Public Pricing API — Free JSON Endpoint

Endpoint at a glance

• URL: https://www.aipricing.guru/api/pricing.json
• Method: GET (no authentication required)
• Response: application/json, typical size ~25 KB
• Update cadence: daily (04:00 UTC), scraped from each provider's official pricing page
• CORS: Access-Control-Allow-Origin: * — call it from any browser
• Cache: Cache-Control: public, max-age=3600
• OpenAPI spec: /openapi.json
• License: CC-BY 4.0 — attribution requested: "Data: aipricing.guru"

What does the response look like?

A single JSON object with metadata and a models array. Every model has a stable id, a provider slug, and a pricing block with inputPerM, outputPerM, and optional cachedInputPerM — all in USD per 1 million tokens.

{
  "lastUpdated": "2026-04-17T11:51:11.321Z",
  "modelCount": 55,
  "providerCount": 10,
  "models": [
    {
      "id": "gpt-5.4",
      "name": "GPT-5.4",
      "family": "GPT-5.4",
      "provider": "openai",
      "pricing": {
        "inputPerM": 2.5,
        "cachedInputPerM": 0.25,
        "outputPerM": 15
      },
      "status": "active"
    },
    ...
  ]
}

How do I call the API from JavaScript?

const res = await fetch('https://www.aipricing.guru/api/pricing.json');
const data = await res.json();

// Find the cheapest flagship input price
const cheapest = data.models
  .filter((m) => m.status === 'active')
  .sort((a, b) => a.pricing.inputPerM - b.pricing.inputPerM)[0];

console.log(`Cheapest: ${cheapest.name} at $${cheapest.pricing.inputPerM}/1M`);

How do I call the API from Python?

import requests

data = requests.get('https://www.aipricing.guru/api/pricing.json').json()

openai_models = [m for m in data['models'] if m['provider'] == 'openai']
for m in openai_models:
    p = m['pricing']
    print(f"{m['name']}: ${p['inputPerM']}/M input, ${p['outputPerM']}/M output")

How do I call the API with curl?

curl -s https://www.aipricing.guru/api/pricing.json | jq '.models[] | select(.provider=="anthropic")'

Price History API

A second endpoint exposes daily pricing snapshots, so you can track how prices change over time. The response includes every snapshot we've taken, each containing a full model roster with that day's prices.

• URL: https://www.aipricing.guru/api/price-history.json
• Method: GET (no authentication required)
• Response: application/json
• CORS: Access-Control-Allow-Origin: *
• License: CC-BY 4.0

{
  "generatedAt": "2026-04-16T...",
  "snapshotCount": 1,
  "snapshots": [
    {
      "date": "2026-04-16",
      "models": [
        {
          "id": "gpt-5.4",
          "name": "GPT-5.4",
          "provider": "openai",
          "inputPerM": 2.5,
          "outputPerM": 15,
          "cachedInputPerM": 0.25
        },
        ...
      ]
    }
  ]
}

Use this to build price-tracking dashboards, alert on changes, or analyze pricing trends. See the changelog page for a human-readable view.