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AgentRXI Llama 4 Scout Chat Completions
x402
AgentRXI Llama 4 Scout Chat Completions is a paid API for AI agents from agentrxi.com, paid per call via x402, $0.004628/call, status unknown (last checked 2026-10-15).
OpenAI-compatible multimodal chat completions using Meta Llama 4 Scout with tool calling, paid per token via x402 micropayments
Price / call$0.004628
Success—
StatusUnknown
How this service works
OpenAI-compatible chat completions on Meta Llama 4 Scout, multimodal (image input) with tool calling. Set your OpenAI SDK base URL to https://agentrxi.com/v1/llama4 and pay per token with x402 instead of an API key: $0.81 per million input and $2.55 per million output tokens, minimum $0.002 a call, at most $0.0145. The 402 quotes your request's maximum; "upto" payers are charged only the tokens used. Same request/response shape as OpenAI (tool calling, image input, streaming
Output
Returns an OpenAI-format chat.completion JSON object with choices array containing the assistant message (text or tool call), finish_reason, and a usage block with prompt_tokens, completion_tokens, and total_tokens. Streaming is supported. Tool call responses follow the standard OpenAI tool_calls schema.
Example use cases
Multimodal image analysis task
“Look at this product photo and write a compelling 3-sentence marketing description for it using Llama 4 Scout — keep it under 150 tokens.”
Agentic tool-calling workflow
“Use Llama 4 Scout with my weather tool defined to answer: what should I wear today in Seattle? Call the tool if needed and summarize the recommendation.”
Pay-per-use LLM for cost-sensitive batch
“I need to run a one-off chat completion with Llama 4 Scout — translate this paragraph to French and keep max_tokens at 100 so I only pay for what I use.”
Technical details
Endpoint
GEThttps://agentrxi.com/v1/llama4/chat/completions?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need OpenAI-SDK-compatible multimodal chat completions (image input + tool calling) backed by Meta Llama 4 Scout without a monthly subscription — paying only per token via x402 micropayments. It is ideal for agents with bursty or unpredictable usage patterns, for avoiding API key management, or when you specifically want Llama 4 Scout's multimodal and agentic capabilities at $0.81/M input and $2.55/M output token pricing.
Side effects
- 402 Payment Required if x402 wallet has insufficient funds
- 400 Bad Request if prompt is missing or malformed
- Model refusal if input violates content policy
- Timeout on very long prompts or high max_tokens values
- Tool call parsing errors if tool schema is malformed
- Image URL unreachable causing vision input failure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"id": "chatcmpl-...",
"model": "llama-4-scout-17b",
"usage": {
"total_tokens": 18,
"prompt_tokens": 14,
"completion_tokens": 4
},
"object": "chat.completion",
"choices": [
{
"index": 0,
"message": {
"role": "assistant",
"content": "Bonjour !"
},
"finish_reason": "stop"
}
]
}
}Tags
x402
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