Capsolver MCP

capsolver-mcp is an MCP server in the web scraping category that exposes 5 tools to an agent, covering solve, read & search, detect. It runs locally over stdio via the published package.

People who work with solve and captchas and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in Python.

VERIFIED ACTIVE

LAST COMMIT 2026-09-18 · ★ 2 · #45 OF 97 MAINTAINED WEB SCRAPING · VERIFIED 2026-09-30

MIT · Python servers · how we verify → /methodology

01 · Install Capsolver MCP

before you install - you'll need

Set CAPSOLVER_API_KEY before connecting.

Claude Code

claude mcp add capsolver-ai-capsolver-mcp -- uvx capsolver-mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "capsolver-ai-capsolver-mcp": {
      "command": "uvx",
      "args": [
        "capsolver-mcp"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

pypi package capsolver-mcp - check the name against the project README before installing (PyPI has no namespace ownership)

registry namespace io.github.capsolver-ai is GitHub-verified and matches the repo owner

03 · What Capsolver MCP can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

What you can build

With this server connected, an agent can scan a page URL and list present captcha types, detect + solve + autofill all captchas on a page, check account balance and packages, and list all supported captcha types and handlers.

Capability map

Tools grouped from the project's README - what Capsolver MCP lets an agent do.

Solve

2 tools - e.g. Solve a captcha by type + site params (token mode); Detect + solve + autofill all captchas on a page

solve_captcha · solve_on_page

read & search

2 tools - e.g. Check account balance and packages; List all supported captcha types and handlers

get_balance · get_supported_captchas

Detect

1 tool - e.g. Scan a page URL and list present captcha types

detect_captchas

04 · Who maintains Capsolver MCP

capsolver-mcp is maintained by capsolver-ai. It's the only MCP server we track from this author; the repo dates to Jun 2026.

05 · Facts

repository: github.com/capsolver-ai/capsolver-mcp
website: https://capsolver.com/
category: web scraping - ranked #45 of 97 actively-maintained web scraping servers as of 2026-09-30.
registry: io.github.capsolver-ai/capsolver-mcp (active, first published 2026-09-17 · 2 versions)
packages: pypi:capsolver-mcp

06 · Capsolver MCP FAQ

Is Capsolver MCP still maintained?

Yes - as of 2026-09-30, its last commit was 2026-09-18. We re-verify nightly.

What can Capsolver MCP do?

How do I install Capsolver MCP?

Run `uvx capsolver-mcp`. The README documents one environment variable (CAPSOLVER_API_KEY) to set first. Set CAPSOLVER_API_KEY before connecting. You can also paste the ready-made client config above.

Does Capsolver MCP run locally?

Yes - it's a stdio server: it runs on your machine (via uvx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Capsolver MCP

Alternatives to Capsolver MCP

Maintained web scraping servers if Capsolver MCP isn't the fit.

Pairs well with

Servers that cover what Capsolver MCP doesn't - only shown when the pairing reason fits the companion.

More web scraping MCP servers · Amazon Scraper API · Jobseek · Fulltext Article Downloader · Crawleo MCP · Trentina

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