materials
Read-only sourced engineering materials data: every value with unit, conditions and source.
What it does
materials is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.
No capability identified yet from its description.
Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence). None of this is a test of the tool.
At a glance
How to connect
As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 13h ago (live check)Hosted endpoint
https://spacemushroom.com/mcpstreamable-http
In Claude Code: claude mcp add --transport http materials-1 https://spacemushroom.com/mcp
MCP settings (Claude Desktop, Cursor and other MCP clients)
{
"mcpServers": {
"materials-1": {
"url": "https://spacemushroom.com/mcp"
}
}
}Live check
Electra Index connected to the hosted endpoint 13h agoONLINE materials answered an MCP connection on 02 Nov 2026 and introduced itself as space-mushroom 0.1.0 (MCP protocol 2025-06-18).
11 tools offered to AI assistants
search_materials· Find materials by name, abbreviation or formula. Optionally filter by category slug (for example polymers, metals, energy). Returns ids to use with get_material.get_material· The sourced record of one material: sourced numbers with conditions, method and source location, plus uses, hazards, failure modes, corrosion and supply facts. Optionally narrow to one property or fact topic.compare· Line several materials up on one property, with each value, its conditions and its source. Values are also given in the property's canonical unit (value_canonical), so they can be ranked directly. Values measured under different conditionslist_properties· The property names in use, with their canonical unit and whether higher or lower is better. Use these names with get_material and compare.get_term· A plain-language definition of a technical term or abbreviation used on material pages, for example ARC, SoC or adiabatic.find_materials· Requirements in, candidates out. Each material gets a verdict: pass (every constraint met by a sourced value), fail, or unknown (no data on a constraint, so it cannot be ruled in or out). Every constraint reports pass, fail or no_data and tlist_claims· Every current sourced value for one material (optionally one property) in canonical units, with evidence level and a claim_id. Use the claim_id with prove_claim to see the exact source and passage.prove_claim· Everything behind one value: as printed in the source, converted, the evidence level and what it means, the conditions, and each source with the place in it (and the passage where we have it).what_is_missing· For one material and a list of properties: which have sourced data (and the strongest evidence) and which have none. "no_data" means not covered yet, not known to be safe.resolve_designation· Which material a code names: a UNS number, EN number or name, DIN, JIS, AISI or SAE number, ASTM or AMS specification, or trade name (for example S31600, 1.4401, SUS316, A240). Case, spaces and hyphens do not matter, and a short code also lsearch_sources· Full-text search over short passages quoted from our sources. Returns the passage, the source and the place in it. Passages are still being added, so an empty answer means none indexed yet.
What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method
Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. Launch offer: $39.99 once, for life.
Facts & evidence
Each fact shows where it was seen and when.| Fact | Value | Evidence | Source | Last confirmed |
|---|---|---|---|---|
| Hosted endpoint | https://spacemushroom.com/mcp | DECLARED | SRC-001 Official MCP Registry | 13h ago |
| Local install (package) | no | DECLARED | SRC-001 Official MCP Registry | 13h ago |
| Remote access (hosted) | yes | DECLARED | SRC-001 Official MCP Registry | 13h ago |
| Website | https://spacemushroom.com | DECLARED | SRC-001 Official MCP Registry | 13h ago |
| Repository | https://github.com/simulsarker007/space-mushroom-mcp | DECLARED | SRC-001 Official MCP Registry | 13h ago |
| Registry status | active | DECLARED | SRC-001 Official MCP Registry | 13h ago |
| Version | 0.1.0 | DECLARED | SRC-001 Official MCP Registry | 13h ago |
| MCP server | yes | DECLARED | SRC-001 Official MCP Registry | 13h ago |
Change history
- NEW02 Nov 2026first seen in the index
Is this page accurate?
Flag it and our robot re-checks the official source. Reports never change a score.Is materials still online?
Free alerts · no account▲ 0Do you run materials? Know when it stops answering
For publishers · optionalIts hosted endpoint can be monitored. Monitoring Pro connects every 30 minutes like an AI assistant, emails you within the hour when it stops answering, keeps a 90-day availability history and adds your answer rate to your badge.
Monitoring never changes a score or a rank.
Are you the publisher of materials?
Free · show your listingAn independent listing builds trust with your buyers. Announce it, and add the badge to your website or README.
<a href="https://electraindex.com/mcp/materials-1?utm_source=badge&utm_medium=share&utm_campaign=listing"><img src="https://electraindex.com/api/badge/materials-1" alt="Listed on Electra Index"></a>Questions about materials
How do I connect materials?
Use the hosted endpoint https://spacemushroom.com/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.
What tools does materials offer?
When Electra Index connected on 02 Nov 2026, it listed 11 tools: search_materials, get_material, compare, list_properties, get_term, find_materials, list_claims, prove_claim and more. The full list is in "Live check" above.
Is materials online?
Yes. Its hosted endpoint answered an MCP connection from Electra Index 13h ago.