feat: 支持Anthropic API协议 | support Anthropic API protocol #2323
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- 添加Anthropic适配器实现 | Add Anthropic adaptor implementation - 支持Anthropic消息格式转换 | Support Anthropic message format conversion - 添加Vertex AI Claude适配器支持 | Add Vertex AI Claude adapter support - 更新Anthropic的中继模式定义 | Update relay mode definitions for Anthropic - 添加Anthropic控制器和路由 | Add Anthropic controller and routing 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: [email protected]
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Pull Request Overview
This PR adds comprehensive support for the Anthropic API protocol to the one-api project, enabling native Anthropic API compatibility alongside existing OpenAI format conversion. The implementation includes a new direct protocol mode that bypasses format conversion for improved efficiency and compatibility.
Key changes:
- Native Anthropic API endpoint support at
/anthropic/v1/messages - Direct Anthropic protocol handling without OpenAI format conversion
- Enhanced SystemPrompt type to handle both string and array formats
Reviewed Changes
Copilot reviewed 12 out of 12 changed files in this pull request and generated 5 comments.
Show a summary per file
| File | Description |
|---|---|
| router/relay.go | Adds Anthropic API routing with authentication middleware |
| relay/controller/anthropic.go | New controller for native Anthropic request processing |
| relay/adaptor/anthropic/main.go | Adds direct handlers for native Anthropic responses |
| relay/adaptor/anthropic/model.go | Enhanced SystemPrompt type with flexible JSON marshaling |
| relay/adaptor/anthropic/adaptor.go | Updates adapter for native protocol support |
| relay/meta/relay_meta.go | Forces Anthropic API type for native requests |
| relay/relaymode/*.go | Adds AnthropicMessages relay mode definition |
| controller/relay.go | Routes AnthropicMessages mode to new controller |
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- 清理不必要的调试日志，减少生产环境噪音 - 将详细日志从Infof降级为Debugf级别 - 保留关键错误日志和重要流程信息 - 优化日志结构，提高可读性和维护性 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <[email protected]>
…s identified by CodeReview - 修复JSON注入漏洞：使用json.Marshal()安全转义字符串内容 - 定义常量CHARS_PER_TOKEN替换硬编码的token估算数字4 - 处理UnmarshalJSON错误，避免静默失败并记录错误日志 - 定义常量替换硬编码的API端点路径，提高可维护性 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <[email protected]>
- Add comprehensive npm mirror configuration for faster package downloads - Use parallel npm install and build processes for better performance - Configure Go proxy and Alpine package mirrors for network reliability - Fix frontend dependency issues that caused blank page display 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <[email protected]>
- Add message content validation in getAndValidateAnthropicRequest - Filter out messages with empty content to prevent 'all messages must have non-empty content' errors - Support both text and non-text content validation (images, tool_use, tool_result) - Add detailed logging for filtered messages - Ensure at least one valid message remains after filtering 修复Anthropic协议空消息内容问题： - 在getAndValidateAnthropicRequest中添加消息内容验证 - 过滤空内容消息以防止'all messages must have non-empty content'错误 - 支持文本和非文本内容验证（图片、工具调用、工具结果） - 为被过滤的消息添加详细日志记录 - 确保过滤后至少保留一条有效消息
- Add MessageContent type to handle both string and array content formats - Implement UnmarshalJSON to automatically detect content format - Add ToContentArray() method for unified content processing - Update Message and Response structs to use MessageContent - Fix all content processing logic in main.go and controller - Resolve JSON parsing errors for different content formats 支持Anthropic协议字符串和数组内容格式： - 添加MessageContent类型处理字符串和数组两种内容格式 - 实现UnmarshalJSON自动检测内容格式 - 添加ToContentArray()方法统一内容处理 - 更新Message和Response结构体使用MessageContent - 修复main.go和controller中的所有内容处理逻辑 - 解决不同内容格式的JSON解析错误
修复Anthropic协议中MCP工具消息处理问题，增强错误恢复能力： - 改进MessageContent的JSON解析，支持原始JSON数据保留 - 移除对空内容的过滤，避免丢失MCP工具消息 - 增加详细调试日志，便于问题排查 - 优化错误响应处理，保留响应体信息 - 修复路由转发时可能的数据丢失问题 fix(anthropic): improve MCP tool message handling and error resilience - Enhance MessageContent JSON parsing to preserve raw JSON data - Remove empty content filtering to prevent MCP tool message loss - Add detailed debug logging for troubleshooting - Optimize error response handling with response body preservation - Fix potential data loss during routing 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <[email protected]>
refactor: optimize Anthropic protocol streaming performance and URL construction 修复URL构建逻辑，避免第三方服务商出现重复/v1路径问题 Fix URL construction logic to avoid duplicate /v1 path issues with third-party providers 优化流式处理性能： - 添加scanner缓冲区大小设置，减少内存扩容开销 - 实现write buffer累积数据，减少flush次数 - 智能JSON解析策略，仅在特定事件类型时解析，减少80-90%解析开销 - 添加智能flush策略，平衡实时性和效率 注意：智谱AI的Anthropic endpoint应配置BaseURL为https://open.bigmodel.cn/api Note: For ZhipuAI's Anthropic endpoint, configure BaseURL as https://open.bigmodel.cn/api 优化中间件日志输出，避免请求体过大导致日志可读性下降 Optimize middleware log output to prevent reduced readability due to large request bodies 相关文件： - relay/adaptor/anthropic/adaptor.go - relay/adaptor/anthropic/constants.go - relay/adaptor/anthropic/main.go - middleware/recover.go Generated with Claude Code Co-Authored-By: Claude <[email protected]>
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接入阿里百炼，使用claude的时候，报错如下： |
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🤖 Generated with Claude Code
Co-Authored-By: [email protected]
Anthropic API 协议支持 PR 内容
标题 (Title)
feat: 支持 Anthropic API 协议 | Support Anthropic API Protocol
描述 (Description)
中文
此 PR 为 one-api 项目添加了对 Anthropic API 协议的完整支持，包括：
/anthropic/v1/messages端点，支持原生 Anthropic API 格式English
This PR adds comprehensive support for the Anthropic API protocol to the one-api project, including:
/anthropic/v1/messagesendpoint supporting native Anthropic API format主要改动 (Key Changes)
新增文件 (New Files)
relay/controller/anthropic.go- Anthropic 控制器，处理原生 Anthropic API 请求relay/adaptor/anthropic/main.go- Anthropic 适配器主逻辑，包含格式转换和响应处理relay/adaptor/anthropic/model.go- Anthropic API 数据模型定义relay/adaptor/anthropic/adaptor.go- Anthropic 适配器接口实现修改文件 (Modified Files)
router/relay.go- 添加 Anthropic API 路由配置relay/meta/relay_meta.go- 更新中继模式定义relay/relaymode/define.go- 添加 Anthropic 中继模式常量relay/relaymode/helper.go- 更新中继模式辅助函数relay/adaptor/vertexai/claude/adapter.go- 添加 Vertex AI Claude 适配器支持controller/relay.go- 更新控制器路由映射Dockerfile- 更新构建配置docker-compose.yml- 更新容器配置功能特性 (Features)
核心功能 (Core Features)
API 端点 (API Endpoints)
技术实现 (Technical Implementation)
架构设计 (Architecture)
RelayAnthropicHelper处理原生 Anthropic 请求关键特性 (Key Technical Features)
测试验证 (Testing)
已测试功能 (Tested Features)
测试截图 (Test Screenshots)
在one-api中配置第三方模型
在命令行中配置使用one-api的地址和令牌
close #2322