MCP Server

SchemaSure — structured extraction MCP Server

Name: SchemaSure — structured extraction MCP Server
Author: io.github.noamjose

io.github.noamjose/schemasure

Repository Registry

What is the SchemaSure — structured extraction MCP server?

Extract schema-valid JSON from text/HTML or document images. Pay per call via x402 V2.

How to install SchemaSure — structured extraction

Copy-paste configuration for popular MCP clients.

transport: stdio

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

Environment / auth

SCHEMASURE_API_URL
Base URL of SchemaSure. Text has free V1 evaluation without a wallet; image extraction is V2-only and always requires a wallet.
SCHEMASURE_TIMEOUT_MS
Per-call request timeout in milliseconds.
SCHEMASURE_PRIVATE_KEY
secret
Optional 0x-prefixed EVM key. Enables paid x402 V2 text and image calls; signs Base USDC payments locally. Never sent to SchemaSure.
SCHEMASURE_MAX_PRICE_USD
Client-side spend cap in USD per call (paid mode). The client refuses to pay more than this, even if the server advertises a higher price.

Claude Desktop

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

{
  "mcpServers": {
    "schemasure": {
      "command": "npx",
      "args": [
        "-y",
        "@noamjose/schemasure"
      ],
      "env": {
        "SCHEMASURE_API_URL": "<YOUR_SCHEMASURE_API_URL>",
        "SCHEMASURE_TIMEOUT_MS": "<YOUR_SCHEMASURE_TIMEOUT_MS>",
        "SCHEMASURE_PRIVATE_KEY": "<YOUR_SCHEMASURE_PRIVATE_KEY>",
        "SCHEMASURE_MAX_PRICE_USD": "<YOUR_SCHEMASURE_MAX_PRICE_USD>"
      }
    }
  }
}

Cursor

~/.cursor/mcp.json

{
  "mcpServers": {
    "schemasure": {
      "command": "npx",
      "args": [
        "-y",
        "@noamjose/schemasure"
      ],
      "env": {
        "SCHEMASURE_API_URL": "<YOUR_SCHEMASURE_API_URL>",
        "SCHEMASURE_TIMEOUT_MS": "<YOUR_SCHEMASURE_TIMEOUT_MS>",
        "SCHEMASURE_PRIVATE_KEY": "<YOUR_SCHEMASURE_PRIVATE_KEY>",
        "SCHEMASURE_MAX_PRICE_USD": "<YOUR_SCHEMASURE_MAX_PRICE_USD>"
      }
    }
  }
}

Windsurf

~/.codeium/windsurf/mcp_config.json

{
  "mcpServers": {
    "schemasure": {
      "command": "npx",
      "args": [
        "-y",
        "@noamjose/schemasure"
      ],
      "env": {
        "SCHEMASURE_API_URL": "<YOUR_SCHEMASURE_API_URL>",
        "SCHEMASURE_TIMEOUT_MS": "<YOUR_SCHEMASURE_TIMEOUT_MS>",
        "SCHEMASURE_PRIVATE_KEY": "<YOUR_SCHEMASURE_PRIVATE_KEY>",
        "SCHEMASURE_MAX_PRICE_USD": "<YOUR_SCHEMASURE_MAX_PRICE_USD>"
      }
    }
  }
}

VS Code

.vscode/mcp.json

{
  "servers": {
    "schemasure": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@noamjose/schemasure"
      ],
      "env": {
        "SCHEMASURE_API_URL": "<YOUR_SCHEMASURE_API_URL>",
        "SCHEMASURE_TIMEOUT_MS": "<YOUR_SCHEMASURE_TIMEOUT_MS>",
        "SCHEMASURE_PRIVATE_KEY": "<YOUR_SCHEMASURE_PRIVATE_KEY>",
        "SCHEMASURE_MAX_PRICE_USD": "<YOUR_SCHEMASURE_MAX_PRICE_USD>"
      }
    }
  }
}

Claude Code

claude mcp add schemasure --env SCHEMASURE_API_URL=<YOUR_SCHEMASURE_API_URL> --env SCHEMASURE_TIMEOUT_MS=<YOUR_SCHEMASURE_TIMEOUT_MS> --env SCHEMASURE_PRIVATE_KEY=<YOUR_SCHEMASURE_PRIVATE_KEY> --env SCHEMASURE_MAX_PRICE_USD=<YOUR_SCHEMASURE_MAX_PRICE_USD> -- npx -y @noamjose/schemasure