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8 clients · secrets stay placeholders

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{
  "mcpServers": {
    "base-facts-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "X402_PRIVATE_KEY": "${X402_PRIVATE_KEY}",
        "SESSION_BUDGET_USD": "1"
      }
    }
  }
}

claude mcp add base-facts-mcp -e "X402_PRIVATE_KEY=${X402_PRIVATE_KEY}" -e "SESSION_BUDGET_USD=1" -- npx -y [email protected]

[mcp_servers.base-facts-mcp]
command = "npx"
args = ["-y", "[email protected]"]
env = { "X402_PRIVATE_KEY" = "${X402_PRIVATE_KEY}", "SESSION_BUDGET_USD" = "1" }

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "base-facts-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "[email protected]"
      ],
      "enabled": true,
      "environment": {
        "X402_PRIVATE_KEY": "{env:X402_PRIVATE_KEY}",
        "SESSION_BUDGET_USD": "1"
      }
    }
  }
}

{
  "mcpServers": {
    "base-facts-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "X402_PRIVATE_KEY": "${X402_PRIVATE_KEY}",
        "SESSION_BUDGET_USD": "1"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=base-facts-mcp&config=eyJjb21tYW5kIjoibnB4IiwiYXJncyI6WyIteSIsImJhc2UtZmFjdHMtbWNwQDAuMi4zIl0sImVudiI6eyJYNDAyX1BSSVZBVEVfS0VZIjoiJHtYNDAyX1BSSVZBVEVfS0VZfSIsIlNFU1NJT05fQlVER0VUX1VTRCI6IjEifX0%3D"
}

{
  "servers": {
    "base-facts-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "X402_PRIVATE_KEY": "${X402_PRIVATE_KEY}",
        "SESSION_BUDGET_USD": "1"
      }
    }
  }
}

{
  "mcpServers": {
    "base-facts-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "X402_PRIVATE_KEY": "${X402_PRIVATE_KEY}",
        "SESSION_BUDGET_USD": "1"
      }
    }
  }
}

extensions:
  "base-facts-mcp":
    enabled: true
    name: "base-facts-mcp"
    type: stdio
    cmd: "npx"
    args:
      - "-y"
      - "[email protected]"
    envs:
      "X402_PRIVATE_KEY": "${X402_PRIVATE_KEY}"
      "SESSION_BUDGET_USD": "1"
    timeout: 300

Placeholders to fill from your own secret store: ${X402_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 [email protected]

Tool list unknown · checked 2026-10-20 17:02 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-14d-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
`base-facts-mcp`	npm	0.2.3	–	`X402_PRIVATE_KEY`

Tools (0)

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

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "io.github.yankiifr/base-facts-mcp",
  "title": "Base Token Facts",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "version": "0.2.3",
  "packages": [
    {
      "version": "0.2.3",
      "transport": {
        "type": "stdio"
      },
      "identifier": "base-facts-mcp",
      "registryType": "npm",
      "environmentVariables": [
        {
          "name": "X402_PRIVATE_KEY",
          "isSecret": true,
          "description": "Private key of a small x402 payer wallet holding a little USDC on Base (pays $0.002-$0.01 per call). Alternative: X402_PAYER_FILE."
        },
        {
          "name": "SESSION_BUDGET_USD",
          "default": "1",
          "description": "Stop paying once this much was spent in the session (default 1)."
        }
      ]
    }
  ],
  "repository": {
    "url": "https://github.com/yankiifr/base-facts-mcp",
    "source": "github"
  },
  "websiteUrl": "https://base-facts.yankii.fr",
  "description": "Base token checks for agents: simulated buy and sell, taxes, honeypots. Pay per call in USDC (x402)."
}