JSON Contracts vs License Verify MCP

A side-by-side look at the JSON Contracts and License Verify MCP MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

JSON Contracts logoJSON ContractsLegal · Local subprocess (stdio)JSON contract registry and validator for structured LLM and agent outputs.57GoodAuth: not declaredLicense Verify MCP logoLicense Verify MCPLegal · Local subprocess (stdio)Verify a US contractor's license, surety bond, and insurance from official state data (WA L&I live, CA CSLB beta). Agent-payable pay-per-success, MCP-native.57GoodAuth: no auth required

Verdict: choose JSON Contracts for legal work as a local process; choose License Verify MCP for legal as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

JSON Contracts logoChoose JSON Contracts when

  • You need dedicated capabilities in the Legal domain.
  • You prefer a local stdio subprocess transport.
  • You have the keys it needs: JSON_CONTRACTS_DIR.
  • You want tools like list_contracts, read_contract, get_json_contract.
Explore JSON Contracts

License Verify MCP logoChoose License Verify MCP when

  • You need dedicated capabilities in the Legal domain.
  • You prefer a local stdio subprocess transport.
  • Its auth model fits you: No auth required.
  • You want tools like jurisdiction, license_number, business_name.
Explore License Verify MCP

Feature & specification comparison

Rows where the two servers differ are marked.

SpecJSON Contracts logoJSON ContractsLicense Verify MCP logoLicense Verify MCP
CategoryLegalLegal
Quality signal57/100 · Good57/100 · Good
Install commandConfirmedConfirmed
TransportLocal subprocess (stdio)Local subprocess (stdio)
AuthNot declaredNo auth required
PricingNot declaredPaid service
Required env varsJSON_CONTRACTS_DIRNone listed
Verified ownerCommunity listingCommunity listing
GitHub stars10
Directory activity 3 views 0 installs 0 upvotes 5 views 0 installs 0 upvotes
Tools83

Tools & capabilities

JSON Contracts tools 8

  • list_contractsList currently loaded JSON contracts.
  • read_contractRead a loaded JSON contract.
  • get_json_contractReturn schema, rules, examples, instructions, and input so the agent/model can produce JSON.
  • get_edit_contractReturn schema, rules, current JSON, edit instructions, and input so the agent/model can edit existing JSON.
  • validate_jsonValidate agent-produced JSON against a contract schema.
  • get_repair_contractReturn schema, rules, previous invalid JSON, validation errors, and repair instructions.
  • statusReturn json-contracts MCP server status and loaded contract metadata.
  • reload_contractsRescan the JSON contracts directory and reload valid contracts.

License Verify MCP tools 3

  • jurisdiction
  • license_number
  • business_name

Ready-to-paste client configs

Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.

JSON Contracts

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "json-contracts": {
      "command": "npx",
      "args": [
        "-y",
        "json-contracts@latest"
      ],
      "env": {
        "JSON_CONTRACTS_DIR": "YOUR_JSON_CONTRACTS_DIR_HERE"
      }
    }
  }
}

License Verify MCP

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "lmaniraruta-license-verify-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "apify"
      ]
    }
  }
}

Frequently asked questions

JSON Contracts is categorized under Legal and uses a local stdio subprocess. License Verify MCP belongs to Legal and uses a local stdio subprocess. Pick JSON Contracts for legal work and License Verify MCP for legal.

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.

JSON Contracts has no declared pricing — check the project's own site. License Verify MCP is listed as a paid service. Auth: no auth required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Yes. MCP clients support multiple servers: add json-contracts and lmaniraruta-license-verify-mcp as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, JSON Contracts has a quality signal of 57/100 (Good) with 3 views, 0 installs and 1 GitHub stars. License Verify MCP has 57/100 (Good) with 5 views, 0 installs and 0 GitHub stars.