Developers

Everything in the CRM is an API.

REST, webhooks, MCP and five automation platforms — on every plan, with no developer tier to unlock. Build on the same records Karrie works on.

Read the API docsInteractive reference
First request

One header. One base URL. JSON in, JSON out.

Generate a key under Settings → API → API Keys, send it as a Bearer token, and every endpoint answers with the same envelope: success, data, meta.

  • Base URLhttps://app.automatenexuscrm.com/functions/v1/api
  • AuthAuthorization: Bearer <api key>
  • Formatapplication/json, HTTPS only
  • Limits100 req/min per key, burst 1,000
GET /contacts
curl "https://app.automatenexuscrm.com/functions/v1/api/contacts?limit=25" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json"
Response
{
  "success": true,
  "data": [ { "id": "…", "email": "jane@example.com", "score": 87 } ],
  "meta": { "request_id": "req_abc123", "page": 1, "limit": 25 }
}
Surfaces

Six ways in. No developer tier.

REST API

Contacts, companies, deals, activities, tasks, invoices and more over JSON. Bearer-token auth, cursor pagination, a consistent response envelope, and 100 requests a minute per key with burst to 1,000.

API overview & auth

Webhooks

Subscribe to contact, deal, pipeline, payment and message events. Every delivery is signed with an HMAC-SHA256 X-AutomateNexus-Signature header and retried on failure, with a per-endpoint delivery log.

Webhook guide

Automation platforms

Native connectors for Zapier, Make, n8n, Activepieces and Pabbly Connect — trigger on any CRM change or push records in without writing code.

Integrations directory

MCP connectors

Connect Model Context Protocol servers so Karrie and your agents can call your own tools and data sources as part of their work.

How Karrie uses tools

Bring your own AI key

Run the AI layer on your own OpenAI, Anthropic, Google Gemini, Cohere, DeepSeek or Zhipu GLM account. Keys are encrypted at rest and never leave your workspace.

Included on every plan

Sandbox environments

Test automations, API changes and imports in an isolated sandbox before they touch production data.

Sandbox docs
Reference

Start with the guides.

Yes. API access and webhooks are part of the platform on Starter, Growth, Business and Agency. Create keys under Settings → API → API Keys; each key is scoped to your organisation and can be revoked independently.

100 requests per minute per API key, with a burst allowance up to 1,000. Every response carries X-RateLimit-Limit, X-RateLimit-Remaining and X-RateLimit-Reset headers, and a 429 includes Retry-After.

Each webhook endpoint has its own signing secret. Deliveries include an X-AutomateNexus-Signature header containing an HMAC-SHA256 of the payload body, so you can verify authenticity before processing. Failed deliveries are retried automatically.

The API is plain JSON over HTTPS and works with any HTTP client. Zapier, Make, n8n, Activepieces and Pabbly connectors cover most no-code needs, and the interactive reference in the app lets you try every endpoint with your own key.

Build on the CRM, not around it.

API keys, webhooks and sandboxes are in every trial from minute one.

Start free trialTalk to sales