Best Claude Apps

Extend Claude connector

Turn documents into structured data

Add Extend to Claude

Add to Claude
URL https://mcp.extend.ai/mcp
$ claude mcp add --transport http extend https://mcp.extend.ai/mcp

Needs a Extend account All setup steps

Extend in Claude at a glance

Reads
39 tools
Workflows, classifiers, classify runs and 25 more
Creates & edits
32 tools
Workflows, classifiers, classify runs and 21 more
Deletes
10 tools
Classify runs, evaluation items, extract runs and 7 more
Acts as
Your account
Claude works through your own Extend sign-in

Counts come from the tool names in the official listing. See every tool

How a request travels Illustration, not a screenshot

  1. 1 · You ask

    “Search the Extend docs: how do I [do something]?”

  2. 2 · Claude calls

    search_documentation

    Looks up answers in the Extend documentation

  3. 3 · Server runs it

    mcp.extend.ai

    As your Extend account

  4. 4 · Answer

    Reply in the chat

    Write tools can be set to ask you first

The prompt is our example and the tool is one from Extend’s list. Claude chooses tools itself, so real calls can differ.

Works in Claude on the web Claude Desktop Claude mobile apps Claude Code Other remote MCP clients

How to add Extend to Claude

Extend docs

Claude app web · desktop · mobile

  1. 1 Click Add to Claude or open Settings → Connectors and search for Extend.
  2. 2 Click Connect. Sign in to Extend and approve access.
  3. 3 In a chat, check Extend is on in the tools menu under the message box. Then ask.

On Team and Enterprise plans an owner may need to allow it first.

Claude Code terminal

  1. 1
    Add the server: 
    claude mcp add --transport http extend https://mcp.extend.ai/mcp
    Add --scope user to use it in every project.
  2. 2 Run /mcp, pick extend and sign in.
  3. 3 Check with claude mcp list.

Custom connector or any MCP client

In Claude: Settings → Connectors → Add custom connector. Other clients that support remote (streamable HTTP) servers take the same URL.

Extend MCP server URL

https://mcp.extend.ai/mcp

Extend MCP tools

86

39 read, 32 write, 10 delete, 5 unclear. The official listing gives tool names only, so the text beside each name is our summary of it, not the developer’s wording.

  • Workflows 5 tools

    • get_workflow Opens one workflow with its details (our summary)
    • list_workflows Pulls up a list of workflows (our summary)
    • create_workflow Writes Adds a new workflow (our summary)
    • run_workflow Writes Runs a workflow (our summary)
    • update_workflow Writes Edits an existing workflow (our summary)

  • Classifiers 4 tools

    • get_classifier Opens one classifier with its details (our summary)
    • list_classifiers Pulls up a list of classifiers (our summary)
    • create_classifier Writes Adds a new classifier (our summary)
    • update_classifier Writes Edits an existing classifier (our summary)

  • Classify runs 4 tools

    • get_classify_run Opens one classify run with its details (our summary)
    • list_classify_runs Pulls up a list of classify runs (our summary)
    • cancel_classify_run Writes Cancels a classify run (our summary)
    • delete_classify_run Deletes Deletes a classify run (our summary)
Show 33 more groups · 73 tools, 40 that change data · evaluation items, extract runs, extractors, files, split runs, splitters, webhook endpoints, webhook subscriptions, workflow runs, parse runs, classifier versions, classify batches, edit runs, evaluation sets, extract batches, extractor versions, parse batches, split batches, splitter versions, workflow versions, classify documents, detect form fields, evaluations, extract datas, parse documents, pdfs, split documents, workflow batches, documentation, evaluation runs, file uploads, form detection runs, your account

  • Evaluation items 4 tools

    • list_evaluation_items Pulls up a list of evaluation items (our summary)
    • add_evaluation_items Writes Adds one or more new evaluation items (our summary)
    • delete_evaluation_item Deletes Deletes an evaluation item (our summary)
    • update_evaluation_item Writes Edits an existing evaluation item (our summary)

  • Extract runs 4 tools

    • get_extract_run Opens one extract run with its details (our summary)
    • list_extract_runs Pulls up a list of extract runs (our summary)
    • cancel_extract_run Writes Cancels an extract run (our summary)
    • delete_extract_run Deletes Deletes an extract run (our summary)

