---
bezeichner: "work.nacre/nacre"
art: "mcp_server"
slug: "work-nacre-nacre"
paketkoordinate: "npm:@nacre.work/mcp"
status: "aktiv"
homepage: "https://nacre.work"
erhebungsstand: "2026-10-11T01:17:01.851Z"
namensraum: "work.nacre"
registerseite: "https://tracevero.com/mcp/work-nacre-nacre"
abgerufen_am: "2026-10-11"
zugangsdaten_erforderlich: true
ausfuehrungsort: "lokal"
dateisystem_pfadargument: false
quelloffen_einsehbar: true
roh_beschreibung: "Self-hosted permission-aware context layer. Search returns only what the caller may read."
version: "0.26.4"
roh_umgebungsvariablen: "NACRE_SERVICE_KEY"
roh_geheime_pflichtvariablen: "NACRE_SERVICE_KEY"
roh_transportarten: "stdio"
roh_pfadargumente: ""
roh_repository_url: "https://github.com/nacre-work/nacre"
roh_paketquellen: "npm"
roh_geheime_pflichtkopfzeilen: ""
roh_pfad_umgebungsvariablen: ""
roh_remote_adressen: ""
roh_remote_hosts: ""
roh_statusmeldung: ""
roh_veroeffentlicht_am: "2026-09-25"
roh_aktualisiert_am: "2026-09-25"
roh_schemafassung: "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json"
roh_bereitstellungsform: "paket"
roh_repository_quelle: "github"
roh_repository_unterordner: ""
roh_paketbezeichner: "@nacre.work/mcp"
roh_paketversionen: "0.26.4"
roh_laufzeithinweise: ""
roh_umgebungsformate: "string"
roh_umgebungsbeschreibungen: "NACRE_SERVICE_KEY=Service-account key for STDIO mode. The server also needs the deployment's full environment (database and backend configuration) - see docs/mcp.md; the key alone is not enough to start it."
roh_symbolformate: ""
roh_verbindungswege: "{\"packages\":[{\"registryType\":\"npm\",\"identifier\":\"@nacre.work/mcp\",\"version\":\"0.26.4\",\"transport\":\"stdio\",\"environment\":[{\"name\":\"NACRE_SERVICE_KEY\",\"description\":\"Service-account key for STDIO mode. The server also needs the deployment's full environment (database and backend configuration) - see docs/mcp.md; the key alone is not enough to start it.\",\"format\":\"string\",\"required\":true,\"secret\":true}],\"additional_arguments_declared\":false}],\"remotes\":[]}"
---

# Nacre

## Measured values

| Property | Value | Source | Collected on | Level of trust | Raw declaration |
| --- | --- | --- | --- | --- | --- |
| Required secrets declared | true | MCP-Register | 2026-09-26T01:17:01.503Z | abgeleitet | roh_geheime_pflichtvariablen: NACRE_SERVICE_KEY; roh_geheime_pflichtkopfzeilen: |
| Execution location | lokal | MCP-Register | 2026-09-26T01:17:01.503Z | abgeleitet | roh_transportarten: stdio |
| Path argument present | false | MCP-Register | 2026-09-26T01:17:01.503Z | abgeleitet | roh_pfadargumente: ; roh_pfad_umgebungsvariablen: |
| Repository URL listed | true | MCP-Register | 2026-09-26T01:17:01.503Z | abgeleitet | roh_repository_url: https://github.com/nacre-work/nacre |
| Description (raw) | Self-hosted permission-aware context layer. Search returns only what the caller may read. | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| Declared version | 0.26.4 | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| Environment variables (raw) | NACRE_SERVICE_KEY | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| Required secret variables (raw) | NACRE_SERVICE_KEY | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| Transports (raw) | stdio | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| Path arguments (raw) |  | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| Repository (raw) | https://github.com/nacre-work/nacre | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| Package registries (raw) | npm | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| Required secret headers (raw) |  | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| Path environment variables (raw) |  | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| Remote URLs (raw) |  | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| Remote hosts (raw) |  | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| Registry status message (raw) |  | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| First listed in the registry (raw) | 2026-09-25 | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| Last changed in the registry (raw) | 2026-09-25 | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| Schema version of the raw record (raw) | https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| Delivery form (raw) | paket | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| Repository platform (raw) | github | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| Repository subfolder (raw) |  | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| Package identifiers (raw) | @nacre.work/mcp | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| Package versions (raw) | 0.26.4 | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| Runtime hints (raw) |  | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| Environment variable formats (raw) | string | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| Environment variable descriptions (raw) | NACRE_SERVICE_KEY=Service-account key for STDIO mode. The server also needs the deployment's full environment (database and backend configuration) - see docs/mcp.md; the key alone is not enough to start it. | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| Icon formats (raw) |  | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |
| Connection paths (source structure) | {"packages":[{"registryType":"npm","identifier":"@nacre.work/mcp","version":"0.26.4","transport":"stdio","environment":[{"name":"NACRE_SERVICE_KEY","description":"Service-account key for STDIO mode. The server also needs the deployment's full environment (database and backend configuration) - see docs/mcp.md; the key alone is not enough to start it.","format":"string","required":true,"secret":true}],"additional_arguments_declared":false}],"remotes":[]} | MCP-Register | 2026-09-26T01:17:01.503Z | selbstauskunft |  |

## Links

- Namespace: [[namensraum/work-nacre|work.nacre]]

---

- Registry page: <https://tracevero.com/mcp/work-nacre-nacre>
- Retrieved on: 2026-10-11
