Api Endpoint

DeepSeek V4.1 Flash chat

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

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
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
0.013259 USDC
Atomic price: 13259 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.110962 USDC
Atomic price: 110962 · Network: eip155:8453 · Asset: USDC · Scheme: upto
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "13259",
    "payTo": "0x19a78B27a28eD93C3c914878bde7f2f843AfAEa8"
  },
  {
    "scheme": "upto",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "110962",
    "payTo": "0x19a78B27a28eD93C3c914878bde7f2f843AfAEa8"
  }
]

Observed health

Status
Healthy
Latest latency
63 ms
Average latency
216 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": 2048,
          "minimum": 1,
          "type": "integer"
        },
        "messages": {
          "description": "OpenAI-style chat messages.",
          "items": {
            "properties": {
              "content": {
                "maxLength": 32000,
                "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": 2048,
              "minimum": 1,
              "type": "integer"
            },
            "messages": {
              "description": "OpenAI-style chat messages.",
              "items": {
                "properties": {
                  "content": {
                    "maxLength": 32000,
                    "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"
}