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KARKIUM / API · REST · WEBHOOKS / 2026

60+ ENDPOINTS.
ZERO ADD-ONS.
INCLUDED.

Documented REST API. Bearer authentication. Real-time webhooks. At other CRMs the API is a $150+/mo add-on. Here it's included from $150 because a CRM without an API is a jail for your data.

SEE CAPABILITIES↓ CREATE ACCOUNT→
KARKIUM / API · STREAM
~/karkium · api.log LIVE
60+
REST ENDPOINTS
∞
CALLS / MONTH
$0
EXTRA FOR API
24/7
WEBHOOKS LIVE
POST
01 / QUICKSTART

ONE CURL AND YOU'RE IN.

Bearer token, production URL, JSON. No proprietary SDK, no enterprise client library, no "contact sales for access".

If your backend can make HTTP requests, it already speaks Karkium. Everything else is just reading the docs.

  • Bearer auth via Laravel Sanctum
  • JSON request / JSON response
  • Generous rate limiting per token
  • Full OpenAPI spec available after signup
EXAMPLE / CREATE A LEAD
POST /leads 200 OK
// Create a lead via API
POST /api/v1/leads
Authorization: Bearer sk_live_•••••
 
{
  "name": "Maria Garcia",
  "email": "maria@techcorp.com",
  "phone": "+1 555 0123",
  // ... additional fields
}
 
// Response: 201 Created
{
  "id": 247,
  "status": "created"
}
 
// Full OpenAPI spec available after you sign up.
02 / CAPABILITIES

EVERY RESOURCE.
REACHABLE.

Every CRM resource is reachable via REST with Bearer auth. No artificial limits, no special plan.

  • Consistent pagination across every resource
  • Filters via query string — no payload change
  • Uniform JSON response — same shape every time
  • Generous rate limit per token
EXAMPLE / LIST LEADS
GET /leads 200 OK
// Typical CRM query
GET /api/v1/leads?limit=10&stage=•••
Authorization: Bearer sk_live_•••••
 
// Response: 200 OK
{
  "data": [
    { "id": 247, "name": "Maria G.", /* ... */ },
    { "id": 248, "name": "Juan R.", /* ... */ },
    // ... 8 more
  ],
  "meta": {
    "total": 1847,
    "page": 1,
    "per_page": 10
  }
}
 
// Same shape across all resources.
/ GROUP 01

LEADS

READList, search, filter, and fetch individual records
WRITECreate from web forms, Ads, Zapier, or your own source
UPDATEEnrich data, change status, assign the right rep
/ GROUP 02

DEALS · PIPELINE

READList by stage, value, owner, or date
WRITECreate deals, close, mark won or lost
STAGEMove between funnel stages straight from your backend
/ GROUP 03

WORK ORDERS

WRITECreate orders, assign techs, mark completed
READStatus, history, photos, and proof-of-delivery signature
/ GROUP 04

GPS · FIELD OPS

STREAMReceive real-time position updates from your techs
READLive map, historical trail, and status per unit
/ AND MANY MORE

TASKS · USERS · REPORTS · AUTOMATIONS

Full OpenAPI spec available after you sign up.

FULL OPENAPI SPEC · AVAILABLE AFTER SIGNUP

CREATE ACCOUNT · SEE SPEC→
WEBHOOKS
03 / WEBHOOKS

YOUR SYSTEM KNOWS
THE SAME SECOND.

No polling. No delays. No extra charge. Karkium sends a POST to the URL you set when something important happens.

  • HMAC-SHA256 signature per request
  • Retry with exponential backoff
  • Delivery confirmed in an immutable log
  • Payload schema available after signup
HITTING YOUR BACKEND
POST /webhook 200 OK
// Webhook hitting your backend
POST https://your-system.com/karkium
X-Karkium-Signature: hmac-sha256 •••••
 
{
  "event": "••••••••",
  "timestamp": "2026-04-24T14:30:00Z",
  "workspace_id": 1,
  "data": {
    "id": 247,
    // ... payload after signup
  }
}
 
// Your system responds in <50ms
// On failure: retry at 1s, 4s, 16s, 64s
THE COST OF NOT HAVING WEBHOOKS

Your team depends on opening the CRM to know if a lead arrived, a deal changed, or a technician finished a work order. That's minutes — sometimes hours — of delay.

EVERY MINUTE = 21% LESS

The probability of closing a hot lead drops 21% for every minute you take to respond. Webhooks close that gap to zero.

