AI & Machine Learning · Needle + Claude
Needle MCP with Claude: Semantic Search Over Your Own Business Knowledge
The short answer
Claude works with Needle through the Model Context Protocol (MCP), an open standard that lets Claude securely use outside software. Once connected, Claude can run semantic searches over your knowledge base, fetch relevant documents and summarise findings, with access limited to what your organisation allows.
What is Needle?
Needle is a retrieval-augmented generation (RAG) toolkit. It brings semantic search to your own data, so an AI agent can find the passages that match the meaning of a question rather than just the exact words. Organisations use it to give chatbots and AI agents accurate, context-aware information drawn from their own documents, policies and records, instead of relying on general knowledge alone.
How Claude connects to Needle through MCP
The Model Context Protocol is an open standard that acts like a universal adapter between Claude and other software. It lets Claude use a tool securely, reading information and taking actions, with permissions the organisation controls. For Needle, the connection is made with an API key, so access is tied to a credential your team issues and can revoke at any time.
Once connected, Claude can run semantic searches against your Needle knowledge base, fetch the most relevant documents and summarise what they say. A team member can ask a question in everyday language, such as which contract clauses cover late delivery, and Claude will retrieve the matching material and explain it, with references to the source documents.
Permissions and approvals keep people in charge. We set up least-privilege access so Claude only reaches the collections it needs, and consequential actions can require a person's sign-off before they run. Every request is logged, so you can review what was searched and retrieved.
What you can automate
Policy and compliance questions
Staff ask questions about internal policies in plain language. Claude runs a semantic search over the policy library in Needle, retrieves the relevant sections and gives a short answer with links to the source text. HR and compliance teams spend less time answering repeat questions, and staff get consistent, documented answers.
Customer support knowledge lookup
Support agents describe a customer's problem and Claude searches product manuals, past resolutions and troubleshooting guides held in Needle. It returns the most relevant steps and summarises them for the agent. Typical outcomes include faster first responses and fewer escalations to senior staff.
Sales proposal research
Account managers need the right case study or technical detail for a proposal. Claude searches the approved content library in Needle and fetches matching documents, then summarises what fits the prospect's industry. Proposal teams can assemble material more quickly while still using only approved wording.
Legal and contract review support
Legal teams ask Claude to find every clause across past contracts that deals with a given risk, such as indemnity or termination. Needle returns the matching passages by meaning, and Claude summarises the patterns for a lawyer to review. The lawyer makes the final judgement.
Onboarding and training assistant
New hires ask how things work in the organisation. Claude searches onboarding guides and internal procedures held in Needle and answers in plain language, pointing to the document each answer came from. HR can keep answers current by updating the source documents rather than retraining staff.
An end-to-end workflow: Contract clause check for a procurement team
TriggerA procurement manager asks Claude whether a new supplier agreement includes late-delivery penalties and data protection terms.
Claude reads the supplier agreement the manager has shared.
Claude runs a semantic search in Needle across the organisation's standard contract templates and approved clause library.
Needle returns the relevant clauses and the source documents they come from.
Claude compares the new agreement with the approved wording and lists any gaps or differences.
The summary is sent to the legal reviewer in Microsoft 365 for approval before the contract is signed.
The result and the approval are recorded in the ticketing system for the audit trail.
OutcomeProcurement reviews are completed faster, deviations from approved terms are flagged early, and a legal reviewer signs off every exception, creating a documented record for audit.
How we set it up
Free automation audit
We review how your teams search for and use information today, and identify the workflows where semantic search over Needle would save the most time.
Secure connection with an API key
We connect Claude to Needle using an API key issued to your organisation. The key is stored securely, scoped to the collections needed, and can be revoked at any time.
Workflow design
We design the end-to-end workflow across Needle and your other systems, such as Microsoft 365, your CRM or your ticketing tool, and agree which actions need human approval.
Testing on real cases
We test the workflow against past questions and documents from your business, check the accuracy of the retrieved results and refine how Claude summarises them.
Launch, monitoring and training
We launch with audit logs and monitoring in place, then train your team on how to use the workflow and what to check before acting on a result.
Who benefits
- Operations directors
- Faster access to accurate internal knowledge, with fewer repeat questions reaching busy managers.
- Customer support leads
- Agents find the right troubleshooting steps quickly, which can shorten handling times.
- Legal and compliance teams
- Clause and policy searches by meaning, with every result traced to its source document.
- IT and data leaders
- Controlled, logged access to company knowledge through a single, revocable API key.
Security and control
- Access is limited to the Needle collections each workflow needs, following least-privilege principles.
- The API key is stored securely and can be rotated or revoked immediately.
- Consequential actions, such as sending a document or changing a record, require approval from a named person.
- Every search and retrieval is logged so the organisation can audit what Claude accessed and why.
- Answers cite their source documents, so people can check the original text before relying on it.
For teams in the US, UK, India and the Middle East
Organisations in the United States and the United Kingdom must protect personal data under their own privacy laws, and we configure access and logging to match. In India, the Digital Personal Data Protection Act, 2023 governs personal data, and in the UAE and Saudi Arabia local data protection laws apply. We choose the hosting region for any custom application, in India, the United States, the United Kingdom or the European Union, so that data stays where your requirements need it to be.
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 Needle MCP server do?
The Needle MCP server lets Claude connect to your Needle knowledge base through a standard interface. Through it, Claude can run semantic searches, fetch relevant documents and summarise knowledge collections in response to natural language requests. It typically exposes only the search and retrieval actions you choose to allow.
Is connecting Needle to Claude secure?
It can be, when set up carefully. Access uses an API key that your organisation issues and controls, scoped to the collections a workflow needs. Requests are logged, sensitive actions can require human approval, and the key can be revoked at any time. Security depends on your configuration, so we review it during setup.
What can Claude do with Needle once it is connected?
Claude can search your documents by meaning, retrieve the passages that match a question, summarise them and explain where each answer came from. In a wider workflow it can pass results to other systems, such as drafting a reply in Microsoft 365 or logging an outcome in a ticketing tool, with approvals where needed.
How long does setup take?
A simple single-collection connection can often be set up in a few days once the audit is complete. Larger workflows that span several systems and need testing on real cases typically take several weeks. The exact timeline depends on how well organised your source documents are.
Which plan or permissions are needed to use Needle with Claude?
You need a Needle account with an API key that grants access to the collections you want Claude to search. The specific plan and permission levels depend on your Needle subscription and your organisation's policies, so we confirm them during the free automation audit.