Katara

The open
market
for
AI inference.

One API connects applications and agents to independent compute providers competing to serve AI inference.

OpenAI compatiblex402 nativeUSDC settlement

How it works

One API.
A market behind it.

Katara connects AI demand with available compute.

Independent providers run approved model bundles, publish their own prices, and compete for requests.

Katara routes the work, verifies the provider, and settles payment. The customer gets one API. Underneath it is a market.

Learn how the market works
ApplicationsWeb apps, services, tools
AI agentsAutonomous software
KataraRouting · Pricing · Verification
Provider 1$0.03 / 1M tokens
Provider 2$0.04 / 1M tokens
Provider 3$0.05 / 1M tokens
Verified result
USDC settlement
Illustrative provider prices

Market pricing

Providers set their own prices and compete for requests.

x402 payments

Software can pay for inference directly over HTTP.

Verified models

Versioned bundles define exactly what providers serve.

Built for the agent economy

Built for software
that spends money.

Agents already know how to call APIs. Katara gives them a way to pay for inference while they work.

Give software access to funds and spending rules. It can buy inference as it needs it.

Give your agent a budget,
not another billing account.

Explore machine payments
HTTP + x402Payment flow
  1. 01
    Request inferencePOST /v1/chat/completions
    HTTP
  2. 02
    Receive payment terms402 Payment Required
    402
  3. 03
    Authorize paymentPAYMENT-SIGNATURE
    x402
  4. 04
    Run inference. Return a result.200 OK
Payment becomes part of the request.

For developers

One API.
Real choice.

Use the OpenAI client you already have. Point it at Katara and access supported models through the same request format.

Katara handles provider selection, routing, validation, metering, and settlement. You get the response.

  • OpenAI compatible
  • Pay per request
  • Provider competition
  • Managed fallback for supported models
Start Building
POST /v1/chat/completionsExample
modelkatara/llama-3.1-8b-instruct@1
Response
usage
prompt_tokens
18
completion_tokens
52
total_tokens
70
katara
cost_usdc
0.000018
provider
0xfFe5…38DC
fallback
false

Illustrative response from the API documentation.

For compute providers

Provide compute.

Run supported models. Set your price.
Serve requests. Earn USDC.

Katara handles demand, routing, model definitions, validation, receipts, and settlement.

  • Choose approved models
  • Set your own prices
  • Get paid in USDC

No Katara token. No staking. No mining game.
Just compute for payment.

Become a Provider
Provider overviewExample
Model

Llama 3.1 8B

Bundle version @1
Your price / 1M tokens
Input
$0.03
Output
$0.05
Status

Available

Earnings

USDC

Example offer. Providers set their own prices.

AI compute should have a market price.

OpenAI compatiblex402 nativeUSDC settlement