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DimensionBlockscout MCP ServerExposes Blockscout blockchain data via MCPNPM Sentinel MCP ServerAI-powered NPM package analysis MCP server
FMRS66 / 100 · C79 / 100 · B
Reliability9 / 2012 / 20
Security and permissions14 / 2016 / 20
Maintenance12 / 2018 / 20
Documentation18 / 2018 / 20
Setup experience13 / 2015 / 20
Best for
  • AI agents and IDE users needing real-time multi-chain blockchain data
  • Blockchain analysts and developers
  • Crypto researchers using Claude, Cursor, ChatGPT, or Codex
  • Developers auditing NPM dependencies within AI workflows
  • Teams performing supply chain security assessments
  • Users of Claude Desktop, Cursor, or VS Code
Not for
  • Users unwilling to register for a Blockscout PRO API key
  • Scenarios requiring on-chain writes or signing (all tools are read-only queries)
  • Telemetry-sensitive users running community instances without disabling telemetry
  • Projects outside the NPM ecosystem (e.g., pure Python/Go)
  • Environments without network access to deps.dev, OSV.dev, and the npm registry
  • Scenarios requiring maintenance by an official upstream vendor
Required permissions
  • Requires a Blockscout PRO API key (proapi_ prefix) for data access
  • Accesses https://mcp.blockscout.com/mcp over HTTP transport
  • Self-hosted deployments provide the key via the BLOCKSCOUT_PRO_API_KEY environment variable
  • Network access to the NPM registry and external services (deps.dev, OSV.dev, OpenSSF, npms.io, GitHub)
  • Read access to workspace lockfiles (pnpm-lock.yaml, package-lock., yarn.lock) for cache invalidation
Risks and side effects
  • PRO API access is metered in credits; tools append advisory notes when the balance drops below a threshold
  • Community instances collect anonymous telemetry by default (tool names, parameters, version, SHA-256 hash of the API key); disable with BLOCKSCOUT_DISABLE_COMMUNITY_TELEMETRY=true
  • The PRO API key must never be committed to version control or embedded in client-shipped binaries
  • Claude Connectors Directory requires a paid Claude plan and may have restrictions due to a shared access key
  • Third-party READMEs and changelogs are untrusted external content; they are wrapped in tags with _meta flags but should still be handled cautiously
  • Depends on availability and accuracy of external services
  • Batch requests are capped at 25 packages to prevent registry enumeration; larger sets require batching
  • Third-party open source project, not officially maintained by NPM or Anthropic
Supported clientsClaude Desktop, Claude Code, Claude (Web) Connectors Directory, ChatGPT Apps, Codex, CursorClaude Desktop, VS Code, Cursor
Tools1619