mcp-pear

Model Context Protocol (MCP) server for Pear Protocol. Gives Claude, or any MCP-compatible agent, access to markets, pair ratios, positions, orders, trade history, portfolio, and (v0.2) full trade execution on Hyperliquid.

v0.2 adds trade execution. Ten write tools (open, close, and adjust positions; manage leverage and risk; cancel orders) are off by default behind PEAR_TRADE_ENABLED=true. Pear signs server-side, so mcp-pear never holds private keys.

What is Pear Protocol?

Pear is a Hyperliquid-backed perps platform for pair markets: long one basket against another. Every pair has a live ratio that moves as the legs diverge. More at pearprotocol.io.

Tools

Public (no auth):

• get_health: API health and uptime
• list_markets: browse pair markets with filters and pagination
• get_active_markets: top gainers, losers, and highlighted pairs
• get_pair_ratio: current ratio, 24h change, and funding for a specific pair

Authenticated read:

• get_account_summary: your account header
• get_open_positions: your open positions with PnL
• get_open_orders: your open limit, TP, and SL orders
• get_twap_orders: your active TWAP orders
• get_trade_history: your closed trades with realized PnL
• get_portfolio: bucketed PnL across 1d, 1w, 1m, 1y, and all-time
• get_agent_wallet: the agent wallet Pear uses to sign your trades

Authenticated write (v0.2, gated behind PEAR_TRADE_ENABLED=true):

• create_agent_wallet: create the agent wallet
• open_position, close_position, close_all_positions: open and close pair positions
• adjust_position, adjust_leverage: change size or leverage on a live position
• set_risk_parameters: set or update TP and SL
• cancel_order, cancel_twap_order: cancel pending orders

Full parameter reference in Tool reference. See Trade execution (v0.2) for the gate and Hyperliquid funding rules.

Install

# Run directly
npx -y @marvelcodes/mcp-pear@latest

# Or install globally
pnpm install -g @marvelcodes/mcp-pear
mcp-pear

Pin @latest (or a specific version) in the npx spec. Plain npx @marvelcodes/mcp-pear can launch a stale cached version: npx prefers its local cache over the npm registry when the spec is unpinned, so after a new release lands you may still be running the old one. @latest re-resolves against the registry each launch; pin like @0.2.0 instead if you want a frozen version. Stuck on an old version after upgrading? Clear the npx cache: rm -rf ~/.npm/_npx (macOS/Linux).

Getting an API key

For the authenticated tools, mint a key:

npx -y @marvelcodes/mcp-pear@latest setup

The CLI opens a browser, asks you to sign once with your wallet, mints a Pear API key, and (optionally) writes PEAR_API_KEY and PEAR_ADDRESS to a .env. Copy those two values into your Claude Desktop config and restart Claude.

Already have a JWT from app.pear.garden? Skip setup and use JWT pass-through below.

Configuration

Three auth modes. mcp-pear uses the first one whose env vars are set, decided on the first authenticated call.

Mode 1: JWT pass-through (multi-tenant orchestrators)

For Telegram bots and other orchestrators that mint JWTs externally (Privy, EIP-712, or any Pear-supported flow). The JWT is opaque; mcp-pear never calls /auth/login.

| Env var | Required | Description | |---|---|---| | PEAR_JWT | yes | Pre-minted access token. Used directly when set. PEAR_API_KEY and PEAR_ADDRESS act as fallback if the JWT expires and no PEAR_REFRESH_TOKEN is configured. | | PEAR_REFRESH_TOKEN | no | If set, mcp-pear refreshes the JWT itself when it expires mid-session (each refresh rotates the token). Without it, the orchestrator has to re-mint and respawn the subprocess. |

When PEAR_JWT expires and no refresh token is set, authenticated tools return:

JWT expired; the orchestrator must mint a new one and restart mcp-pear.

See examples/telegram-bot-usage.ts for the orchestrator pattern.

Mode 2: API key + wallet address (single-user, Claude Desktop)

| Env var | Required | Description | |---|---|---| | PEAR_API_KEY | for auth tools | Your Pear API key. | | PEAR_ADDRESS | for auth tools | Wallet address bound to the API key (0x...). |

mcp-pear mints the JWT itself by calling POST /auth/login. Both fields are required: the OpenAPI spec needs address in the request body.

