# How to integrate Affinity MCP with Claude Code

```json
{
  "title": "How to integrate Affinity MCP with Claude Code",
  "toolkit": "Affinity",
  "toolkit_slug": "affinity",
  "framework": "Claude Code",
  "framework_slug": "claude-code",
  "url": "https://composio.dev/toolkits/affinity/framework/claude-code",
  "markdown_url": "https://composio.dev/toolkits/affinity/framework/claude-code.md",
  "updated_at": "2026-05-12T10:00:19.548Z"
}
```

## Introduction

Manage your Affinity directly from Claude Code with zero worries about OAuth hassles, API-breaking issues, or reliability and security concerns.
You can do this in two different ways:
- Via [Composio Connect](https://dashboard.composio.dev/login?utm_source=toolkits&utm_medium=framework_template&utm_campaign=claude-code&utm_content=composio_connect&next=%2F~%2Forg%2Fconnect%2Fclients%2Fclaude-code) - Direct and easiest approach
- Via [Composio SDK](https://docs.composio.dev/docs?utm_source=toolkits&utm_medium=framework_template&utm_campaign=claude-code&utm_content=composio_sdk) - Programmatic approach with more control

## Also integrate Affinity with

- [OpenAI Agents SDK](https://composio.dev/toolkits/affinity/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/affinity/framework/claude-agents-sdk)
- [Claude Cowork](https://composio.dev/toolkits/affinity/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/affinity/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/affinity/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/affinity/framework/hermes-agent)
- [CLI](https://composio.dev/toolkits/affinity/framework/cli)
- [Google ADK](https://composio.dev/toolkits/affinity/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/affinity/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/affinity/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/affinity/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/affinity/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/affinity/framework/crew-ai)

## TL;DR

- Only one MCP URL to connect multiple apps with Claude Code with zero auth hassles.
- Programmatic tool calling allows LLMs to write its code in a remote workbench to handle complex tool chaining. Reduces to-and-fro with LLMs for frequent tool calling.
- Handling Large tool responses out of LLM context to minimize context rot.
- Dynamic just-in-time access to 20,000 tools across 1000+ other Apps for cross-app workflows. It loads the tools you need, so LLMs aren't overwhelmed by tools you don't need.

## Connect Affinity to Claude Code

### Connecting Affinity to Claude Code using Composio
1. Add the Composio MCP to Claude

```bash
claude mcp add --scope user --transport http composio https://connect.composio.dev/mcp
```

## What is Claude Code?

Claude Code is Anthropic's command line developer tool that lets you use Claude directly inside your terminal. Instead of switching between your editor, browser, and chat, you can stay in your project folder and ask Claude to help you build, debug, refactor, and understand code right where you're working.
Key features include:
- Terminal-Native Experience: Work with Claude directly in your command line without switching contexts
- MCP Support: Built-in support for Model Context Protocol servers to extend Claude's capabilities
- Project Context: Claude understands your project structure and can read, write, and modify files
- Interactive Development: Ask questions, debug code, and get help in real-time while coding
- Multi-Platform: Works on macOS, Linux, WSL, and Windows

## What is the Affinity MCP server, and what's possible with it?

The Affinity MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Affinity account. It provides structured and secure access to your deal, company, and contact data, so your agent can analyze lists, fetch opportunity details, extract company insights, and organize people or organizations on your behalf.
- Company data extraction and analysis: Let your agent retrieve detailed company profiles, summarize list entries, and pull custom field data for deeper insights and reporting.
- Opportunity pipeline management: Automatically fetch and review all ongoing opportunities, track changes, and surface high-priority deals for follow-up.
- List and view organization: Ask your agent to access entries across lists or saved views, aggregating metadata and field values for efficient CRM workflows.
- Contact and relationship intelligence: Effortlessly browse, analyze, and summarize person records, including their list memberships, activity, and custom fields.
- Automated CRM reporting: Generate summaries, export data, and monitor changes across companies, people, and opportunities to keep your pipeline up-to-date and actionable.