OTHER CRMs

  • Webhooks only on Enterprise plan ($150+/mo)
  • 100 events/day limit
  • Only 2 or 3 events available
  • Configuration via support ticket
  • No GPS, no field ops

KARKIUM · FROM $150

  • Webhooks included from day one
  • No event limit
  • Full coverage of sales and field ops flows
  • Paste the URL in Settings and you are done
  • Includes real-time GPS and field ops
WHAT FIRES A WEBHOOK

JSON payload, HMAC signature, retry with backoff. Exact event names and payload schema available in the docs after you sign up.

EV 01
When a new lead arrives
Your Slack gets the notification before you finish reading this. Your team replies in seconds, not hours.
EV 02
When a lead is updated
Changed temperature from cold to hot? Your system knows instantly and triggers an automatic sequence.
EV 03
When a deal changes stage
Deal moved to "negotiation"? Your ERP generates the quote automatically. Nobody touches anything.
EV 04
When a work order is completed
Technician finished the job? Your system sends the satisfaction survey to the client that same second.
EV 05
When a technician is assigned
Assigned a tech? They get push, WhatsApp, or email with the details. Automatic.
EV 06
Technician location update
Every position update from the field lands on your dashboard or your own backend. Real tracking, no theater.

Full spec available after you sign up.

04 / IMPORTANT DISTINCTION

THERE ARE TWO KINDS
OF API HERE.

This confuses people and it's worth clarifying. The API Karkium provides is not the same as the external APIs you can connect.

  • Karkium API — your data, 60+ endpoints, no limits
  • External APIs — Anthropic, Google, your SMTP
  • Karkium is the hub, not the bottleneck
  • You pay providers directly — zero commission on us
TYPICAL FLOW / 3 APIs CHAINED
HUB PATTERN LIVE
// 1. Your backend pulls from Karkium
GET /api/v1/leads 200 OK
 
// 2. Your backend calls Anthropic
POST api.anthropic.com/v1/messages
// → AI summary generated
 
// 3. Your backend sends via your SMTP
SMTP mail.your-domain.com
// → Email sent
 
// 4. Your backend updates Karkium
PATCH /api/v1/••• 204
 
// Karkium is the hub that connects your stack.
// No commission. No lock-in. No dependency.
INCLUDED · FROM $150/MONTH

KARKIUM API
(THIS PAGE)

These are the 60+ REST endpoints and webhooks you just saw above. They let YOU connect Karkium with your systems — Zapier, Make, your backend, whatever you need.

It's the API we give you. Already included, no extra charge. Available from the first day you pay your $150.

OPTIONAL · PAID DIRECTLY TO PROVIDER

EXTERNAL APIs
(ANTHROPIC, GOOGLE, SMTP)

The technology is already built. The AI Copilot, the field GPS, the email sending — all integrated into Karkium and working.

You paste your API key into Settings and it turns on. Anthropic for the Copilot, Google Maps for GPS, your SMTP for email. You create the account with them, you pay the provider directly. We don't take a commission. If you don't need them, don't connect them and the CRM works just the same.

The Karkium API isn't a privilege. It's a right. If you put your data into a CRM and can't pull it out easily, that CRM is holding you hostage. Here the API is included because your data is yours and should be able to go wherever you want.

ABOUT EXTERNAL API COSTS

WHAT YOU SPEND ON TOKENS IS A FRACTION
OF WHAT YOU'D SPEND ON AN EMPLOYEE.

External APIs (Anthropic, Google, SMTP) are billed per use. Actual consumption depends on you — and it is almost always pocket change compared to hiring someone to do the same work.

OPTION A — HIRE SOMEONE
$4,500 /mo
ENTRY-LEVEL US SDR / OPS
  • Works 8 h/day, 5 days/week
  • Takes vacation — 15 days/year minimum
  • Gets sick — flu, mental health days, PTO
  • Needs onboarding, management, coaching
  • If they quit, you start over
  • Plus payroll tax, benefits, 401(k) match
OPTION B — API TOKENS
$10-80 /mo*
TYPICAL KARKIUM CONSUMPTION
  • Works 24/7/365 — not a second off
  • Zero vacation — zero days off
  • Never sick — responds the same in Jan or Aug
  • No onboarding, no HR, no management
  • Pay per request — if you don't use it, you don't pay
  • Token revokable in 3 clicks

* Estimated consumption for a typical workspace of 5 users and ~500 leads/month. Real usage is billed directly to your Anthropic / Google account — we take no commission. If your business grows and usage goes up, it still stays far cheaper than hiring; if it drops, you pay less automatically.

START TODAY / 05

API, WEBHOOKS, EVERYTHING.
FROM $150/MONTH.

No "developer" tier, no "enterprise", no sales calls. You pay, you log in, you connect.

CREATE ACCOUNT→ SEE PRICING

From $150/month. All included. No excuses.

No demo. No sales reps. No contract. You pay, you log in, you get to work. If it does not fit, you cancel. Done.

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