Public-only mode

The four public tools work without any auth env vars. Authenticated tools return a ConfigError naming the missing env var.

Common settings (optional)

| Env var | Default | Description | |---|---|---| | PEAR_API_BASE_URL | https://hl-v2.pearprotocol.io | Pear API host. | | PEAR_API_TIMEOUT_MS | 10000 | Per-request timeout. | | PEAR_CLIENT_ID | APITRADER | Client identifier sent to /auth/login. |

Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "pear": {
      "command": "npx",
      "args": ["-y", "@marvelcodes/mcp-pear@latest"],
      "env": {
        "PEAR_API_KEY": "your-pear-api-key-here",
        "PEAR_ADDRESS": "0xYourWalletAddress"
      }
    }
  }
}

Restart Claude Desktop and ask: "Use Pear to show me the top active markets right now."

ADK-TS

import { McpToolset, StdioTransport } from "@iqai/adk";

const pearTools = new McpToolset({
	transport: new StdioTransport({
		command: "npx",
		args: ["-y", "@marvelcodes/mcp-pear@latest"],
		env: { PEAR_API_KEY: process.env.PEAR_API_KEY ?? "", PEAR_ADDRESS: process.env.PEAR_ADDRESS ?? "" },
	}),
});

await pearTools.connect();
const tools = await pearTools.listTools();

Full example in examples/adk-ts-usage.ts.

Tool reference

adjust_leverage

Change leverage (1-100x) on an existing Pear Protocol position. Higher leverage means greater liquidation risk for the same price move. WRITE: changes risk profile of a live position. Requires PEAR_TRADE_ENABLED=true.

| Parameter | Type | Required | Description | |-----------|------|----------|-------------| | positionId | string | yes | | | leverage | integer | yes | |

adjust_position

Reduce or increase an existing Pear Protocol position's size by 1-100 percent. executionType: MARKET (immediate) or LIMIT (provide limitRatio). WRITE: changes exposure on a real trade. Requires PEAR_TRADE_ENABLED=true.

| Parameter | Type | Required | Description | |-----------|------|----------|-------------| | positionId | string | yes | | | adjustmentType | string | yes | | | adjustmentSize | integer | yes | | | executionType | string | yes | | | limitRatio | number | | | | referralCode | string | | |

cancel_order

Cancel a pending Pear Protocol limit, take-profit, or stop-loss order by orderId. Does not affect already-filled portions. For TWAP orders, use cancel_twap_order. WRITE: cancels a live order. Requires PEAR_TRADE_ENABLED=true.

| Parameter | Type | Required | Description | |-----------|------|----------|-------------| | orderId | string | yes | |

cancel_twap_order

Cancel a Pear Protocol TWAP (time-weighted average price) order and all of its remaining unfilled chunks. WRITE: cancels a live order. Requires PEAR_TRADE_ENABLED=true.

| Parameter | Type | Required | Description | |-----------|------|----------|-------------| | orderId | string | yes | |

close_all_positions

Close every open Pear Protocol position with a single executionType (MARKET or TWAP). Returns a per-position result array with success/error. WRITE: executes real trades. Requires PEAR_TRADE_ENABLED=true.

| Parameter | Type | Required | Description | |-----------|------|----------|-------------| | executionType | string | yes | | | twapDuration | number | | | | twapIntervalSeconds | number | | | | randomizeExecution | boolean | | | | referralCode | string | | |

close_position

Close one open Pear Protocol position by positionId. executionType: MARKET (immediate) or TWAP (spread over time; requires twapDuration in seconds). WRITE: executes a real trade. Requires PEAR_TRADE_ENABLED=true.

| Parameter | Type | Required | Description | |-----------|------|----------|-------------| | positionId | string | yes | | | executionType | string | yes | | | twapDuration | number | | | | twapIntervalSeconds | number | | | | randomizeExecution | boolean | | | | referralCode | string | | |

create_agent_wallet

Create a new Pear Protocol agent wallet for the authenticated user. The agent wallet is what Pear uses to sign Hyperliquid trades. After creation, the user MUST approve this wallet on Hyperliquid (the response message contains the approval instructions). WRITE: executes a state change. Requires PEAR_TRADE_ENABLED=true.

