io.github.CryptoAPIs-io/mcp-signer MCP Server

io.github.CryptoAPIs-io/mcp-signer

What is the io.github.CryptoAPIs-io/mcp-signer MCP server?

Local transaction signing for EVM, UTXO, Tron, XRP, Kaspa, Solana and Tezos — no API calls

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mcp-signer": {
      "command": "npx",
      "args": [
        "-y",
        "@cryptoapis-io/mcp-signer"
      ]
    }
  }
}

Maintained

MCP server for dry-run Ethereum transaction simulation via Crypto APIs

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MCP server for transaction lookup across EVM, UTXO, Solana, XRP, Kaspa via Crypto APIs

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MCP server for address derivation and encoding utilities across multiple blockchains via Crypto APIs

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Self-hosted MCP proxy that puts an x402 paywall in front of an existing MCP server

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MCP server that pays x402-gated HTTP endpoints — fetch, and on a 402 authorize, sign, retry

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Create and deliver personalized video gifts (photos + an original song) from any agent.