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Sendblue Browser MCP server

by sendblue-api·io.github.sendblue-api/sendblue-browser-mcp·v0.2.3·3 stars
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Drive a stealth-patched Chromium daemon: navigate, screenshot, eval JS, attach over CDP.

B74/100grade B
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Safety scan
B74/100

full report

Adoption
New

3 stars33 downloads/wk

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If you have run it, two minutes of your experience saves the next person an afternoon.

Sendblue Browser tools (13, 1 write)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • close_session

    Close the session and delete its on-disk profile.

  • create_sessionwrite action

    Create a new browser session. persistent=true follows the daemon default and backs to an on-disk profile that survives restarts but does NOT expose a CDP url; set persistent=false for CDP attach. The response includes autoNavScreenshots so clients know whether navigate writes background evidence.

  • get_cdp_url

    Return the CDP websocket URL and targetId for a non-persistent session so a Playwright/Puppeteer client can connectOverCDP() and select the session page. Persistent sessions return 409.

  • get_console

    Read recent console messages from the session's page (ring buffer).

  • get_cookies

    Read cookies from the session's context. Optional comma-separated URL filter.

  • get_session

    Inspect a session — current page URL/title, console message count, CDP url, and whether automatic nav screenshots are enabled.

  • health

    Check if the sendblue-browser-use daemon is reachable. Returns service metadata, active session count, and navScreenshotPolicy. No auth used (the /health endpoint is public).

  • list_sessions

    List every active browser session on the daemon.

  • navigate

    Navigate the session's page to a URL. http(s) only; file:// and chrome:// are rejected. waitUntil defaults to 'domcontentloaded'. Only sessions with autoNavScreenshots=true write background evidence; call screenshot after headed navigation when you need evidence.

  • purge_session

    Clear cookies and permissions context-wide, then current open page/origin localStorage, sessionStorage, IndexedDB, ServiceWorkers, CacheStorage, and console buffer — but keep the session id. Does NOT delete the on-disk profile or enumerate every historical origin.

  • screenshot

    Take a PNG screenshot of the session's page. Returns an MCP image block. Optional CSS selector to capture a specific element; selector waits up to 5s. Use after headed navigation because headed sessions usually skip automatic nav screenshots to avoid flicker.

  • script

    Evaluate a JavaScript expression in the session's page context. EXPRESSION form only — wrap statements in an IIFE. 422 if the eval throws. Body cap 200 kB. timeoutMs defaults to 30000; pass 0 to disable.

  • set_cookies

    Inject cookies. Each cookie needs name+value plus EITHER url OR (domain AND path).

Public scan report

scanner v0.1.9 · 2026-09-27 · same rubric, same numbers if you re-run it

no findings
  • Code scan2 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitystatic API keys via environment variables6/15
  • Maintenancelast push 98 days ago8/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year9/10
Overall 74/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Sendblue Browser compares

Against every graded Scraping and browsing MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
74/100
higher than 40% of 866 Scraping and browsing servers
Tools
13
the typical Scraping and browsing server has 6
Tools that change things
8%
typical: 0%. Fewer write tools means less an agent can break
GitHub stars
3
more than 70% of 583 Scraping and browsing servers
Downloads a week
33
more than 15% of 309 Scraping and browsing servers with a package

What its tools let an agent do: 9 read · 1 create · 2 change · 1 delete

Install Sendblue Browser in Claude Code, Cursor or VS Code

Runs npx -y sendblue-browser-mcp on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add sendblue-browser-mcp -- npx -y sendblue-browser-mcp
Add to Cursor

What the publisher says

From the Sendblue Browser repository's README, as published. We do not edit it. Read it on GitHub

sendblue-browser-use

A standalone debug browser for agents. Stealth-patched Chromium behind a tiny HTTP API, with persistent named sessions, an easy purge endpoint, configurable auto screenshots, and CDP attach so any client (Playwright, Puppeteer, undetected-chromedriver, custom scripts) can drive it.

