Nyckel
Nyckel provides API endpoints that turn inputs into structured decisions, while handling model selection, training, hosting, monitoring, and ongoing improvem…
What Nyckel is
Nyckel provides API endpoints that turn inputs into structured decisions, while handling model selection, training, hosting, monitoring, and ongoing improvement. It supports classification, Box Detect, and Search functions, with image classification, object detection, and OCR listed among its capabilities. A function endpoint is live as soon as it is created and can return predictions before labeled examples are added. Predictions include calibrated confidence scores from 0.0 to 1.0. Reviewed predictions can become training samples; Nyckel retrains and promotes a model only if it scores better than the current one. Developers can use a REST API with bearer-token authentication and endpoints for functions, labels, samples, annotations, and invocation. A Zapier integration offers classify, import, and train actions and is available on every plan. Nyckel says custom models can run in its infrastructure in AWS, GCP, or Azure regions, or in a customer's cloud. The Free plan includes 100 invokes per month, up to 200 samples, and up to five functions.
Good
- Free plan includes up to five functions.
- Endpoints can predict before labeled examples are added.
- Predictions include calibrated confidence scores.
- Zapier actions are available on every plan.
- Custom models can deploy in a customer's cloud.
Watch out
- Free plan includes only 100 invokes per month.
- Free plan is limited to 200 samples.
- Starter costs $149 a month.
- Extra invokes and samples have listed charges.
Who it suits
Nyckel suits developers or teams that need API-based classification, object detection, search, or OCR functions. Its free plan may suit users starting with modest invocation and sample limits.
Verdict
Nyckel combines model operations with live API endpoints and a feedback-based retraining process. Review plan limits and additional usage charges against the volume and number of functions you need.
Plans and prices
From Nyckel's own pricing page, checked 30 Sep 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | 100 invokes/month · up to 200 samples · up to 5 functions · $0.005 per invoke after included usage · per month |
| Starter | $149 a month | 15,000 invokes/month · up to 30k samples · up to 20 functions · $0.005 per invoke · $0.0025 per additional sample · per month |
| Business | $599 a month | 300,000 invokes/month · up to 600k samples · up to 100 functions · $0.001 per invoke · $0.0005 per additional sample · per month |
| Enterprise | Priced on request | Dedicated infrastructure and regional deployments · enterprise security and compliance · large-scale retention and auditing · advanced integrations and tooling · dedicated ML support and consulting · Talk to us |
The facts
Each one read from Nyckel's own pages, with the date it was checked.
What it does
- API access
- The platform exposes a REST API with bearer-token authentication and endpoints for functions, labels, samples, annotations, and invocation.checked 30 Sep 2026
- Confidence scores
- Function predictions include a calibrated confidence score ranging from 0.0 to 1.0.checked 30 Sep 2026
- Deployment
- Nyckel says custom models can be deployed in its secure infrastructure in any AWS, GCP, or Azure region or in the customer's cloud.checked 30 Sep 2026
- Feedback loop
- Reviewed predictions become training samples and Nyckel retrains and promotes a new model only when it scores better than the current one.checked 30 Sep 2026
- Function types
- Nyckel supports classification, Box Detect, and Search functions.checked 30 Sep 2026
- Immediate endpoint
- A function endpoint is live when created and can return predictions before labeled examples are added.checked 30 Sep 2026
- Integrations
- Nyckel offers a Zapier integration with classify, import, and train actions, and the integration is available to users on any plan.checked 30 Sep 2026
- Object detection limits
- Nyckel's bounding-box product lists up to 1,000 classes, 1M images, and 2–4 hours per training.checked 30 Sep 2026
- Security compliance
- Nyckel's terms state that it will maintain annually updated reports or certifications for penetration testing and SOC2 Type I.checked 30 Sep 2026
- Support
- The Enterprise plan includes dedicated ML support and consulting.checked 30 Sep 2026
- Training-data privacy
- Nyckel states that customer training data is used exclusively to train models for that customer and is not used to train models for another party.checked 30 Sep 2026
- What it does
- Nyckel provides live API endpoints that turn inputs into structured decisions while handling model selection, training, hosting, monitoring, and continuous improvement.checked 30 Sep 2026
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