ITHZ MCP vs SUBSTRATE
ITHZ MCP is an MCP server published by ithz.dev. Marketplaces we read that list it: 1 (Official MCP Registry). SUBSTRATE is an MCP server published by PKaldone. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-18. 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 |  SUBSTRATE | |
|---|---|---|
| Official MCP Registry | Listed Version: 0.1.0a1 Downloads/month (PyPI): 160 Downloads/week (PyPI): 72 Not marked · First seen |
Listed Version: 1.0.1 Downloads/month (npm): 143 Downloads/week (npm): 34 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 | ITHZ MCP | SUBSTRATE |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Last release | Not published | Not published |
| Where it runs (differs) | On your machine (ithz-mcp) | Remote server (substrate.garmolabs.com/mcp-server/mcp) |
| Transport (differs) | stdio | Streamable HTTP |
| 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/pkaldone/substrate-mcp |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | no remote endpoint we check | Not responding since 2026-10-13 |
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
ITHZ MCP
Local deterministic project memory for AI agents with context packs, gates and checkpoints.
SUBSTRATE
Persistent AI entity framework with causal memory, emotional state, and identity.
How to run each
ITHZ MCP As a local MCP server: PyPI package
claude mcp add --transport stdio ithz-mcp -- uvx ithz-mcpSUBSTRATE As a remote MCP server
claude mcp add --transport http substrate https://substrate.garmolabs.com/mcp-server/mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Only SUBSTRATE 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: ITHZ MCP · What it can do: SUBSTRATE · 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.