ModelsAtlas
Explore
Atlas / MCP servers / pspdfkit / Nutrient Document Engine

Nutrient Document EngineCAUTION

mcp/pspdfkit/nutrient-document-engine
MCP server by pspdfkit · agentic ai · document processing · document processor · Audited 2026-10-07
⚑ Report / re-scanSource ↗

A Model Context Protocol (MCP) server implementation exposes document processing capabilities through natural language, supporting both direct human interaction and AI agent tool calling.

Verdict
CAUTION
Grade
B
Trust score
85 /100
Exposed tools
—
Transport
stdio · streamable-http
License
MIT
Stars
62
01

Overview

From the repository's own README, as read at the audited commit. Badges and raw HTML are left out.

[](https://www.npmjs.com/package/@nutrient-sdk/document-engine-mcp-server)

Connect AI agents to document processing.

This MCP server exposes document processing capabilities through natural language, supporting both direct human interaction and AI agent tool calling.

Which MCP Server Should I Use?

You are in the Document Engine MCP Server repo. Choose this when you need self-hosted/on-prem document workflows and deployment control.

Example Conversations

Once configured, you (or your agent) can interact with documents through natural language:

You: "What documents do I have available?" AI: "I can see you have 3 documents: annual-report.pdf, contract-draft.pdf, and tax-form-2023.pdf. Would you like me to analyze any of these?"

You: "Extract all the names and phone numbers from these invoices" AI: "I found 12 contacts: John Smith (555-0123), Sarah Johnson (555-0456)..."

You: "Redact all social security numbers from these tax forms" AI: *"I've id

Read from source at commit c6d6cf59ffbaOBSERVED · 2026-10-07
02

Connect

Built from this server's own package name, version and transport as found in its source — not copied from anyone's documentation, so it cannot drift against a page we do not control. Replace the environment placeholders with a token scoped to the least it needs.

claude-code (npm)
claude mcp add document-engine-mcp-server --env DOCUMENT_ENGINE_API_AUTH_TOKEN=${DOCUMENT_ENGINE_API_AUTH_TOKEN} --env DASHBOARD_PASSWORD=${DASHBOARD_PASSWORD} -- npx -y @nutrient-sdk/[email protected]
03

Trust audit

CAUTIONgrade B · trust 85/100 Install with care. The audit found things worth knowing before you trust its output.

LayerWhat it checksResult
L0Provenance & inventoryPASS
L1Static analysis of the codeWARN
L2Instruction surface (what it tells the agent)PASS
L3Class-specific surfacePASS
L4Behavioural (sandbox)SKIPPED

What the source does

Filesystem
declared (2 observation(s))
Network
none-observed
Shell
declared (1 observation(s))
Dependencies
not all pinned
Secrets in source
none-found

Findings (23)

