BrewPage API -- Open Source Public Layer

> This repository is the open-source public layer of BrewPage --

> a proprietary HTML/KV/JSON/file hosting platform.

> The backend, frontend, and infrastructure remain closed-source.

Docs: https://kochetkov-ma.github.io/brewpage-openapi/ | API Reference: https://kochetkov-ma.github.io/brewpage-openapi/api-reference/

What is BrewPage

BrewPage is a free instant hosting service for HTML pages, Markdown documents,

multi-file sites, AI artifacts, JSON documents, key-value stores, and binary files.

No signup or API key required. Every published resource gets a short HTTPS URL

(`brewpage.app/{namespace}/{id}`) within seconds.

Key characteristics:

• HTML and Markdown pages -- publish raw HTML or Markdown rendered to styled HTML, up to 5 MB, with instant short URLs.
• Multi-file sites -- upload a ZIP archive or individual files (up to 20 MB / 100 files) and get a fully served static site.
• Key-value store -- namespace-scoped KV pairs, up to 1,000 keys per namespace, mutable in place via the owner token.
• JSON documents -- store and retrieve arbitrary JSON, up to 1 MB per document, 10,000 documents per collection.
• File hosting -- upload any safe file type (images, PDFs, video, audio, archives, code), up to 5 MB (video 20 MB), with inline preview.
• Public namespace -- omitting `?ns=` publishes to the shared `public` namespace, which is listed on the homepage gallery and indexed by search engines. Pass a custom namespace or `X-Password` header to keep content private.
• Owner tokens -- every publish response includes an `ownerToken`. Use it to update content in place (stable URL), delete it, or list your own resources. No accounts, no sessions.
• TTL -- content expires automatically. Default 15 days, maximum 30 days, configurable per request via `ttl_days`.
• No auth required for reads. Writes are open (rate-limited to 60 uploads/hr per IP). All requests require a `User-Agent` header.

Both `brewpage.app` and `brewdata.app` serve the same API.

Why this matters for LLMs and agents

AI agents frequently need to share structured outputs -- reports, artifacts, generated HTML, intermediate JSON state -- with users or downstream systems via a stable URL. BrewPage provides that as a zero-setup REST API: one `POST` call, one URL back. No OAuth, no S3 bucket configuration, no infrastructure. The MCP server (`brewpage-mcp`) wraps the API into six typed tools that any MCP-compatible agent (Claude, Codex, Gemini, Cursor) can call directly.

Quick Start

Publish an HTML page and get a shareable link:

curl -X POST https://brewpage.app/api/html \
  -H "Content-Type: application/json" \
  -H "User-Agent: MyAgent/1.0" \
  -d '{"content": "Hello, world!", "ttlDays": 15}'

Response:

{
  "id": "aBcDeFgHiJ",
  "namespace": "public",
  "link": "https://brewpage.app/public/aBcDeFgHiJ",
  "ownerLink": "https://brewpage.app/api/html/public/aBcDeFgHiJ",
  "ownerToken": "your-secret-token",
  "expiresAt": "2026-06-04T02:00:00Z",
  "sizeBytes": 22
}

Open `link` in any browser -- no further steps required.

Use Cases for LLMs and Agents

API Features

Every resource gets a short URL (`brewpage.app/{ns}/{id}`), optional password protection, configurable TTL, and tagging. Public content appears in a browsable gallery with full-text search.

API Examples

Publish Markdown:

curl -X POST "https://brewpage.app/api/html?format=markdown" \
  -H "Content-Type: application/json" \
  -H "User-Agent: MyAgent/1.0" \
  -d '{"content": "# My Document\n\nHello **world**"}'

Store a JSON document:

curl -X POST https://brewpage.app/api/json \
  -H "Content-Type: application/json" \
  -H "User-Agent: MyAgent/1.0" \
  -d '{"name": "config", "version": 1}'

Upload a site (ZIP archive):

curl -X POST "https://brewpage.app/api/sites" \
  -H "User-Agent: MyAgent/1.0" \
  -F "archive=@site.zip;type=application/zip"

Update content in place (stable URL):

curl -X PUT "https://brewpage.app/api/html/public/aBcDeFgHiJ" \
  -H "Content-Type: application/json" \
  -H "User-Agent: MyAgent/1.0" \
  -H "X-Owner-Token: your-secret-token" \
  -d '{"content": "Updated content"}'

Get platform stats:

curl https://brewpage.app/api/stats

API Reference

• Interactive docs -- kochetkov-ma.github.io/brewpage-openapi
• API Reference (Scalar) -- kochetkov-ma.github.io/brewpage-openapi/api-reference
• OpenAPI spec (YAML) -- `openapi/openapi.yaml`
• OpenAPI spec (JSON) -- `openapi/openapi.json`

Endpoints

MCP Server

The `brewpage-mcp` package provides a Model Context Protocol server with 6 tools for AI-assisted content publishing. See `mcp-server/README.md` for full documentation.

Claude Desktop

Add to `~/Library/Application Support/Claude/claude_desktop_config.json`:

{
  "mcpServers": {
    "brewpage": {
      "command": "npx",
      "args": ["-y", "brewpage-mcp"]
    }
  }
}

Claude Code

Add to `~/.claude/settings.json`:

{
  "mcpServers": {
    "brewpage": {
      "command": "npx",
      "args": ["-y", "brewpage-mcp"]
    }
  }
}

Resources

BrewPage is described using schema.org/SoftwareApplication structured data on the platform homepage.

What's Open Here

What's Proprietary

Project Structure

brewpage-openapi/
  openapi/
    openapi.json          # OpenAPI 3.1 spec (JSON)
    openapi.yaml          # OpenAPI 3.1 spec (YAML)
  docs-site/              # Astro documentation site
    src/
      pages/              # Documentation pages
      components/         # Scalar API reference
  mcp-server/             # MCP server (brewpage-mcp)
    src/
      index.ts            # Server entry point
  .github/
    workflows/            # CI/CD (docs deploy, releases)
  README.md
  RELEASE-NOTES.md
  LICENSE

License

Apache 2.0