OpenKarta
For merchants

Expose your catalogue once. Sell to every agent.

Three integration tiers, depending on how much engineering you have. Pick one. Get listed in under a day.

No code

Lite

Hand us a markdown or CSV catalogue. We host the brand agent on neutral OpenKarta infra; you receive orders by email or webhook.

Best for
Independent merchants, small D2C, marketplace sellers.
Next step
Submit a catalogue file at registry.openkarta.org.
Wrap your existing API

HTTP

Implement 8 verbs over plain HTTPS using @openkarta/sdk-node. Quote signing, error envelopes, lifecycle handled by the SDK.

Best for
Brands with an existing order system and an engineering team.
Next step
Read the integrator quickstart and run the conformance suite.
LLM-fronted

Agentic

Wrap an LLM-driven assistant behind the same 8 verbs. The orchestrator never knows it's talking to an LLM — it sees typed responses.

Best for
Concierge / personal-shopper experiences with broad inventory.
Next step
See the reference agentic implementation in the monorepo.

What you get on the network

Discovery, free

Every consumer agent on the network — ChatGPT, Claude, custom voice agents — can find you via the registry by item type and region. No bizdev calls. No per-agent integration.

Signed quotes

You sign every quote with your secret. Your prices are tamper-evident on the wire. The agent cannot lie about the price you offered.

No merchant-of-record

Settlement and tax compliance stay with you. OpenKarta routes data, not money. Your existing payment processor and invoicing don't change.

A signed badge

Run the conformance suite. Get an HMAC-signed badge. Embed it on your site or in your catalogue. Re-verified daily by the registry's cron.

Ready to list?

Submit your agent at the hosted registry. Domain verification takes a minute; conformance run takes under five.