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8 clients · secrets stay placeholders

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{
  "mcpServers": {
    "serp402": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "SERP402_EVM_PRIVATE_KEY": "${SERP402_EVM_PRIVATE_KEY}",
        "SERP402_SOLANA_PRIVATE_KEY": "${SERP402_SOLANA_PRIVATE_KEY}"
      }
    }
  }
}

claude mcp add serp402 -e "SERP402_EVM_PRIVATE_KEY=${SERP402_EVM_PRIVATE_KEY}" -e "SERP402_SOLANA_PRIVATE_KEY=${SERP402_SOLANA_PRIVATE_KEY}" -- npx -y [email protected]

[mcp_servers.serp402]
command = "npx"
args = ["-y", "[email protected]"]
env = { "SERP402_EVM_PRIVATE_KEY" = "${SERP402_EVM_PRIVATE_KEY}", "SERP402_SOLANA_PRIVATE_KEY" = "${SERP402_SOLANA_PRIVATE_KEY}" }

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "serp402": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "[email protected]"
      ],
      "enabled": true,
      "environment": {
        "SERP402_EVM_PRIVATE_KEY": "{env:SERP402_EVM_PRIVATE_KEY}",
        "SERP402_SOLANA_PRIVATE_KEY": "{env:SERP402_SOLANA_PRIVATE_KEY}"
      }
    }
  }
}

{
  "mcpServers": {
    "serp402": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "SERP402_EVM_PRIVATE_KEY": "${SERP402_EVM_PRIVATE_KEY}",
        "SERP402_SOLANA_PRIVATE_KEY": "${SERP402_SOLANA_PRIVATE_KEY}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=serp402&config=eyJjb21tYW5kIjoibnB4IiwiYXJncyI6WyIteSIsInNlcnA0MDItbWNwQDEuMC4wIl0sImVudiI6eyJTRVJQNDAyX0VWTV9QUklWQVRFX0tFWSI6IiR7U0VSUDQwMl9FVk1fUFJJVkFURV9LRVl9IiwiU0VSUDQwMl9TT0xBTkFfUFJJVkFURV9LRVkiOiIke1NFUlA0MDJfU09MQU5BX1BSSVZBVEVfS0VZfSJ9fQ%3D%3D"
}

{
  "servers": {
    "serp402": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "SERP402_EVM_PRIVATE_KEY": "${SERP402_EVM_PRIVATE_KEY}",
        "SERP402_SOLANA_PRIVATE_KEY": "${SERP402_SOLANA_PRIVATE_KEY}"
      }
    }
  }
}

{
  "mcpServers": {
    "serp402": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "SERP402_EVM_PRIVATE_KEY": "${SERP402_EVM_PRIVATE_KEY}",
        "SERP402_SOLANA_PRIVATE_KEY": "${SERP402_SOLANA_PRIVATE_KEY}"
      }
    }
  }
}

extensions:
  "serp402":
    enabled: true
    name: "serp402"
    type: stdio
    cmd: "npx"
    args:
      - "-y"
      - "[email protected]"
    envs:
      "SERP402_EVM_PRIVATE_KEY": "${SERP402_EVM_PRIVATE_KEY}"
      "SERP402_SOLANA_PRIVATE_KEY": "${SERP402_SOLANA_PRIVATE_KEY}"
    timeout: 300

Placeholders to fill from your own secret store: ${SERP402_EVM_PRIVATE_KEY}, ${SERP402_SOLANA_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 10:03 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 75 / 100

no-repository

provenance55

livenessn/a

freshness100

hygiene80

+dns-namespace +website ~liveness-unmeasured +updated-20d-ago -no-repository

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
`serp402-mcp`	npm	1.0.0	–	`SERP402_EVM_PRIVATE_KEY`, `SERP402_SOLANA_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": "com.serp402/mcp",
  "title": "serp402",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "version": "1.0.0",
  "packages": [
    {
      "version": "1.0.0",
      "transport": {
        "type": "stdio"
      },
      "identifier": "serp402-mcp",
      "registryType": "npm",
      "environmentVariables": [
        {
          "name": "SERP402_EVM_PRIVATE_KEY",
          "isSecret": true,
          "description": "0x… key holding USDC on Base. Each search costs USD 0.005, charged to this wallet. Either this or the Solana key is required to search."
        },
        {
          "name": "SERP402_SOLANA_PRIVATE_KEY",
          "isSecret": true,
          "description": "ed25519 key (hex or base58) holding USDC on Solana. Alternative to the Base key."
        },
        {
          "name": "SERP402_MAX_SPEND_USD",
          "description": "Stop searching after this much has been spent in one session. Default 1.00."
        },
        {
          "name": "SERP402_ENDPOINT",
          "description": "Override the endpoint. Default https://serp402.com"
        }
      ]
    }
  ],
  "websiteUrl": "https://serp402.com",
  "description": "Google search for agents: web, news, images, places, shopping, Scholar. Paid per call over x402."
}