Oqmd
NPM · @PIPEWORX/MCP-OQMD · 2 COMPONENTS
OQMD (Open Quantum Materials Database) MCP.
Available components
Last scanned (3 hours ago)
Scores higher than 76% of npm servers
Category Health and Science
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security100
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- No production dependencies, so there is no dependency health to assess. View diagnostics → Pass
Provenance & Transparency97
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to pipeworx-io/mcp-oqmd). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 1 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability67
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 581 tokens (~193/item across 3 items; 3 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management23
- Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 5 Nov 26 +16
- Malware scan: unverified → pass ▲ security
- 4 Nov 26 −15
- Malware scan: pass → unverified ▼ security
- Package version: 0.2.0 → 0.2.1 functional
- 3 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.
- 1 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.
- 30 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 0 to 3. That category is still filling its 30-day observation window: 0 days of observed history at the previous scan, 1 at this one. The score rises as the window fills, whether or not the server changes.
- 29 Oct 26 79
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Analysed npm/@pipeworx/mcp-oqmd@0.2.1
Provenance Verified
A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.
| Result | Verified |
|---|---|
| Ecosystem | npm |
| Reason | Verified |
| Discovered via | Registry attestation endpoint |
| Source repo | pipeworx-io/mcp-oqmd |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/pipeworx-io/mcp-oqmd/.github/workflows/publish.yml@refs/heads/main |
| Rekor log index | 3685182664 |
| Predicate type | SLSA build provenance https://slsa.dev/provenance/v1 |
| Subject digest | sha512:62c513d6a7ec42776a8d0449c536b1b48aaf9794ef89f3953acc334445ee4baf4c09ba3bf0a14c1713a8f22acd8656620454adbe49fc8fec1283e396d |
Background: How many MCP packages publish verified provenance →
Dependencies 0 packages
| Packages resolved | 0 |
|---|---|
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
get_material ~114
Fetch a single OQMD material by its entry_id (e.g. 16525 = the Pbcn polymorph of Fe2O3). Returns formation energy (eV/atom), stability above hull, band gap, space group, prototype, cell volume, atom/element counts, ICSD id, and generic composition. Keyless.
| Name | Type | Req | Description |
|---|---|---|---|
| entry_id | number | yes | OQMD entry_id, e.g. 16525 (Fe2O3, Pbcn). Get ids from search_materials results. |
No output schema declared.
No examples provided.
search_materials ~276
Search the Open Quantum Materials Database for DFT-computed inorganic materials by composition and/or constituent elements, with optional band-gap and thermodynamic-stability filters. Returns formation energy (eV/atom), energy above the convex hull (stability), band gap, space group, and prototype. Keyless. Provide at least `composition` or `element_set`.
| Name | Type | Req | Description |
|---|---|---|---|
| band_gap_min | number | – | Minimum band gap in eV (exclusive). e.g. 0.5 to find semiconductors/insulators. |
| composition | string | – | Exact composition, e.g. "Fe2O3", "LiCoO2". Matched as an exact stoichiometry. |
| element_set | string | – | Constituent elements the material must contain. Use OQMD set syntax: "(Al-O)" = contains Al or O; "(Fe-O),Ni" = (Fe or O) and Ni. A plain comma list like "Fe,O" is also accepted. |
| limit | number | – | Max results, default 10, max 25. |
| max_stability | number | – | Maximum energy above the convex hull in eV/atom (exclusive). 0 = exactly on the hull (thermodynamically stable / ground state). e.g. 0.05 keeps near-stable phases. |
No output schema declared.
No examples provided.
stable_phases ~138
List the ground-state (on-hull) phases of a chemical system — the thermodynamically stable compounds in OQMD for a given set of elements. e.g. "Fe-O" returns FeO, Fe2O3, Fe3O4. Restricts to materials made ONLY of the given elements with stability <= ~0 (on the convex hull). Keyless.
| Name | Type | Req | Description |
|---|---|---|---|
| elements | string | yes | A chemical system as dash- or comma-separated elements, e.g. "Fe-O", "Li-Fe-O", "Al,O". |
| limit | number | – | Max phases, default 15, max 30. |
No output schema declared.
No examples provided.
How do I install the Oqmd MCP server?
Oqmd runs locally as an npm package, launched with npx -y @pipeworx/mcp-oqmd. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · @pipeworx/mcp-oqmd
claude mcp add pipeworx-io-oqmd -- npx -y @pipeworx/mcp-oqmd
What is the Oqmd MCP server?
Oqmd is an MCP server listed in the public MCP registry as io.github.pipeworx-io/oqmd. OQMD (Open Quantum Materials Database) MCP. This page covers its npm package (@pipeworx/mcp-oqmd).
Is the Oqmd MCP server safe to use?
Oqmd scores 83 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Oqmd MCP server expose?
Oqmd exposes 3 tools: search_materials, get_material, stable_phases. Their descriptions and schemas cost roughly 528 tokens of context every time the server is loaded.
Is the Oqmd MCP server still maintained?
Oqmd is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the Oqmd MCP server under?
Oqmd declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.