Api Endpoint

DeepSeek V4.1 Flash metered chat

Featured model. Chat completions via Telnyx Inference (deepseek-ai/DeepSeek-V4.1-Flash). OpenAI-compatible. $0.013259 USDC per call. (upto metered — large context)

Open interactive test console

Offering

Provider
x402.telnyx.com
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.telnyx.com/v1/chat/completions/_t/deepseek-v4.1-flash/upto
MIME type
Not provided
First seen
2026-10-16T01:50:19.913Z
Last seen
Tags
AI, LLM, chat-completions, featured, telnyx

Payment pricing

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

Payment option 1
0.110962 USDC
Atomic price: 110962 · Network: eip155:8453 · Asset: USDC · Scheme: upto
Raw x402 terms
[
  {
    "scheme": "upto",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "110962",
    "payTo": "0x19a78B27a28eD93C3c914878bde7f2f843AfAEa8"
  }
]

Observed health

Status
Healthy
Latest latency
97 ms
Average latency
214 ms
HTTP status
200
Last checked
Reachability
100% over 13 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": {
      "properties": {
        "max_tokens": {
          "maximum": 16384,
          "minimum": 1,
          "type": "integer"
        },
        "messages": {
          "description": "OpenAI-style chat messages.",
          "items": {
            "properties": {
              "content": {
                "maxLength": 900000,
                "type": "string"
              },
              "role": {
                "enum": [
                  "system",
                  "user",
                  "assistant",
                  "tool"
                ],
                "type": "string"
              }
            },
            "required": [
              "role",
              "content"
            ],
            "type": "object"
          },
          "maxItems": 32,
          "type": "array"
        },
        "model": {
          "const": "deepseek-ai/DeepSeek-V4.1-Flash",
          "description": "Model identifier; fixed to deepseek-ai/DeepSeek-V4.1-Flash on this route.",
          "type": "string"
        },
        "n": {
          "const": 1,
          "description": "Fixed to one completion per paid call.",
          "type": "integer"
        },
        "temperature": {
          "maximum": 2,
          "minimum": 0,
          "type": "number"
        },
        "tools": {
          "items": {
            "type": "object"
          },
          "maxItems": 16,
          "type": "array"
        }
      },
      "required": [
        "model",
        "messages"
      ],
      "type": "object"
    },
    "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 schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "body": {
          "properties": {
            "max_tokens": {
              "maximum": 16384,
              "minimum": 1,
              "type": "integer"
            },
            "messages": {
              "description": "OpenAI-style chat messages.",
              "items": {
                "properties": {
                  "content": {
                    "maxLength": 900000,
                    "type": "string"
                  },
                  "role": {
                    "enum": [
                      "system",
                      "user",
                      "assistant",
                      "tool"
                    ],
                    "type": "string"
                  }
                },
                "required": [
                  "role",
                  "content"
                ],
                "type": "object"
              },
              "maxItems": 32,
              "type": "array"
            },
            "model": {
              "const": "deepseek-ai/DeepSeek-V4.1-Flash",
              "description": "Model identifier; fixed to deepseek-ai/DeepSeek-V4.1-Flash on this route.",
              "type": "string"
            },
            "n": {
              "const": 1,
              "description": "Fixed to one completion per paid call.",
              "type": "integer"
            },
            "temperature": {
              "maximum": 2,
              "minimum": 0,
              "type": "number"
            },
            "tools": {
              "items": {
                "type": "object"
              },
              "maxItems": 16,
              "type": "array"
            }
          },
          "required": [
            "model",
            "messages"
          ],
          "type": "object"
        },
        "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": {
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}