How to Use OpenClaw with a Free LLM API — BazaarLink Integration Guide

Run OpenClaw AI agent with a free OpenAI-compatible LLM API. Get a free API key from BazaarLink — no credit card — and configure OpenClaw to use 300+ models including GPT-4o, Claude, Gemini, and auto:free for zero-cost inference.

What is OpenClaw?

OpenClaw is an open-source autonomous AI agent framework built around the ReAct loop (Reason + Act). It lets you run AI agents that can browse the web, fill forms, read documents, and send messages — all driven by your LLM of choice. Since its release in late 2025, it has grown to over 247,000 GitHub stars, making it one of the fastest-growing agent frameworks available.

OpenClaw supports Claude, GPT, Gemini, and local Ollama models — but you need to bring your own API key. That's exactly where BazaarLink comes in: a free OpenAI-compatible LLM API gateway with 300+ models and a free tier that requires no credit card.

Why Use BazaarLink with OpenClaw?

Step 1 — Get a Free BazaarLink API Key

Go to bazaarlink.ai/free and sign up. No credit card required. Your key will look like sk-bl-xxxxxxxx.

Or, if you're running OpenClaw inside an automated pipeline, register a key programmatically in one curl call:

# Register a free key (no credit card, no sign-up form)
curl -X POST https://bazaarlink.ai/api/v1/agents/register \
  -H "Content-Type: application/json" \
  -d '{"name": "openclaw-agent"}'

# Response:
{
  "api_key": "sk-bl-...",
  "credits": 100
}

Step 2 — Configure OpenClaw to Use BazaarLink

OpenClaw accepts any OpenAI-compatible endpoint. Set these two values in your OpenClaw configuration and you're done — no other changes needed:

# .env or OpenClaw config
OPENAI_API_KEY=sk-bl-YOUR_FREE_KEY
OPENAI_BASE_URL=https://bazaarlink.ai/api/v1

# Model — use auto:free for zero-cost, or pick any of 300+ models
OPENAI_MODEL=auto:free

Step 3 — Run OpenClaw

With BazaarLink configured as the backend, OpenClaw works exactly as documented. All tool-calling, ReAct loops, and task execution go through BazaarLink's OpenAI-compatible endpoint transparently.

# Install OpenClaw
git clone https://github.com/openclaw-ai/openclaw
cd openclaw
pip install -r requirements.txt

# Set your BazaarLink key
export OPENAI_API_KEY=sk-bl-YOUR_FREE_KEY
export OPENAI_BASE_URL=https://bazaarlink.ai/api/v1
export OPENAI_MODEL=auto:free

# Run
python main.py

Choosing the Right Model for OpenClaw

BazaarLink gives OpenClaw access to 300+ models. Here's a quick guide for different use cases:

Browse all available models at bazaarlink.ai/models.

Why This Matters: One Key, All Models

Without BazaarLink, running OpenClaw with different models means managing separate API keys for OpenAI, Anthropic, and Google — each with their own billing, rate limits, and credit card requirements. With BazaarLink, a single free key gives OpenClaw access to all of them through one endpoint.

• One key for all providers
• Switch models by changing one parameter
• Unified usage logs across all OpenClaw agent runs
• Start free, scale when ready — no upfront commitment

Get Started

Get your free BazaarLink API key at bazaarlink.ai/free — no credit card, no waitlist. Then set OPENAI_BASE_URL and OPENAI_API_KEY in OpenClaw and you're running in under 60 seconds.

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