# Orbonomy LLM Chat

> Orbonomy LLM Chat is a paid API for AI agents from main.orbonomy.xyz, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Send a chat message array to an LLM and receive a generated response, billed per call via x402 micropayment protocol.

## Facts

- Endpoint: POST https://main.orbonomy.xyz/api/llm/chat
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/orbonomy-llm-chat-c8539f10
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Iq_zHBU2WtEJVfW-WkpHO

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 orbonomy-llm-chat-c8539f10 -d '<json body>'
```

Example prompt: Send this conversation thread to Orbonomy's LLM chat endpoint and get a reply — the messages are [{"role":"user","content":"Explain quantum entanglement simply"}] and limit the response to 200 tokens.

## When to prefer this

Choose this endpoint when you need pay-per-call LLM chat completions without a subscription, especially in agentic workflows that use the x402 micropayment protocol and need to avoid committing to a monthly plan.

## Known failure modes

- Payment not included or insufficient — 402 Payment Required returned
- max_tokens not provided — request rejected with 400 validation error
- messages array empty or malformed — 400 bad request
- Model unavailable or overloaded — 500 or timeout
- Insufficient USDC balance for x402 payment — transaction fails before response

## How this service works

50+ pay-per-call API endpoints across accommodation, AI, content, fact-checking, and data services. Powered by x402 protocol.

## Output

A JSON object with a success boolean and the LLM-generated reply text corresponding to the provided message thread, returned after a per-call USDC micropayment is processed.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "messages",
  "max_tokens"
 ],
 "properties": {
  "messages": {
   "type": "array"
  },
  "max_tokens": {
   "type": "integer"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "success": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/orbonomy-llm-chat-c8539f10/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from main.orbonomy.xyz](https://www.zero.xyz/host/main.orbonomy.xyz/llms.txt)