How to integrate Affinda MCP with Claude Code

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Introduction

Manage your Affinda 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:

  1. Via Composio Connect - Direct and easiest approach
  2. Via Composio SDK - Programmatic approach with more control

Also integrate Affinda with

Why use Composio?

  • 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.

Connecting Affinda to Claude Code using Composio

1. Add the Composio MCP to Claude

Terminal

2. Start Claude Code

bash
claude

3. Open your MCP list

bash
/mcp

4. Select Composio and click on Authenticate

Select Composio and click Authenticate

5. This will redirect you to the Composio OAuth page. Complete the flow by authorizing Composio and you're all set.

Composio OAuth authorization page
Composio authorization complete
Ask Claude to connect to your account and authenticate via the link

Supported Tools & Triggers

Tools
Add Tag to DocumentsTool to add a tag to multiple documents in a single operation.
Batch Update AnnotationsBatch update multiple document annotations in a single API call.
Create API UserTool to create a new API user within an organization.
Batch Create AnnotationsBatch create multiple document annotations in a single API call.
Create CollectionTool to create a new collection.
Create Data Field For CollectionTool to create a data field for a collection along with a new data point.
Create Data SourceTool to create a custom mapping data source.
Create Data Source ValueTool to add a new value to a mapping data source.
Create DocumentUpload a document to Affinda for parsing and data extraction.
Create Document TypeTool to create a new document type in the specified organization.
Create ExtractorTool to create a new extractor.
Create Document from DataCreate a document from structured resume or job description data for Search & Match.
Create IndexTool to create a new index for search and match functionality.
Create InvitationTool to create a new organization invitation.
Create Job Description SearchSearch through parsed job descriptions using custom criteria or resume matching.
Create Job Description Search Embed URLTool to create and return a signed URL for the embeddable job description search tool.
Create OrganizationTool to create a new organization.
Create RESTHook SubscriptionTool to create a new RESTHook subscription.
Create Resume SearchTool to search through parsed resumes using three methods: match to a job description, match to a resume, or custom criteria.
Create Resume Search Embed URLTool to create and return a signed URL for the embeddable resume search tool.
Create TagCreates a new tag in the specified workspace.
Create Validation ResultCreate a validation result for document annotations in Affinda.
Batch Create Validation ResultsBatch create multiple validation results for document annotations in a single API call.
Create WorkspaceTool to create a new workspace.
Create Workspace MembershipTool to add a user to a workspace by creating a membership.
Batch Delete AnnotationsBatch delete multiple document annotations in a single API call.
Delete CollectionPermanently delete a collection from Affinda by its identifier.
Delete Data SourcePermanently delete a mapping data source from the database by its identifier.
Delete Data Source ValueTool to delete a specific value from a mapping data source.
Delete DocumentTool to delete a specific document by its ID.
Delete Document TypeTool to permanently delete a document type by its identifier.
Delete IndexTool to permanently delete an index from Affinda by its name.
Delete InvitationTool to delete an invitation by its identifier.
Delete OrganizationPermanently deletes an organization from Affinda.
Delete Resthook SubscriptionTool to delete a specific resthook subscription by ID.
Delete TagPermanently delete a tag from Affinda by its ID.
Delete Validation ResultsDelete multiple validation results in a single API call.
Delete WorkspaceTool to delete a specific workspace by its ID.
Delete Workspace MembershipTool to remove a user from a workspace by membership ID.
Get All API UsersTool to retrieve a list of all API users.
Get All Document SplittersTool to get a list of all document splitters.
Get All InvitationsTool to retrieve all invitations you created or sent to you.
Get Organization MembershipsRetrieve all organization memberships across the account.
Get TagsTool to list all tags.
Get All Validation ResultsTool to list validation results for documents.
Get Workspace MembershipsRetrieve all workspace memberships across the account.
Get AnnotationsRetrieves all annotations for a specific document.
Get CollectionTool to retrieve details of a specific collection by its ID.
