Developers

A real API today. An MCP server next.

Everything in Entropy1 runs through the same API our own apps use. Build on it with scoped keys and webhooks now; connect AI agents through MCP soon.

Live

REST API

Scoped API keys per business and integration
Signed requests (HMAC) so you know a call is genuine
Published OpenAPI docs
Webhooks for orders, bookings, memberships and access

Early access

MCP server

Runs alongside the API, with the same scopes and audit trail
Lets agents like Claude and ChatGPT browse, book, order and manage memberships
For customer-facing assistants and staff copilots
Per-tool permissions you control

Side by side

Same action, two ways in.

Examples are illustrative. Endpoint names and fields may differ from the published API.

REST · request

POST /v1/bookings
Host: api.entropy1.com
Authorization: Bearer e1_live_…
X-Entropy1-Timestamp: 1791331200
X-Entropy1-Signature: v1=5f2c…
Content-Type: application/json

{
  "resource_id": "room_podcast_a",
  "start": "2026-10-14T10:00:00-07:00",
  "end": "2026-10-14T12:00:00-07:00",
  "customer_id": "cus_8hQ2"
}

REST · response

{
  "id": "bk_31Lx",
  "status": "confirmed",
  "total": { "amount": 9000, "currency": "usd" },
  "access": {
    "door_code": "482913",
    "valid_from": "2026-10-14T09:55:00-07:00",
    "valid_until": "2026-10-14T12:05:00-07:00"
  }
}

MCP · tool call Early access

{
  "method": "tools/call",
  "params": {
    "name": "create_booking",
    "arguments": {
      "resource": "Podcast Studio A",
      "date": "2026-10-14",
      "start_time": "10:00",
      "hours": 2
    }
  }
}

MCP · tools (illustrative)

`list_locations`	List a business’s locations, hours and contact details
`get_menu`	Browse products, categories, add-ons and current offers
`check_availability`	Find open slots for a room, studio or desk
`create_booking`	Hold and confirm a booking, returning access details
`place_order`	Build a cart and place an order for pickup
`get_membership`	Look up a customer’s plan, status and renewal date
`update_membership`	Pause, resume or change a membership plan
`send_receipt`	Re-send a receipt by SMS or email

Webhooks

Know the moment something happens.

Subscribe to events and Entropy1 posts them to your endpoint, signed with your webhook secret so you can verify every delivery.

order.createdorder.readybooking.confirmedbooking.cancelledmembership.renewedaccess.grantedaccess.revoked

Event names are illustrative.

Signed requests

Verify every call.

Node.js · verify a signature (illustrative)

import crypto from 'node:crypto';

function verify(rawBody, timestamp, signature, secret) {
  const expected = crypto
    .createHmac('sha256', secret)
    .update(timestamp + '.' + rawBody)
    .digest('hex');
  return crypto.timingSafeEqual(
    Buffer.from(expected), Buffer.from(signature)
  );
}

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Join the waitlist and tick “API / MCP”. We’ll reach out with docs and early access.

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