Nutrient DWS AI Gateway API

What it does

Nutrient DWS AI Gateway API is a managed API layer that sits between your application and AI models. You send text, document page images, or questions through an OpenAI-compatible endpoint, and it returns generated text, streamed responses, or a probability for a document question. A decision API takes a page image or text plus a question and returns the probability that the answer is yes, so you can set your own threshold for automatic processing.

Developers typically call it with the OpenAI SDK by changing the base URL and using a Nutrient API key. It supports the OpenAI Responses and Chat Completions APIs, so existing integrations can be kept, and a single account handles access, usage, and billing across models. Its distinct part is the document decision endpoint for structured yes/no questions over invoices and similar pages.

It suits development teams already building document workflows who want one account and endpoint for several models. Access requires a Nutrient account and an API key enabled for AI Gateway. Usage is billed per token at each model's rate on top of a monthly allowance, with pay-as-you-go available subject to account billing controls. Exact plan prices and allowances were not confirmed in the provider’s documentation.

What it can do

• Generate text through OpenAI Responses API compatibility
• Keep existing OpenAI Chat Completions integrations
• Stream model responses
• Answer document questions with the nutrient-document-decision model and receive a probability
• Set thresholds on decision probabilities for automatic processing
• Manage API access, usage, and billing through one Nutrient account

Before you choose

• Billing is per token at each model's rate, so usage beyond the monthly allowance depends on pay-as-you-go settings and spending controls.
• The decision API returns probabilities, not final answers; you must choose thresholds suited to your workflow.
• Exact plan prices and allowances are not confirmed in the provider’s documentation; check the pricing page before budgeting.

Listed under

• Coding

Get started

Create an account and get an API key enabled for AI Gateway; the quickstart guide explains setup.

1. Create a Nutrient account and obtain an API key enabled for AI Gateway.
2. Install the OpenAI SDK (npm install openai) and set the base URL to https://api.nutrient.io/ai/v1.
3. Store the key in an environment variable and make a Responses API or decision API request, following the quickstart guide.

Each plan includes a monthly usage allowance in USD, billed per token at each model's rate. Pay-as-you-go can be enabled for usage beyond the allowance, subject to account billing and spending controls. A free plan is listed; its trial duration was not stated.

Source: nutrient.io/api/ai-gateway-api, checked 30 Oct 2026. Prices can change; check before you buy.

Sources for this overview

Product pages, documentation, and pricing checked 30 Oct 2026. Each source supports part of the overview; availability and prices can change.

• AI Gateway: OpenAI-compatible API for documents | Nutrient ↗www.nutrient.io

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Last checked 30 Oct 2026. Every field keeps its source and date; unknown means we couldn’t confirm it.