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Use this explanation when you want the mental model before you build against the Gateway. Phaseo gives you one API for models, providers, routing, pricing, and async AI workflows. That means you can:
  • call multiple providers through one consistent API
  • keep request and response handling simpler
  • track usage, latency, and price in one place
  • change models or routing strategy without rebuilding your app
You can get started on :free models with zero deposited credits. Paid models require available wallet balance.

Why use a gateway

AI integrations become harder as soon as you need more than one provider, model, endpoint family, or deployment environment. Phaseo gives your app one stable integration layer. You can ship the product flow first, then adjust models, providers, routing, and pricing strategy without rewriting every caller.

Core concepts

Unified endpoints

Use one API shape across text, image, moderation, audio, video, and provider-compatible routes.

Routing controls

Choose how requests move across providers for availability, cost, latency, region, and policy.

Usage and cost tracking

Track request volume, token usage, latency, and price so production behavior is visible.

BYOK (Bring Your Own Key)

Connect provider keys when you want provider billing and limits while keeping the same Gateway interface.

  1. Sign up for a Phaseo account.
  2. Generate an API key in your dashboard.
  3. Make your first request with the /v1/responses endpoint.
  4. Choose your production path for SDKs, routing, observability, and rollout.

Quickstart

Make your first successful API call with a free model.

Next steps

Authentication

Learn how to authenticate securely using your personal or team API key.

API Reference

Browse the complete API documentation with endpoints, parameters, and response schemas.

Best Practices

Guidance on how to get the most out of the Phaseo Gateway.

Examples

Copy ready-to-run snippets for Next.js, Node.js streaming, Python, and curl.

Need a build-focused walkthrough? Continue with Integrating with the Gateway, then explore Integrations or Rate limits as you scale.
Last modified on July 9, 2026