> ## Documentation Index
> Fetch the complete documentation index at: https://docs.runbridge.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Model API quickstarts: build with RunBridge AI models

> Choose a RunBridge AI quickstart for text requests, GPT Image, or Google Nano Banana with curl, Python, and Node.js examples.

Use these quickstarts when you already know the model family or task you want to build. Each page shows a minimal request, a Python example, a Node.js example, the request flow, common parameters, and links back to the API reference.

For account setup, API keys, and the first generic call, start with [Create an API key](/overview/quick-start). For reusable platform guidance, use [Core API guides](/guides/use-runbridge-with-openai-sdk).

## Text APIs

<CardGroup cols={3}>
  <Card title="OpenAI-compatible API" icon="message" href="/quickstarts/text/openai-compatible-api">
    Use the OpenAI API-compatible Chat Completions route with a RunBridge AI model ID.
  </Card>

  <Card title="Claude API" icon="message" href="/quickstarts/text/claude-api">
    Send Anthropic-compatible Messages requests to Claude models through RunBridge AI.
  </Card>

  <Card title="Gemini API" icon="sparkles" href="/quickstarts/text/gemini-api">
    Start with Gemini native `generateContent`, or use OpenAI-compatible Chat Completions for existing SDK apps.
  </Card>
</CardGroup>

## Image APIs

<CardGroup cols={2}>
  <Card title="GPT Image API" icon="image" href="/quickstarts/image/gpt-image-api">
    Generate an image, decode `b64_json`, and save the result.
  </Card>

  <Card title="Google Nano Banana API" icon="sparkles" href="/quickstarts/image/gemini-image-api">
    Generate Nano Banana images with Gemini `generateContent` and save the result.
  </Card>
</CardGroup>

For Grok image requests, see [Generate images with Grok](/api/image/grok/image-generation) and [Edit images with Grok](/api/image/grok/image-editing).

## Supporting guides

<CardGroup cols={2}>
  <Card title="Models" icon="list" href="/overview/models">
    Find available model IDs and route each model to the correct API page.
  </Card>

  <Card title="Use OpenAI SDKs" icon="code" href="/guides/use-runbridge-with-openai-sdk">
    Configure OpenAI-compatible SDK clients with the RunBridge AI base URL.
  </Card>

  <Card title="Estimate cost" icon="tag" href="/guides/how-to-estimate-cost-before-calling-a-model">
    Estimate the cost of text and image requests before you send them.
  </Card>
</CardGroup>


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