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Nyckel
What Nyckel is
Nyckel provides API endpoints that turn inputs into structured decisions, while handling model selection, training, hosting, monitoring, and ongoing improvement. Its function types include classification, Box Detect, and Search, 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 when 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 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. Paid plans start at $149/mo, while Enterprise pricing is available by discussion.
Who it suits
It suits developers and teams that want API-based classification, object detection, or search functions without managing the full model lifecycle themselves. The free plan offers a small starting allowance; Enterprise includes dedicated ML support and consulting.
What it does well
- Endpoints can return predictions before labeled examples exist.
- Predictions include confidence scores from 0.0 to 1.0.
- Reviewed predictions can feed model training.
- Zapier integration is available on every plan.
- Custom models can run in a customer's cloud.
What to know first
- Free plan includes 100 invokes per month.
- Starter plan costs $149/mo.
- Extra invokes on the Free plan cost $0.005 each.
Limits
The Free plan includes 100 invokes per month, up to 200 samples, and up to five functions; additional invokes cost $0.005 each. Starter costs $149 a month and includes 15,000 invokes, up to 30,000 samples, and up to 20 functions.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Free | per month · 100 invokes/month · up to 200 samples · up to 5 functions · $0.005 per invoke after included usage | Free |
| Starter | per month · 15,000 invokes/month · up to 30k samples · up to 20 functions · $0.005 per invoke · $0.0025 per additional sample | $149 a month |
| Business | per month · 300,000 invokes/month · up to 600k samples · up to 100 functions · $0.001 per invoke · $0.0005 per additional sample | $599 a month |
| Enterprise | Talk to us · Dedicated infrastructure and regional deployments · enterprise security and compliance · large-scale retention and auditing · advanced integrations and tooling · dedicated ML support and consulting | On request |
As nyckel.com lists them, read 30 Sept 2026. The maker's own page has the final word.
Getting started
- Open the Nyckel website.
- Choose the Free plan or a paid plan.
- Create a function for classification, Box Detect, or Search.
- Use the live function endpoint to get predictions.
- Connect through the REST API or use the Zapier integration.
Verdict
Nyckel combines live prediction endpoints with feedback-based model improvement and API access. The free plan has limited included usage, and paid plans start at $149/mo.
Questions
Is there a free plan?
Yes. The Free plan costs nothing and includes 100 invokes per month, up to 200 samples, and up to five functions.
How much do paid plans cost?
Starter is $149 a month and Business is $599 a month. Enterprise pricing is available by speaking with Nyckel.
Which function types does Nyckel support?
It supports classification, Box Detect, and Search functions. Listed capabilities also include image classification, object detection, and OCR.
What platforms are available?
Nyckel lists API and web platforms.
Does Nyckel integrate with Zapier?
Yes. Its Zapier integration includes classify, import, and train actions and is available on every plan.
Where can custom models be deployed?
Nyckel says custom models can run in its secure infrastructure in AWS, GCP, or Azure regions, or in a customer’s cloud.
Facts from Nyckel's own pages
- API access
- The platform exposes a REST API with bearer-token authentication and endpoints for functions, labels, samples, annotations, and invocation. · nyckel.com, 30 Sept 2026
- Confidence scores
- Function predictions include a calibrated confidence score ranging from 0.0 to 1.0. · nyckel.com, 30 Sept 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. · nyckel.com, 30 Sept 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. · nyckel.com, 30 Sept 2026
- Function types
- Nyckel supports classification, Box Detect, and Search functions. · nyckel.com, 30 Sept 2026
- Immediate endpoint
- A function endpoint is live when created and can return predictions before labeled examples are added. · nyckel.com, 30 Sept 2026
- Integrations
- Nyckel offers a Zapier integration with classify, import, and train actions, and the integration is available to users on any plan. · nyckel.com, 30 Sept 2026
- Object detection limits
- Nyckel's bounding-box product lists up to 1,000 classes, 1M images, and 2–4 hours per training. · nyckel.com, 30 Sept 2026
- Security compliance
- Nyckel's terms state that it will maintain annually updated reports or certifications for penetration testing and SOC2 Type I. · nyckel.com, 30 Sept 2026
- Support
- The Enterprise plan includes dedicated ML support and consulting. · nyckel.com, 30 Sept 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. · nyckel.com, 30 Sept 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. · nyckel.com, 30 Sept 2026
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