## Supported Tools

| Tool slug | Name | Description |
|---|---|---|
| `AFFINITY_GET_A_COMPANY_S_LIST_ENTRIES` | Get a company s list entries | Summarize company data across all lists, including list-specific fields and metadata like creation date and author. Access requires "Export data from Lists" permission. |
| `AFFINITY_GET_A_COMPANY_S_LISTS` | Get a company s lists | Returns metadata for all the Lists on which the given Company appears. |
| `AFFINITY_GET_ALL_COMPANIES` | Get all companies | Affinity API allows paginated access to company info and custom fields. Use `fieldIds` or `fieldTypes` to specify data in a request. Retrieve field IDs/Types via GET `/v2/companies/fields`. Export permission needed. |
| `AFFINITY_GET_ALL_LIST_ENTRIES_ON_A_LIST` | Get all list entries on a list | Access and export essential data and metadata for Companies, Persons, or Opportunities from a List, specifying data via `fieldIds` or `fieldTypes`. "Export data from Lists" permission is necessary. |
| `AFFINITY_GET_ALL_LIST_ENTRIES_ON_A_SAVED_VIEW` | Get all list entries on a saved view | Use the endpoint to access rows in a Saved View with specific filters and selected fields from a web app. It doesn't maintain sort order, supports only sheet-type views, and requires export permissions. |
| `AFFINITY_GET_ALL_OPPORTUNITIES` | Get all opportunities | Pagination through Opportunities in Affinity yields basic info but excludes field data. For field data, use specified GET endpoints. "Export data from Lists" permission needed. |
| `AFFINITY_GET_ALL_PERSONS` | Get all persons | The Affinity API offers paginated access to Person data using `fieldIds` or `fieldTypes`. Bulk extraction needs special permissions and supports multiple parameters. |
| `AFFINITY_GET_A_PERSON_S_LIST_ENTRIES` | Get a person s list entries | Summary: Browse rows for a Person in all Lists, showing field data and entry metadata like creation time and author. Requires "Export data from Lists" permission. |
| `AFFINITY_GET_A_PERSON_S_LISTS` | Get a person s lists | Returns metadata for all the Lists on which the given Person appears. |
| `AFFINITY_GET_A_SINGLE_COMPANY` | Get a single company | Retrieve basic company info and specific field data by using `fieldIds` or `fieldTypes` parameters. Multiple fields can be queried. No field data if parameters aren't specified. Requires "Export All Organizations directory" permission. |
| `AFFINITY_GET_A_SINGLE_OPPORTUNITY` | Get a single opportunity | Get basic details about an Opportunity without field data via provided endpoints. Field data requires using specific list entry APIs and the "Export data from Lists" permission. |
| `AFFINITY_GET_A_SINGLE_PERSON` | Get a single person | Use GET `/v2/persons/fields` with `fieldIds` or `fieldTypes` for detailed data; basic info by default. Request multiple fields at once. "Export All People" permission needed. |
| `AFFINITY_GET_CURRENT_USER` | Get current user | Returns metadata about the current user. |
| `AFFINITY_GET_METADATA_ON_ALL_LISTS` | Get metadata on all lists | Returns metadata on Lists. |
| `AFFINITY_GET_METADATA_ON_A_SINGLE_LIST` | Get metadata on a single list | Returns metadata on a single List. |
| `AFFINITY_GET_METADATA_ON_A_SINGLE_LIST_S_FIELDS` | Get metadata on a single list s fields | Returns metadata on the Fields available on a single List. Use the returned Field IDs to request field data from the GET `/v2/lists/{listId}/list-entries` endpoint. |
| `AFFINITY_GET_METADATA_ON_A_SINGLE_SAVED_VIEW` | Get metadata on a single saved view | Returns metadata on a single Saved View. |
| `AFFINITY_GET_METADATA_ON_COMPANY_FIELDS` | Get metadata on company fields | Returns metadata on non-list-specific Company Fields. Use the returned Field IDs to request field data from the GET `/v2/companies` and GET `/v2/companies/{id}` endpoints. |
| `AFFINITY_GET_METADATA_ON_PERSON_FIELDS` | Get metadata on person fields | Returns metadata on non-list-specific Person Fields. Use the returned Field IDs to request field data from the GET `/v2/persons` and GET `/v2/persons/{id}` endpoints. |
| `AFFINITY_GET_METADATA_ON_SAVED_VIEWS` | Get metadata on saved views | Returns metadata on the Saved Views on a List. |

## Supported Triggers

None listed.

## Creating MCP Server - Stand-alone vs Composio SDK

The Affinity MCP server is an implementation of the Model Context Protocol that connects Claude Code (and other AI assistants like Claude and Cursor) directly to your Affinity account. It provides structured and secure access so Claude can perform Affinity operations on your behalf.
With Composio's managed implementation, you don't have to create your own developer app. For production, if you're building an end product, we recommend using your own credentials. The managed server helps you prototype fast and go from 0-1 faster.