MEDIUMObfuscation / stealth · obf.base64_blob · CWE-506, CWE-94
assets/form.pdf:108
8 0 obj<</BaseFont/Helvetica-Bold/Encoding 10 0 R/Name/HeBo/Subtype/Type1/Type/Font>>endobj9 0 obj<</BaseFont/Helvetica/Encoding 10 0 R/Name/Helv/Subtype/Type1/Type/Font>>endobj10 0 obj<</Differences[
MEDIUMObfuscation / stealth · obf.base64_blob · CWE-506, CWE-94
assets/form.pdf:416
137 0 obj[/ICCBased 82 0 R]endobj138 0 obj<</AIS false/BM/Normal/CA 1.0/OP false/OPM 1/SA true/SMask/None/Type/ExtGState/ca 1.0/op false>>endobj147 0 obj<</BaseEncoding/WinAnsiEncoding/Differences[27/
LOWInventory / provenance · inv.binary · CWE-1104
examples/assets/finance.xlsx
finance.xlsx
Why it matters. a compiled or binary member cannot be reviewed from source
Fix. ship source, or explain the binary in the README
LOWInventory / provenance · inv.hidden_file · CWE-1104
.prettierrc.json
.prettierrc.json
Why it matters. hidden member outside the usual dotfiles
Fix. review its purpose
LOWFilesystem / path · fs.traversal · CWE-22, CWE-59
examples/document-chat/apps/web/src/components/thread/agent-inbox/components/inbox-item-input.tsx:7
import { MarkdownText } from "../../markdown-text";
LOWFilesystem / path · fs.traversal · CWE-22, CWE-59
examples/document-chat/apps/web/src/components/thread/agent-inbox/components/state-view.tsx:15
import { MarkdownText } from "../../markdown-text";
LOWFilesystem / path · fs.traversal · CWE-22, CWE-59
examples/document-chat/apps/web/src/components/thread/agent-inbox/components/thread-id.tsx:10
import { TooltipIconButton } from "../../tooltip-icon-button";
LOWFilesystem / path · fs.traversal · CWE-22, CWE-59
src/tools/annotations/addAnnotation.ts:1
import { DocumentEngineClient } from '../../api/Client.js';
LOWFilesystem / path · fs.traversal · CWE-22, CWE-59
src/tools/annotations/addAnnotation.ts:7
} from '../../api/DocumentEngineSchema.js';
LOWObfuscation / stealth · obf.base64_blob · CWE-506, CWE-94
examples/assets/form.pdf:108
8 0 obj<</BaseFont/Helvetica-Bold/Encoding 10 0 R/Name/HeBo/Subtype/Type1/Type/Font>>endobj9 0 obj<</BaseFont/Helvetica/Encoding 10 0 R/Name/Helv/Subtype/Type1/Type/Font>>endobj10 0 obj<</Differences[
LOWObfuscation / stealth · obf.base64_blob · CWE-506, CWE-94
examples/assets/form.pdf:416
137 0 obj[/ICCBased 82 0 R]endobj138 0 obj<</AIS false/BM/Normal/CA 1.0/OP false/OPM 1/SA true/SMask/None/Type/ExtGState/ca 1.0/op false>>endobj147 0 obj<</BaseEncoding/WinAnsiEncoding/Differences[27/
LOWSupply chain · supply.unpinned · CWE-829, CWE-1357
examples/document-chat/apps/agents/package.json
@elastic/elasticsearch, @langchain/anthropic, @langchain/cohere, @langchain/community, @langchain/core, @langchain/langgraph, @langchain/langgraph-checkpoint, @langchain/mcp-adapters
Why it matters. 34 dependency range(s) float
Fix. pin exact versions or ship a lockfile
LOWSupply chain · supply.unpinned · CWE-829, CWE-1357
examples/document-chat/apps/web/package.json
@langchain/core, @langchain/langgraph, @langchain/langgraph-api, @langchain/langgraph-cli, @langchain/langgraph-sdk, @radix-ui/react-avatar, @radix-ui/react-dialog, @radix-ui/react-label
Why it matters. 58 dependency range(s) float
Fix. pin exact versions or ship a lockfile
LOWSupply chain · supply.unpinned · CWE-829, CWE-1357
examples/document-chat/package.json
@eslint/eslintrc, @tsconfig/recommended, @typescript-eslint/eslint-plugin, @typescript-eslint/parser, concurrently, eslint, eslint-config-prettier, eslint-plugin-import
Why it matters. 14 dependency range(s) float
Fix. pin exact versions or ship a lockfile
LOWSupply chain · supply.unpinned · CWE-829, CWE-1357
examples/langgraphjs/package.json
@langchain/core, @langchain/langgraph, @langchain/mcp-adapters, @langchain/openai, dotenv, mime-types, zod
Why it matters. 7 dependency range(s) float
Fix. pin exact versions or ship a lockfile
LOWSupply chain · supply.unpinned · CWE-829, CWE-1357
examples/openai-agents/package.json
@openai/agents, dotenv, mime-types, zod
Why it matters. 4 dependency range(s) float
Fix. pin exact versions or ship a lockfile
LOWPrompt injection · prompt.transfer_instruction · CWE-94, CWE-1427
README.md:93
`MCP_HTTP_AUTH_TOKEN`; the server refuses to start without a nonempty token. Clients must send the
Why it matters. an instruction to move sensitive data to an outside destination
Fix. remove; a skill never needs the user's secrets off the machine
LOWInventory / provenance · mcp.no_tools_extracted · CWE-1104
server.json
Why it matters. the tool list is enumerated at runtime by tools/list, not declared in source
Fix. the page says so rather than showing an empty table
INFOInventory / provenance · inv.oversize · CWE-1104
assets/ocr.pdf
assets/ocr.pdf
Why it matters. 1371239 bytes not read
INFOInventory / provenance · inv.oversize · CWE-1104
assets/report.pdf
assets/report.pdf
Why it matters. 1288159 bytes not read
INFOInventory / provenance · inv.oversize · CWE-1104
examples/assets/ocrTest.pdf
examples/assets/ocrTest.pdf
Why it matters. 3690371 bytes not read
INFOInventory / provenance · inv.oversize · CWE-1104
resources/claude-document-engine-mcp.gif
resources/claude-document-engine-mcp.gif
Why it matters. 21204894 bytes not read
INFOInventory / provenance · inv.oversize · CWE-1104
src/api/document-engine-api.yml
src/api/document-engine-api.yml
Why it matters. 1058677 bytes not read

Gates applied: no_behavioural_pass.

Audited 2026-10-07 · audit v0.4.1 · source sha c6d6cf59ffbafull audit observations/trust-audit/mcp-server/pspdfkit__nutrient-document-engine.json · Report an issue / request a re-scan
04

Audit history

Every audit this server has had. A grade with a past is a grade somebody is still checking.

DateSourceVerdictGradeScoreChange
2026-10-07c6d6cf59ffbaCAUTIONB85first audit
05

Questions

What is the Nutrient Document Engine MCP server?

A Model Context Protocol (MCP) server implementation exposes document processing capabilities through natural language, supporting both direct human interaction and AI agent tool calling.

Is Nutrient Document Engine safe to connect to an agent?

With care. The audit graded it B (85/100) and found 23 things worth knowing before you trust this server, listed below with the exact line each was found on.

What credentials does Nutrient Document Engine need?

It reads DASHBOARD_PASSWORD, DOCUMENT_ENGINE_API_AUTH_TOKEN, MCP_HTTP_AUTH_TOKEN and NEXT_PUBLIC_LANGSMITH_API_KEY from the environment. Give it a token scoped to the least it needs — an agent that can be talked into calling a tool can be talked into calling it with your credentials.

How does Nutrient Document Engine run?

It speaks stdio and streamable-http, so it runs as a local process your client starts. It is published on npm as @nutrient-sdk/document-engine-mcp-server at 0.0.3.

How current is this page?

The grade is for one exact copy of the source (c6d6cf59ffba), read on 2026-10-07. The repository is watched and re-audited when it changes.

Advertisement