Document & File Management · Nanonets OCR + Claude
Nanonets OCR MCP with Claude: Turn Invoices and Receipts into Clean Data
The short answer
Claude works with Nanonets OCR through the Model Context Protocol (MCP), a secure standard that lets Claude use the tool with permissions you control. Once connected, Claude can request document extraction, read structured fields from invoices, receipts and forms, and answer questions about the results in natural language, while people approve any action that affects your records.
What is Nanonets OCR?
Nanonets OCR is a model-based optical character recognition service. It reads scanned files and PDFs and extracts structured data such as invoice numbers, totals, dates, vendor names and line items. Finance teams, accounts payable staff, operations managers and document-heavy businesses use it to turn messy paperwork into clean, usable data. Trained workflows can be tuned to the forms an organisation handles most often.
How Claude connects to Nanonets OCR through MCP
The Model Context Protocol is an open standard that acts like a universal adapter between Claude and other software. It lets Claude securely use a tool by reading information and taking actions, with access that the organisation sets and controls. Instead of copying files by hand, your team lets Claude work with the tool directly.
Once connected to Nanonets OCR, Claude can typically submit documents for extraction, retrieve the fields it has read, and answer questions such as which invoices from last month are still unpaid or what the total tax was on a set of receipts. It can also pass clean data on to your other systems, depending on how the workflow is designed.
Permissions and approvals keep people in charge. Access is limited to what each workflow needs, and actions that change records or send data onward can require a person to review and confirm first. Every step can be logged, so you can see what was read, what was changed and by whom.
What you can automate
Invoice data capture for accounts payable
Incoming supplier invoices are sent for extraction. Claude reads the returned fields, checks totals and due dates against your rules, and prepares entries for the accounts team to approve. Staff spend less time keying figures and more time resolving the exceptions that really need judgement.
Receipt processing for expense claims
Employees upload receipts from trips and purchases. Nanonets OCR extracts merchant, date, amount and category, and Claude flags anything that looks incomplete or out of policy. Finance reviewers receive a short summary instead of a pile of images to check one by one.
Form intake for operations teams
Onboarding forms, service requests or application forms arrive as scans. Claude helps extract the key details and answer questions from the team, such as which applications are missing a signature or date, so work moves forward faster.
Natural language queries over document results
Managers ask questions in plain English, such as how many invoices from a given supplier arrived this quarter. Claude queries the OCR results and returns a clear answer, reducing the need for manual searches through folders and spreadsheets.
Document archive clean-up
Businesses with years of scanned records can use extraction to build a searchable index. Claude helps classify documents and identify duplicates or gaps, which is useful during audits, migrations or system changes.
An end-to-end workflow: Supplier invoice to approved payment record
TriggerA supplier invoice is received by email or uploaded to the shared finance folder.
The invoice is sent to Nanonets OCR, which extracts the vendor, invoice number, dates, line items and total.
Claude checks the extracted fields against the purchase order held in the ERP system and flags any mismatch.
Matched invoices are prepared as draft payment records in the ERP for review.
Flagged invoices are routed to the accounts team with a short note explaining the difference.
An approver confirms each payment, and the final record and audit log are saved to Microsoft 365 for the finance archive.
OutcomeTypical outcomes include faster invoice processing, fewer keying errors and a clear audit trail, with approvers focusing on exceptions rather than data entry.
How we set it up
Free automation audit
We review your current document flows and identify the invoices, receipts or forms where automation will save the most time. You receive a clear list of priorities at no cost.
Secure API key connection
We connect Claude to Nanonets OCR using an API key, issued and held under your control. The key is stored securely and access is limited to the actions each workflow requires.
Workflow and integration design
We design the end-to-end flow across Nanonets OCR and your other systems, such as Microsoft 365, your CRM, ERP or ticketing tool, and agree which steps need human approval.
Testing on real documents
We test the workflow against past invoices, receipts and forms, measure accuracy, and tune the extraction and validation rules before anything goes live.
Launch, monitoring and training
We launch with monitoring and audit logs in place, then train your team on reviewing flagged items and asking questions in plain language.
Who benefits
- Finance and accounts payable managers
- Less manual keying, faster invoice cycles and clearer audit trails.
- Operations directors
- Form and document intake that moves faster, with fewer missing details.
- IT and systems leads
- A secure, permission-controlled connection that fits existing systems.
- Expense and HR teams
- Quicker receipt checks and fewer delays in claim processing.
Security and control
- Access uses an API key that you control, with least-privilege permissions for each workflow.
- People approve any action that changes financial or customer records.
- Audit logs record what was extracted, reviewed and changed.
- Sensitive documents are handled under your data policies, and hosting region can be chosen to meet your requirements.
- Extraction accuracy is measured on your own documents before launch, and exceptions are routed to people.
For teams in the US, UK, India and the Middle East
Organisations in the United States and the United Kingdom can align document workflows with their state and national data protection requirements. In India, workflows can be designed with the Digital Personal Data Protection Act, 2023 in mind. Businesses in the UAE and Saudi Arabia can meet local data protection laws through careful design of access and storage. Hosting region is chosen to meet your requirements, including the United States, United Kingdom, India or the European Union.
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 Nanonets OCR MCP server do?
The MCP server gives Claude a secure way to use Nanonets OCR. Through it, Claude can typically submit documents for extraction, retrieve structured fields such as invoice totals or receipt dates, and answer questions about the results. It acts as a standard bridge, so access is defined and limited by your organisation.
Is connecting Nanonets OCR to Claude secure?
Security depends on the design. Access uses an API key that you control, permissions are limited to what each workflow needs, and actions that change records can require human approval. Audit logs record activity, and hosting region can be selected to meet your requirements.
What can Claude do with Nanonets OCR once it is connected?
Typically, Claude can process invoices, read receipts, retrieve extracted fields from forms, and query OCR results through natural language. For example, a manager can ask how many invoices from a supplier are unpaid, and Claude can answer from the extracted data.
How long does setup take?
Timing depends on the number and complexity of your document types and the systems involved. A typical project moves from the free audit through design, testing and launch in stages, and we agree a timeline once we understand your workflows.
What plan or permissions do I need?
You need access to a Nanonets OCR account that can issue an API key. The permissions in that key should match the workflows you want, and we advise on the least access required. Details of your plan should be confirmed directly with your Nanonets OCR account.