2Captcha MCP vs BillionVerify
A side-by-side look at the 2Captcha MCP and BillionVerify MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
B
BillionVerifyCommunication · Local subprocess (stdio)Email verification for AI agents: verify single or bulk emails, check credits and history.52GoodAuth: not declaredVerdict: choose 2Captcha MCP for communication work as a local process; choose BillionVerify for communication as a local process. 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.
BChoose BillionVerify when
- You need dedicated capabilities in the Communication domain.
- You prefer a local stdio subprocess transport.
- You have the keys it needs:
BILLIONVERIFY_API_KEY. - You want tools like
verify_single_email, verify_batch_emails, get_account_balance.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | B BillionVerify | |
|---|---|---|
| Category | Communication | Communication |
| Quality signal | 53/100 · Good | 52/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | API key required | Not declared |
| Pricing | BYOK (pay the provider) | BYOK (pay the provider) |
| Required env vars | TWOCAPTCHA_API_KEY | BILLIONVERIFY_API_KEY |
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
BillionVerify tools 11
verify_single_emailVerify a single email address in real-timeverify_batch_emailsVerify up to 50 emails in one requestget_account_balanceCheck your credit balanceget_verification_historyList verification history (paginated)
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"
}
}
}
}
BillionVerify
{
"mcpServers": {
"billionverify": {
"command": "npx",
"args": [
"-y",
"billionverify-mcp"
],
"env": {
"BILLIONVERIFY_API_KEY": "YOUR_BILLIONVERIFY_API_KEY_HERE"
}
}
}
}
Frequently asked questions
2Captcha MCP is categorized under Communication and uses a local stdio subprocess. BillionVerify belongs to Communication and uses a local stdio subprocess. Pick 2Captcha MCP for communication work and BillionVerify 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. BillionVerify is bring-your-own-key: usage is billed by the API provider you supply a key for. 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 billionverify 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. BillionVerify has 52/100 (Good) with 0 views, 0 installs and 0 GitHub stars.