# Thally

> Thally is the AI-native documentation platform for AI agents and humans. One MDX source serves structured JSON, JSON-LD, and Markdown to AI agents and polished HTML to human readers from the same URL. A built-in docs agent turns product changes, GitHub mentions, and readiness findings into documentation pull requests for human review. The engine is open source under the MIT license, and your content stays in Git.

## What Thally does

- AI-native output: every docs page supports content negotiation (?format=json, ?format=md, Accept headers). Agents get structured data; humans get the same pre-rendered UI.
- Remote MCP server: every deployed docs site exposes /api/mcp. Attach it to any agent and the docs become native tools (search_docs, read_page, list_pages, agent_readiness). No key, no account.
- Agent-readiness score: a deterministic 0-100 grade per build covering structured data, metadata, discovery files, machine readability, and OpenAPI coverage. Gate CI on a threshold, then ask the agent to draft fixes for low-scoring pages.
- Docs agent: turn an instruction, a diff, or a product PR into a reviewed docs pull request. Comment "@thally document this" on any GitHub issue or PR to trigger it. The agent never merges; a human always does.
- Thally Track: register product repos and merged PRs there become reviewed documentation PRs automatically. A docs-preview label drafts docs before the feature merges.
- Provenance and drift: machine-legible lastUpdated / lastVerified dates, plus deterministic drift detection against the source code each page documents.
- Authoring: MDX with 25+ components, OpenAPI-generated API reference with an interactive Try-It console, hybrid full-text + vector search, retrieval-grounded AI chat with inline citations.
- Multi-language: one command translates the whole site; locale URLs, hreflang, and graceful fallbacks.
- Admin dashboard: first-party analytics, live theming with no rebuild, Owner/Editor/Viewer roles from a git-committed roster, and a queue of agent-drafted docs PRs.
- Migration: one command moves docs from Mintlify, Docusaurus, GitBook, Nextra, VitePress, Starlight, or plain Markdown. Components, navigation, redirects, and OpenAPI specs are converted automatically.
- Deployment: Vercel, Netlify, Cloudflare, Docker, or static export. The docs are a Next.js repo you own.

## Pages

- [Home](/): product overview, features, pricing, FAQ
- [Pricing](/pricing): Free (self-host, MIT), Cloud (workspace platform fee), Enterprise (SSO, SLA)
- [Blog](/blog): comparisons, guides, and product deep dives (RSS at /rss.xml)
- [About](/about): team and mission
- [FAQ](/faq): common questions on migration, automation, agents, self-hosting
- [Contact](/contact): sales and support
- [Sign up](https://app.thally.io/register): start free
- [Documentation](https://docs.thally.io): quickstarts, guides, and product reference
- [Thally Editorial Team](/authors/thally-team): author identity and review responsibilities
- [Editorial policy](/editorial-policy): sourcing, review, AI-assistance, and corrections policy
- [Agent-readiness methodology](/agent-readiness-methodology): deterministic checks and limitations
- [Expanded agent corpus](/llms-full.txt): first-party articles and canonical pricing in one text file
- [Methodology manifest](/agent-readiness.json): machine-readable conformance categories and evidence

## Blog highlights

- [Thally vs Mintlify](/blog/thally-vs-mintlify): ownership, self-hosting, and machine readability compared
- [Thally vs GitBook](/blog/thally-vs-gitbook): docs-as-code versus a hosted wiki
- [Thally vs Docusaurus](/blog/thally-vs-docusaurus): two open-source paths to developer docs
- [What is AI-native documentation?](/blog/what-is-ai-native-documentation): a definition, with checks
- [Making docs agent-readable](/blog/agent-ready-docs-llms-txt-mcp): llms.txt, MCP, and content negotiation, step by step

## Pricing summary

- Free: $0. Self-host forever. MIT licensed, commercial use OK. Unlimited pages and readers, all output formats, MCP server, hybrid search, docs agent with your own API key.
- Thally Cloud: $60/workspace/month on a monthly subscription, or $50/workspace/month on an annual subscription. Both are billed monthly and include a 14-day trial plus 3 team members in any role. Each additional active member or pending invitation adds $20 to the monthly bill. Includes Thally AI answers and chat, Thally Track with one-click GitHub App, agent-readiness CI checks, admin dashboard, analytics, and team roles.
- Enterprise: Custom annual pricing. Adds SAML and SCIM SSO, audit-log access, custom terms, migration support, and priority support.
- Machine-readable pricing: [/pricing.md](/pricing.md)

## Trust and reuse

- Canonical HTML pages remain the source of truth. Alternate formats should preserve the same substantive claims.
- Editorial content is maintained by the Thally Editorial Team and follows the published editorial policy.
- The agent-readiness score measures technical conformance. It does not guarantee ranking or citation.
- Quote or summarize with a link to the canonical page and preserve the page's stated publication and update dates.