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8 clients · secrets stay placeholders

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{
  "mcpServers": {
    "402sentinel-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@kaditang/[email protected]"
      ],
      "env": {
        "CLIENT_PRIVATE_KEY": "${CLIENT_PRIVATE_KEY}",
        "SENTINEL_URL": "${SENTINEL_URL}"
      }
    }
  }
}

claude mcp add 402sentinel-mcp -e "CLIENT_PRIVATE_KEY=${CLIENT_PRIVATE_KEY}" -e "SENTINEL_URL=${SENTINEL_URL}" -- npx -y @kaditang/[email protected]

[mcp_servers.402sentinel-mcp]
command = "npx"
args = ["-y", "@kaditang/[email protected]"]
env = { "CLIENT_PRIVATE_KEY" = "${CLIENT_PRIVATE_KEY}", "SENTINEL_URL" = "${SENTINEL_URL}" }

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "402sentinel-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@kaditang/[email protected]"
      ],
      "enabled": true,
      "environment": {
        "CLIENT_PRIVATE_KEY": "{env:CLIENT_PRIVATE_KEY}",
        "SENTINEL_URL": "{env:SENTINEL_URL}"
      }
    }
  }
}

{
  "mcpServers": {
    "402sentinel-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@kaditang/[email protected]"
      ],
      "env": {
        "CLIENT_PRIVATE_KEY": "${CLIENT_PRIVATE_KEY}",
        "SENTINEL_URL": "${SENTINEL_URL}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=402sentinel-mcp&config=eyJjb21tYW5kIjoibnB4IiwiYXJncyI6WyIteSIsIkBrYWRpdGFuZy80MDJzZW50aW5lbC1tY3BAMC45LjAiXSwiZW52Ijp7IkNMSUVOVF9QUklWQVRFX0tFWSI6IiR7Q0xJRU5UX1BSSVZBVEVfS0VZfSIsIlNFTlRJTkVMX1VSTCI6IiR7U0VOVElORUxfVVJMfSJ9fQ%3D%3D"
}

{
  "servers": {
    "402sentinel-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@kaditang/[email protected]"
      ],
      "env": {
        "CLIENT_PRIVATE_KEY": "${CLIENT_PRIVATE_KEY}",
        "SENTINEL_URL": "${SENTINEL_URL}"
      }
    }
  }
}

{
  "mcpServers": {
    "402sentinel-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@kaditang/[email protected]"
      ],
      "env": {
        "CLIENT_PRIVATE_KEY": "${CLIENT_PRIVATE_KEY}",
        "SENTINEL_URL": "${SENTINEL_URL}"
      }
    }
  }
}

extensions:
  "402sentinel-mcp":
    enabled: true
    name: "402sentinel-mcp"
    type: stdio
    cmd: "npx"
    args:
      - "-y"
      - "@kaditang/[email protected]"
    envs:
      "CLIENT_PRIVATE_KEY": "${CLIENT_PRIVATE_KEY}"
      "SENTINEL_URL": "${SENTINEL_URL}"
    timeout: 300

Placeholders to fill from your own secret store: ${CLIENT_PRIVATE_KEY}. 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.resolvabledeps.dev does not know @kaditang/[email protected]

Tool list unknown · checked 2026-10-20 14:21 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 91 / 100

provenance80

livenessn/a

freshness100

hygiene100

+repository +namespace-matches-repo ~liveness-unmeasured +updated-2d-ago

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

Dependencies

@kaditang/[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
`@kaditang/402sentinel-mcp`	npm	0.9.0	–	`CLIENT_PRIVATE_KEY`

Tools (0)

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

Schemas: list_tools.

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More from io.github.kaditang

Official server.json

{
  "name": "io.github.kaditang/402sentinel-mcp",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "version": "0.9.0",
  "packages": [
    {
      "version": "0.9.0",
      "transport": {
        "type": "stdio"
      },
      "identifier": "@kaditang/402sentinel-mcp",
      "registryType": "npm",
      "environmentVariables": [
        {
          "name": "CLIENT_PRIVATE_KEY",
          "format": "string",
          "isSecret": true,
          "isRequired": true,
          "description": "A Base wallet holding USDC on-chain (no gas needed) — pays per call, from $0.002."
        },
        {
          "name": "SENTINEL_URL",
          "format": "string",
          "isRequired": true,
          "description": "Required since 0.9.0 (the hosted service was retired on 2026-10-31): base URL of a 402Sentinel server you trust. 402sentinel.com is refused."
        }
      ]
    }
  ],
  "repository": {
    "url": "https://github.com/kaditang/402sentinel-mcp",
    "source": "github"
  },
  "description": "DEPRECATED: hosted 402Sentinel retired 2026-10-31. Client for x402 payment-safety checks."
}