Bring Merchant Services
to LangChain
Create your Vinkius account to connect Fee Navigator to LangChain and start using all 12 AI tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code. No hosting, no server setup — just connect and start using.
Compatible with every major AI agent and IDE
What is the Fee Navigator MCP Server?
Connect your Fee Navigator account to any AI agent and take full control of your merchant statement analysis and proposal workflow through natural conversation.
What you can do
- Merchant Orchestration — List all managed merchants and fetch detailed profiles including current processing metadata natively
- AI Statement Analysis — Trigger instant AI-powered analysis for uploaded merchant statements to identify hidden fees flawlessly
- Proposal Intelligence — List, inspect, and track savings proposals to optimize your sales pipeline natively
- Audit Management — Access detailed statement audits to verify processing costs and potential overcharges synchronously
- Industry Benchmarking — Retrieve real-time industry statistics and savings benchmarks to validate your offers flawlessly
- Document Flow — Manage statement uploads and tracking statuses directly from the cloud without manual portal navigation
- Identity Context — Verify your API token user profile and account information through the agent flawlessly
How it works
- Subscribe to this server
- Enter your Fee Navigator API Token (found in Developer Settings)
- Start analyzing merchant statements from Claude, Cursor, or any MCP-compatible client
Who is this for?
- Merchant Services ISOs — automate the ingestion and analysis of statements to speed up the sales cycle
- Sales Agents — quickly check potential savings and proposal status while on the go using natural language
- Payment Analysts — pull granular fee data and industry benchmarks directly into your AI-powered auditing workflow
Built-in capabilities (12)
Trigger AI analysis for an uploaded statement
Get Fee Navigator account details
Get details for a specific audit
Get merchant service industry savings benchmarks
Get current API token identity info
Get details for a specific merchant
Get details for a specific proposal
List all statement audits
List all merchants in your Fee Navigator account
List all savings proposals
List recent merchant analysis activities
Upload a merchant statement for analysis
Why LangChain?
LangChain's ecosystem of 500+ components combines seamlessly with Fee Navigator through native MCP adapters. Connect 12 tools via Vinkius and use ReAct agents, Plan-and-Execute strategies, or custom agent architectures. with LangSmith tracing giving full visibility into every tool call, latency, and token cost.
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The largest ecosystem of integrations, chains, and agents. combine Fee Navigator MCP tools with 500+ LangChain components
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Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step
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LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging
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Memory and conversation persistence let agents maintain context across Fee Navigator queries for multi-turn workflows
Fee Navigator in LangChain
Why run Fee Navigator with Vinkius?
The Fee Navigator connection runs on our fully managed, secure cloud infrastructure. We handle the hosting, maintenance, and security so you don't have to deal with servers or code. All 12 tools are ready to work instantly without any complex setup.
You stay in complete control of your data. Your AI only accesses the information you approve, keeping your sensitive passwords and private details completely safe. Plus, with automatic optimizations, your AI works faster and more efficiently.

* Every connection is hosted and maintained by Vinkius. We handle the security, updates, and infrastructure so you don't have to write code or manage servers. See our infrastructure
Over 4,000 integrations ready for AI agents
Explore a vast library of pre-built integrations, optimized and ready to deploy.
Connect securely in under 30 seconds
Generate tokens to authenticate and link external services in a single step.
Complete visibility into every agent action
Audit live requests, latency, success rates, and active security compliance policies.
Optimize spending and track token ROI
Analyze real-time token consumption and cost metrics detailed by connection.




Explore our live AI Agents Analytics dashboard to see it all working
This dashboard is included when you connect Fee Navigator using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.
Fee Navigator and 4,000+ other AI tools. No hosting, no code, ready to use.
Professionals who connect Fee Navigator to LangChain through Vinkius don't need to write code, manage servers, or worry about security. Everything is pre-configured, secure, and runs automatically in the background.
Raw MCP | Vinkius | |
|---|---|---|
| Ready-to-use MCPs | Find and configure each manually | 4,000+ MCPs ready to use |
| Connection Setup | Manual coding & server setup | 1-click instant connection |
| Server Hosting | You host it yourself (needs 24/7 uptime) | 100% hosted & managed by Vinkius |
| Security & Privacy | Stored in plaintext config files | Bank-grade encrypted vault |
| Activity Visibility | Blind execution (no logs or tracking) | Live dashboard with real-time logs |
| Cost Control | Runaway AI token spend risk | Automatic budget limits |
| Revoking Access | Must delete files or code to stop | 1-click disconnect button |
How Vinkius secures
Fee Navigator for LangChain
Every request between LangChain and Fee Navigator is protected by our secure gateway. We automatically keep your sensitive data private, prevent unauthorized access, and let you disconnect instantly at any time.
Frequently asked questions
How do I obtain my Fee Navigator API Token?
You can generate an API Token in your Fee Navigator dashboard under the Developer or Integrations settings tab.
Can I upload statement files directly via chat?
Yes! Use the upload_statement tool. You can provide the file content as a base64 string, and the agent will handle the ingestion for you.
What kind of savings data does the AI provide?
The AI analyzes interchange rates, markups, and hidden fees to calculate potential monthly and annual savings for the merchant, which can be retrieved using the analyze_statement tool.
How does LangChain connect to MCP servers?
Use langchain-mcp-adapters to create an MCP client. LangChain discovers all tools and wraps them as native LangChain tools compatible with any agent type.
Which LangChain agent types work with MCP?
All agent types including ReAct, OpenAI Functions, and custom agents work with MCP tools. The tools appear as standard LangChain tools after the adapter wraps them.
Can I trace MCP tool calls in LangSmith?
Yes. All MCP tool invocations appear as traced steps in LangSmith, showing input parameters, response payloads, latency, and token usage.
MultiServerMCPClient not found
Install: pip install langchain-mcp-adapters
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