AI Model Pricing & Change Data API

Data API

Programmatic access to stored price records with source links where available, published API changes, and webhooks.

Public API health checkHTTP

$ curl https://api.modelpricelab.com/health

# Returns service status and timestamp

Quick start

Fetch stored model price records with a single request.

curl -H "Authorization: Bearer mpl_your_api_key" \
  "https://api.modelpricelab.com/v1/prices"

Endpoint reference

API Free can call only GET /v1/prices. /v1/changes and all webhook routes require a current Developer/Scale API or Team entitlement; new self-serve paid API purchases are paused.

Endpoint	Method	Auth	Description	Limit
/v1/prices	GET	API key	Returns stored model price records across vendors and platforms.	API Free or current paid entitlement
/v1/changes	GET	API key	Returns published price and API changes; incidents are excluded by default.	Current paid entitlement required
/v1/webhooks	GET	API key	List configured webhook endpoints.	Current paid entitlement required
/v1/webhooks	POST	API key	Subscribe an HTTPS URL to change.alert events.	Current paid entitlement required
/v1/webhooks/{id}	DELETE	API key	Remove a webhook subscription.	Current paid entitlement required

Webhook signature verification

Current Developer/Scale API or Team entitlements can receive deliveries. Verify the exact raw body with HMAC SHA-256 from x-mpl-signature (sha256=…).

import { createHmac, timingSafeEqual } from 'node:crypto';

const signature = req.headers['x-mpl-signature'];
// Capture the exact raw UTF-8 request bytes before JSON parsing.
const rawBody = req.rawBody;
const expected = 'sha256=' + createHmac('sha256', WEBHOOK_SECRET)
  .update(rawBody)
  .digest('hex');

const valid = typeof signature === 'string'
  && signature.length === expected.length
  && timingSafeEqual(Buffer.from(signature), Buffer.from(expected));

if (!valid) {
  res.status(401).send('Invalid signature');
  return;
}

Rate limits & quotas

Each API key has a daily request quota based on its plan. Requests exceeding the quota return HTTP 429.

API Free

Requests: 100/day

Data delay: Up to 24h

Existing paid accounts

Requests: Current entitlement

Data delay: Current entitlement

New self-serve API plan purchases are paused. Endpoints return stored records; record-update timestamps are not independent source verification.

Create your API key in Dashboard

Get API key

Endpoint reference

API Free can call only GET /v1/prices. /v1/changes and all webhook routes require a current Developer/Scale API or Team entitlement; new self-serve paid API purchases are paused.

Endpoint	Method	Auth	Description	Limit
/v1/prices	GET	API key	Returns stored model price records across vendors and platforms.	API Free or current paid entitlement
/v1/changes	GET	API key	Returns published price and API changes; incidents are excluded by default.	Current paid entitlement required
/v1/webhooks	GET	API key	List configured webhook endpoints.	Current paid entitlement required
/v1/webhooks	POST	API key	Subscribe an HTTPS URL to change.alert events.	Current paid entitlement required
/v1/webhooks/{id}	DELETE	API key	Remove a webhook subscription.	Current paid entitlement required

import { createHmac, timingSafeEqual } from 'node:crypto'; const signature = req.headers['x-mpl-signature']; // Capture the exact raw UTF-8 request bytes before JSON parsing. const rawBody = req.rawBody; const expected = 'sha256=' + createHmac('sha256', WEBHOOK_SECRET) .update(rawBody) .digest('hex'); const valid = typeof signature === 'string' && signature.length === expected.length && timingSafeEqual(Buffer.from(signature), Buffer.from(expected)); if (!valid) { res.status(401).send('Invalid signature'); return; }