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Blume is free.Here's what your docs cost.

No plans, seats, or credits. Blume is open source and runs on your own host, so you pay only your host and, for AI features, your model provider. Here's how that compares with a hosted platform.

Price your docsCompare with Mintlify

Blume

$0a month

For every site, editor, and page, forever. No seat limits, usage caps, or credits to buy.

npx blume init

Want to pay anyway? Sponsor Blume on GitHub

Everything's included

  • Unlimited editors, pages, and traffic
  • Local search, or Algolia, Typesense, and more
  • OpenAPI, AsyncAPI, and GraphQL references
  • An in-page assistant on the model you choose
  • An MCP server for coding agents
  • llms.txt, Markdown mirrors, and a JSON API
  • Open Graph images for every page
  • Versioned docs with blume version
  • Every language, filled in by blume translate
  • Narration, read aloud as readers follow along
  • Blog and changelog pages with RSS
  • Analytics and cookie consent adapters
  • blume validate, audit, and eval for CI
  • blume eject to a standalone Astro app

Pricing that doesn't scale with you.Move the sliders. Blume's line stays at $0.

Start from

10
100K
1,000
25

Mintlify

Per month

  • Pro plan$450
    Unlimited editors, billed annually ($540 month to month)
  • AI credits$157.50
    26,250 used, 10,000 included; 15,000-credit add-on + 1,250 at $0.01
  • Hosting and searchIncluded
    MCP server included
Total$607.50

$7,290 a year

Blume

Per month

  • Blume$0
    MIT license, 10 editors in Git
  • Hosting on Cloudflare$0
    Workers free plan, up to 100,000 requests a day
  • Assistant$1.90
    1,000 answers on openai/gpt-6-luna, about $1.90 per 1,000
  • Narration$4.50
    25 pages on openai/tts-1-hd, or $0 with browser voices
  • Search and MCP server$0
    Built into your site
Total$6.40

$76.80 a year

Blume costs $7,213 less a year.

Estimates, not quotes. Mintlify is priced on Pro billed annually, with extra credits covered by the cheapest mix of one add-on and overage; Enterprise adds volume discounts it doesn't publish. Blume is priced on Cloudflare, where a server build's Worker answers page views too. An answer is priced on openai/gpt-6-luna and assumes about 14,000 input and 1,000 output tokens (a search and a page read before it replies), and a narrated page about 6,000 characters. A custom domain costs the same either way. Something out of date? Let us know

Feature by feature.What each one costs on Blume, and on Mintlify.

What each feature costs on Blume and on Mintlify
BlumeMintlify
PlansBlumeOne plan with everything, free under the MIT licenseMintlifyStarter: free for 5 editors, no AI features. Pro: $450 a month billed annually, or $540 month to month. Enterprise: on request
EditorsBlumeUnlimited: anyone with access to your repoMintlify5 on Starter; unlimited on Pro
Hosting and custom domainBlume$0 as static files on Cloudflare or GitHub Pages; otherwise your host's priceMintlifyIncluded on every plan
SearchBlume$0: a local index built into the site, or a hosted provider by adapterMintlifyIncluded
MCP serverBlume$0 on Cloudflare Workers' free plan, up to 100,000 requests a day; $5 a month for 10 millionMintlifyIncluded on every plan
AI assistantBlumeYour provider's token price for the model you choose: about $1.90 per 1,000 answers on openai/gpt-6-lunaMintlifyPro and up: 25 credits an answer ($0.25 at overage), so 10,000 monthly credits cover 400 answers; questions it can't answer are free
NarrationBlume$0 with browser voices; generated voices cost about $0.18 for a 1,000-word page on openai/tts-1-hd, and a rebuild pays only for changed sentencesMintlify50 credits ($0.50 at overage) each time it generates a page's audio
Docs maintenanceBlumeblume validate and blume audit run in CI for $0; blume translate and the update-docs skill run on your coding agent's planMintlifyAutomations: 250 credits ($2.50 at overage) for each run that changes your docs
More AI usageBlumeNothing to buy: your provider bills what you use, and rate limiting caps each readerMintlifyAdd-ons of 15,000 credits for $145, 40,000 for $370, or 90,000 for $800 a month; overage at $0.01 a credit, off by default
Private docsBlumeYour host's access protection, such as Cloudflare Access or Vercel Deployment ProtectionMintlifyReader authentication on every plan; SSO, SCIM, and RBAC on Enterprise
AnalyticsBlumeYour own provider by adapter; Cloudflare Web Analytics is freeMintlifyA built-in dashboard

Prices are from each vendor's own pages as of September 26, 2026: Mintlify pricing, Mintlify AI credits, Cloudflare Workers, Vercel, Netlify, GitHub Pages, Vercel AI Gateway models. Something out of date? Let us know

Your host sets the price.Static builds run free on most of them.

Read the deployment guide

Cloudflare

Free plan
Unlimited requests to static files, and 100,000 Worker requests a day for the assistant and MCP server
Paid plans
Workers Paid: $5 a month for 10 million requests, then $0.30 a million

Vercel

Free plan
Hobby, for personal and non-commercial projects
Paid plans
Pro: $20 a month per developer seat, with $20 of usage included

Netlify

Free plan
300 credits a month; a production deploy uses 15, and a GB of bandwidth 20
Paid plans
Personal: $9 a month for 1,000 credits. Pro: $20 a month for 3,000

GitHub Pages

Free plan
Public repositories, static builds only, with a soft limit of 100 GB of bandwidth a month
Paid plans
Private repositories, on GitHub Pro, Team, or Enterprise

When Mintlify might suit you better.Blume isn't the right fit for every team.

You want a web editor.
Mintlify's browser editor lets teammates publish without touching Git. Blume is Markdown and MDX in your repo.
You'd rather not run anything.
Mintlify hosts the site, the assistant, and the analytics dashboard. With Blume you deploy to your own host and bring your own model provider and analytics.
You need private docs or enterprise controls.
Mintlify supports reader authentication for private docs, and SSO, SCIM, and RBAC on Enterprise.

Questions, answered.About what Blume costs to run.

Is Blume really free?

Yes. Blume is open source under the MIT license, with no paid tier, seats, or usage limits, and no account to sign up for. You pay only for your host and, if you turn on AI features, your model provider.

Is there a hosted version of Blume?

No. blume build outputs a site you deploy to your own host: Cloudflare, Vercel, Netlify, GitHub Pages, any static host, or a Node server. Nothing phones home.

Do I need a server?

Not for most docs. A static build covers pages, search, llms.txt, Markdown mirrors, and Open Graph images. The assistant and the MCP server need a server build, which you get by naming your host's adapter in blume.config.ts.

What does the assistant cost to run?

Your model provider's token price. Each answer sends the most relevant pages of your docs to the model, which comes to about $1.90 per 1,000 answers on openai/gpt-6-luna. A larger model costs more per answer, and you choose which one. Rate limiting is on by default, at 30 questions per reader every 10 minutes, which stops one script from running up the bill. It limits each address, not your total spend, so add the assistant's bot check to stop a script that spreads its requests across many addresses.

What do I give up by not paying for a platform?

A browser editor, a hosted analytics dashboard, and a vendor to call. With Blume, pages live in your Git repo, analytics go to the provider you choose, and support is GitHub issues. Someone on your team owns the deploy and upgrades the blume package.

How can I support Blume?

Sponsor the project on GitHub, report issues, or send a pull request. Blume stays free either way.

Upgrade your docs with Blume.

Install today and ship a production-grade docs site in minutes. Free and open source, forever.

npx blume init
Read the quickstartView source