beginner⏱️ 14-24 minutes📅 Updated June 2026

Step-by-step guide to integrate Adfin MCP server with Klavis AI. Includes credit control management and invoice creation and management.

Adfin + Klavis AI: Complete MCP Integration

Adfin is a MCP server that The only platform you need to get paid - all payments in one place, invoicing and accounting reconciliations with Adfin..

When integrated with Klavis AI, you can:

  • Monitor and manage customer credit status and payment tracking
  • Create individual invoices with customizable details
  • Upload and process multiple PDF invoices simultaneously

This guide provides step-by-step instructions to set up Adfin in Klavis AI, including configuration, examples, and troubleshooting.

What You'll Achieve

After completing this setup:

  • Adfin will be fully integrated and operational
  • You can use Adfin tools directly in Klavis AI
  • All Adfin capabilities will be available for your workflows
  • Access to 5 different tools

Prerequisites

Before starting, ensure you have:

  • Adfin account email address
  • Adfin account password
  • Klavis AI installed and configured
  • Compatible operating system (Cloud (klavis.ai), Self-Hosted (Docker), Python SDK, TypeScript SDK)

Installation

Step 1: Install Adfin

Configuration

Step 2: Configure Klavis AI

  1. Open Klavis AI settings
  2. Navigate to MCP server configuration
  3. Add Adfin server with appropriate settings
  4. Save and restart if needed

Examples

Once configured, you can use Adfin in Klavis AI:

Credit Control Status Check

Review overall credit control status for all customers

Ask Klavis AI: "Give me a credit control status check for all our customers"

Expected Result: Comprehensive report showing customer payment status, overdue amounts, and credit risks

Create New Invoice

Generate an invoice for a specific customer with custom terms

Ask Klavis AI: "Create a new invoice for 60 GBP for Abc Def that is due in a week"

Expected Result: Invoice created with customer details, amount, and 7-day payment terms

Bulk Invoice Upload

Process multiple PDF invoices from a directory

Ask Klavis AI: "Upload all pdf invoices from the invoices folder from my Desktop"

Expected Result: All PDF invoices processed, validated, and uploaded to Adfin system

Payment Reconciliation

Match received payments with outstanding invoices

Ask Klavis AI: "Reconcile the payment of £1,250 received today with our outstanding invoices"

Expected Result: Payment matched to appropriate invoices with reconciliation details recorded

Testing Your Setup

  1. Launch Klavis AI
  2. Verify Adfin is available in the tools list
  3. Test basic Adfin functionality

Troubleshooting

Common Issues

Authentication Failed

Symptoms: Login errors, Invalid credentials messages, 401 Unauthorized

Cause: Incorrect ADFIN_EMAIL or ADFIN_PASSWORD

Solution:

  • Verify email and password are correct in Adfin web interface
  • Check for typos in environment variables
  • Ensure credentials are not expired or locked
  • Reset password if necessary through Adfin portal

UV Package Manager Not Found

Symptoms: Command not found errors, uv command fails

Cause: UV package manager not installed or not in PATH

Solution:

  • Install uv: curl -LsSf https://astral.sh/uv/install.sh | sh
  • Restart terminal to update PATH
  • Verify installation: uv --version
  • For Windows: use PowerShell installation script

PDF Invoice Processing Fails

Symptoms: Upload errors, PDF parsing failures, Invalid file format

Cause: Corrupted PDFs, unsupported format, or file permissions

Solution:

  • Verify PDFs are valid and readable
  • Check file permissions allow read access
  • Ensure PDFs contain text (not just images)
  • Try uploading files individually to isolate issues

Claude Desktop Configuration Error

Symptoms: MCP server not detected, Configuration syntax errors

Cause: Invalid JSON syntax or incorrect configuration structure

Solution:

  • Validate JSON syntax in claude_desktop_config.json
  • Ensure proper nesting of mcpServers configuration
  • Check file is in correct location for Claude Desktop
  • Restart Claude Desktop after configuration changes

API Authentication Failed

Symptoms: 401 Unauthorized errors, Invalid API key message

Cause: Missing or incorrect API key

Solution:

  • Verify API key is correctly copied from klavis.ai dashboard
  • Check API key is set in environment variable or code
  • Ensure API key has not expired
  • Regenerate API key if necessary

OAuth Authorization Errors

Symptoms: OAuth redirect failures, Authentication loop, Token refresh errors

Cause: OAuth credentials not configured or expired

Solution:

  • Complete OAuth authorization flow for required services
  • Check redirect URLs are correctly configured
  • Verify OAuth app credentials in service provider settings
  • Contact Klavis support for OAuth troubleshooting

Tool Call Failures

Symptoms: Tool not found errors, Execution timeouts, Rate limit errors

Cause: Tool not properly configured or service rate limits exceeded

Solution:

  • Verify tool name matches available tools list
  • Check service-specific rate limits and quotas
  • Ensure required parameters are provided correctly
  • Review Klavis API logs for detailed error messages

Context Window Overload

Symptoms: Too many tools error, Context length exceeded, Slow responses

Cause: Too many tools exposed to AI agent at once

Solution:

  • Use Strata Progressive Discovery to expose tools hierarchically
  • Reduce number of simultaneous MCP servers in Strata configuration
  • Filter tools based on current task context
  • Enable intelligent tool filtering in Strata settings

Docker Deployment Issues

Symptoms: Container fails to start, Port conflicts, Connection refused

Cause: Docker configuration or port binding errors

Solution:

  • Ensure Docker is installed and running
  • Check port 5000 is not already in use (or change port mapping)
  • Verify Docker image pulled successfully
  • Check container logs: docker logs <container-id>

Adfin not appearing in Klavis AI

Symptoms: Server not listed, Tools not available

Cause: Configuration or installation issue

Solution:

  • Verify configuration syntax
  • Check Adfin installation
  • Restart Klavis AI
  • Check logs for error messages

Next Steps

Now that Adfin is integrated with Klavis AI:

  • Explore all Adfin capabilities through Klavis AI
  • Check out other MCP servers that work with Klavis AI
  • Join the MCP community for tips and support
  • Consider contributing to Adfin development

Need Help?

Related Resources

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Adfin + Klavis AI: MCP Setup Guide (2026)