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
• Dataset terms: The AI Pricing Guru dataset is provided for informational use. You may use it for personal, editorial, research, educational, and internal business purposes with appropriate attribution to AI Pricing Guru. Commercial redistribution, resale, republishing at scale, inclusion in a competing public dataset/API, or use as the primary data source for a commercial pricing-comparison product requires prior written permission. For permission requests, email info@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": "2026-06-02T00:06:58.111Z",
  "modelCount": 103,
  "providerCount": 11,
  "disclaimer": "Prices are collected from public provider sources and refreshed by AI Pricing Guru's monitoring pipeline. Providers can change prices, tiers, taxes, regions, or billing rules without notice; always verify directly with the provider before making purchasing or budgeting decisions.",
  "models": [
    {
      "id": "claude-haiku-4.5",
      "name": "Claude Haiku 4.5",
      "family": "Claude 4.5",
      "provider": "anthropic",
      "pricing": {
        "inputPerM": 1,
        "cachedInputPerM": 0.1,
        "outputPerM": 5
      },
      "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: *
• Dataset terms: same as the current pricing dataset; permission requests go to info@aipricing.guru

{
  "generatedAt": lastUpdatedISO,
  "snapshotCount": 1,
  "snapshots": [
    {
      "date": lastUpdatedISO,
      "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.