## Step-by-step Guide

### 1. Prerequisites

Before starting, make sure you have:
- Claude Pro, Max, or API billing enabled Anthropic account
- Composio API Key
- A Affinity account
- Basic knowledge of Python or TypeScript

### 1. Install Claude Code

To install Claude Code, use one of the following methods based on your operating system:
```bash
# macOS, Linux, WSL
curl -fsSL https://claude.ai/install.sh | bash

# Windows PowerShell
irm https://claude.ai/install.ps1 | iex

# Windows CMD
curl -fsSL https://claude.ai/install.cmd -o install.cmd && install.cmd && del install.cmd
```

### 2. Set up Claude Code

Open a terminal, go to your project folder, and start Claude Code:
- Claude Code will open in your terminal
- Follow the prompts to sign in with your Anthropic account
- Complete the authentication flow
- Once authenticated, you can start using Claude Code
```bash
cd your-project-folder
claude
```

### 3. Set up environment variables

Create a .env file in your project root with the following variables:
- COMPOSIO_API_KEY authenticates with Composio (get it from [Composio dashboard](https://dashboard.composio.dev/login?utm_source=toolkits&utm_medium=framework_template&utm_campaign=claude-code&utm_content=api_key&next=%2F~%2Forg%2Fconnect%2Fclients%2Fclaude-code))
- USER_ID identifies the user for session management (use any unique identifier)
```bash
COMPOSIO_API_KEY=your_composio_api_key_here
USER_ID=your_user_id_here
```

### 4. Install Composio library

No description provided.
```python
pip install composio-core python-dotenv
```

```typescript
npm install @composio/core dotenv
```

### 5. Generate Composio MCP URL

No description provided.
```python
import os
from composio import Composio
from dotenv import load_dotenv

load_dotenv()

COMPOSIO_API_KEY = os.getenv("COMPOSIO_API_KEY")
USER_ID = os.getenv("USER_ID")

composio_client = Composio(api_key=COMPOSIO_API_KEY)

composio_session = composio_client.create(
    user_id=USER_ID,
    toolkits=["affinity"],
)

COMPOSIO_MCP_URL = composio_session.mcp.url

print(f"MCP URL: {COMPOSIO_MCP_URL}")
print(f"\nUse this command to add to Claude Code:")
print(f'claude mcp add --transport http affinity-composio "{COMPOSIO_MCP_URL}" --headers "X-API-Key:{COMPOSIO_API_KEY}"')
```

```typescript
import 'dotenv/config';
import { Composio } from '@composio/core';

const { COMPOSIO_API_KEY, USER_ID } = process.env;

if (!COMPOSIO_API_KEY || !USER_ID) {
  throw new Error('COMPOSIO_API_KEY and USER_ID required in .env');
}

const composioClient = new Composio({ apiKey: COMPOSIO_API_KEY });

const composioSession = await composioClient.create(USER_ID, {
  toolkits: ['affinity'],
});

const composioMcpUrl = composioSession?.mcp.url;

console.log(`MCP URL: ${composioMcpUrl}`);
console.log(`\nUse this command to add to Claude Code:`);
console.log(`claude mcp add --transport http affinity-composio "${composioMcpUrl}" --headers "X-API-Key:${COMPOSIO_API_KEY}"`);
```

### 6. Run the script and copy the MCP URL

No description provided.
```python
python generate_mcp_url.py
```

```typescript
node --loader ts-node/esm generate_mcp_url.ts
# or if using tsx
tsx generate_mcp_url.ts
```

### 7. Add Affinity MCP to Claude Code

In your terminal, add the MCP server using the command from the previous step. The command format is:
- claude mcp add registers a new MCP server with Claude Code
- --transport http specifies that this is an HTTP-based MCP server
- The server name (affinity-composio) is how you'll reference it
- The URL points to your Composio Tool Router session
- --headers includes your Composio API key for authentication
After running the command, close the current Claude Code session and start a new one for the changes to take effect.
```bash
claude mcp add --transport http affinity-composio "YOUR_MCP_URL_HERE" --headers "X-API-Key:YOUR_COMPOSIO_API_KEY"

# Then restart Claude Code
exit
claude
```

### 8. Verify the installation

Check that your Affinity MCP server is properly configured.
- This command lists all MCP servers registered with Claude Code
- You should see your affinity-composio entry in the list
- This confirms that Claude Code can now access Affinity tools
If everything is wired up, you should see your affinity-composio entry listed:
```bash
claude mcp list
```

