CAPTCHA API
An image CAPTCHA-solving API that returns a calibrated confidence score, so callers know when to trust the answer. One Go binary and Postgres in front of any OpenAI-compatible vision model.
Created · Updated
gopostgresqlvision-modelsapiprometheus
Image in, text out, plus a confidence band you can act on. Several vision models read the same image independently, and agreement between them sets the confidence band. The bands are measured, not guessed:
| Band | Share of traffic | Measured accuracy |
|---|---|---|
high |
49% | 100% |
medium |
37% | 90% |
low |
14% | 38% |
It also has the parts a commercial API needs: accounts, API keys, plans, quotas, metering, async batching, and Prometheus metrics. All of it is one Go binary and a Postgres database.