{"uid":"cap_Fo6haF246aEkCbQClzoWx","slug":"x402-gateway-production-up-railway-app-f1a981d4","name":"Claude Sonnet via x402 Gateway","description":"Anthropic's balanced model — excellent coding, reasoning, and creative writing","url":"https://x402-gateway-production.up.railway.app/api/llm/claude-sonnet?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","bodyType","body","method"],"properties":{"body":{"type":"object","required":["messages"],"properties":{"stop":{"oneOf":[{"type":"string"},{"type":"array","items":{"type":"string"},"maxItems":4}],"description":"Model-supported stop; see /docs/llm-capabilities.md."},"tools":{"type":"array","items":{"type":"object","required":["function"],"properties":{"type":{"enum":["function"],"type":"string"},"function":{"type":"object","properties":{"name":{"type":"string"},"strict":{"type":"boolean"},"parameters":{"type":"object"},"description":{"type":"string"}}}}},"description":"Client-executed function definitions; return results using role=tool and tool_call_id."},"top_k":{"type":"integer","description":"Model-supported top_k; see /docs/llm-capabilities.md."},"top_p":{"type":"number","description":"Model-supported top_p; see /docs/llm-capabilities.md."},"stream":{"type":"boolean","description":"Return live OpenAI-compatible SSE after payment settlement."},"plugins":{"type":"array","items":{"type":"object","required":["pdf"],"properties":{"id":{"enum":["file-parser"],"type":"string"},"pdf":{"type":"object","properties":{"engine":{"enum":["native"],"type":"string"}}}}},"description":"Optional native PDF parser only; automatically enabled for file inputs."},"messages":{"type":"array","items":{"type":"object","anyOf":[{"required":["content"]},{"required":["tool_calls"]}],"required":["role"],"properties":{"name":{"type":"string"},"role":{"enum":["system","developer","user","assistant","tool"],"type":"string"},"content":{"oneOf":[{"type":"string"},{"type":"null"},{"type":"array","items":{"type":"object","required":["type"],"properties":{"type":{"enum":["text","image_url","file"],"type":"string"}},"additionalProperties":true},"maxItems":100,"minItems":1}]},"refusal":{"type":["string","null"]},"reasoning":{"type":"string"},"tool_calls":{"type":"array","items":{"type":"object"}},"annotations":{"type":"array","items":{"type":"object"}},"tool_call_id":{"type":"string"},"cache_control":{"type":"object"},"reasoning_details":{"type":"array","items":{"type":"object"}}},"additionalProperties":false},"maxItems":100,"minItems":1,"description":"Text or model-supported multimodal messages; assistant tool calls may have null content"},"reasoning":{"type":"object","description":"Model-supported reasoning; see /docs/llm-capabilities.md."},"max_tokens":{"type":"integer","example":1024,"description":"Total output budget, including reasoning. 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Include docstring and example usage."}],"max_tokens":500},"response":{"model":"anthropic/claude-4.5-sonnet-20250929","usage":{"cost":0.007599,"is_byok":false,"cost_details":{"upstream_inference_cost":0.007599,"upstream_inference_prompt_cost":0.000099,"upstream_inference_completions_cost":0.0075},"total_tokens":533,"prompt_tokens":33,"completion_tokens":500,"prompt_tokens_details":{"audio_tokens":0,"video_tokens":0,"cached_tokens":0,"cache_write_tokens":0},"completion_tokens_details":{"audio_tokens":0,"image_tokens":0,"reasoning_tokens":0}},"content":"```python\nimport re\n\ndef validate_email(email):\n    \"\"\"\n    Validates an email address using regular expression pattern matching.\n    \n    This function checks if an email address follows the standard format:\n    - Local part (before @): alphanumeric characters, dots, hyphens, underscores\n    - @ symbol (required)\n    - Domain name: alphanumeric characters and hyphens\n    - Top-level domain: 2-6 alphabetic characters after a dot\n    \n    Args:\n        email (str): The email address string to validate\n        \n    Returns:\n        bool: True if the email is valid, False otherwise\n        \n    Examples:\n        >>> validate_email(\"user@example.com\")\n        True\n        >>> validate_email(\"john.doe123@company.co.uk\")\n        True\n        >>> validate_email(\"invalid.email@\")\n        False\n        >>> validate_email(\"@example.com\")\n        False\n        >>> validate_email(\"user@domain\")\n        False\n    \"\"\"\n    # Regular expression pattern for email validation\n    pattern = r'^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,6}$'\n    \n    # Return True if pattern matches, False otherwise\n    if re.match(pattern, email):\n        return True\n    return False\n\n\n# Example usage\nif __name__ == \"__main__\":\n    # Test cases\n    test_emails = [\n        \"user@example.com\",           # Valid\n        \"john.doe@company.co.uk\",     # Valid\n        \"test_email123@domain.org\",   # Valid\n        \"name+tag@example.com\",       # Valid with + (extended pattern)\n        \"invalid.email@\",             # Invalid - no domain\n        \"@example.com\",               # Invalid - no local part\n        \"user@domain\",                # Invalid - no TLD\n        \"user name@example.com\",      # Invalid - space in local part\n        \"user@.com\",                  # Invalid - missing domain name\n        \"user@@example.com\",          # Invalid"}},"exampleRequest":{"model":"claude-sonnet","messages":[{"role":"user","content":"Write a Python function that validates email addresses using regex and returns True if valid, False otherwise. 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