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Llama API (Pay-Per-Call Chat Completions)
x402
Llama API (Pay-Per-Call Chat Completions) is a paid API for AI agents from x402.agentindex.world, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).
Pay-per-call OpenAI-format chat completions powered by Meta Llama 4 Maverick via DeepInfra, with no API key required and fixed per-call pricing.
Price / call$0.001
Success—
StatusUnknown
How this service works
Llama API - pay per call, no API key. OpenAI-format chat completions on meta-llama/llama-4-maverick, pinned to DeepInfra for reliability. You sign a fixed price computed from your max_tokens; unused tokens are not refunded. 20s server-side timeout - never charged if it fires; set your client timeout to 30s. Try GET /llm/llama/sample.
Output
An OpenAI-compatible chat completion response containing the assistant's generated text, produced by Meta Llama 4 Maverick. The response reflects the conversation history provided in the messages array and is bounded by the max_tokens parameter. Unused tokens within the ceiling are not refunded. The server enforces a 20-second timeout and charges are not applied if the timeout fires.
Example use cases
On-demand LLM for agent pipeline
“I need you to send this conversation history to Llama 4 Maverick and get a response: [{"role":"user","content":"Summarize the key risks of investing in meme coins in 5 bullet points."}] — limit the reply to 300 tokens.”
No-key prototype LLM call
“I want to test a quick LLM call without setting up an API key — send this message to Llama 4 and show me what it says: 'Write a haiku about distributed systems.' Keep max_tokens at 100.”
Chatbot response generation
“My chatbot needs a reply for a user who asked 'What are three healthy breakfast ideas for someone with no time in the morning?' — run it through Llama 4 Maverick with a 400 token limit and return the response.”
Technical details
Endpoint
GEThttps://x402.agentindex.world/llm/llama?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a pay-per-call LLM completion with no API key setup, no subscription, and predictable per-call USDC pricing. It is ideal for AI agents that need sporadic or burst LLM calls without committing to a provider account, or for prototyping pipelines using the OpenAI message format against a capable open-weights model (Llama 4 Maverick). Prefer alternatives if you need streaming responses, model selection flexibility, refunds for unused tokens, or latency under a few seconds consistently.
Side effects
- 20-second server-side timeout fires — request is not charged but no completion is returned
- max_tokens exceeds 4096 cap — request may be rejected or capped
- messages array is empty or malformed — 400-level error returned
- USDC payment fails or is insufficient — payment-gated 402 response, no completion returned
- Client timeout shorter than 30s causes premature disconnect before server responds
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| messages | array | OpenAI-format chat messages: [{role, content}, ...]. |
| max_tokens | integer | Max completion tokens, capped at 4096 - also bounds the price ceiling. |
Tags
x402
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