{"x402Version": 2, "resources": [{"resource": "https://api.hergertsynthora.com/v1/llm-smart", "accepts": [{"scheme": "exact", "network": "eip155:8453", "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "maxAmountRequired": "5000", "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167", "resource": "https://api.hergertsynthora.com/v1/llm-smart", "description": "SYNTHORA LLM Gateway SMART: OpenAI-compatible /v1/chat/completions pay-per-call, no API keys. Large free-tier models (llama-3.3-70b class) with automatic upstream failover, Ed25519-signed. 0.005 USDC via x402 on Base. POST {\"messages\":[{\"role\":\"user\",\"content\":\"...\"}]} (or {\"prompt\":\"...\"}).", "mimeType": "application/json", "maxTimeoutSeconds": 300, "extra": {"name": "USD Coin", "version": "2"}}]}]}