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8 clients · secrets stay placeholders

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{
  "mcpServers": {
    "AsaiShota": {
      "command": "npx",
      "args": [
        "-y",
        "@x402-market/[email protected]"
      ],
      "env": {
        "MARKET_API_URL": "https://x402-market-api.lien-studio-akiyama.workers.dev",
        "MCP_BUYER_PRIVATE_KEY": "${MCP_BUYER_PRIVATE_KEY}",
        "BASE_RPC_URL": "https://mainnet.base.org",
        "BASE_CHAIN_ID": "8453",
        "MCP_MAX_PRICE": "1.0"
      }
    }
  }
}

claude mcp add AsaiShota -e "MARKET_API_URL=https://x402-market-api.lien-studio-akiyama.workers.dev" -e "MCP_BUYER_PRIVATE_KEY=${MCP_BUYER_PRIVATE_KEY}" -e "BASE_RPC_URL=https://mainnet.base.org" -e "BASE_CHAIN_ID=8453" -e "MCP_MAX_PRICE=1.0" -- npx -y @x402-market/[email protected]

[mcp_servers.AsaiShota]
command = "npx"
args = ["-y", "@x402-market/[email protected]"]
env = { "MARKET_API_URL" = "https://x402-market-api.lien-studio-akiyama.workers.dev", "MCP_BUYER_PRIVATE_KEY" = "${MCP_BUYER_PRIVATE_KEY}", "BASE_RPC_URL" = "https://mainnet.base.org", "BASE_CHAIN_ID" = "8453", "MCP_MAX_PRICE" = "1.0" }

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "AsaiShota": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@x402-market/[email protected]"
      ],
      "enabled": true,
      "environment": {
        "MARKET_API_URL": "https://x402-market-api.lien-studio-akiyama.workers.dev",
        "MCP_BUYER_PRIVATE_KEY": "{env:MCP_BUYER_PRIVATE_KEY}",
        "BASE_RPC_URL": "https://mainnet.base.org",
        "BASE_CHAIN_ID": "8453",
        "MCP_MAX_PRICE": "1.0"
      }
    }
  }
}

{
  "mcpServers": {
    "AsaiShota": {
      "command": "npx",
      "args": [
        "-y",
        "@x402-market/[email protected]"
      ],
      "env": {
        "MARKET_API_URL": "https://x402-market-api.lien-studio-akiyama.workers.dev",
        "MCP_BUYER_PRIVATE_KEY": "${MCP_BUYER_PRIVATE_KEY}",
        "BASE_RPC_URL": "https://mainnet.base.org",
        "BASE_CHAIN_ID": "8453",
        "MCP_MAX_PRICE": "1.0"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=AsaiShota&config=eyJjb21tYW5kIjoibnB4IiwiYXJncyI6WyIteSIsIkB4NDAyLW1hcmtldC9tY3Atc2VydmVyQDAuMi4wLWFscGhhLjEiXSwiZW52Ijp7Ik1BUktFVF9BUElfVVJMIjoiaHR0cHM6Ly94NDAyLW1hcmtldC1hcGkubGllbi1zdHVkaW8tYWtpeWFtYS53b3JrZXJzLmRldiIsIk1DUF9CVVlFUl9QUklWQVRFX0tFWSI6IiR7TUNQX0JVWUVSX1BSSVZBVEVfS0VZfSIsIkJBU0VfUlBDX1VSTCI6Imh0dHBzOi8vbWFpbm5ldC5iYXNlLm9yZyIsIkJBU0VfQ0hBSU5fSUQiOiI4NDUzIiwiTUNQX01BWF9QUklDRSI6IjEuMCJ9fQ%3D%3D"
}

{
  "servers": {
    "AsaiShota": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@x402-market/[email protected]"
      ],
      "env": {
        "MARKET_API_URL": "https://x402-market-api.lien-studio-akiyama.workers.dev",
        "MCP_BUYER_PRIVATE_KEY": "${MCP_BUYER_PRIVATE_KEY}",
        "BASE_RPC_URL": "https://mainnet.base.org",
        "BASE_CHAIN_ID": "8453",
        "MCP_MAX_PRICE": "1.0"
      }
    }
  }
}

