Developer Tools & Devops · Nango + Claude
Nango MCP with Claude: Connect 250+ Business Apps to One Assistant
The short answer
Claude connects to Nango through the Model Context Protocol (MCP), an open standard that lets Claude securely use other software. Once connected, Claude can fetch data from over 250 SaaS apps, sync customer records and trigger HR or accounting workflows, using permissions your organisation controls.
What is Nango?
Nango is a unified API platform. It connects a business to more than 250 software-as-a-service apps across CRM, HR and accounting, so teams do not need to build and maintain a separate integration for each one. Developers and operations teams use it to keep customer, employee and financial data flowing between their tools. It offers both a direct API and an MCP-based route for AI agents and chatbots to use the same connections.
How Claude connects to Nango through MCP
The Model Context Protocol is an open standard that works like a universal adapter between Claude and other software. It lets Claude securely read information from a tool and take actions in it, with permissions the organisation decides in advance. Nango's MCP route gives Claude a single, structured way to reach the many apps it already connects to.
Once connected, Claude can typically fetch external SaaS data, look up a customer record, update a CRM contact, or start an HR or accounting process when someone asks for it in plain language. Each request runs through the access that was granted, so Claude only sees and changes what it has been allowed to.
Your people stay in charge. Consequential actions, such as changing a payroll-related record or posting an accounting entry, can be set to wait for human approval. Access is limited to the least it needs to do the job, and activity can be logged so you can review what happened and when.
What you can automate
Customer record sync
A sales operations lead asks Claude to bring a new contact from the CRM into the billing system. Claude checks both records, flags mismatched fields and proposes an update for approval. The team keeps one accurate customer record without copying data by hand between tools.
CRM hygiene checks
A revenue team asks Claude each week to find deals with no next step, missing owners or stale close dates. Claude pulls the list from the CRM and drafts a short summary for each account manager. Managers spend their time selling rather than cleaning up records.
HR onboarding triggers
An HR coordinator tells Claude that a new hire starts on Monday. Claude checks the HR system, confirms the required details are present and starts the standard onboarding tasks in connected tools, asking for sign-off before anything is created. New starters arrive with their accounts and paperwork ready.
Accounting queries
A finance manager asks Claude which supplier invoices are still unpaid after 30 days. Claude reads the accounting data, groups the results by supplier and suggests a payment run for review. Finance gets fast answers without building a report from scratch.
Support account lookups
A support agent asks Claude for a customer's plan, recent invoices and open records before a call. Claude gathers the information from the connected apps and presents it in one clear view. Agents resolve issues faster because they do not switch between five screens.
An end-to-end workflow: Onboarding a new client account
TriggerA deal is marked as won in the CRM and the account manager asks Claude to start onboarding.
Claude fetches the deal, contact and company details from the CRM through Nango.
Claude checks the accounting system to confirm the client has a valid billing profile and creates one if it is missing, after approval.
Claude opens the onboarding checklist in the HR or project tool and assigns the standard tasks to the right team members.
Claude drafts a welcome summary with the agreed scope and key dates, and sends it to the account manager for review.
Once approved, the summary is saved to the client record so everyone works from the same information.
OutcomeNew clients are set up in days rather than weeks, with billing, records and tasks aligned across the CRM, accounting and project tools. Typical results will depend on your systems and approval steps.
How we set it up
Free automation audit
We review your CRM, HR, accounting and other business tools to find the workflows worth automating first. You leave with a clear list of priorities and an honest view of what is practical.
Connect Nango to Claude
We connect Claude to Nango through its MCP route, using the API key sign-in method that Nango supports. Access is set to least privilege, so each connection can only do what the workflow requires.
Design the end-to-end workflow
We map how data and actions move across Nango's connected apps and your other systems. We agree which steps run automatically and which need a person to approve them.
Test and launch with monitoring
We test the workflow against real past cases, check the results with your team and launch with monitoring and audit logs turned on. Any issues are fixed before wider use.
Team training and handover
We train your staff on how to ask Claude for what they need, how to review approvals and how to spot problems. You receive documentation so the workflow can be maintained with confidence.
Who benefits
- Operations director
- Gets one place to coordinate data and tasks across CRM, HR and accounting, with less manual copying between systems.
- IT or engineering lead
- Avoids building and maintaining a separate integration for every app, and controls access through clear, limited permissions.
- Sales or revenue manager
- Keeps CRM records accurate and up to date without spending hours on admin.
- Finance or HR manager
- Speeds up routine queries and onboarding steps while keeping approval over every consequential change.
Security and control
- Least-privilege access, so Claude only reaches the data and actions each workflow needs.
- Human approval for consequential actions such as financial postings or changes to employee records.
- Audit logs that record what Claude read and changed, so activity can be reviewed.
- Testing against real past cases before any workflow goes live.
- Regular review of connections and API keys, with keys rotated and revoked when no longer needed.
For teams in the US, UK, India and the Middle East
Organisations in the United States and the United Kingdom can use Claude with Nango under their own data protection and privacy obligations, and we design access to support them. In India, workflows are built to meet the Digital Personal Data Protection Act, 2023. For organisations in the Middle East, including the UAE and Saudi Arabia, we take account of local data protection laws. Hosting for custom applications can be chosen in India, the United States, the United Kingdom or the European Union to meet your requirements.
Learn more about Claude and MCP
Anthropic's AI model and assistant.
Secure links between Claude and business tools.
How engineers build and change software with Claude.
Hosted agents that run multi-step work.
The open standard Claude uses to connect to tools.
Frequently asked questions
What does the Nango MCP server do?
The Nango MCP server gives Claude a structured way to reach the apps Nango connects to. Through it, Claude can typically fetch data from CRM, HR and accounting tools and carry out actions you have permitted. It acts as a secure bridge, so you do not need a custom connection for each business app.
Is connecting Claude to Nango secure?
Security depends on how the connection is set up. We use the API key sign-in method, grant least-privilege access, keep audit logs and require human approval for consequential actions. Keys are stored and rotated carefully, and access can be revoked at any time.
What can Claude do with Nango once it is connected?
Typically Claude can look up records, summarise data across apps, flag inconsistencies, draft updates and start defined workflows. The exact actions depend on the permissions you grant and the apps connected to Nango. We agree this scope with you before launch.
How long does setup take?
A simple connection and single workflow can often be set up in a few weeks, including testing and training. Larger projects with several systems and approval chains take longer. The free automation audit gives a realistic timeline for your situation.
Which plan or permissions do I need?
You need an active Nango account and an API key with permissions that cover the apps and actions your workflow uses. The right level depends on your systems and your security policies, so we confirm the requirements during the audit rather than assume them.