以编程方式使用文档

Composio 是一个集成平台,提供对 500+ 工具的访问,涵盖 GitHub、Slack、Notion 等热门应用。它使 AI 代理能够通过统一 API 与外部服务交互,处理身份验证、权限和事件驱动的工作流。

概述

集成详情

可序列化Python 支持版本
Composio@composio/langchain!npm 版本

工具特性

  • 500+ 工具访问: 预构建集成,包括 GitHub、Slack、Gmail、Jira、Notion 等
  • 身份验证管理: 处理 OAuth 流程、API 密钥和身份验证状态
  • 事件驱动工作流: 基于外部事件触发代理(新 Slack 消息、GitHub 问题等)
  • 细粒度权限: 按用户控制工具访问和数据暴露
  • 自定义工具支持: 添加专有 API 和内部工具

设置

集成位于 @composio/langchain package.

npm install @composio/langchain @composio/core

或使用其他包管理器:

yarn add @composio/langchain @composio/core
# or
pnpm add @composio/langchain @composio/core

凭据

您需要一个 Composio API 密钥。在以下网址免费注册 composio.dev 获取您的 API 密钥。

dotenv.config();

// Set your Composio API key
process.env.COMPOSIO_API_KEY = 'your_api_key_here';

设置 LangSmith 进行追踪也很有帮助:

// process.env.LANGSMITH_API_KEY = 'your_langsmith_key';
// process.env.LANGSMITH_TRACING = 'true';

实例化

使用 LangChain 提供程序初始化 Composio,并从特定工具包获取工具。每个工具包代表一个服务(如 GitHub、Slack),具有多个工具(可执行的操作)。

// Initialize Composio with LangChain provider
const composio = new Composio({
    apiKey: process.env.COMPOSIO_API_KEY,
    provider: new LangchainProvider(),
});

// Get tools from specific toolkits
const tools = await composio.tools.get('default', 'GITHUB');

console.log(`Loaded ${tools.length} tools from GitHub toolkit`);

可用工具包

Composio 为各种服务提供工具包:

生产力: GitHub、Slack、Gmail、Jira、Notion、Asana、Trello、ClickUp **通信**: Discord、Telegram、WhatsApp、Microsoft Teams **开发**: GitLab、Bitbucket、Linear、Sentry **数据与分析**: Google Sheets、Airtable、HubSpot、Salesforce **以及 100+ 更多...**

调用

从多个工具包获取工具

您可以从多个服务加载工具:

// Get tools from multiple toolkits
const tools = await composio.tools.get('default', ['GITHUB', 'SLACK', 'GMAIL']);

获取特定工具

您可以加载特定工具,而不是整个工具包:

// Get specific tools by name
const tools = await composio.tools.get('default', {
    tools: ['GITHUB_CREATE_ISSUE', 'SLACK_SEND_MESSAGE']
});

用户特定工具

Composio 支持多用户场景,支持用户特定的身份验证:

// Get tools for a specific user
// This user must have authenticated their accounts first
const tools = await composio.tools.get('user_123', 'GITHUB');

在智能体中使用

这是一个使用 Composio 工具与 LangGraph 智能体交互的完整示例:

// Initialize Composio
const composio = new Composio({
    apiKey: process.env.COMPOSIO_API_KEY,
    provider: new LangchainProvider(),
});

// Fetch the tools
console.log('🔄 Fetching the tools...');
const tools = await composio.tools.get('default', 'HACKERNEWS_GET_USER');

// Define the tools for the agent to use
const toolNode = new ToolNode(tools);

// Create a model and give it access to the tools
const model = new ChatOpenAI({
    model: 'gpt-5',
}).bindTools(tools);

// Define the function that determines whether to continue or not
function shouldContinue({ messages }: typeof MessagesAnnotation.State) {
    const lastMessage = messages[messages.length - 1] as AIMessage;

    // If the LLM makes a tool call, then we route to the "tools" node
    if (lastMessage.tool_calls?.length) {
        return 'tools';
    }

