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{
  "mcpServers": {
    "fieldtwin": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]",
        "mcp"
      ],
      "env": {
        "FIELDTWIN_PORT": "4010",
        "FIELDTWIN_HOST": "127.0.0.1",
        "FIELDTWIN_AUTH": "any-token",
        "FIELDTWIN_SEED": "42"
      }
    }
  }
}

claude mcp add fieldtwin -e "FIELDTWIN_PORT=4010" -e "FIELDTWIN_HOST=127.0.0.1" -e "FIELDTWIN_AUTH=any-token" -e "FIELDTWIN_SEED=42" -- npx -y [email protected] mcp

[mcp_servers.fieldtwin]
command = "npx"
args = ["-y", "[email protected]", "mcp"]
env = { "FIELDTWIN_PORT" = "4010", "FIELDTWIN_HOST" = "127.0.0.1", "FIELDTWIN_AUTH" = "any-token", "FIELDTWIN_SEED" = "42" }

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "fieldtwin": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "[email protected]",
        "mcp"
      ],
      "enabled": true,
      "environment": {
        "FIELDTWIN_PORT": "4010",
        "FIELDTWIN_HOST": "127.0.0.1",
        "FIELDTWIN_AUTH": "any-token",
        "FIELDTWIN_SEED": "42"
      }
    }
  }
}

{
  "mcpServers": {
    "fieldtwin": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]",
        "mcp"
      ],
      "env": {
        "FIELDTWIN_PORT": "4010",
        "FIELDTWIN_HOST": "127.0.0.1",
        "FIELDTWIN_AUTH": "any-token",
        "FIELDTWIN_SEED": "42"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=fieldtwin&config=eyJjb21tYW5kIjoibnB4IiwiYXJncyI6WyIteSIsImZpZWxkdHdpbkAwLjUuMyIsIm1jcCJdLCJlbnYiOnsiRklFTERUV0lOX1BPUlQiOiI0MDEwIiwiRklFTERUV0lOX0hPU1QiOiIxMjcuMC4wLjEiLCJGSUVMRFRXSU5fQVVUSCI6ImFueS10b2tlbiIsIkZJRUxEVFdJTl9TRUVEIjoiNDIifX0%3D"
}

{
  "servers": {
    "fieldtwin": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "[email protected]",
        "mcp"
      ],
      "env": {
        "FIELDTWIN_PORT": "4010",
        "FIELDTWIN_HOST": "127.0.0.1",
        "FIELDTWIN_AUTH": "any-token",
        "FIELDTWIN_SEED": "42"
      }
    }
  }
}

{
  "mcpServers": {
    "fieldtwin": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]",
        "mcp"
      ],
      "env": {
        "FIELDTWIN_PORT": "4010",
        "FIELDTWIN_HOST": "127.0.0.1",
        "FIELDTWIN_AUTH": "any-token",
        "FIELDTWIN_SEED": "42"
      }
    }
  }
}

extensions:
  "fieldtwin":
    enabled: true
    name: "fieldtwin"
    type: stdio
    cmd: "npx"
    args:
      - "-y"
      - "[email protected]"
      - "mcp"
    envs:
      "FIELDTWIN_PORT": "4010"
      "FIELDTWIN_HOST": "127.0.0.1"
      "FIELDTWIN_AUTH": "any-token"
      "FIELDTWIN_SEED": "42"
    timeout: 300

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.resolvabledeps.dev does not know [email protected]

Tool list unknown · checked 2026-11-07 18:35 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 96 / 100

provenance90

livenessn/a

freshness100

hygiene100

+repository +namespace-matches-repo +website ~liveness-unmeasured +updated-9d-ago

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

Dependencies

[email protected] npmthis version is not known to the dependency resolver

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0. The graph is what a clean install of this version resolves today; nothing was installed or run. How it is checked.

Endpoints

package	registry	version	runtime	secrets
`fieldtwin`	npm	0.5.3	npx

Tools (0)

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

Schemas: list_tools.

Similar MCP servers

More from io.github.nickgeorgeseo

Official server.json

{
  "name": "io.github.nickgeorgeseo/fieldtwin",
  "title": "fieldtwin",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "version": "0.5.3",
  "packages": [
    {
      "version": "0.5.3",
      "transport": {
        "type": "stdio"
      },
      "identifier": "fieldtwin",
      "runtimeHint": "npx",
      "registryType": "npm",
      "registryBaseUrl": "https://registry.npmjs.org",
      "packageArguments": [
        {
          "type": "positional",
          "value": "mcp"
        }
      ],
      "environmentVariables": [
        {
          "name": "FIELDTWIN_PORT",
          "format": "number",
          "default": "4010",
          "description": "The port the twin listens on. The MCP server starts a twin of its own, so pick another port if one already runs on 4010."
        },
        {
          "name": "FIELDTWIN_HOST",
          "default": "127.0.0.1",
          "description": "The address the twin listens on. Keep the loopback address unless something else must reach the twin."
        },
        {
          "name": "FIELDTWIN_AUTH",
          "choices": [
            "any-token",
            "oauth"
          ],
          "default": "any-token",
          "description": "any-token accepts any Bearer token; oauth accepts only tokens from the twin's OAuth endpoints."
        },
        {
          "name": "FIELDTWIN_SEED",
          "format": "number",
          "default": "42",
          "description": "Which fake business to generate: the same seed builds the same world."
        }
      ]
    }
  ],
  "repository": {
    "id": "1412581362",
    "url": "https://github.com/nickgeorgeseo/fieldtwin",
    "source": "github"
  },
  "websiteUrl": "https://nickgeorgeai.com/fieldtwin",
  "description": "Local, stateful twins of the Jobber, Housecall Pro, and QuickBooks Online APIs, for agents and tests"
}