Documented REST API. Bearer authentication. Inbound webhooks for lead ingestion. 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.
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.
Every CRM resource is reachable via REST with Bearer auth. No artificial limits, no special plan.
Full OpenAPI spec available after you sign up.
FULL OPENAPI SPEC · AVAILABLE AFTER SIGNUP
CREATE ACCOUNT · SEE SPEC→No copy-paste. No CSV imports. Your form, Zapier, Make or your backend POSTs to your workspace's inbound webhook and the lead lands in your pipeline instantly. Everything after that you query via the API, and your team sees it in the CRM in real time.
Your team depends on copying leads by hand from the form, the inbox or the spreadsheet into the CRM. That's minutes, sometimes hours, of delay before the first contact.
EVERY MINUTE = 21% LESSThe probability of closing a hot lead drops 21% for every minute you take to respond. The inbound webhook puts the lead in your pipeline the same second and alerts your team instantly.
Today your team sees it in the CRM in real time and your backend queries everything via the REST API. Signed outbound webhooks pushing these events to your URL are on the roadmap.
Signed outbound delivery (HMAC, retry with backoff) for these events: on the roadmap, not available yet. API spec after you sign up.
This confuses people and it's worth clarifying. The API Karkium provides is not the same as the external APIs you can connect.
These are the 60+ REST endpoints and the lead-ingestion webhook 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.
The technology is already built. The 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.
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.
* 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.
No "developer" tier, no "enterprise", no sales calls. You pay, you log in, you connect.
No credit card · Cancel anytime
No demo. No sales reps. No contract. You pay, you log in, you get to work. If it does not fit, you cancel. Done.