{"slug":"api-webbersites-com-v1-messages-e86376","title":"ANTHROPIC-COMPATIBLE /v1/messages — Claude Haiku 4.5 through the exact Anthropic","host":"api.webbersites.com","method":"POST","resource":"https://api.webbersites.com/v1/messages","category":"market","description":"ANTHROPIC-COMPATIBLE /v1/messages — Claude Haiku 4.5 through the exact Anthropic API dialect: same request/response shape, no Anthropic account, the x402 payment IS the auth. Point an Anthropic SDK's base_url at https://api.webbersites.com and pay per call. Caps: 16,000 input chars, 1,024 output tok","price_listed":0.01,"price_asked":0.01,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":1190,"reported_calls_30d":67,"reported_payers_30d":5,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"max_tokens":256,"messages":[{"content":"Summarize x402 in one sentence.","role":"user"}],"model":"claude-haiku-4-5"},"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":"output cap, clamped to 1,024","type":"number"},"messages":{"description":"Anthropic-style messages: [{role, content}], text content only, 16,000 chars total","type":"array"},"model":{"description":"claude-haiku-4-5 (the only model on this route)","type":"string"},"system":{"description":"optional system prompt (counts toward the input cap)","type":"string"}},"required":["messages"]},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"method":{"enum":["POST"],"type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"},"output":{"properties":{"example":{"properties":{"content":{"description":"Anthropic-shape content blocks; the answer is content[0].text","type":"array"},"stop_reason":{"type":"string"},"usage":{"type":"object"}},"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-09-24","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.01,"price_match":true,"latency_ms":1190,"error":null}],"description_full":"ANTHROPIC-COMPATIBLE /v1/messages — Claude Haiku 4.5 through the exact Anthropic API dialect: same request/response shape, no Anthropic account, the x402 payment IS the auth. Point an Anthropic SDK's base_url at https://api.webbersites.com and pay per call. Caps: 16,000 input chars, 1,024 output tokens (max_tokens clamped), text-only, no streaming.","last_updated":"2026-09-22T04:55:53.712Z","schemes":["exact"]}