  • Extractors 4 tools

    • get_extractor Opens one extractor with its details (our summary)
    • list_extractors Pulls up a list of extractors (our summary)
    • create_extractor Writes Adds a new extractor (our summary)
    • update_extractor Writes Edits an existing extractor (our summary)

  • Files 4 tools

    • get_file Opens one file with its details (our summary)
    • list_files Pulls up a list of files (our summary)
    • delete_file Deletes Deletes a file (our summary)
    • upload_file Writes Adds a new file (our summary)

  • Split runs 4 tools

    • get_split_run Opens one split run with its details (our summary)
    • list_split_runs Pulls up a list of split runs (our summary)
    • cancel_split_run Writes Cancels a split run (our summary)
    • delete_split_run Deletes Deletes a split run (our summary)

  • Splitters 4 tools

    • get_splitter Opens one splitter with its details (our summary)
    • list_splitters Pulls up a list of splitters (our summary)
    • create_splitter Writes Adds a new splitter (our summary)
    • update_splitter Writes Edits an existing splitter (our summary)

  • Webhook endpoints 4 tools

    • list_webhook_endpoints Pulls up a list of webhook endpoints (our summary)
    • create_webhook_endpoint Writes Adds a new webhook endpoint (our summary)
    • delete_webhook_endpoint Deletes Deletes a webhook endpoint (our summary)
    • update_webhook_endpoint Writes Edits an existing webhook endpoint (our summary)

  • Webhook subscriptions 4 tools

    • list_webhook_subscriptions Pulls up a list of webhook subscriptions (our summary)
    • create_webhook_subscription Writes Adds a new webhook subscription (our summary)
    • delete_webhook_subscription Deletes Deletes a webhook subscription (our summary)
    • update_webhook_subscription Writes Edits an existing webhook subscription (our summary)

  • Workflow runs 4 tools

    • get_workflow_run Opens one workflow run with its details (our summary)
    • list_workflow_runs Pulls up a list of workflow runs (our summary)
    • cancel_workflow_run Writes Cancels a workflow run (our summary)
    • delete_workflow_run Deletes Deletes a workflow run (our summary)

  • Parse runs 3 tools

    • get_parse_run Opens one parse run with its details (our summary)
    • list_parse_runs Pulls up a list of parse runs (our summary)
    • delete_parse_run Deletes Deletes a parse run (our summary)

  • Classifier versions 2 tools

    • list_classifier_versions Pulls up a list of classifier versions (our summary)
    • publish_classifier_version Writes Publishes a classifier version (our summary)

  • Classify batches 2 tools

    • get_classify_batch Opens one classify batch with its details (our summary)
    • run_classify_batch Writes Runs a classify batch (our summary)

  • Edit runs 2 tools

    • get_edit_run Opens one edit run with its details (our summary)
    • delete_edit_run Deletes Deletes an edit run (our summary)

  • Evaluation sets 2 tools

    • list_evaluation_sets Pulls up a list of evaluation sets (our summary)
    • create_evaluation_set Writes Adds a new evaluation set (our summary)

  • Extract batches 2 tools

    • get_extract_batch Opens one extract batch with its details (our summary)
    • run_extract_batch Writes Runs an extract batch (our summary)

  • Extractor versions 2 tools

    • list_extractor_versions Pulls up a list of extractor versions (our summary)
    • publish_extractor_version Writes Publishes an extractor version (our summary)

  • Parse batches 2 tools

    • get_parse_batch Opens one parse batch with its details (our summary)
    • run_parse_batch Writes Runs a parse batch (our summary)

  • Split batches 2 tools

    • get_split_batch Opens one split batch with its details (our summary)
    • run_split_batch Writes Runs a split batch (our summary)

  • Splitter versions 2 tools

    • list_splitter_versions Pulls up a list of splitter versions (our summary)
    • publish_splitter_version Writes Publishes a splitter version (our summary)

  • Workflow versions 2 tools

    • list_workflow_versions Pulls up a list of workflow versions (our summary)
    • deploy_workflow_version Writes Deploys a workflow version (our summary)

