2Captcha MCP vs Call4me
A side-by-side look at the 2Captcha MCP and Call4me MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose 2Captcha MCP for communication work as a local process; choose Call4me for communication over a hosted endpoint. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose 2Captcha MCP when
- You need dedicated capabilities in the Communication domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
TWOCAPTCHA_API_KEY. - You want tools like
twocaptcha_solve_normal, twocaptcha_solve_text, twocaptcha_solve_audio.
Choose Call4me when
- You need dedicated capabilities in the Communication domain.
- You prefer a remote HTTP/SSE transport.
- Its auth model fits you: OAuth 2.0.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Communication | Communication |
| Quality signal | 53/100 · Good | 79/100 · Great |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Remote HTTP/SSE |
| Auth | API key required | OAuth 2.0 |
| Pricing | BYOK (pay the provider) | Paid service |
| Required env vars | TWOCAPTCHA_API_KEY | None listed |
| Verified owner |
Tools & capabilities
2Captcha MCP tools 28
twocaptcha_solve_normalfile_path` xor `file_base64twocaptcha_solve_texttexttwocaptcha_solve_audiofile (xor), `audio_langtwocaptcha_solve_gridfile (xor)twocaptcha_solve_canvasfile (xor)twocaptcha_solve_coordinatesfile (xor)twocaptcha_solve_rotatefiles: listtwocaptcha_solve_vkimagefiles`, `stepstwocaptcha_solve_recaptchasitekey`, `url`, `version`, `enterprisetwocaptcha_solve_hcaptchasitekey`, `urltwocaptcha_solve_turnstilesitekey`, `url` (+ `data`/`pagedata` for CF Challenge)twocaptcha_solve_funcaptchasitekey`, `url- +16 more on the listing page
Call4me tools
No tool names declared yet. Check the project README from the listing page.
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
2Captcha MCP
{
"mcpServers": {
"2captcha-mcp": {
"command": "uvx",
"args": [
"twocaptcha-mcp"
],
"env": {
"TWOCAPTCHA_API_KEY": "YOUR_TWOCAPTCHA_API_KEY_HERE"
}
}
}
}
Call4me
{
"mcpServers": {
"call4me": {
"url": "https://call4.me/mcp"
}
}
}
Frequently asked questions
2Captcha MCP is categorized under Communication and uses a local stdio subprocess. Call4me belongs to Communication and uses a remote HTTP/SSE transport. Pick 2Captcha MCP for communication work and Call4me for communication.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
2Captcha MCP is bring-your-own-key: usage is billed by the API provider you supply a key for. Auth: api key required. Call4me is listed as a paid service. Auth: oauth 2.0. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add 2captcha-mcp and call4me as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, 2Captcha MCP has a quality signal of 53/100 (Good) with 4 views, 0 installs and 3 GitHub stars. Call4me has 79/100 (Great) with 6 views, 1 installs and 12 GitHub stars.