{"slug":"api-erb-llm-com-v1-chat-completions-e22e58","title":"OpenAI-compatible chat completions served by a self-hosted 27B open-weight LLM","host":"api.erb-llm.com","method":"POST","resource":"https://api.erb-llm.com/v1/chat/completions","category":"other","description":"OpenAI-compatible chat completions served by a self-hosted 27B open-weight LLM. Pay per call in USDC on Base via x402 - no API key or account. Use it for text generation, summarization, classification and agent tool calls that need cheap, private inference. Send a messages array (plus optional model","price_listed":0.005,"price_asked":null,"state":"effects","state_label":"Not tested: has real-world effects","checks_7d":0,"answered_7d":0,"latency_ms_median":null,"reported_calls_30d":8,"reported_payers_30d":1,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"max_tokens":16,"messages":[{"content":"You are a helpful assistant.","role":"system"},{"content":"Reply with exactly one word: hello","role":"user"}],"model":"qwen/qwen3.8-27b","temperature":0.2},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"body":{"properties":{"max_tokens":{"description":"Optional output token ceiling. This tier caps output at 4096 tokens - higher values are clamped to 4096, not rejected. Use the long/extended tiers for bigger outputs.","minimum":1,"type":"integer"},"messages":{"description":"OpenAI chat messages (system/user/assistant).","items":{"properties":{"content":{"type":"string"},"role":{"enum":["system","user","assistant"],"type":"string"}},"required":["role","content"],"type":"object"},"minItems":1,"type":"array"},"model":{"description":"Model ID from the free GET /v1/models endpoint (e.g. qwen/qwen3.8-27b). Optional - a default chat model is chosen if omitted.","type":"string"},"temperature":{"maximum":2,"minimum":0,"type":"number"}},"required":["messages"],"type":"object"},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"method":{"enum":["POST","PUT","PATCH"],"type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"},"output":{"properties":{"example":{"properties":{"choices":{"items":{"properties":{"finish_reason":{"type":"string"},"index":{"type":"integer"},"message":{"properties":{"content":{"type":"string"},"role":{"type":"string"}},"type":"object"}},"type":"object"},"type":"array"},"id":{"type":"string"},"model":{"type":"string"},"object":{"const":"chat.completion"},"usage":{"properties":{"completion_tokens":{"type":"integer"},"prompt_tokens":{"type":"integer"},"total_tokens":{"type":"integer"}},"type":"object"},"x402":{"description":"Billing stamp added by the gateway.","properties":{"capped_from":{"type":"integer"},"charged":{"type":"string"},"inference_ms":{"type":"integer"},"note":{"type":"string"},"output_cap":{"type":"integer"},"tier":{"type":"string"},"tokens_out":{"type":"integer"}},"type":"object"}},"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[],"description_full":"OpenAI-compatible chat completions served by a self-hosted 27B open-weight LLM. Pay per call in USDC on Base via x402 - no API key or account. Use it for text generation, summarization, classification and agent tool calls that need cheap, private inference. Send a messages array (plus optional model, max_tokens, temperature); receive standard OpenAI chat.completion JSON. A free trial (POST /v1/trial) is open during promo windows.","last_updated":"2026-10-01T06:58:11.598Z","schemes":["exact"]}