Api Endpoint

x402-gateway-production.up.railway.app

x402engine — Meta's open-source model — great general-purpose performance at very low cost

Open interactive test console

Offering

Provider
x402-gateway-production.up.railway.app
Method
POST
Offering type
Api Endpoint
Transport type
http
Category
Api
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://x402-gateway-production.up.railway.app/api/llm/llama
MIME type
Not provided
First seen
2026-10-16T01:58:26.121Z
Last seen
Tags
None supplied

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.002613 USDC
Atomic price: 2613 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
2613000000000000 atomic units
Atomic price: 2613000000000000 · Network: eip155:4326 · Asset: 0xFAfDdbb3FC7688494971a79cc65DCa3EF82079E7 · Scheme: exact
Payment option 3
0.002613 USDC
Atomic price: 2613 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2613",
    "payTo": "0x7dd5Be069f2d2eAd75eC7C3423B116fF043c2629"
  },
  {
    "scheme": "exact",
    "network": "eip155:4326",
    "asset": "0xFAfDdbb3FC7688494971a79cc65DCa3EF82079E7",
    "amount": "2613000000000000",
    "payTo": "0x7dd5Be069f2d2eAd75eC7C3423B116fF043c2629"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "2613",
    "payTo": "Gzehfseq1k9AcHFSoV7qHmDGQx92nLMw78XXdqVWQQWa"
  }
]