Get CollectionsTool to retrieve a list of all collections.
Get Data SourceTool to retrieve details of a specific mapping data source by its identifier.
Get Data Source ValueTool to retrieve a specific value from a mapping data source.
Get Data Source ValuesTool to retrieve all values from a mapping data source.
Get DocumentRetrieve full details and parsed data for a specific document by its identifier.
Get Document RedactedTool to retrieve the redacted version of a document as a PDF file.
Get DocumentsTool to retrieve a list of all documents.
Get Document SplitterTool to retrieve details of a specific document splitter by its identifier.
Get Document TypeTool to retrieve details of a specific document type by its ID.
Get Document Type JSON SchemaTool to generate a JSON schema from a document type by its identifier.
Get Document Type Pydantic ModelsTool to generate Pydantic model code from a document type's schema.
Get Document TypesRetrieve all document types accessible to the authenticated user.
Get ExtractorTool to retrieve detailed information about a specific extractor by its identifier.
Get ExtractorsRetrieve all extractors available for an organization.
Get Index DocumentsTool to retrieve all indexed documents for a specific index.
Get InvitationTool to retrieve details of a specific organization invitation by its identifier.
Get Job Description Search ConfigTool to get the configuration for the logged in user's embeddable job description search tool.
Get MappingTool to retrieve a specific mapping by its identifier.
Get OrganizationTool to retrieve details of a specific organization by its ID.
Get Organization MembershipTool to retrieve details of a specific organization membership by its ID.
Get OrganizationsRetrieves all organizations accessible to the authenticated user.
Get Resthook SubscriptionTool to retrieve details of a specific resthook subscription by its ID.
Get RESTHook SubscriptionsTool to retrieve a list of all RESTHook subscriptions.
Get TagTool to retrieve details of a specific tag by its ID.
Get Usage by WorkspaceRetrieves monthly document processing usage statistics for a specific workspace.
Get WorkspaceTool to retrieve details of a specific workspace by its ID.
Get Workspace MembershipTool to retrieve details of a specific workspace membership by its ID.
Get WorkspacesTool to retrieve a list of all workspaces.
List Data PointsTool to retrieve all data points.
List Data SourcesTool to retrieve the list of all custom mapping data sources.
List IndexesTool to retrieve a list of all search indexes.
List MappingsTool to retrieve the list of all custom data mappings.
List Occupation GroupsTool to retrieve the list of searchable occupation groups.
List Resume Search ConfigTool to get the configuration for the logged in user's embeddable resume search tool.
List Resume Search Job Title SuggestionsTool to get job title suggestions based on provided job title(s).
List Resume Search Skill SuggestionsTool to get skill suggestions based on provided skills.
Remove Tag from DocumentsRemove a tag from multiple documents in a single batch operation.
Replace Data Source ValuesTool to completely replace all values in a mapping data source.
Split Document PagesSplit a document into multiple documents by dividing its pages.
Update AnnotationTool to update data of a single annotation in Affinda.
Update CollectionTool to update specific fields of a collection.
Update Data Field For CollectionTool to update a data field configuration for a collection's data point.
Update Data Source ValueTool to update an existing value in a mapping data source.
Update DocumentTool to update specific fields of a document.
Update Document DataUpdate parsed data for a resume or job description document in Affinda.
Update Document TypeTool to update a document type by its identifier.
Update ExtractorTool to update specific fields of an extractor.
Update IndexTool to update the name of an existing search index.
Update InvitationTool to update an organization invitation's role.
Update Job Description Search ConfigTool to update the configuration for the logged in user's embeddable job description search tool.
Update MappingTool to update a specific mapping's settings.
Update OrganizationTool to update specific fields of an organization.
Update Organization MembershipTool to update an organization membership's role.
Update RESTHook SubscriptionTool to update an existing RESTHook subscription.
Update Resume Search ConfigTool to update the configuration for the logged in user's embeddable resume search tool.
Update TagTool to update data of a tag.
Update WorkspaceTool to update specific fields of a workspace.