  • Classify documents 1 tool

    • No read tools
    • classify_document Unclear

  • Detect form fields 1 tool

    • No read tools
    • detect_form_fields Unclear

  • Evaluations 1 tool

    • No read tools
    • run_evaluation Writes Runs an evaluation (our summary)

  • Extract datas 1 tool

    • No read tools
    • extract_data Unclear

  • Parse documents 1 tool

    • No read tools
    • parse_document Unclear

  • Pdfs 1 tool

    • No read tools
    • edit_pdf Writes Edits an existing pdf (our summary)

  • Split documents 1 tool

    • No read tools
    • split_document Unclear

  • Workflow batches 1 tool

    • No read tools
    • run_workflow_batch Writes Runs a workflow batch (our summary)

  • Documentation 2 tools

    • get_documentation Opens one documentation with its details (our summary)
    • search_documentation Looks up answers in the Extend documentation (our summary)
    • None

  • Evaluation runs 1 tool

    • get_evaluation_run Opens one evaluation run with its details (our summary)
    • None

  • File uploads 1 tool

    • get_file_upload Opens one file upload with its details (our summary)
    • None

  • Form detection runs 1 tool

    • get_form_detection_run Opens one form detection run with its details (our summary)
    • None

  • Your account 1 tool

    • get_me Checks which Extend account you are signed in as (our summary)
    • None

Read or write is our reading of each name. List checked 2026-10-20; developers can change tools at any time.

Things to ask Claude with Extend

Our suggestions, one for each kind of tool Extend offers. Not from Extend or Anthropic. Fill in the [brackets].

  • Search the Extend docs: how do I [do something]?

    uses search_documentation

  • Create an Extend workflow for [what it is about].

    uses create_workflow

  • Update the Extend workflow [name or link]: [what to change].

    uses update_workflow

  • Turn these notes into Extend workflows, one per action item: [paste notes].

    uses create_workflow

  • Open the Extend workflow [name or link] and give me the key points.

    uses get_workflow

  • Create an Extend classifier for [what it is about].

    uses create_classifier

Security and access

Where requests go, whose account Claude uses, and what you control.

Server

mcp.extend.ai

On the developer’s own domain (extend.ai), not a third-party host. Claude sends requests here when it uses a tool.

Account

Your own Extend account

You sign in when you connect. Claude works through that account, so it reaches what the account can reach.

Control

You approve write tools

In Claude’s connector settings you can choose, tool by tool, whether Claude must ask before using it. Write tools are marked in the list above. See write tools

Policy

Privacy policy

Published by Extend and linked from the official listing. Read it ↗

Anthropic’s directory notes that it does not control which tools a developer exposes and cannot guarantee they work as intended or stay the same. Connect connectors you trust.

Reviews

No reviews yet. Used Extend with Claude? Tell others how it went.

Honest reviews only. We never pay for or edit ratings.

    Questions people ask

    What does the Extend connector do in Claude?

    Parse, extract, classify, and split documents from chat: pull fields, tables, and line items out of PDFs, images, Office files, and spreadsheets, identify document types, break bundles into separate documents, and fill PDF forms. Build and test reusable extractors, classifiers, and workflows on real documents, then run them at scale in your Extend workspace.

    Is the Extend connector official?

    It is made by Extend and carries the Anthropic verified mark in Anthropic’s directory. This site is independent and lists it from the official directory.

    What is the Extend MCP server URL?

    https://mcp.extend.ai/mcp. It is a remote MCP server hosted at mcp.extend.ai. Paste it into Claude as a custom connector, or add it to Claude Code with: claude mcp add --transport http extend https://mcp.extend.ai/mcp

    How do I add Extend to Claude Code?

    Run "claude mcp add --transport http extend https://mcp.extend.ai/mcp" in your terminal, then start Claude Code, type /mcp, choose extend and sign in to Extend. Add "--scope user" to make it available in every project.

    Do I need a Extend account?

    Yes. You sign in to Extend when you connect it, and Claude works through that account.

    Can Claude change or delete my Extend data?

    Judging by tool names, 42 of its 86 tools can change data, including 10 that delete or remove things. The other 39 only read. In Claude you can choose, per tool, whether Claude must ask before using it.

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