A local MCP server for LayerOne DocX document and Factur-X APIs, plus Sign electronic-signature APIs. Factur-X is an invoice format that combines a human-readable PDF with structured invoice data.

Use it when an agent needs to work with LayerOne documents, Factur-X invoices, or electronic signatures; it requires two environment variables to run.

It provides one local connection for working with these document, invoice, and electronic-signature services.

layerone — MCP server by GOLayerone

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods

npx agentmods add mcp/golayerone/layerone-mcp/layerone

Clone the repo

git clone --depth 1 https://github.com/GOLayerone/layerone-mcp

Made for: Claude Code, Codex, Cursor.

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. Scan, not verified.

Origin unknown No closer match found in the catalogue.

Security

Grade A, and why

layerone scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

server.json · 13 lines

The source is not reproduced here

No licence file

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

2d ago First seen · 13 lines scan A 88e6848d5c43

Subscribe to this mod's changes

layerone is an MCP server published in the GitHub repository GOLayerone/layerone-mcp (0 stars, last pushed 2mo ago), with no licence file. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Documents Legal and compliance PDF

heu-mcp

MCP Server for HEU Legal API - manage documents and PDFs for e-signature with Claude AI. Runs locally from the heu-mcp Python package. Needs 3 environment variables to run.

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redact-pdf-mcp

Permanently redact PII from PDFs. The text is removed, not covered. OCR for scanned documents. Runs locally from the redact-pdf-mcp npm package.

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zapsign-mcp

ZapSign electronic document signing via the official API: create documents for signature (from PDF. Remote server at api.mcp.ai.

mcp-dir/zapsign-mcp · not measured

core

MCP server for ParseRail — gives Claude, Cursor, and any MCP client native tools to parse documents, extract fields, redact PII, analyze contracts, fight chargebacks, and enrich companies. Runs locally from the @kynth/api-mcp npm package. Needs 1 environment variable to run.

kyisaiah47/kynth-core-mcp · not measured

blackout

Permanent local PDF redaction: text is removed and verified gone, not covered. No uploads. Runs locally from the @thrain/blackout-mcp npm package.

thrain-ai/blackout-pdf · not measured

anvil

Hosted MCP server for Anvil — fill & generate PDFs and run Etch e-signature packets for AI agents. Remote server at anvil.usefulapi.io.

m190/usefulapi-mcp · not measured