SPM vs io.github.Mars-proj/verifiable-memory
SPM is an MCP server published by spmos.ai. Marketplaces we read that list it: 1 (Official MCP Registry). io.github.Mars-proj/verifiable-memory is an MCP server published by Mars-proj. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-28. 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 |  SPM | |
|---|---|---|
| Official MCP Registry | Listed Version: 3.0.0 No figure published Not marked · First seen |
Listed Version: 0.1.2 Downloads/month (PyPI): 114 Downloads/week (PyPI): 30 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 | SPM | io.github.Mars-proj/verifiable-memory |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Last release | Not published | Not published |
| Where it runs (differs) | Remote server (api.spmos.ai/mcp) | On your machine (verifiable-memory-mcp) |
| Transport (differs) | Streamable HTTP | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Licence | Not stated | Not stated |
| Repository | Not stated | Not stated |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | Responded 6 days ago, requires a key | no remote endpoint we check |
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
SPM
Agent memory that refuses to guess: evidence-gated recall, exact-source reads, verifiable deletion.
io.github.Mars-proj/verifiable-memory
Memory for AI agents that can't hallucinate — cited or abstains, provable forget, deterministic.
How to run each
SPM As a remote MCP server
claude mcp add --transport http spm https://api.spmos.ai/mcp --header "Authorization: Bearer <YOUR_TOKEN>"Requires: Authorization header
io.github.Mars-proj/verifiable-memory As a local MCP server: PyPI package
claude mcp add --transport stdio verifiable-memory -- uvx verifiable-memory-mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Only SPM has a remote endpoint we check. How we check endpoints
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: SPM · What it can do: io.github.Mars-proj/verifiable-memory · 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.