No parameters

get_account_summary

Get the authenticated user's Pear Protocol account summary: agent wallet address, total closed trades, pending trigger-order USD value, pending TWAP-chunk USD value, and last sync timestamp. Requires PEAR_API_KEY.

No parameters

get_active_markets

Get the most active Pear Protocol pair markets right now: current active pairs plus top gainers, top losers, highlighted pairs, and the user's watchlist. Use to see what's hot or as a starting point for narrowing into a specific pair.

No parameters

get_agent_wallet

Get the authenticated user's Pear Protocol agent wallet address. The agent wallet is what Pear uses to sign Hyperliquid trades on the user's behalf. Returns an empty/missing address if no agent wallet has been created yet; call create_agent_wallet to create one.

No parameters

get_health

Check Pear Protocol API health. Returns service status, server timestamp, and uptime in seconds. Use this to verify the API is reachable before running other tools.

No parameters

get_open_orders

List the authenticated user's open limit, take-profit, and stop-loss orders on Pear Protocol. Returns each order's ID, type, status, and pair composition. Requires PEAR_API_KEY.

No parameters

get_open_positions

List the authenticated user's currently open Pear Protocol pair positions, including position ID, entry ratio, mark ratio, unrealized PnL, and long/short composition. Requires PEAR_API_KEY.

No parameters

get_pair_ratio

Get the current ratio (long/short composition price) for a specific Pear Protocol pair. Pass long and short asset arrays. Returns the ratio, 24h change, and funding rate. Useful when you know the pair you care about and want the latest number.

| Parameter | Type | Required | Description | |-----------|------|----------|-------------| | longAssets | array | yes | Asset symbols on the long side (e.g. ['BTC']). | | shortAssets | array | yes | Asset symbols on the short side. Pass an empty array for long-only baskets. |

get_portfolio

Fetch the authenticated user's full portfolio metrics on Pear Protocol: bucketed PnL across last 1 day / 1 week / 1 month / 1 year / all-time, plus overall stats (total trades, all-time volume, current open interest, unrealized PnL). Requires PEAR_API_KEY.

No parameters

get_trade_history

Fetch the authenticated user's recent closed trades on Pear Protocol with realized PnL, entry/exit ratios, and pair composition. Optional date range and limit. Requires PEAR_API_KEY.

| Parameter | Type | Required | Description | |-----------|------|----------|-------------| | limit | integer | | Max number of trades to return. Default 50. | | startDate | string | | ISO 8601 timestamp or epoch ms. Only return trades on or after this time. | | endDate | string | | ISO 8601 timestamp or epoch ms. Only return trades on or before this time. |

get_twap_orders

List the authenticated user's active TWAP (time-weighted average price) orders on Pear Protocol, including chunk execution and fill detail. Requires PEAR_API_KEY.

No parameters

list_markets

Browse Pear Protocol pair markets with optional filters and pagination. Each market is a long/short composition with current ratio, 24h change, volume, open interest, and funding. Use to discover what's tradable, or with searchText to find a specific pair.

| Parameter | Type | Required | Description | |-----------|------|----------|-------------| | search | string | | Free-text search across market names (composition keys like L:BTC|S:ETH). | | engine | string | | Filter by execution engine. | | minVolume | number | | Minimum 24h volume in USD. | | change24h | number | | Minimum 24h ratio change (e.g. 0.05 for +5%). | | netFunding | number | | Filter by net funding rate. | | sort | string | | Sort key (e.g. 'volume', 'change24h'). | | page | integer | | Page number (1-indexed). | | pageSize | integer | | Results per page. Default 20. |

open_position

Open a new pair position on Pear Protocol. Specify executionType (MARKET / TRIGGER / TWAP / LADDER / TP / SL / SYNC), leverage (1-100), usdValue (≥1), slippage (0.001-0.1), and the long/short asset compositions (arrays of { asset, weight }). Optionally attach stopLoss/takeProfit and TWAP/TRIGGER/LADDER parameters. WRITE: executes a real trade. Requires PEAR_TRADE_ENABLED=true.

