exa vs Stipple — Reference Verification
Stipple — Reference Verification is no longer listed on any marketplace we read: these are its last known data, as of 2026‑10‑29.
exa is a plugin bundle for AI coding tools published by exa-labs. Marketplaces we read that list it: 4 (Claude Code: claude-plugins-official, Official MCP Registry, Docker MCP Catalog, Claude: knowledge-work-plugins). Stipple — Reference Verification is an MCP server published by stipple.sh. No marketplace we read lists it any more. As of our marketplace pass on 2026-11-13. A plugin in this pair is no longer listed on any marketplace we read, so search engines are asked not to index the page.
Where each is published
| Marketplace |  exa | |
|---|---|---|
| Claude Code: claude-plugins-official | Listed Version: 3.4.1 Forks (GitHub): 413 Stars (GitHub): 5 230 Not marked · First seen |
Not listed |
| Official MCP Registry | Listed Version: 3.4.1 Forks (GitHub): 413 Stars (GitHub): 5 230 Not marked · First seen |
Removed on 2026-10-29 Version: 0.1.5 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
| Docker MCP Catalog | Listed Version: sha256:d88edd571d98 Forks (GitHub): 413 Pulls (Docker Hub): 38 273 Stars (Docker Hub): 8 Stars (GitHub): 5 230 Not marked · First seen |
Not listed |
| Claude: knowledge-work-plugins | Listed Version: 3.4.1 Forks (GitHub): 413 Stars (GitHub): 5 230 Not marked · First seen |
Not listed |
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
| Fact | exa | Stipple — Reference Verificationno longer listed · |
|---|---|---|
| Marketplaces that list it (differs) | 4 | 0 |
| Stars (GitHub) (differs) | 5 230 | 0 |
| Pulls (Docker Hub) (differs) | 38 273 | No figure on Docker Hub |
| Forks (GitHub) (differs) | 413 | 0 |
| Last release | Not published | Not published |
| Where it runs (differs) | Remote server or your machine | Remote server (www.stipple.sh/mcp-verify) |
| Transport (differs) | Streamable HTTP, stdio | Streamable HTTP |
| Tools it declares (differs) | 2 | Not published |
| Environment variables it asks for (differs) | 1, secrets among them: 1 | Not published |
| Parts of the bundle (differs) | 3 | Not a bundle |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/exa-labs/exa-mcp-server | github.com/sketchjar/stipple-mcp |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | Responded 17 h ago | no remote endpoint we check |
Lines where the two differ have a tinted background and bold values. No value is marked better or worse: a plugin no marketplace lists any more is shown with its last known data, which we do not rank against current figures.
What to use instead of Stipple — Reference Verification
Plugins still listed whose own names, descriptions, tools and skills are closest in meaning to it. Comparable, not endorsed.
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Evidence-first entity and knowledge graph MCP server for AI agents to verify claims.
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Real-time fact-check, citation verification, and source-freshness for AI agents.
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Grounding/hallucination guard: verify a claim against evidence (Supported/Refuted/NEE).
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Checks whether each cited source supports the claim it backs. Blinded human-first, local-first.
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Verify claims with verdict, confidence & cited sources; batch verify, source checks, daily brief.
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WebCite MCP Server - verify AI claims against authoritative sources, bind quotes back to their source passage, and extract document figures deterministically. Works with any…
What each says it does
exa
Exa AI web search, deep research, and content extraction. Provides MCP tools and research skills for comprehensive web search, people discovery, company research, academic papers, and more.
Stipple — Reference Verification
Fact-check citations: resolve, match, support claims. Arithmetic rechecked. Free to start.
How to run each
exa As a Claude Code plugin
/plugin install exa@claude-plugins-officialStipple — Reference Verification
No data for an automatic command: what its marketplaces declare does not say unambiguously how to connect it.
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Only exa has a remote endpoint we check. How we check endpoints
Tools each declares
The marketplaces of Stipple — Reference Verification publish no list of tools, so we do not compare tools.
Settings each asks for
The marketplaces of Stipple — Reference Verification publish no settings it asks for, so we do not compare settings.
What it can do: exa · What it can do: Stipple — Reference Verification · Compare two other plugins
Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-official/blob/HEAD/.claude-plugin/marketplace.json. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Data comes from the Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. Data comes from the public marketplace file https://github.com/anthropics/knowledge-work-plugins/blob/HEAD/.claude-plugin/marketplace.json. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.