{
  "mcpServers": {
    "AsaiShota": {
      "command": "npx",
      "args": [
        "-y",
        "@x402-market/[email protected]"
      ],
      "env": {
        "MARKET_API_URL": "https://x402-market-api.lien-studio-akiyama.workers.dev",
        "MCP_BUYER_PRIVATE_KEY": "${MCP_BUYER_PRIVATE_KEY}",
        "BASE_RPC_URL": "https://mainnet.base.org",
        "BASE_CHAIN_ID": "8453",
        "MCP_MAX_PRICE": "1.0"
      }
    }
  }
}

extensions:
  "AsaiShota":
    enabled: true
    name: "AsaiShota"
    type: stdio
    cmd: "npx"
    args:
      - "-y"
      - "@x402-market/[email protected]"
    envs:
      "MARKET_API_URL": "https://x402-market-api.lien-studio-akiyama.workers.dev"
      "MCP_BUYER_PRIVATE_KEY": "${MCP_BUYER_PRIVATE_KEY}"
      "BASE_RPC_URL": "https://mainnet.base.org"
      "BASE_CHAIN_ID": "8453"
      "MCP_MAX_PRICE": "1.0"
    timeout: 300

Placeholders to fill from your own secret store: ${MCP_BUYER_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

dependencies67 · weight 15

pass
deps.known_vulnsno known advisory in 111 resolved packages
fail
deps.mcp_sdk_version@modelcontextprotocol/sdk 1.30.1 has 1 known advisory (GHSA-6qxp-vccf-f47h); update @modelcontextprotocol/sdk to 1.31.0 or later
pass
deps.resolvable@x402-market/[email protected] resolved: 111 packages

Tool list unknown · checked 2026-10-20 10:35 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 86 / 100

provenance90

livenessn/a

freshness65

hygiene100

+repository +namespace-matches-repo +website ~liveness-unmeasured ~updated-171d-ago

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

Dependencies

@x402-market/[email protected] npm110 dependencies, resolved · MCP SDK @modelcontextprotocol/sdk 1.30.1 · advisories checked 2026-10-19

advisory	severity	package	fixed in
GHSA-6qxp-vccf-f47hMCP TypeScript SDK: OAuth client could send credentials to an authorization server chosen by the MCP server	high	`@modelcontextprotocol/[email protected]`MCP SDK, direct	fixed in `1.31.0`

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
`@x402-market/mcp-server`	npm	0.2.0-alpha.1	–	`MCP_BUYER_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.AsaiShota/mcp-server",
  "title": "x402-market",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "version": "0.2.0-alpha.1",
  "packages": [
    {
      "version": "0.2.0-alpha.1",
      "transport": {
        "type": "stdio"
      },
      "identifier": "@x402-market/mcp-server",
      "registryType": "npm",
      "environmentVariables": [
        {
          "name": "MARKET_API_URL",
          "default": "https://x402-market-api.lien-studio-akiyama.workers.dev",
          "description": "Marketplace API base URL."
        },
        {
          "name": "MCP_BUYER_PRIVATE_KEY",
          "isSecret": true,
          "description": "Funded buyer wallet private key (0x-prefixed). Required for pay_and_call; read-only tools work without it."
        },
        {
          "name": "BASE_RPC_URL",
          "default": "https://mainnet.base.org",
          "description": "Base RPC endpoint. Defaults to Base mainnet public RPC; Alchemy/QuickNode recommended for higher rate limits."
        },
        {
          "name": "BASE_CHAIN_ID",
          "format": "number",
          "default": "8453",
          "description": "8453 = Base mainnet (default, matches live listings). 84532 = Base Sepolia testnet."
        },
        {
          "name": "MCP_MAX_PRICE",
          "default": "1.0",
          "description": "Hard cap on per-call cost (USDC). Refuses to pay above this."
        }
      ]
    }
  ],
  "repository": {
    "url": "https://github.com/AsaiShota/x402-market",
    "source": "github",
    "subfolder": "packages/mcp-server"
  },
  "websiteUrl": "https://x402-market-api.lien-studio-akiyama.workers.dev",
  "description": "Let AI agents pay-per-call for any HTTP API via x402 on Base mainnet. One tool: pay_and_call."
}