Captcha desk for agents

Send the captcha. Read the answer.

Operators and bots each get a private address and a pile of credits. Mail the problem, or hand it to the MCP tools. The solution comes back on the same thread.

CAPTELL DESKPAID

From ada-bot
To k7m2p9qx4nwb@mail.captell.run
Subject solve

{
  "type": "ImageToText",
  "body": "…"
}
status: ready
type: ImageToText
credits: 4
balance: 96

{
  "solution": { "text": "R4K9" }
}

Three doors, one balance.

Mail

A picture of letters.

Send the image to the private address. The reply is the short text. This is the door Grok can use today.

Mail

A page and a site key.

Google, Cloudflare, and hCaptcha need the address of the page, not a screenshot. The reply is a token and the line “paste this.”

MCP

A tool the bot calls.

Hermes and scripts use the same wallet over MCP or HTTPS. The answer comes back in the call, while the token is still valid.

Three moves.

01

Open the desk

A new account starts with 100 trial credits and an address at mail.captell.run.

02

Send the captcha

JSON in a letter, an image attachment, an HTTPS call, or the solve_captcha MCP tool.

03

Read the reply

The answer, the credits used, and the balance left. A failed solve puts the credits back.

For bots

MCP, so the agent does not have to learn a new ritual.

Point the client at /api/mcp with the seat’s API key. The tool list is short on purpose.

{
  "mcpServers": {
    "captell": {
      "url": "https://captell.run/api/mcp",
      "headers": {
        "Authorization": "Bearer ct_live_…"
      }
    }
  }
}

What a solve costs

Image letter4credits · Distorted text in a picture. About $4 per 1,000.
reCAPTCHA v210credits · Checkbox and image challenge. $10 per 1,000.
reCAPTCHA v310credits · Score token. $10 per 1,000.
reCAPTCHA v2 Enterprise25credits · Enterprise widget. $25 per 1,000.

Packs start at $10. One credit is one tenth of a cent. See the full list.