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Tech Detect – reCAPTCHA Technology Detection
x402
Tech Detect – reCAPTCHA Technology Detection is a paid API for AI agents from stack.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-13).
Detects whether a given domain uses reCAPTCHA and returns confidence scores and evidence, paid per call in USDC via x402.
Price / call$0.004
Success—
StatusUnknown
How this service works
Domain in, technology stack out. Confidence and evidence for every hit. Pay per call in USDC over x402. No signup, no API key.
Output
Returns detected technology entries for reCAPTCHA on the target domain, each with a name, category, version, confidence score, and supporting evidence. If the domain does not appear to use reCAPTCHA, an empty or low-confidence result is returned.
Example use cases
Competitive bot-protection audit
“I'm building a competitor analysis report — can you scan acme-shop.com to see if they're running reCAPTCHA, and tell me how confident you are and what evidence backs it up?”
Change detection for security stack monitoring
“We tracked github.com last month and saw reCAPTCHA v2 in the security category. Can you re-scan it now with that previous observation and tell me if anything has changed?”
Lead enrichment for sales targeting
“We're selling CAPTCHA alternatives and need to know which prospects already use reCAPTCHA. Can you detect whether prospectsite.io is running reCAPTCHA right now?”
Technical details
Endpoint
POSThttps://stack.halowerk.com/stack/articles/recaptcha?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need pay-as-you-go, no-signup technology detection specifically scoped to reCAPTCHA on a target domain, especially when you want confidence scores and evidence rather than a simple boolean. It is ideal for agents doing one-off or low-volume checks without committing to a subscription, or when integrating micropayments via x402 is already part of the workflow.
Side effects
- Invalid or unreachable URL returns an error or empty result
- Payment failure via x402 prevents the call from completing
- Domain blocks scanning bots, leading to low-confidence or missed detections
- Stale or incorrect 'previous' observation data may skew change-detection logic
- Rate limiting or infrastructure downtime on halowerk.com returns a 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | |
| previous | object |
Tags
x402
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