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Engraphy

L0· runs locally

Self-hosted MCP memory server: a typed knowledge graph on Postgres 16 and pgvector.

v0.3.0 · active · repository · descriptor JSON · versions

Runs on your machine: something must execute the package.Only local packages are published (npm, PyPI, OCI, …). The registry never executes them, so tools are unknown until you run it.
Quality–not scored
Trust86of 100
Packages1
Tools seen0

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "engraphy": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "ENGRAPHY_DATABASE_URL",
        "-e",
        "ENGRAPHY_BIND_HOST",
        "-e",
        "ENGRAPHY_BIND_PORT",
        "ghcr.io/devon-clarkk/engraphy:0.3.0"
      ],
      "env": {
        "ENGRAPHY_DATABASE_URL": "${ENGRAPHY_DATABASE_URL}",
        "ENGRAPHY_BIND_HOST": "127.0.0.1",
        "ENGRAPHY_BIND_PORT": "8000"
      }
    }
  }
}
claude mcp add engraphy -e "ENGRAPHY_DATABASE_URL=${ENGRAPHY_DATABASE_URL}" -e "ENGRAPHY_BIND_HOST=127.0.0.1" -e "ENGRAPHY_BIND_PORT=8000" -- docker run -i --rm -e ENGRAPHY_DATABASE_URL -e ENGRAPHY_BIND_HOST -e ENGRAPHY_BIND_PORT ghcr.io/devon-clarkk/engraphy:0.3.0
[mcp_servers.engraphy]
command = "docker"
args = ["run", "-i", "--rm", "-e", "ENGRAPHY_DATABASE_URL", "-e", "ENGRAPHY_BIND_HOST", "-e", "ENGRAPHY_BIND_PORT", "ghcr.io/devon-clarkk/engraphy:0.3.0"]
env = { "ENGRAPHY_DATABASE_URL" = "${ENGRAPHY_DATABASE_URL}", "ENGRAPHY_BIND_HOST" = "127.0.0.1", "ENGRAPHY_BIND_PORT" = "8000" }

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "engraphy": {
      "type": "local",
      "command": [
        "docker",
        "run",
        "-i",
        "--rm",
        "-e",
        "ENGRAPHY_DATABASE_URL",
        "-e",
        "ENGRAPHY_BIND_HOST",
        "-e",
        "ENGRAPHY_BIND_PORT",
        "ghcr.io/devon-clarkk/engraphy:0.3.0"
      ],
      "enabled": true,
      "environment": {
        "ENGRAPHY_DATABASE_URL": "{env:ENGRAPHY_DATABASE_URL}",
        "ENGRAPHY_BIND_HOST": "127.0.0.1",
        "ENGRAPHY_BIND_PORT": "8000"
      }
    }
  }
}
{
  "mcpServers": {
    "engraphy": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "ENGRAPHY_DATABASE_URL",
        "-e",
        "ENGRAPHY_BIND_HOST",
        "-e",
        "ENGRAPHY_BIND_PORT",
        "ghcr.io/devon-clarkk/engraphy:0.3.0"
      ],
      "env": {
        "ENGRAPHY_DATABASE_URL": "${ENGRAPHY_DATABASE_URL}",
        "ENGRAPHY_BIND_HOST": "127.0.0.1",
        "ENGRAPHY_BIND_PORT": "8000"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=engraphy&config=eyJjb21tYW5kIjoiZG9ja2VyIiwiYXJncyI6WyJydW4iLCItaSIsIi0tcm0iLCItZSIsIkVOR1JBUEhZX0RBVEFCQVNFX1VSTCIsIi1lIiwiRU5HUkFQSFlfQklORF9IT1NUIiwiLWUiLCJFTkdSQVBIWV9CSU5EX1BPUlQiLCJnaGNyLmlvL2Rldm9uLWNsYXJray9lbmdyYXBoeTowLjMuMCJdLCJlbnYiOnsiRU5HUkFQSFlfREFUQUJBU0VfVVJMIjoiJHtFTkdSQVBIWV9EQVRBQkFTRV9VUkx9IiwiRU5HUkFQSFlfQklORF9IT1NUIjoiMTI3LjAuMC4xIiwiRU5HUkFQSFlfQklORF9QT1JUIjoiODAwMCJ9fQ%3D%3D"
}
{
  "servers": {
    "engraphy": {
      "type": "stdio",
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "ENGRAPHY_DATABASE_URL",
        "-e",
        "ENGRAPHY_BIND_HOST",
        "-e",
        "ENGRAPHY_BIND_PORT",
        "ghcr.io/devon-clarkk/engraphy:0.3.0"
      ],
      "env": {
        "ENGRAPHY_DATABASE_URL": "${ENGRAPHY_DATABASE_URL}",
        "ENGRAPHY_BIND_HOST": "127.0.0.1",
        "ENGRAPHY_BIND_PORT": "8000"
      }
    }
  }
}
{
  "mcpServers": {
    "engraphy": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "ENGRAPHY_DATABASE_URL",
        "-e",
        "ENGRAPHY_BIND_HOST",
        "-e",
        "ENGRAPHY_BIND_PORT",
        "ghcr.io/devon-clarkk/engraphy:0.3.0"
      ],
      "env": {
        "ENGRAPHY_DATABASE_URL": "${ENGRAPHY_DATABASE_URL}",
        "ENGRAPHY_BIND_HOST": "127.0.0.1",
        "ENGRAPHY_BIND_PORT": "8000"
      }
    }
  }
}
extensions:
  "engraphy":
    enabled: true
    name: "engraphy"
    type: stdio
    cmd: "docker"
    args:
      - "run"
      - "-i"
      - "--rm"
      - "-e"
      - "ENGRAPHY_DATABASE_URL"
      - "-e"
      - "ENGRAPHY_BIND_HOST"
      - "-e"
      - "ENGRAPHY_BIND_PORT"
      - "ghcr.io/devon-clarkk/engraphy:0.3.0"
    envs:
      "ENGRAPHY_DATABASE_URL": "${ENGRAPHY_DATABASE_URL}"
      "ENGRAPHY_BIND_HOST": "127.0.0.1"
      "ENGRAPHY_BIND_PORT": "8000"
    timeout: 300