It runs as its own process — not tied to any one Claude / Cursor / Codex session — so multiple agents can share it concurrently, debug each other's flows, and reuse a logged-in session without paying the auth tax every run.

Why this exists

Quick start (local)

Prereqs: Bun >=1.3 and Node.js >=20 on your PATH.

git clone https://github.com/sendblue-api/sendblue-browser-use.git
cd sendblue-browser-use
bun install
bun --bun x patchright install chromium

cp .env.example .env
# generate and set the required token
TOKEN="$(openssl rand -hex 32)"
sed -i.bak "s/^BROWSER_USE_API_KEY=.*/BROWSER_USE_API_KEY=$TOKEN/" .env
rm .env.bak

bun run dev

Then in another terminal:

source .env
TOKEN="Authorization: Bearer $BROWSER_USE_API_KEY"

# 1. create a persistent session (log in here once, reuse it forever)
curl -s -X POST http://127.0.0.1:8787/sessions \
  -H "$TOKEN" -H "Content-Type: application/json" \
  -d '{"name":"qa","persistent":true}'

# 2. navigate
curl -s -X POST http://127.0.0.1:8787/sessions/qa/navigate \
  -H "$TOKEN" -H "Content-Type: application/json" \
  -d '{"url":"https://trybloom.so/"}'

# 3. screenshot
curl -s http://127.0.0.1:8787/sessions/qa/screenshot?fullPage=true \
  -H "$TOKEN" -o /tmp/qa.png

# 4. wipe state without losing the session
curl -s -X POST http://127.0.0.1:8787/sessions/qa/purge -H "$TOKEN"

Quick start (Docker)

echo "BROWSER_USE_API_KEY=$(openssl rand -hex 32)" > .env
docker compose up -d

Same API, exposed on 127.0.0.1:8787. Data persists in ./data/. CDP stays loopback-only inside the container by default; to attach CDP from the host, uncomment CDP_BIND and the 127.0.0.1:9222:9222 port mapping in docker-compose.yml on a trusted machine only.

Install into your agent

The repo ships three packaging layers so any agent can drive the daemon with one line of config.

MCP (Claude Desktop, Codex, Cursor, Antigravity, Cline, Windsurf)

The cross-agent path. Wraps the HTTP API as MCP tools (health, createsession, navigate, screenshot, script, getcdpurl, purgesession, etc).

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Sendblue Browser: common questions

Is Sendblue Browser MCP server safe?
Mostly: it is graded B (74/100). Read the Sendblue Browser safety report
How do I install Sendblue Browser?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Sendblue Browser need an API key?
Yes. The registry entry asks for BROWSER_USE_API_KEY.
Is Sendblue Browser maintained?
The last commit was 136 days ago (2026-06-21). The latest release is v0.2.3.
What can I use instead of Sendblue Browser?
Servers from other publishers that do the same job: Native DevTools MCP server, FableCut MCP server and Browser Gateway MCP server.
How does Sendblue Browser compare with other Scraping and browsing MCP servers?
safety score 74/100 (higher than 40% of 866 Scraping and browsing servers); tools 13 (the typical Scraping and browsing server has 6); tools that change things 8% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

Alternatives to Sendblue Browser

Same job from other publishers: the closest match first, then the best rated.

  • Native DevTools
    MCP server for desktop, browser (CDP), and Android automation. Screenshot, OCR, click, type.
    A
  • FableCut
    Zero-dependency browser video editor AI agents drive via a JSON timeline over MCP; ffmpeg export.
    A
  • Browser Gateway
    AI browser tools with Chrome CDP. Navigate, screenshot, interact. Multi-provider failover.
    B
  • Public Browser
    Chrome over CDP for AI agents. Blind benchmark vs agent-browser: -33% tokens, -33% cost, -32% time
    A
  • Kitewright
    Lightweight browser automation for AI agents: navigate, screenshot, extract, PDF. One small binary.
    A