Use Cases

Provider Integration

For Providers

If you’d like to be a model provider and sell inference on OpenRouter, fill out our form to get started.

To be eligible to provide inference on OpenRouter you must have the following:

1. List Models Endpoint

You must implement an endpoint that returns all models that should be served by OpenRouter. At this endpoint, please return a list of all available models on your platform. Below is an example of the response format:

1{
2  "data": [
3    {
4      // Required
5      "id": "anthropic/claude-sonnet-4",
6      "name": "Anthropic: Claude Sonnet 4",
7      "created": 1690502400,
8      "input_modalities": ["text", "image", "file"],
9      "output_modalities": ["text", "image", "file"],
10      "quantization": "fp8",
11      "context_length": 1000000,
12      "max_output_length": 128000,
13      "pricing": {
14        "prompt": "0.000008", // pricing per 1 token
15        "completion": "0.000024", // pricing per 1 token
16        "image": "0", // pricing per 1 image
17        "request": "0", // pricing per 1 request
18        "input_cache_reads": "0", // pricing per 1 token
19        "input_cache_writes": "0" // pricing per 1 token
20      },
21      "supported_sampling_parameters": ["temperature", "stop"],
22      "supported_features": [
23        "tools",
24        "json_mode",
25        "structured_outputs",
26        "web_search",
27        "reasoning"
28      ],
29      // Optional
30      "description": "Anthropic's flagship model...",
31      "openrouter": {
32        "slug": "anthropic/claude-sonnet-4"
33      },
34      "datacenters": [
35        {
36          "country_code": "US" // `Iso3166Alpha2Code`
37        }
38      ]
39    }
40  ]
41}

NOTE: pricing fields are in string format to avoid floating point precision issues, and must be in USD.

Valid quantization values are: int4, int8, fp4, fp6, fp8, fp16, bf16, fp32.

Valid sampling parameters are: temperature, top_p, top_k, repetition_penalty, frequency_penalty, presence_penalty, stop, seed.

Valid features are: tools, json_mode, structured_outputs, web_search, reasoning.

2. Auto Top Up or Invoicing

For OpenRouter to use the provider we must be able to pay for inference automatically. This can be done via auto top up or invoicing.