Placeholders to fill from your own secret store: ${ENGRAPHY_DATABASE_URL}. The registry never accepts secret values.

This is a local package: the command runs on your machine.

Quality – / 100not scored

Not scored: fewer than three checks apply, usually because no remote answered a credential-free probe or the server is a local package.

protocoln/a · weight 25
  • n/a
    protocol.modern, protocol.stateless, protocol.transport, protocol.list_ttlno remote answered a protocol handshake (not probed yet, unreachable, or local-only)
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygienen/a · weight 30
  • n/a
    tools.descriptions, tools.description_length, tools.schemas, tools.annotations, tools.directory_hints, tools.token_cost, tools.api_dumptool list unknown (behind auth, not probed, or empty)
stabilityn/a · weight 15
  • n/a
    stability.changes, stability.rug_pulltool list unknown
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

Tool list unknown · checked 2026-10-19 16:53 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 86 / 100

provenance80
livenessn/a
freshness85
hygiene95

+repository +namespace-matches-repo ~liveness-unmeasured ~updated-32d-ago -unpinned-packages(1)

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

packageregistryversionruntimesecrets
ghcr.io/devon-clarkk/engraphy:0.3.0ociunpinned–ENGRAPHY_DATABASE_URL

Tools (0)

No tools observed. Local packages are never executed by the registry.

Schemas: list_tools.

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Official server.json
{
  "name": "io.github.devon-clarkk/engraphy",
  "_meta": {
    "io.modelcontextprotocol.registry/publisher-provided": {
      "tech.engraphy": {
        "license": "BSL-1.1, converting to Apache-2.0 on 2030-08-22",
        "website": "https://engraphy.tech",
        "requires": "Postgres 16 with pgvector, and a bearer token issued by engraphy-admin",
        "adminImage": "ghcr.io/devon-clarkk/engraphy-admin",
        "toolReference": "https://github.com/devon-clarkk/engraphy/blob/main/docs/04-tools-reference.md",
        "deploymentGuide": "https://github.com/devon-clarkk/engraphy/blob/main/docs/05-deployment.md"
      }
    }
  },
  "title": "Engraphy",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "version": "0.3.0",
  "packages": [
    {
      "transport": {
        "url": "http://localhost:8000/mcp/",
        "type": "streamable-http",
        "headers": [
          {
            "name": "Authorization",
            "isSecret": true,
            "isRequired": true,
            "description": "Bearer <token>, where the token is issued by `engraphy-admin token create` against the space the client is entitled to. Every request to /mcp/ carries it; an unauthenticated call is refused with HTTP 401."
          }
        ]
      },
      "identifier": "ghcr.io/devon-clarkk/engraphy:0.3.0",
      "registryType": "oci",
      "environmentVariables": [
        {
          "name": "ENGRAPHY_DATABASE_URL",
          "isSecret": true,
          "isRequired": true,
          "description": "libpq connection string for a Postgres 16 database with the pgvector extension, reached as the non-superuser `engraphy_app` role. Required: the server refuses to start without it, and refuses to start if the schema is behind (run `engraphy-admin migrate` first)."
        },
        {
          "name": "ENGRAPHY_BIND_HOST",
          "default": "127.0.0.1",
          "description": "Interface the server binds. Containers reach their own loopback only, so a published container sets 0.0.0.0 and puts the boundary at the port publication and the reverse proxy."
        },
        {
          "name": "ENGRAPHY_BIND_PORT",
          "format": "number",
          "default": "8000",
          "description": "Port the server binds inside the container, matching the port in the transport URL."
        }
      ]
    }
  ],
  "repository": {
    "id": "1342519094",
    "url": "https://github.com/devon-clarkk/engraphy",
    "source": "github"
  },
  "description": "Self-hosted MCP memory server: a typed knowledge graph on Postgres 16 and pgvector."
}