AI agent API access with OpenAI-compatible chat completions.
Give your agents a predictable LLM backend with free testing, OpenAI-compatible routes, and flat-rate access subject to fair-use and shared-capacity limits.
Predictable backend
Agent loops become less scary when pricing is flat-rate.
Standard API shape
Use chat completions, model listing, and usage metadata.
Privacy defaults
Prompt and response text is not routinely retained as conversation history.
Quick setup
Create an account, copy your yolo_... API key, set your base URL to https://yolo-auto.com/v1, and use a public model from the models page.
Best next pages
Docs · Pricing · Models · Free AI chat · Cheap LLM API
For agentic workloads
Yolo-Auto is built for the messy reality of agents: long context, tool calls in surrounding apps, repeated prompts, and unpredictable usage spikes.
Use your own orchestration
Yolo-Auto provides model inference. Your app, framework, or agent controls tools, memory, files, and actions.
Free first request path
Start with a free account, create an API key, and validate your agent against the /v1 endpoint.
Who AI Agent API is actually for
AI Agent API is best for developers and power users who want model access inside tools, agents, scripts, and apps, not just a closed consumer chatbot tab.
- Command-line coding agents that read, plan, edit, and retry.
- IDE helpers and internal automation tools.
- Agentic workflows where predictable pricing and prompt privacy matter.
Agents are not normal API consumers
A human chat session is usually linear. An agent session is messy: it inspects files, reasons, retries, summarizes, and may loop while fixing a problem. That usage pattern makes per-token pricing harder to predict.
Yolo-Auto gives agent builders an OpenAI-compatible model backend with no saved prompt history and a flat-rate upgrade path when free testing is not enough.
Try AI Agent API with a normal chat completion
The fastest test is a single request against the OpenAI-compatible endpoint. Use your real Yolo-Auto API key, then swap the model ID if the models page shows a newer default.
curl
curl https://yolo-auto.com/v1/chat/completions \
-H "Authorization: Bearer yolo_YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "qwen3.8-27b",
"messages": [
{ "role": "user", "content": "Plan the next three safe steps for a coding agent working inside a repository." }
]
}'OpenAI SDK style
import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.YOLO_AUTO_API_KEY,
baseURL: "https://yolo-auto.com/v1"
});
const response = await client.chat.completions.create({
model: "qwen3.8-27b",
messages: [{ role: "user", content: "Plan the next three safe steps for a coding agent working inside a repository." }]
});
console.log(response.choices[0]?.message?.content);When to choose Yolo-Auto
You need OpenAI-compatible LLM access, predictable cost, free testing, and no prompt or response storage.
You need image generation, every model under the sun, a managed IDE, or a consumer-only chatbot with no API workflow.
Read the docs, check models, compare pricing, or review the privacy policy.
AI Agent API FAQ
Does Yolo-Auto run tools for my agent?
No. Yolo-Auto provides model responses through the API. Your agent framework controls tools and actions.
Is it compatible with agent frameworks?
It works with frameworks and clients that support OpenAI-compatible endpoints.
Can I use it for commercial agents?
Use is governed by the current Terms of Service and plan limits.
Related LLM API guides
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LLM API for Coding AgentsLLM API for coding agents. Yolo-Auto offers OpenAI-compatible chat completions, flat-rate pricing, free testing, and no saved prompt history.