    // Otherwise, we stop (reply to the user)
    return '__end__';
}

// Define the function that calls the model
async function callModel(state: typeof MessagesAnnotation.State) {
    console.log('🔄 Calling the model...');
    const response = await model.invoke(state.messages);
    return { messages: [response] };
}

// Define a new graph
const workflow = new StateGraph(MessagesAnnotation)
    .addNode('agent', callModel)
    .addEdge('__start__', 'agent')
    .addNode('tools', toolNode)
    .addEdge('tools', 'agent')
    .addConditionalEdges('agent', shouldContinue);

// Compile the graph
const app = workflow.compile();

// Use the agent
const finalState = await app.invoke({
    messages: [new HumanMessage('Find the details of the user `pg` on HackerNews')]
});

console.log('✅ Message received from the model');
console.log(finalState.messages[finalState.messages.length - 1].content);

// Continue the conversation
const nextState = await app.invoke({
    messages: [...finalState.messages, new HumanMessage('what about haxzie')]
});

console.log('✅ Message received from the model');
console.log(nextState.messages[nextState.messages.length - 1].content);

与 GitHub 工具包配合使用

这是一个给 GitHub 仓库加星标的示例:

// Initialize Composio
const composio = new Composio({
    apiKey: process.env.COMPOSIO_API_KEY,
    provider: new LangchainProvider(),
});

// Get GitHub tools
const tools = await composio.tools.get('default', 'GITHUB');

// Create model
const model = new ChatOpenAI({
    model: 'gpt-5',
});

// Create agent
const agent = createReactAgent({
    llm: model,
    tools: tools,
});

// Execute task
const result = await agent.invoke({
    messages: [
        {
            role: 'user',
            content: 'Star the repository composiohq/composio on GitHub'
        }
    ]
});

console.log(result.messages[result.messages.length - 1].content);

身份验证设置

在使用需要身份验证的工具之前,用户需要连接他们的账户:

const composio = new Composio({
    apiKey: process.env.COMPOSIO_API_KEY
});

// Get authentication URL for a user
const authConnection = await composio.integrations.create({
    userId: 'user_123',
    integration: 'github'
});

console.log(`Authenticate at: ${authConnection.redirectUrl}`);

// After authentication, the user's connected account will be available
// and tools will work with their credentials

多用户场景

对于有多用户的应用程序:

// Each user authenticates their own accounts
const toolsUser1 = await composio.tools.get('user_1', 'GITHUB');
const toolsUser2 = await composio.tools.get('user_2', 'GITHUB');

// Tools will use the respective user's credentials
// User 1's agent will act on User 1's GitHub account
const agent1 = createAgent(model, toolsUser1);

// User 2's agent will act on User 2's GitHub account
const agent2 = createAgent(model, toolsUser2);

事件驱动的工作流

Composio 支持基于外部事件触发智能体。当连接的应用中发生事件时(如新的 GitHub 提交或 Slack 消息),触发器会自动向您的应用程序发送结构化数据。

创建触发器

首先,创建一个用于监控事件的触发器:

const composio = new Composio({ apiKey: 'your_api_key' });
const userId = 'user_123';

// Check what configuration is required for the trigger
const triggerType = await composio.triggers.getType('GITHUB_COMMIT_EVENT');
console.log(triggerType.config);

// Create trigger with required configuration
const trigger = await composio.triggers.create(
    userId,
    'GITHUB_COMMIT_EVENT',
    {
        triggerConfig: {
            owner: 'composiohq',
            repo: 'composio'
        }
    }
);

console.log(`Trigger created: ${trigger.triggerId}`);

订阅触发器(开发环境)

对于本地开发和原型设计,您可以直接订阅触发器:

const composio = new Composio({ apiKey: 'your_api_key' });

// Subscribe to trigger events
composio.triggers.subscribe(
    (data) => {
        console.log(`New commit detected:`, data);
        // Process the event with your agent
        // ... invoke your agent with the task
    },
    {
        triggerId: 'your_trigger_id',
        // You can also filter by:
        // userId: 'user@acme.com',
        // toolkits: ['github', 'slack'],
        // triggerSlug: ["GITHUB_COMMIT_EVENT"],
        // authConfigId: "ac_1234567890"
    }
);