### 9. Authenticate Affinity

The first time you try to use Affinity tools, you'll be prompted to authenticate.
- Claude Code will detect that you need to authenticate with Affinity
- It will show you an authentication link
- Open the link in your browser (or copy/paste it)
- Complete the Affinity authorization flow
- Return to the terminal and start using Affinity through Claude Code
Once authenticated, you can ask Claude Code to perform Affinity operations in natural language. For example:
- "List all companies added this week"
- "Show all opportunities in active pipeline"
- "Get recent contacts linked to Acme Corp"

## Complete Code

```python
import os
from composio import Composio
from dotenv import load_dotenv

load_dotenv()

COMPOSIO_API_KEY = os.getenv("COMPOSIO_API_KEY")
USER_ID = os.getenv("USER_ID")

composio_client = Composio(api_key=COMPOSIO_API_KEY)

composio_session = composio_client.create(
    user_id=USER_ID,
    toolkits=["affinity"],
)

COMPOSIO_MCP_URL = composio_session.mcp.url

print(f"MCP URL: {COMPOSIO_MCP_URL}")
print(f"\nUse this command to add to Claude Code:")
print(f'claude mcp add --transport http affinity-composio "{COMPOSIO_MCP_URL}" --headers "X-API-Key:{COMPOSIO_API_KEY}"')
```

```typescript
import 'dotenv/config';
import { Composio } from '@composio/core';

const { COMPOSIO_API_KEY, USER_ID } = process.env;

if (!COMPOSIO_API_KEY || !USER_ID) {
  throw new Error('COMPOSIO_API_KEY and USER_ID required in .env');
}

const composioClient = new Composio({ apiKey: COMPOSIO_API_KEY });

const composioSession = await composioClient.create(USER_ID, {
  toolkits: ['affinity'],
});

const composioMcpUrl = composioSession?.mcp.url;

console.log(`MCP URL: ${composioMcpUrl}`);
console.log(`\nUse this command to add to Claude Code:`);
console.log(`claude mcp add --transport http affinity-composio "${composioMcpUrl}" --headers "X-API-Key:${COMPOSIO_API_KEY}"`);
```

## Conclusion

You've successfully integrated Affinity with Claude Code using Composio's MCP server. Now you can interact with Affinity directly from your terminal using natural language commands.
Key features of this setup:
- Terminal-native experience without switching contexts
- Natural language commands for Affinity operations
- Secure authentication through Composio's managed MCP
- Tool Router for dynamic tool discovery and execution
Next steps:
- Try asking Claude Code to perform various Affinity operations
- Add more toolkits to your Tool Router session for multi-app workflows
- Integrate this setup into your development workflow for increased productivity
You can extend this by adding more toolkits, implementing custom workflows, or building automation scripts that leverage Claude Code's capabilities.

## How to build Affinity MCP Agent with another framework

- [OpenAI Agents SDK](https://composio.dev/toolkits/affinity/framework/open-ai-agents-sdk)
- [Claude Agent SDK](https://composio.dev/toolkits/affinity/framework/claude-agents-sdk)
- [Claude Cowork](https://composio.dev/toolkits/affinity/framework/claude-cowork)
- [Codex](https://composio.dev/toolkits/affinity/framework/codex)
- [OpenClaw](https://composio.dev/toolkits/affinity/framework/openclaw)
- [Hermes](https://composio.dev/toolkits/affinity/framework/hermes-agent)
- [CLI](https://composio.dev/toolkits/affinity/framework/cli)
- [Google ADK](https://composio.dev/toolkits/affinity/framework/google-adk)
- [LangChain](https://composio.dev/toolkits/affinity/framework/langchain)
- [Vercel AI SDK](https://composio.dev/toolkits/affinity/framework/ai-sdk)
- [Mastra AI](https://composio.dev/toolkits/affinity/framework/mastra-ai)
- [LlamaIndex](https://composio.dev/toolkits/affinity/framework/llama-index)
- [CrewAI](https://composio.dev/toolkits/affinity/framework/crew-ai)

