Claude-compatible API Platform

Claude-compatible AI infrastructure for startups in China.

Unified access to leading models through a single, reliable API. Built for developers, optimized for agents.

from anthropic import Anthropic

client = Anthropic(
    api_key="tk-••••••••",
    base_url="https://api.tokensea.dev/v1"
)

message = client.messages.create(
    model="claude-3-7-sonnet",
    max_tokens=4096,
    messages=[
        {
            "role": "user",
            "content": "Explain transformers simply."
        }
    ]
)

print(message.content)

import Anthropic from "@anthropic-ai/sdk";

const client = new Anthropic({
  apiKey: process.env.TOKENSEA_API_KEY,
  baseURL: "https://api.tokensea.dev/v1",
});

const response = await client.messages.create({
  model: "claude-3-7-sonnet",
  max_tokens: 4096,
  messages: [
    {
      role: "user",
      content: "Explain transformers simply."
    }
  ]
});

console.log(response);

curl https://api.tokensea.dev/v1/messages \\
  -H "Content-Type: application/json" \\
  -H "x-api-key: tk-••••••••" \\
  -d '{
    "model": "claude-3-7-sonnet",
    "max_tokens": 4096,
    "messages": [
      {
        "role": "user",
        "content": "Explain transformers simply."
      }
    ]
  }'

client := anthropic.NewClient(
    option.WithAPIKey(os.Getenv("TOKENSEA_API_KEY")),
    option.WithBaseURL("https://api.tokensea.dev/v1"),
)

message, err := client.Messages.New(
    context.Background(),
    anthropic.MessageNewParams{
        Model: anthropic.ModelClaude3_7Sonnet,
        MaxTokens: 4096,
        Messages: []anthropic.MessageParam{
            anthropic.NewUserMessage(
                anthropic.NewTextBlock(
                    "Explain transformers simply.",
                ),
            ),
        },
    },
)

fmt.Println(message)

Compatible with Anthropic API and SDKs.

Reliable

Multi-region routing, automatic failover and 99.9% uptime SLA ensure your applications stay online under production workloads.

Claude-compatible

Fully compatible with Anthropic APIs and SDKs. Existing applications work with minimal or no code changes.

Built for agents

Optimized for coding, tool use, long-context reasoning and complex multi-step agent workflows.

Supported Models

99.9% Uptime SLA

Global Routing Multi-region

Low Latency Optimized Network

Enterprise Ready Security & Support