| Parameter | Type | Required | Description | |-----------|------|----------|-------------| | executionType | string | yes | | | leverage | integer | yes | | | usdValue | number | yes | | | slippage | number | yes | | | longAssets | array | yes | | | shortAssets | array | yes | | | triggerValue | number | | | | triggerType | string | | | | direction | string | | | | twapDuration | number | | | | twapIntervalSeconds | number | | | | randomizeExecution | boolean | | | | ladderConfig | object | | | | stopLoss | unknown | | | | takeProfit | unknown | | | | referralCode | string | | |

set_risk_parameters

Set or update stop-loss / take-profit on an existing Pear Protocol position. Each threshold has type ('PRICE' or 'PERCENTAGE'), value, and optional trailing fields. Pass null to clear a field; omit it to leave unchanged. WRITE: changes risk parameters on a live position. Requires PEAR_TRADE_ENABLED=true.

| Parameter | Type | Required | Description | |-----------|------|----------|-------------| | positionId | string | yes | | | stopLoss | unknown | | | | takeProfit | unknown | | |

Development

pnpm install
pnpm run build
pnpm test
pnpm run lint
pnpm run format

Live smoke tests:

PEAR_API_KEY=<real> pnpm test smoke

Trade execution (v0.2)

Ten new tools that take mcp-pear from read-only to write. All write tools are off by default. Set PEAR_TRADE_ENABLED=true to unlock them (strict literal match on "true"; anything else, including "True", "1", or "yes", keeps writes disabled). Pear signs trades server-side via an agent wallet you create, so mcp-pear never holds private keys for trades.

| Tool | Type | Description | |---|---|---| | get_agent_wallet | read | Get the agent wallet Pear uses to sign your trades. | | create_agent_wallet | write | Create one. After creation, approve it on Hyperliquid (the response message contains the instructions). | | open_position | write | Open a pair position. Supports MARKET, TRIGGER, TWAP, LADDER, TP, SL, SYNC. | | close_position | write | Close one position by id (MARKET or TWAP). | | close_all_positions | write | Close every open position with one execution type. | | adjust_position | write | Reduce or increase position size by 1 to 100 percent. MARKET or LIMIT. | | adjust_leverage | write | Set leverage 1 to 100x on an existing position. Carries liquidation risk. | | set_risk_parameters | write | Set or update TP and SL on an existing position. | | cancel_order | write | Cancel a pending limit, TP, or SL order. | | cancel_twap_order | write | Cancel a TWAP order and its remaining chunks. |

| Env var | Default | Description | |---|---|---| | PEAR_TRADE_ENABLED | unset | Set to "true" (lowercase, exact) to unlock the write tools. Anything else keeps them disabled and the gate error is returned to the LLM. |

When PEAR_TRADE_ENABLED=true, mcp-pear logs [mcp-pear] PEAR_TRADE_ENABLED=true. Trade execution unlocked. to stderr on startup so operators can see writes are live.

Funding and minimums

Trades execute on Hyperliquid, which margins positions from your Perps balance. Two things bite first-time operators:

• Minimum order size. Hyperliquid rejects orders below ~$10 notional. usdValue is the position's USD notional (margin = usdValue / leverage), so a single-leg position needs usdValue at or above 10. A long plus short pair is two separate orders, each subject to the $10 floor (about $20 or more notional total).
• Spot vs Perps balance. USDC bridged onto Hyperliquid (for example via Circle CCTP) often lands in your Spot balance. Move it to Perps in the Hyperliquid app before trading, or open_position fails with insufficient margin.

What's next

v0.3. WebSocket streaming for real-time market and position updates. Spot orders. Candle synthesis from Hyperliquid candleSnapshot.

Disclaimer

Not affiliated with Pear Protocol. Independent wrapper around Pear's public API. v0.2 trade-execution tools are off by default and require explicit operator opt-in (PEAR_TRADE_ENABLED=true). Pear signs server-side, so mcp-pear never holds private keys. Use at your own risk; no warranty.

License

MIT. See LICENSE.