# Thally

> Thally is the product knowledge synchronization pipeline. It understands what changed, finds the customer-facing knowledge affected, and prepares evidence-backed updates for human review. Documentation is the first surface, and the publishing engine is open source under the MIT license.

## What Thally does

- Product change intelligence: Track evaluates merged changes from connected product repositories and maps them to affected customer-facing documentation.
- Understanding before generation: Thally gathers evidence and treats no documentation change as a valid result instead of generating content by default.
- Human review: important communication stays reviewable. Thally prepares pull requests, and the customer's team decides what lands.
- Product-specific knowledge: accepted reviews, corrections, and releases strengthen Thally's understanding of how each customer's product changes affect its documentation.
- 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 Thally to draft fixes for low-scoring pages.
- Docs agent: turn an instruction, a diff, or a product PR into a reviewable docs pull request. Comment "@thally document this" on any GitHub issue or PR to trigger it. The agent never merges; a human always does.
- Docs updates from product changes: after a Thally site is live, choose the product repos Thally should watch. Thally can turn relevant merged changes into reviewable documentation PRs and report when no docs change is needed.
- 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.
- Thally Cloud workspace: manage sites, deployments, analytics, AI answers, updates drafted by Thally, and Owner/Editor/Viewer workspace access from app.thally.io.
- Migration: use Thally Cloud with a public docs site, or run the CLI against a supported repository. Thally converts supported pages to MDX and rebuilds the navigation for review before publishing.
- Deployment: Vercel, Netlify, Cloudflare, Docker, or static export. The docs are a deployable Next.js project.

## Pages

- [Home](/): product overview, features, pricing, FAQ
- [Thally Track](/features/track): product-change impact analysis, evidence, findings, and reviewable drafts
- [Automation](/features/automation): merged product changes become reviewable documentation pull requests
- [Content Graph](/features/content-graph): write once in MDX and publish HTML, JSON, llms.txt, and Markdown
- [Agent Layer](/features/agent-layer): llms.txt, MCP server, and grounded answers with cited sources
- [Migration & Hosting](/features/migration-hosting): migrate from GitBook, Mintlify, Docusaurus, or Markdown and let Thally host
- [Cloud Dashboard](/features/cloud-dashboard): sites, drafts, analytics, team, and AI context in one workspace
- [Pricing](/pricing): Free (1 managed site per workspace plus MIT self-hosting), Cloud (3 managed sites and 10,000 monthly AI credits), Enterprise (custom allowances and contract terms)
- [Blog](/blog): comparisons, guides, and product deep dives (RSS at /rss.xml)
- [About](/about): the problem, position, product principles, and long-term mission
- [FAQ](/faq): common questions on migration, automation, agents, self-hosting
- [Contact](/contact): sales and support
- [Create a docs site](https://app.thally.io/register): create one managed documentation site for 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

- [Introducing Thally](/blog/introducing-thally): why product knowledge falls out of sync and how Thally prepares evidence-backed updates
- [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. Includes 1 managed documentation site per workspace, pull-request previews, documentation analytics, unlimited pages and readers, all output formats, an MCP server, hybrid search, and a docs agent with your own API key. The MIT-licensed engine can also be self-hosted for free, including commercial use. Track, hosted AI answers, custom domains, and team access are not included.
- Thally Cloud: $199/workspace/month or the equivalent of $166/workspace/month with $1,990 billed annually. Both include a 14-day trial, 3 managed sites, unlimited connected product repositories, 10,000 shared AI credits each month with rollover, and 5 team members in any role. Extra members are $20/month or $200/year, extra managed sites are $39/month or $390/year, and a one-time $79 pack adds 10,000 AI credits without automatic top-ups. Includes Thally AI answers and chat, Track, agent-readiness CI checks, custom domains, and team roles.
- Enterprise: Custom annual pricing. Site, member, and AI allowances, security review, invoicing, migration, support, and contract requirements are scoped with each customer.
- 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.