editable MDX and a Thally project you control.
$
Deploys to
- Vercel
- Netlify
- Cloudflare
- Docker
- Static export
Your migrated docs become an editable Thally project. Self-host the MIT-licensed engine, or let Thally Cloud build and publish it for you.
Start free. Add Cloud when you need it.
Start with one managed site, pull-request previews, and analytics for $0. Choose Thally Cloud for three managed sites, five team members, AI answers, Track, custom domains, and team roles.
Free
Publish one documentation site at no cost
MIT licensed · no card required
- 1 managed documentation site
- Pull-request previews
- Documentation analytics
- Unlimited pages and readers
- HTML, Markdown, JSON, and JSON-LD
- Optional MIT-licensed self-hosting
Thally Cloud
RecommendedAdd automation, scale, and team controls
$1,990 billed annually · save $398
- Everything in Free
- 3 managed documentation sites
- 5 team members included
- Unlimited connected product repositories
- 10,000 shared AI credits each month
- Unused credits roll over while subscribed
- AI answers and Thally Track
- Custom domains and team roles
Enterprise
Shape security and support around your needs
Tailored annual agreement
- Everything in Thally Cloud
- Custom site, member, and AI allowances
- Security review and invoicing
- Custom contract and support terms
- Assisted migration planning
- Priority rollout support
Need more capacity? Add members for $20 per month or $200 per year, managed sites for $39 per month or $390 per year, and 10,000-credit packs for $79 one time. Credit packs never auto-recharge.
Frequently asked questions
What Thally does, which surfaces it keeps current, how it decides what to change, and how it fits the stack you already have.
Ship the code. Everything else follows.
Keep your product knowledge accurate without chasing information across tickets, pull requests, and conversations. Thally drafts the updates, your team approves what ships.
