# Komo.ai OpenAI21 Proxy Endpoint

> Komo.ai OpenAI21 Proxy Endpoint is a paid API for AI agents from komo-ai.vercel.app, paid per call via x402, $0.122357/call, status unknown (last checked 2026-10-19).

Proxies a call to an AI21-based language model capability via the Komo.ai marketplace with pay-per-call USDC billing on Base chain

## Facts

- Endpoint: POST https://komo-ai.vercel.app/api/open-ai21?utm_source=zero.xyz
- Price: $0.122357/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/komo-ai-openai21-proxy-endpoint-dc70cade
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_E9Hdj7XfuBMnfL9-dKL2s

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability komo-ai-openai21-proxy-endpoint-dc70cade -d '<json body>'
```

Example prompt: Use the Komo AI21 model endpoint to generate a response — I want to send a query and get back an AI-generated answer, billed per call in USDC on Base.

## When to prefer this

Choose this endpoint when you need AI21 language model capabilities without a direct AI21 subscription, want pay-per-call USDC billing on Base chain, or are integrating AI text generation into an x402-compatible crypto-native workflow.

## Known failure modes

- Payment failure if insufficient USDC balance on Base chain — HTTP 402 returned
- Malformed input object causes validation error
- AI21 upstream service unavailable — propagated error in result field
- Rate limiting or quota exceeded on underlying AI21 endpoint
- Invalid x402 payment header results in authentication rejection

## How this service works

150 premium API endpoints with pay-per-call pricing via x402 protocol on Base chain

## Output

Returns a result object containing the AI21 model's response data, structured as a JSON object with a 'result' field containing the output payload from the underlying AI21 language model API.

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "example": {
  "result": {
   "data": "example response"
  }
 },
 "properties": {
  "result": {
   "type": "object",
   "description": "API response data"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/komo-ai-openai21-proxy-endpoint-dc70cade/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from komo-ai.vercel.app](https://www.zero.xyz/host/komo-ai.vercel.app/llms.txt)