{"protocolVersion": "0.3.0", "name": "SYNTHORA LLM Gateway FAST", "description": "SYNTHORA LLM Gateway FAST: OpenAI-compatible /v1/chat/completions pay-per-call, no API keys. Fast free-tier models (llama-3.1-8b class) with automatic upstream failover, Ed25519-signed. 0.005 USDC via x402 on Base. POST {\"messages\":[{\"role\":\"user\",\"content\":\"...\"}]} (or {\"prompt\":\"...\"}).", "url": "https://api.hergertsynthora.com/v1/llm-fast", "preferredTransport": "HTTP+JSON", "additionalInterfaces": [{"url": "https://api.hergertsynthora.com/v1/llm-fast", "transport": "HTTP+JSON"}, {"url": "https://api.hergertsynthora.com/v1/a2a", "transport": "JSONRPC"}], "version": "1.0.0", "provider": {"organization": "SYNTHORA", "url": "https://hergertsynthora.com"}, "capabilities": {"streaming": false, "pushNotifications": false, "stateTransitionHistory": false}, "defaultInputModes": ["application/json"], "defaultOutputModes": ["application/json"], "skills": [{"id": "llm_fast", "name": "llm fast", "description": "SYNTHORA LLM Gateway FAST: OpenAI-compatible /v1/chat/completions pay-per-call, no API keys. Fast free-tier models (llama-3.1-8b class) with automatic upstream failover, Ed25519-signed. 0.005 USDC via x402 on Base. POST {\"messages\":[{\"role\":\"user\",\"content\":\"...\"}]} (or {\"prompt\":\"...\"}).", "tags": ["llm", "fast", "x402", "synthora", "m2m", "a2a"], "examples": ["{\"model\": \"llm-fast\", \"messages\": [{\"role\": \"user\", \"content\": \"Say hello in one word\"}]}"], "inputModes": ["application/json"], "outputModes": ["application/json"], "inputSchema": {"type": "object", "properties": {"model": {"type": "string", "description": "Etiqueta aceptada; el tier fija el modelo real"}, "messages": {"type": "array", "items": {"type": "object"}, "description": "OpenAI chat messages"}, "prompt": {"type": "string", "description": "Atajo sin messages"}, "system": {"type": "string", "description": "System prompt opcional (con prompt)"}, "max_tokens": {"type": "integer", "description": "Max output tokens (default 256, cap 1024)"}, "temperature": {"type": "number"}}, "anyOf": [{"required": ["messages"]}, {"required": ["prompt"]}]}}], "securitySchemes": {"x402": {"type": "http", "scheme": "x402", "description": "HTTP 402 micropayment. 5000 atomic USDC on eip155:8453."}}, "security": [{"x402": []}], "x402": {"network": "eip155:8453", "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "amount": "5000", "payTo": "0x6D9F318463168fF637b50E5b9a21392e97c7c167", "resource": "https://api.hergertsynthora.com/v1/llm-fast"}, "mcp": {"endpoint": "https://api.hergertsynthora.com/v1/mcp", "transport": "http-jsonrpc"}}