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

The Affinda MCP server is an implementation of the Model Context Protocol that connects your AI agent and assistants like Claude, Cursor, etc directly to your Affinda account. It provides structured and secure access to your document processing workflows, so your agent can upload files, extract data, organize workspaces, label documents, and automate annotation management on your behalf.

  • AI-powered document upload and extraction: Instantly have your agent upload new documents for parsing and extract structured data from various formats using Affinda's advanced AI models.
  • Workspace and collection management: Let your agent create, group, and organize documents into collections and workspaces, keeping your document processing streamlined and organized.
  • Automated annotation updates: Empower your agent to batch update or modify multiple document annotations in a single request, saving you time on manual corrections.
  • Document tagging and organization: Direct your agent to create tags and label documents, making it easy to categorize and quickly retrieve important files.
  • Effortless cleanup and resource management: Have your agent delete unwanted documents or collections, ensuring your Affinda account stays tidy and relevant at all times.

Connecting Affinda via Composio SDK

Composio SDK is the underlying tech that powers Rube. It's a universal gateway that does everything Rube does but with much more programmatic control. You can programmatically generate an MCP URL with the app you need (here Affinda) for even more tool search precision. It's secure and reliable.

How the Composio SDK works

The Composio SDK follows a three-phase workflow:

  1. Discovery: Searches for tools matching your task and returns relevant toolkits with their details.
  2. Authentication: Checks for active connections. If missing, creates an auth config and returns a connection URL via Auth Link.
  3. Execution: Executes the action using the authenticated connection.

Step-by-step Guide

Prerequisites

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

Install Claude Code

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

To install Claude Code, use one of the following methods based on your operating system:

Set up Claude Code

bash
cd your-project-folder
claude

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
Claude Code initial setup showing sign-in prompt
Claude Code terminal after successful login

Set up environment variables

bash
COMPOSIO_API_KEY=your_composio_api_key_here
USER_ID=your_user_id_here

Create a .env file in your project root with the following variables:

  • COMPOSIO_API_KEY authenticates with Composio (get it from Composio dashboard)
  • USER_ID identifies the user for session management (use any unique identifier)

Install Composio library

pip install composio-core python-dotenv

Install the Composio Python library to create MCP sessions.

  • composio-core provides the core Composio functionality
  • python-dotenv loads environment variables from your .env file

Generate Composio MCP URL

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=["affinda"],
)

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 affinda-composio "{COMPOSIO_MCP_URL}" --headers "X-API-Key:{COMPOSIO_API_KEY}"')

Create a script to generate a Composio MCP URL for Affinda. This URL will be used to connect Claude Code to Affinda.

What's happening:

  • We import the Composio client and load environment variables
  • Create a Composio instance with your API key
  • Call create() to create a Tool Router session for Affinda
  • The returned mcp.url is the MCP server URL that Claude Code will use
  • The script prints this URL so you can copy it

Run the script and copy the MCP URL

python generate_mcp_url.py

Run your Python script to generate the MCP URL.

  • The script connects to Composio and creates a Tool Router session
  • It prints the MCP URL and the exact command you need to run
  • Copy the entire claude mcp add command from the output

Add Affinda MCP to Claude Code

bash
claude mcp add --transport http affinda-composio "YOUR_MCP_URL_HERE" --headers "X-API-Key:YOUR_COMPOSIO_API_KEY"

# Then restart Claude Code
exit
claude

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 (affinda-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.

Verify the installation

bash
claude mcp list

Check that your Affinda MCP server is properly configured.

  • This command lists all MCP servers registered with Claude Code
  • You should see your affinda-composio entry in the list
  • This confirms that Claude Code can now access Affinda tools

If everything is wired up, you should see your affinda-composio entry listed:

Claude Code MCP list showing the toolkit MCP server

Authenticate Affinda

The first time you try to use Affinda tools, you'll be prompted to authenticate.

  • Claude Code will detect that you need to authenticate with Affinda
  • It will show you an authentication link
  • Open the link in your browser (or copy/paste it)
  • Complete the Affinda authorization flow
  • Return to the terminal and start using Affinda through Claude Code

Once authenticated, you can ask Claude Code to perform Affinda operations in natural language. For example:

  • "Extract invoice data from uploaded PDF"
  • "Delete a document no longer needed"
  • "Create a new tag for HR documents"

Complete Code

Here's the complete code to get you started with Affinda and Claude Code:

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=["affinda"],
)

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 affinda-composio "{COMPOSIO_MCP_URL}" --headers "X-API-Key:{COMPOSIO_API_KEY}"')

Conclusion

You've successfully integrated Affinda with Claude Code using Composio's MCP server. Now you can interact with Affinda directly from your terminal using natural language commands.

Key features of this setup:

  • Terminal-native experience without switching contexts
  • Natural language commands for Affinda 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 Affinda 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 Affinda MCP Agent with another framework

FAQ

What are the differences in Tool Router MCP and Affinda MCP?

With a standalone Affinda MCP server, the agents and LLMs can only access a fixed set of Affinda tools tied to that server. However, with the Composio Tool Router, agents can dynamically load tools from Affinda 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 Affinda tools.

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

Yes, absolutely. You can configure which Affinda 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 Affinda data and credentials are handled as safely as possible.

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