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Losbeto OpenAI-Compatible LLM Chat Completions (x402)
x402
Losbeto OpenAI-Compatible LLM Chat Completions (x402) is a paid API for AI agents from markets.losbeto.xyz, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-11).
Sends a chat prompt to an OpenAI-compatible LLM gateway and receives a completion response, billed per-call at $0.005 USDC via the x402 protocol — no API keys or accounts required.
Price / call$0.005
Success—
StatusUnknown
How this service works
OpenAI-compatible LLM gateway at $0.005/call — change base_url, pay in USDC. Plus pay-per-call market data: multi-oracle price consensus, sentiment, forex, equities, commodities, Brazil macro (BCB/B3) and crypto. No API keys, no accounts. USDC on Base, Solana and Algorand via x402.
Output
An OpenAI-compatible chat.completion JSON object containing the assistant's message content, model used, and token usage counts. The response mirrors the standard OpenAI /v1/chat/completions format so any OpenAI SDK can parse it directly.
Example use cases
Keyless LLM for autonomous agent
“My agent needs to call an LLM to draft a short reply to a customer complaint without needing an API key or account — use Losbeto's pay-per-call gateway, set max_tokens to 256 and temperature to 0.5, and pay the USDC fee on Base.”
Budget-controlled text summarization
“Summarize this 500-word article into 3 bullet points using the Losbeto chat API — keep it under 200 tokens and use a low temperature of 0.2 so it stays factual.”
On-chain agent reasoning step
“I'm building a DeFi agent that needs to reason about market conditions — have it call the Losbeto LLM with a system prompt explaining it's a crypto analyst and a user message asking 'should I rebalance my portfolio given BTC is up 8% today?', with max_tokens 512.”
Technical details
Endpoint
POSThttps://markets.losbeto.xyz/v1/chat/completions?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent needs keyless, accountless LLM inference billed in USDC stablecoins via x402 micropayments — ideal for autonomous agents on Base, Solana, or Algorand that cannot hold traditional API credentials. Prefer it over direct OpenAI/Groq APIs when the agent must pay programmatically per call without pre-provisioned keys, or when operating in a crypto-native agentic stack. Not suitable when streaming, tool use, or vision/image input is required.
Side effects
- Payment not received or invalid x402 USDC transaction — returns 402 Payment Required
- Messages array missing or malformed — returns 400 Bad Request
- All backend providers (Groq, Gemini) unavailable — returns 503 or error in response body
- Streaming, function/tool calls, or vision inputs requested — returns an explicit unsupported-feature error
- max_tokens outside 16-2048 range — may be clamped or rejected
- Temperature outside 0.0-1.5 range — may be clamped or return validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json"
}Tags
x402
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