Anthropic Compatible

The standard Anthropic Messages compatible path, suited to the Anthropic SDK and existing Anthropic code migration.

POST/api/v1/messages

Anthropic 兼容

标准 Anthropic Messages 兼容路径；历史路径 /api/anthropic/v1/messages 继续兼容。

Bearer API KeyUse the Authorization: Bearer sk_live_... header; x-api-key is also supported.

Confirm the model call name firstFirst filter models that support this endpoint format on the Models page, then open a model detail page to copy its call name. Your account's final availability also depends on organization permissions.

Request structure

The section below confirms the method, URL and authentication scheme. It is an HTTP structure snippet, not a standalone runnable example.

HTTP

POST https://www.silvamux.com/api/v1/messages
Authorization: Bearer $SILVAMUX_API_KEY
Content-Type: application/json

Request body

application/json · AnthropicRequest · Required

Field	Type	Required	Description
`max_tokens`	integer	Yes	—
`messages`	array<Message>	Yes	—
`messages.content`	string \| array<FreeFormObject>	Yes	—
`messages.role`	string (system \| user \| assistant \| tool)	Yes	—
`model`	string	Yes	—
`stream`	boolean	No	Default: false
`system`	string \| array<FreeFormObject>	No	—

Response

`200`Anthropic JSON 或 SSE 响应。

application/json · FreeFormObject

`default`Anthropic 兼容错误。

application/json · AnthropicError

Field	Type	Required	Description
`error`	object	Yes	—
`error.message`	string	Yes	—
`error.type`	string	Yes	—
`type`	string (error)	Yes	—

The historical path /api/anthropic/v1/messages remains supported for existing projects only; new projects should use /api/v1/messages.

Examples

curl https://www.silvamux.com/api/v1/messages \
  -H "Authorization: Bearer $SILVAMUX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "minimax-m2.5",
    "max_tokens": 1024,
    "messages": [{"role": "user", "content": "Hello"}]
  }'

# pip install anthropic
# Point base_url at /api: the SDK appends /v1/messages itself
import os
from anthropic import Anthropic

client = Anthropic(
    api_key=os.environ["SILVAMUX_API_KEY"],
    base_url="https://www.silvamux.com/api",
)

message = client.messages.create(
    model="minimax-m2.5",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Hello"}],
)

print(message.content[0].text)

// npm install @anthropic-ai/sdk
// Point baseURL at /api: the SDK appends /v1/messages itself
import Anthropic from "@anthropic-ai/sdk";

const client = new Anthropic({
  apiKey: process.env.SILVAMUX_API_KEY,
  baseURL: "https://www.silvamux.com/api",
});

const message = await client.messages.create({
  model: "minimax-m2.5",
  max_tokens: 1024,
  messages: [{ role: "user", content: "Hello" }],
});

console.log(message.content[0].text);

// Standard library only
package main

import (
    "bytes"
    "fmt"
    "io"
    "net/http"
    "os"
)

func main() {
    payload := []byte(`{
        "model": "minimax-m2.5",
        "max_tokens": 1024,
        "messages": [{"role": "user", "content": "Hello"}]
    }`)

    req, err := http.NewRequest("POST", "https://www.silvamux.com/api/v1/messages", bytes.NewReader(payload))
    if err != nil {
        panic(err)
    }
    req.Header.Set("Authorization", "Bearer "+os.Getenv("SILVAMUX_API_KEY"))
    req.Header.Set("Content-Type", "application/json")

    resp, err := http.DefaultClient.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    body, _ := io.ReadAll(resp.Body)
    fmt.Println(string(body))
}

Response (Anthropic format):

{
  "id": "msg_xxxx",
  "type": "message",
  "role": "assistant",
  "content": [{"type": "text", "text": "Hello! How can I help you today?"}],
  "usage": {"input_tokens": 10, "output_tokens": 15}
}

Streaming follows the Anthropic SSE specification.