[ API ]

One API for
every challenge

Change the type field, not your integration. Every challenge we support shares one request shape and one response shape.

Request

POST https://api.captchano.com/v1/solve
Authorization: Bearer cn-YOUR_API_KEY
Content-Type: application/json

{
  "type":    "recaptcha_v2",
  "sitekey": "6LcABC...",
  "url":     "https://example.com/login",

  "proxy":     "http://user:pass@host:port",
  "userAgent": "Mozilla/5.0 ...",
  "minScore":  0.7,
  "action":    "login"
}

Response

200 OK

{
  "id":       "slv_01JABCXYZ",
  "status":   "ready",
  "type":     "recaptcha_v2",
  "solution": { "token": "03AGdBq25S..." },
  "userAgent": "Mozilla/5.0 ...",
  "cost":      "0.00285",
  "solveTime": 4.8
}

Supported types

Image / text / audio — $1.50 per 1,000, median 1.9s.
reCAPTCHA v2 — $2.85 per 1,000, median 4.8s.
reCAPTCHA v3 — $3.00 per 1,000, median 5.1s. Scales with requested score.
hCaptcha — $3.00 per 1,000, median 7s.
Cloudflare Turnstile — $4.35 per 1,000, median 6.2s.
DataDome — $4.35 per 1,000, median 9.4s. Proxy required.

Fields that decide acceptance

proxy and userAgent are optional on token-based challenges and required on session-graded ones. Passing them is the single biggest lever on your success rate: a token minted behind a different IP than the one that submits it is the most common reason a syntactically valid token is rejected.

minScore and action apply to score-based reCAPTCHA v3. Send the same action the page reports, or the score is discounted at verification.

Errors

Errors return a stable machine-readable code alongside a human message: invalid_sitekey, unsupported_type, proxy_required, proxy_unreachable, score_not_met, insufficient_balance, rate_limited. Anything that did not produce a usable solution is not billed.

Rate limits and concurrency

There is no per-account concurrency ceiling — scale parallel solves with your own queue. Request-rate limits are reported on every response via X-RateLimit-Remaining.

SDKs

Python, Node, Go, Java, PHP and C#, plus a CLI and an MCP server. Integration examples for Selenium, Puppeteer and Playwright.

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