MCPLow riskUnclaimed
GrayMatter
Secure durable memory and bounded context for AI agents, with hosted OAuth and local Lite support.
ValkyrLabsvalkyrlabs/graymatter
server.json
{
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"name": "io.github.ValkyrLabs/graymatter",
"description": "Secure durable memory and bounded context for AI agents, with hosted OAuth and local Lite support.",
"title": "GrayMatter",
"repository": {
"url": "https://github.com/ValkyrLabs/GrayMatter",
"source": "github"
},
"version": "0.3.3",
"websiteUrl": "https://github.com/ValkyrLabs/GrayMatter",
"remotes": [
{
"type": "streamable-http",
"url": "https://api-0.valkyrlabs.com/graymatter/mcp"
}
],
"_meta": {
"io.modelcontextprotocol.registry/publisher-provided": {
"authentication": {
"authorizationServerMetadataUrl": "https://api-0.valkyrlabs.com/.well-known/oauth-authorization-server",
"hostedAccountRequired": true,
"protectedResourceMetadataUrl": "https://api-0.valkyrlabs.com/.well-known/oauth-protected-resource",
"type": "oauth2"
},
"installationDocumentationUrl": "https://github.com/ValkyrLabs/GrayMatter/blob/main/docs/mcp-registry.md",
"localLite": {
"documentationUrl": "https://github.com/ValkyrLabs/GrayMatter/blob/main/docs/graymatter-light.md",
"hostedAccountRequired": false,
"installation": "Separate source or GrayMatter extension setup; this listing installs the hosted connection.",
"registryPackagePublished": false
},
"publisher": {
"name": "Valkyr Labs",
"url": "https://github.com/ValkyrLabs"
},
"supportUrl": "https://github.com/ValkyrLabs/GrayMatter/issues"
}
}
}Permissions
DeclaredDetected
Runs code—None
Installs—None
Runs install scripts—None
Network
api-0.valkyrlabs.comapi-0.valkyrlabs.comNeeds credentialsNoneNone
Outside the workspace—None
Agent tools—None
Checks
Low risk · Nothing worth a warning was found.
Not reviewed by a person · Checked by rules; the model review is not switched on yet.
Versions
- #10.3.3latestOct 7, 2026
GrayMatterOpen in Codeg