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Comparison

PDF Viewer vs Task402 Agent Evidence Tools

PDF Viewer is a plugin bundle for AI coding tools published by Anthropic. Marketplaces we read that list it: 1 (Claude: knowledge-work-plugins). Task402 Agent Evidence Tools is an MCP server published by task402.xyz. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-16. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.

Where each is published

Where each is published
MarketplacePDF ViewerTask402 Agent Evidence Tools
Claude: knowledge-work-plugins Listed
Version: 0.2.0
Forks (GitHub): 3 369
Stars (GitHub): 29 771
Not marked · First seen
Not listed
Official MCP Registry Not listed Listed
Version: 0.3.2
Forks (GitHub): 0
Stars (GitHub): 0
Not marked · First seen

Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.

The facts side by side

PDF Viewer vs Task402 Agent Evidence Tools
FactPDF ViewerTask402 Agent Evidence Tools
Marketplaces that list it11
Stars (GitHub) (differs)29 771 (better)0 (worse)
Forks (GitHub) (differs)3 369 (better)0 (worse)
Last release (differs)Not published2026-10-12
Where it runs (differs)On your machine (@modelcontextprotocol/server-pdf)Remote server (task402.xyz/mcp)
Transport (differs)Not statedStreamable HTTP
Tools it declaresNot publishedNot published
Environment variables it asks forNot publishedNot published
Parts of the bundle (differs)6Not a bundle
LicenceNot statedNot stated
Repository (differs)github.com/anthropics/knowledge-work-pluginsgithub.com/xbckz/task402
Changes in the last 7 days (differs)04
First seen2026-10-112026-10-11
Endpoint at the last check (differs)no remote endpoint we checkResponded 2 days ago

Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.

What each says it does

PDF Viewer

In its own words, on Claude: knowledge-work-plugins:

View, annotate, and sign PDFs in a live interactive viewer. Mark up contracts, fill forms with visual feedback, stamp approvals, and place signatures — then download the annotated copy.

Task402 Agent Evidence Tools

In its own words, on Official MCP Registry:

Paid evidence tools for PDFs, public webpages, OpenAPI contracts, and Base chain data for AI agents.

How to run each

PDF Viewer As a Claude Code plugin

Claude Code
/plugin marketplace add anthropics/knowledge-work-plugins
/plugin install pdf-viewer@knowledge-work-plugins

Task402 Agent Evidence Tools As a remote MCP server

Claude Code
claude mcp add --transport http x402-docs https://task402.xyz/mcp

Commands built only from what the marketplaces declare; the full set for every client is on each card.

Only Task402 Agent Evidence Tools has a remote endpoint we check. How we check endpoints

Tools each declares

Neither the marketplaces of PDF Viewer nor its endpoint list any tools, so we do not compare tools.

Settings each asks for

Neither one's marketplaces publish the settings it asks for.

What it can do: PDF Viewer · What it can do: Task402 Agent Evidence Tools · Compare two other plugins

Data comes from the public marketplace file https://github.com/anthropics/knowledge-work-plugins/blob/HEAD/.claude-plugin/marketplace.json. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.

Where the data comes from: how the catalog is built