OpenFinance — Easy Trading: Crypto, Stocks, Perps & Prediction Markets

OpenFinance MCP Server

The easiest way to let your AI agent trade.

Research, trade and move money across every major market through one remote MCP connection. No install, no keys to juggle.

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The OpenFinance MCP server supercharges AI agents with trading skills. Connect Claude, ChatGPT, Cursor, Codex or any MCP client and your agent can:

• Trade crypto spot and perpetuals on Hyperliquid, with limit, market and TWAP orders, leverage and margin control.
• Trade stocks, indices, commodities, forex and pre-IPO names as Hyperliquid HIP-3 perps (for example xyz:NVDA).
• Trade prediction markets on Polymarket: sports, politics, crypto and world events, plus trader leaderboards.
• Swap and bridge anything onchain across 40+ EVM chains and Solana, with Relay and Jupiter routing.
• Find and trade memecoins with token search across 200+ chains, live prices and liquidity.
• Launch tokens on Robinhood Chain and Solana, including tokens paired against tokenized stocks.
• Fund the account with fiat, through card, bank transfer or UPI.

There is nothing to install or host. The server runs at one HTTPS endpoint, and your agent connects to it like any other remote MCP server.

https://api.openfinance.tech/agent/mcp

[!IMPORTANT]

This server can place real orders and move real funds. Every write action is designed to ask you first, and you should keep your client's tool-approval prompts switched on. Read Safety and security before you trade.

Contents

• Quick start
• What your agent can do
• Supported chains
• Authentication
• Install in your AI client
• Use it from your own code
• Tool reference
• Example prompts
• Safety and security
• Pair it with OpenFinance Skills
• Verify the connection
• Troubleshooting
• FAQ
• Links

Quick start

Easy trading for your agent in under a minute.

1. Create your account. Sign in at openfinance.tech. Your trading wallets (one EVM address for every EVM chain, plus a Solana address) are created for you.

2. Add the server to your AI client. In Claude Code, for example:

claude mcp add --transport http openfinance-tech https://api.openfinance.tech/agent/mcp

3. Sign in and approve. The first time your agent uses the server, your client opens an OpenFinance sign-in page. Approve the connection on the consent screen and you're done.

Then ask your agent something like:

*"What's BTC's funding rate on Hyperliquid right now, and how has it moved over the last day?"*

Using a different client? See Install in your AI client.

What your agent can do

Supported chains

Authentication

Every call to the server is authenticated. You can sign in two ways; both act on your own OpenFinance account.

OAuth sign-in. The server follows the MCP authorization spec, so supporting clients discover it automatically. When you connect, you sign in to OpenFinance and see which account is being connected; you have to confirm twice before anything is authorized.

API key. Sign in at openfinance.tech, open External AI in the sidebar, and copy the API key shown under Connect OpenFinance to your AI. Keys start with open_.

[!WARNING]

Treat your API key like a password. It carries the same permissions as your account, including placing trades and sending funds from your wallets. Keep it in an environment variable or your client's secret prompt, never in a file you commit, and never paste it into a shared chat. If it leaks, replace it straight away.

The examples below read the key from an environment variable:

export OPENFINANCE_API_KEY="open_..."   # add to your shell profile, not to a repo

Install in your AI client

Use the server name openfinance-tech and the URL https://api.openfinance.tech/agent/mcp everywhere. Each section shows the OAuth setup first, then the API-key alternative.

Claude Code

OAuth (recommended)

claude mcp add --transport http openfinance-tech https://api.openfinance.tech/agent/mcp

Start Claude Code, run /mcp, choose openfinance-tech and select Authenticate. Add --scope user to make it available in every project.

API key

claude mcp add --transport http openfinance-tech https://api.openfinance.tech/agent/mcp \

--header "x-api-key: $OPENFINANCE_API_KEY"

Shared project config (`.mcp.json`): Claude Code expands environment variables, so the key never lands in the file:

{

"mcpServers": { "openfinance-tech": { "type": "http", "url": "https://api.openfinance.tech/agent/mcp", "headers": { "x-api-key": "${OPENFINANCE_API_KEY}" } } } }

Claude.ai and Claude Desktop

1. Open Settings → Connectors and click Add custom connector.
2. Name: OpenFinance. URL: https://api.openfinance.tech/agent/mcp.
3. Click Add, then Connect, and approve the connection on OpenFinance.
4. In a chat, open the tools menu and switch OpenFinance on.

Connectors you add on Claude.ai also appear in Claude Desktop. Custom connectors are available on Claude's paid plans; on Team and Enterprise an owner may need to add them first.

API key alternative (Claude Desktop only). Bridge the server through mcp-remote in claude_desktop_config.json (Settings → Developer → Edit Config), then fully quit and reopen Claude:

{

"mcpServers": { "openfinance-tech": { "command": "npx", "args": [ "-y", "mcp-remote", "https://api.openfinance.tech/agent/mcp", "--header", "x-api-key:${OPENFINANCE_API_KEY}" ], "env": { "OPENFINANCE_API_KEY": "open_..." } } } }

ChatGPT

1. Open Settings → Apps & Connectors. If you don't see a Create button, turn on Developer mode under Advanced settings.
2. Click Create. Name: OpenFinance. MCP server URL: https://api.openfinance.tech/agent/mcp. Authentication: OAuth.
3. Save, sign in to OpenFinance and approve the connection.
4. In a new chat, pick OpenFinance from the tools or connectors menu.

Custom connectors need a ChatGPT plan that supports them (Plus, Pro, Business, Enterprise or Edu); workspace admins may need to allow them.

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