## Related Toolkits

- [Hubspot](https://composio.dev/toolkits/hubspot) - HubSpot is an all-in-one marketing, sales, and customer service platform. It lets teams nurture leads, automate outreach, and track every customer interaction in one place.
- [Pipedrive](https://composio.dev/toolkits/pipedrive) - Pipedrive is a sales management platform offering pipeline visualization, lead tracking, and workflow automation. It helps sales teams keep deals moving forward efficiently and never miss a follow-up.
- [Salesforce](https://composio.dev/toolkits/salesforce) - Salesforce is a leading CRM platform that helps businesses manage sales, service, and marketing. It centralizes customer data, enabling teams to drive growth and build strong relationships.
- [Apollo](https://composio.dev/toolkits/apollo) - Apollo is a CRM and lead generation platform that helps businesses discover contacts and manage sales pipelines. Use it to streamline customer outreach and track your deals from one place.
- [Attio](https://composio.dev/toolkits/attio) - Attio is a customizable CRM and workspace for managing your team's relationships and workflows. It helps teams organize contacts, automate tasks, and collaborate more efficiently.
- [Acculynx](https://composio.dev/toolkits/acculynx) - AccuLynx is a cloud-based roofing business management software for contractors. It streamlines project tracking, lead management, and document sharing.
- [Addressfinder](https://composio.dev/toolkits/addressfinder) - Addressfinder is a data quality platform for verifying addresses, emails, and phone numbers. It helps you ensure accurate customer and contact data every time.
- [Agencyzoom](https://composio.dev/toolkits/agencyzoom) - AgencyZoom is a sales and performance platform built for P&C insurance agencies. It helps agents boost sales, retain clients, and analyze producer results in one place.
- [Bettercontact](https://composio.dev/toolkits/bettercontact) - Bettercontact is a smart contact enrichment tool for finding emails and phone numbers. It helps boost lead generation with automated, waterfall search across multiple sources.
- [Blackbaud](https://composio.dev/toolkits/blackbaud) - Blackbaud provides cloud-based software for nonprofits, schools, and healthcare institutions. It streamlines fundraising, donor management, and mission-driven operations.
- [Brilliant directories](https://composio.dev/toolkits/brilliant_directories) - Brilliant Directories is an all-in-one platform for building and managing online membership communities and business directories. It streamlines listings, member management, and engagement tools into a single, easy interface.
- [Capsule crm](https://composio.dev/toolkits/capsule_crm) - Capsule CRM is a user-friendly CRM platform for managing contacts and sales pipelines. It helps businesses organize relationships and streamline their sales process efficiently.
- [Centralstationcrm](https://composio.dev/toolkits/centralstationcrm) - CentralStationCRM is an easy-to-use CRM software focused on collaboration and long-term customer relationships. It helps teams manage contacts, deals, and communications all in one place.
- [Clientary](https://composio.dev/toolkits/clientary) - Clientary is a platform for managing clients, invoices, projects, proposals, and more. It streamlines client work and saves you serious admin time.
- [Close](https://composio.dev/toolkits/close) - Close is a CRM platform built for sales teams, combining calling, email automation, and predictive dialers. It streamlines sales workflows and boosts productivity with all-in-one communication tools.
- [Dropcontact](https://composio.dev/toolkits/dropcontact) - Dropcontact is a B2B email finder and data enrichment service for professionals. It delivers verified email addresses and enriches contact info with up-to-date data.
- [Dynamics365](https://composio.dev/toolkits/dynamics365) - Dynamics 365 is Microsoft's platform combining CRM, ERP, and productivity apps. It streamlines sales, marketing, service, and operations in one place.
- [Espocrm](https://composio.dev/toolkits/espocrm) - EspoCRM is an open-source web application for managing customer relationships. It helps businesses organize contacts, track leads, and streamline their sales process.
- [Fireberry](https://composio.dev/toolkits/fireberry) - Fireberry is a CRM platform that streamlines customer and sales management. It helps businesses organize contacts, automate sales, and integrate with other business tools.
- [Firmao](https://composio.dev/toolkits/firmao) - Firmao is a business information platform offering company, industry, and market data. Use it to quickly research firms and gain competitive market insights.

## Frequently Asked Questions

### What are the differences in Tool Router MCP and Affinity MCP?

With a standalone Affinity MCP server, the agents and LLMs can only access a fixed set of Affinity tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Affinity and many other apps based on the task at hand, all through a single MCP endpoint.

### Can I use Tool Router MCP with Claude Code?

Yes, you can. Claude Code fully supports MCP integration. You get structured tool calling, message history handling, and model orchestration while Tool Router takes care of discovering and serving the right Affinity tools.

### Can I manage the permissions and scopes for Affinity while using Tool Router?

Yes, absolutely. You can configure which Affinity scopes and actions are allowed when connecting your account to Composio. You can also bring your own OAuth credentials or API configuration so you keep full control over what the agent can do.

### How safe is my data with Composio Tool Router?

All sensitive data such as tokens, keys, and configuration is fully encrypted at rest and in transit. Composio is SOC 2 Type 2 compliant and follows strict security practices so your Affinity data and credentials are handled as safely as possible.

---
[See all toolkits](https://composio.dev/toolkits) · [Composio docs](https://docs.composio.dev/llms.txt)