// Note: For production, use webhooks instead

类型安全的触发器处理

为了更好的类型安全,请定义数据类型:

// Define type-safe payload

    action: 'created';
    repository_id: number;
    repository_name: string;
    repository_url: string;
    starred_at: string;
    starred_by: string;
};

// Type-safe handler
function handleGitHubStarAddedEvent(event: TriggerEvent) {
    console.log(`⭐ ${event.data.repository_name} starred by ${event.data.starred_by}`);
}

Webhooks(生产环境)

对于生产环境,请在 Composio 仪表板中配置 Webhooks:

    if (req.method !== 'POST') {
        return res.status(405).json({ error: 'Method not allowed' });
    }

    try {
        const payload = req.body;

        console.log('Received trigger event:', payload);

        // Process the event with your agent
        if (payload.triggerSlug === 'GITHUB_COMMIT_EVENT') {
            const commitData = payload.payload;
            // ... invoke your agent with commitData
        }

        res.status(200).json({ status: 'success' });
    } catch (error) {
        console.error('Error processing webhook:', error);
        res.status(500).json({ error: 'Internal server error' });
    }
}

更多详细信息,请参阅 Composio 触发器文档

高级功能

自定义工具

Composio 允许您创建可与内置工具配合使用的自定义工具。有两种类型:

独立工具

不需要身份验证的简单工具:

const composio = new Composio({
    apiKey: process.env.COMPOSIO_API_KEY
});

const tool = await composio.tools.createCustomTool({
    slug: 'CALCULATE_SQUARE',
    name: 'Calculate Square',
    description: 'Calculates the square of a number',
    inputParams: z.object({
        number: z.number().describe('The number to calculate the square of'),
    }),
    execute: async input => {
        const { number } = input;
        return {
            data: { result: number * number },
            error: null,
            successful: true,
        };
    },
});

// Use with your agent
const allTools = [...tools, tool];

基于工具包的工具

需要身份验证并可使用工具包凭据的工具:

const composio = new Composio({
    apiKey: process.env.COMPOSIO_API_KEY
});

const tool = await composio.tools.createCustomTool({
    slug: 'GITHUB_STAR_COMPOSIOHQ_REPOSITORY',
    name: 'Github star composio repositories',
    toolkitSlug: 'github',
    description: 'Star any specified repo of `composiohq` user',
    inputParams: z.object({
        repository: z.string().describe('The repository to star'),
        page: z.number().optional().describe('Pagination page number'),
        customHeader: z.string().optional().describe('Custom header'),
    }),
    execute: async (input, connectionConfig, executeToolRequest) => {
        // This method makes authenticated requests to the relevant API
        // Composio will automatically inject the baseURL
        const result = await executeToolRequest({
            endpoint: `/user/starred/composiohq/${input.repository}`,
            method: 'PUT',
            body: {},
            // Add custom headers or query parameters
            parameters: [
                // Add query parameters
                {
                    name: 'page',
                    value: input.page?.toString() || '1',
                    in: 'query',
                },
                // Add custom headers
                {
                    name: 'x-custom-header',
                    value: input.customHeader || 'default-value',
                    in: 'header',
                },
            ],
        });
        return result;
    },
});

执行自定义工具:

const composio = new Composio({
    apiKey: process.env.COMPOSIO_API_KEY
});

const result = await composio.tools.execute('TOOL_SLUG', {
    arguments: {
        // Tool input parameters
    },
    userId: 'user-id',
    connectedAccountId: 'optional-account-id', // Required for toolkit-based tools
});

更多详细信息,请参阅 Composio 自定义工具文档

细粒度权限

控制工具可以执行的操作:

// Get tools with specific permissions
const tools = await composio.tools.get('default', 'GITHUB', {
    // Limit to read-only operations
    permissions: ['read']
});

API 参考

有关所有 Composio 功能和配置的详细文档,请访问: - Composio 文档 - LangChain 提供商指南 - 可用工具和操作