io.github.Mars-proj/verifiable-memory vs Factum
io.github.Mars-proj/verifiable-memory is an MCP server published by Mars-proj. Marketplaces we read that list it: 1 (Official MCP Registry). Factum is an MCP server published by factum-project. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-22. 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
| Marketplace |  Factum | |
|---|---|---|
| Official MCP Registry | Listed Version: 0.1.2 Downloads/month (PyPI): 114 Downloads/week (PyPI): 19 Not marked · First seen |
Listed Version: 0.1.3 Forks (GitHub): 0 Stars (GitHub): 3 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
| Fact | io.github.Mars-proj/verifiable-memory | Factum |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | No figure on GitHub | 3 |
| Forks (GitHub) (differs) | No figure on GitHub | 0 |
| Last release | Not published | Not published |
| Where it runs (differs) | On your machine (verifiable-memory-mcp) | On your machine (factum-mcp) |
| Transport | stdio | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Licence | Not stated | Not stated |
| Repository (differs) | Not stated | github.com/factum-project/factum |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
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
io.github.Mars-proj/verifiable-memory
Memory for AI agents that can't hallucinate — cited or abstains, provable forget, deterministic.
Factum
Auditable memory for AI agents: provenance, cascade retraction, conflict refusal
How to run each
io.github.Mars-proj/verifiable-memory As a local MCP server: PyPI package
claude mcp add --transport stdio verifiable-memory -- uvx verifiable-memory-mcpFactum
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.
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: io.github.Mars-proj/verifiable-memory · What it can do: Factum · Compare two other plugins
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.