Base Onchain Tools vs MCP Contracts

In-depth architectural comparison of the Base Onchain Tools and MCP Contracts MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

Which MCP Server Should You Choose?

B

Choose Base Onchain Tools when:

• You need dedicated capabilities in the Finance & Fintech domain.
• You prefer remote streaming HTTP/SSE transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).

Explore Base Onchain Tools Details

Choose MCP Contracts when:

• You need dedicated capabilities in the Finance & Fintech domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: evm_contract_data, solana_contract_data.

Explore MCP Contracts Details

Feature & Specification Comparison

Specification	B Base Onchain Tools Finance & Fintech	MCP Contracts Finance & Fintech
Summary	Base mainnet analysis: contract audits, transfer simulation, token pricing. Paid via x402.	MCP server for smart contract ABIs and on-chain data from EVM and Solana via Crypto APIs
Category & Scope	Finance & Fintech	Finance & Fintech

Tools & Capabilities Breakdown

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

{
  "mcpServers": {
    "base-onchain-tools": {
      "url": "https://base-onchain-tools.dolerite.workers.dev"
    }
  }
}

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

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