NFT Metadata API vs Gas Estimator API

In-depth architectural comparison of the NFT Metadata API and Gas Estimator API 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?

Choose NFT Metadata API 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).
• Primary tools included: crypto_get_nft_metadata, contract, tokenId.

Explore NFT Metadata API Details

Choose Gas Estimator API 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).
• Primary tools included: crypto_estimate_gas, chain.

Explore Gas Estimator API Details

Feature & Specification Comparison

Specification	NFT Metadata API Finance & Fintech	Gas Estimator API Finance & Fintech
Summary	Fetch NFT metadata — name, image, traits from contract+tokenId. x402 micropayment.	Multi-chain gas estimation — ETH, Base, Polygon, Arbitrum, BSC. x402 micropayment.
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": {
    "nft-metadata-api": {
      "url": "https://nft-metadata.api.klymax402.com/mcp"
    }
  }
}

{
  "mcpServers": {
    "gas-estimator-api": {
      "url": "https://gas-estimator.api.klymax402.com/mcp"
    }
  }
}

Related MCP Server Comparisons