Chat completion (Llama 3.3 70B or gpt-oss-120b)
Send a prompt, get an answer from a larger open model: Llama 3.3 70B Instruct (default) or OpenAI gpt-oss-120b, with an optional system prompt, up to 1,024 output tokens and adjustable temperature. Same call as /ai/chat with a stronger model. Use when the 8B model is not enough: reasoning, drafting and Q&A.
Inputs
| Name | Type | Description |
|---|---|---|
prompt (required) | string | User prompt, up to 8,000 characters |
model | string | llama-3.3-70b (default) or gpt-oss-120b. One of: llama-3.3-70b, gpt-oss-120b. |
system | string | Optional system prompt, up to 2,000 characters |
maxTokens | integer | Maximum output tokens, 1-1024 (default 400) |
temperature | number | 0-1.5 (default 0.6) |
Request
Over HTTP, with a card key from /credits:
curl -H "Authorization: Bearer adt_…" "https://agent-data-tools.revmesh2074.workers.dev/ai/chat-large?prompt=Explain%20x402%20in%20one%20sentence."Or one of your 25 free calls, no key:
curl "https://agent-data-tools.revmesh2074.workers.dev/ai/chat-large?prompt=Explain%20x402%20in%20one%20sentence.&trial=1"Without a key, the same URL answers 402 Payment Required with x402 and MPP terms, so an agent with a wallet pays per call in USDC (Base, Polygon, Arbitrum, Monad, World Chain or Tempo) and retries.
Example result
{
"model": "@cf/meta/llama-3.3-70b-instruct-fp8-fast",
"response": "x402 lets software pay for an HTTP request with a stablecoin by answering a 402 Payment Required challenge."
}From an AI agent (MCP)
Add the MCP server to Claude, Cursor or any MCP client. This tool is ai_chat_large, and the first 25 successful calls are free:
https://agent-data-tools.revmesh2074.workers.dev/mcp