Observed health

Status
Healthy
Latest latency
102 ms
Average latency
540 ms
HTTP status
204
Last checked
Reachability
100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "additionalProperties": false,
  "properties": {
    "body": {
      "additionalProperties": false,
      "properties": {
        "frequency_penalty": {
          "description": "Model-supported frequency_penalty; see /docs/llm-capabilities.md.",
          "type": "number"
        },
        "logit_bias": {
          "description": "Model-supported logit_bias; see /docs/llm-capabilities.md.",
          "type": "object"
        },
        "logprobs": {
          "description": "Model-supported logprobs; see /docs/llm-capabilities.md.",
          "type": "boolean"
        },
        "max_completion_tokens": {
          "description": "Alias for total output budget; bounded by model maxOutputTokens.",
          "type": "integer"
        },
        "max_tokens": {
          "description": "Total output budget, including reasoning. Use this or max_completion_tokens.",
          "example": 1024,
          "type": "integer"
        },
        "messages": {
          "description": "Text or model-supported multimodal messages; assistant tool calls may have null content",
          "items": {
            "additionalProperties": false,
            "anyOf": [
              {
                "required": [
                  "content"
                ]
              },
              {
                "required": [
                  "tool_calls"
                ]
              }
            ],
            "properties": {
              "annotations": {
                "items": {
                  "type": "object"
                },
                "type": "array"
              },
              "cache_control": {
                "type": "object"
              },
              "content": {
                "oneOf": [
                  {
                    "type": "string"
                  },
                  {
                    "type": "null"
                  },
                  {
                    "items": {
                      "additionalProperties": true,
                      "properties": {
                        "type": {
                          "enum": [
                            "text"
                          ],
                          "type": "string"
                        }
                      },
                      "required": [
                        "type"
                      ],
                      "type": "object"
                    },
                    "maxItems": 100,
                    "minItems": 1,
                    "type": "array"
                  }
                ]
              },
              "name": {
                "type": "string"
              },
              "reasoning": {
                "type": "string"
              },
              "reasoning_details": {
                "items": {
                  "type": "object"
                },
                "type": "array"
              },
              "refusal": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "role": {
                "enum": [
                  "system",
                  "developer",
                  "user",
                  "assistant",
                  "tool"
                ],
                "type": "string"
              },
              "tool_call_id": {
                "type": "string"
              },
              "tool_calls": {
                "items": {
                  "type": "object"
                },
                "type": "array"
              }
            },
            "required": [
              "role"
            ],
            "type": "object"
          },
          "maxItems": 100,
          "minItems": 1,
          "type": "array"
        },
        "min_p": {
          "description": "Model-supported min_p; see /docs/llm-capabilities.md.",
          "type": "number"
        },
        "presence_penalty": {
          "description": "Model-supported presence_penalty; see /docs/llm-capabilities.md.",
          "type": "number"
        },
        "repetition_penalty": {
          "description": "Model-supported repetition_penalty; see /docs/llm-capabilities.md.",
          "type": "number"
        },
        "response_format": {
          "description": "Model-supported response_format; see /docs/llm-capabilities.md.",
          "type": "object"
        },
        "seed": {
          "description": "Model-supported seed; see /docs/llm-capabilities.md.",
          "type": "integer"
        },
        "stop": {
          "description": "Model-supported stop; see /docs/llm-capabilities.md.",
          "oneOf": [
            {
              "type": "string"
            },
            {
              "items": {
                "type": "string"
              },
              "maxItems": 4,
              "type": "array"
            }
          ]
        },
        "stream": {
          "description": "Return live OpenAI-compatible SSE after payment settlement.",
          "type": "boolean"
        },
        "stream_options": {
          "description": "Optional include_usage boolean; usage is always requested upstream.",
          "type": "object"
        },
        "temperature": {
          "description": "Model-supported temperature; see /docs/llm-capabilities.md.",
          "type": "number"
        },
        "tool_choice": {
          "description": "Model-supported tool_choice; see /docs/llm-capabilities.md.",
          "oneOf": [
            {
              "enum": [
                "auto",
                "none",
                "required"
              ],
              "type": "string"
            },
            {
              "type": "object"
            }
          ]
        },
        "tools": {
          "description": "Client-executed function definitions; return results using role=tool and tool_call_id.",
          "items": {
            "properties": {
              "function": {
                "properties": {
                  "description": {
                    "type": "string"
                  },
                  "name": {
                    "type": "string"
                  },
                  "parameters": {
                    "type": "object"
                  },
                  "strict": {
                    "type": "boolean"
                  }
                },
                "type": "object"
              },
              "type": {
                "enum": [
                  "function"
                ],
                "type": "string"
              }
            },
            "required": [
              "function"
            ],
            "type": "object"
          },
          "type": "array"
        },
        "top_k": {
          "description": "Model-supported top_k; see /docs/llm-capabilities.md.",
          "type": "integer"
        },
        "top_logprobs": {
          "description": "Model-supported top_logprobs; see /docs/llm-capabilities.md.",
          "type": "integer"
        },
        "top_p": {
          "description": "Model-supported top_p; see /docs/llm-capabilities.md.",
          "type": "number"
        }
      },
      "required": [
        "messages"
      ],
      "type": "object"
    },
    "bodyType": {
      "enum": [
        "json",
        "form-data",
        "text"
      ],
      "type": "string"
    },
    "method": {
      "enum": [
        "POST"
      ],
      "type": "string"
    },
    "type": {
      "const": "http",
      "type": "string"
    }
  },
  "required": [
    "type",
    "bodyType",
    "body",
    "method"
  ],
  "type": "object"
}

Output schema

{
  "properties": {
    "example": {
      "properties": {
        "choices": {
          "items": {
            "properties": {
              "finish_reason": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "index": {
                "type": "integer"
              },
              "message": {
                "properties": {
                  "content": {
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "role": {
                    "type": "string"
                  },
                  "tool_calls": {
                    "items": {
                      "type": "object"
                    },
                    "type": "array"
                  }
                },
                "type": "object"
              }
            },
            "type": "object"
          },
          "type": "array"
        },
        "content": {
          "description": "Convenience copy of the first assistant message's text.",
          "type": "string"
        },
        "model": {
          "type": "string"
        },
        "usage": {
          "description": "Provider token and usage accounting, when returned.",
          "type": "object"
        }
      },
      "required": [
        "choices",
        "content"
      ],
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}