AI Quickstart

Prerequisites

A Range API key, get one at app.range.org/keys
An MCP-compatible AI client (Claude Desktop, Claude.ai, Cursor, or any OpenAI-compatible tool)

You use the same API key you already have. No new credentials, no separate signup.

MCP endpoint

https://api.range.org/ai/mcp

This endpoint speaks the Model Context Protocol over Streamable HTTP. Every call is authenticated with your existing API key.

Key types and workspace access

Authorization: Bearer <api_key> is the recommended way to authenticate. An x-api-key: <api_key> header is also accepted as an alternative.
Legacy/global API keys can call every tool that isn’t workspace-scoped (address intelligence, risk, network/token stats, explorer tools, and the global screening/plan catalogues).
Workspace-scoped API keys (<workspaceId>.<jwt>) additionally unlock the workspace-scoped tools: accounts, balances, alerts, counterparties, transfer enrichment, and the v2 screening pipeline. Calling a workspace-scoped tool with a legacy key returns a clear error asking for a workspace-scoped key instead of silently returning empty data.
A workspace member with the READER role has full access to every tool a workspace key can reach — the whole MCP surface is read-only, so no elevated role is required.
The server is stateless: no session id is issued or required. Every request is independent and authenticated on its own, so connections are unaffected by server maintenance or restarts.

API key scopes

When creating an API key you choose which APIs it can read:

Risk API — risk scoring, sanctions/OFAC checks, and the screening pipeline (risk scores, screening evidence and history).
Data API — blockchain data reads: addresses, transactions, transfers, tokens, and network/explorer analytics.
Platform API — your workspace’s own product data: accounts, balances, groups, alert rules and events, counterparties, and transfer notes.

For full MCP visibility, create the key with all three scopes enabled. The MCP surface spans all three areas, and a key provisioned with every read scope keeps working as per-scope enforcement rolls out across tool categories. All scopes are read-only through the MCP — no scope grants write access. See the Tools Reference for which tools are workspace-scoped.

Connect your client

Claude Desktop
Claude.ai
Cursor
Test with curl

Open your Claude Desktop config file:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json

Add the Range server under mcpServers:

{
  "mcpServers": {
    "range": {
      "type": "http",
      "url": "https://api.range.org/ai/mcp",
      "headers": {
        "Authorization": "Bearer your_api_key_here"
      }
    }
  }
}

Restart Claude Desktop. You should see “range” appear in the tools panel (hammer icon).

In Claude.ai, go to Settings → Integrations → Add MCP Server:

Name: Range
URL: https://api.range.org/ai/mcp
Authentication: Custom header
- Header: Authorization
- Value: Bearer your_api_key_here

Save and refresh. Range tools will be available in any new conversation.

Open Cursor settings (Cmd/Ctrl + ,) and navigate to Features → MCP Servers.Add a new server:

{
  "range": {
    "type": "http",
    "url": "https://api.range.org/ai/mcp",
    "headers": {
      "Authorization": "Bearer your_api_key_here",
      "Accept": "application/json, text/event-stream"
    }
  }
}

Or add it to your .cursor/mcp.json file in any project directory to scope it per-project.

The server is stateless: no session id is issued or required, and every request stands on its own. You can call any method directly.

MCP clients (Claude Desktop, Claude.ai, Cursor, etc.) still send an initialize handshake automatically when they connect — that’s part of the protocol and works as normal. Statelessness just means you don’t have to manage a session id yourself when testing with curl, Postman, or a custom client.

List the available tools:

curl -X POST https://api.range.org/ai/mcp \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -H "Authorization: Bearer your_api_key_here" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list","params":{}}'

Call a tool:

curl -X POST https://api.range.org/ai/mcp \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -H "Authorization: Bearer your_api_key_here" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"check_sanctions","arguments":{"address":"0x7F367cC41522cE07553e823bf3be79A889DEbe1B"}}}'

A successful tools/list response returns a JSON array of 74 tools.

Your first investigation

Once connected, paste this prompt into your AI client:

Investigate this wallet and tell me if I should be concerned about it:
5Q544fKrFoe6tsEbD7S8EmxGTJYAKtTVhAW5Q5pge4j1

Check its risk score, see if it's sanctioned, find its top counterparties,
and summarize what kind of entity this appears to be.

The AI will call get_address_risk, check_sanctions, get_address_connections, and get_address_info autonomously and return a structured summary.

Prerequisites

MCP endpoint

Key types and workspace access

API key scopes

Connect your client

Your first investigation

Next steps

Tools Reference

Investigation Playbook

​Prerequisites

​MCP endpoint

​Key types and workspace access

​API key scopes

​Connect your client

​Your first investigation

​Next steps

Tools Reference

Investigation Playbook

Prerequisites

MCP endpoint

Key types and workspace access

API key scopes

Connect your client

Your first investigation

Next steps