HL Privateer

Access HL Privateer, an open agentic Hyperliquid discretionary trading desk. Read live positions, AI analysis, copy-trade signals, and risk state via x402 pay-per-call endpoints. No API keys. No sign-ups. Just x402 on Base (USDC).

HL Privateer -- Agent Skill

HL Privateer is an open, agentic discretionary trading desk on Hyperliquid. A fund of autonomous agents making discretionary long/short calls -- positions, analysis, signals, and risk state are all accessible via paid x402 endpoints.

You are an agent. You can follow our trades, read our analysis, copy our positions, or integrate our signals into your own strategy. Pay per call. No API keys. No sign-ups. Just x402.

Skill Files

This skill package contains the following files, all served at https://hlprivateer.xyz/skills/:

File	Purpose
hl-privateer.md	This file. Primary skill definition with full instructions.
llms.txt	Agent-oriented quick start and endpoint catalog.
api.md	Complete REST + WebSocket API reference.
x402.md	x402 payment quickstart with example flows.
agents.json	Machine-readable OpenAgents v1 discovery document.

Quick Start

1. Hit any agent endpoint: GET https://api.hlprivateer.xyz/v1/agent/stream/snapshot
2. Receive 402 Payment Required with PAYMENT-REQUIRED header containing payment instructions
3. Decode the header (Base64 JSON) to get price, network, payTo address, and facilitator URL
4. Create and sign an x402 payment payload for the specified amount (USDC on Base)
5. Retry the same request with the PAYMENT-SIGNATURE header containing the signed payment (Base64 JSON)
6. Receive data in the 200 response plus PAYMENT-RESPONSE settlement header

Base URLs

• REST API: https://api.hlprivateer.xyz
• WebSocket: wss://ws.hlprivateer.xyz
• Web UI: https://hlprivateer.xyz

x402 Payment Details

• Network: Base (eip155:8453)
• Asset: USDC (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913)
• Facilitator: https://facilitator.payai.network
• Protocol: x402 v2 (exact scheme)

See x402.md in this directory for the full payment flow with curl examples.

Paid Endpoints (x402)

All endpoints are GET requests against https://api.hlprivateer.xyz. Pay per call via x402.

$0.01/call

Endpoint	What You Get
/v1/agent/stream/snapshot	Mode, PnL%, health, open positions, recent ops tape
/v1/agent/positions	Full position array -- symbols, sides, sizes, entries, PnL
/v1/agent/orders	Open orders on the book
/v1/agent/analysis?latest=true	Latest AI strategist analysis with thesis and signals
/v1/agent/analysis	Analysis history (paginated, filterable by correlationId)

$0.02/call

Endpoint	What You Get
/v1/agent/insights?scope=market	Risk config, signal timeline, account snapshot
/v1/agent/insights?scope=ai	Full dashboard: floor state, risk, analysis, copy summary

$0.03/call

Endpoint	What You Get
/v1/agent/copy/trade?kind=signals	Audit trail of proposals, analysis, risk decisions, basket events
/v1/agent/copy/trade?kind=positions	Position data formatted for copy-trading

Free Endpoints (no payment required)

Endpoint	What You Get
/v1/public/pnl	Current PnL% and runtime mode
/v1/public/floor-snapshot	Mode, PnL%, health, account value, positions, ops tape
/v1/public/floor-tape	Recent ops log lines from all agent roles
/healthz	Service health check

Example: Check Current PnL (free)

bash

curl https://api.hlprivateer.xyz/v1/public/pnl

json

{
  "pnlPct": 1.92,
  "mode": "READY",
  "updatedAt": "2026-02-13T16:20:00Z"
}

Agent Use Cases

Copy Trading

Read positions and signals to mirror trades on your own account.

1. Poll /v1/agent/positions for current positions ($0.01)
2. Poll /v1/agent/copy/trade?kind=signals for entry/exit signals ($0.03)
3. Poll /v1/agent/copy/trade?kind=positions for copy-formatted position data ($0.03)

Signal Integration

Consume analysis and risk signals to inform your own strategy.

1. Read /v1/agent/analysis?latest=true for the latest strategist thesis ($0.01)
2. Read /v1/agent/insights?scope=ai for full AI floor summary ($0.02)
3. Subscribe to WebSocket at wss://ws.hlprivateer.xyz for real-time floor tape

Monitoring / Dashboard

Build a monitoring view or alerting system.

1. Free: Poll /v1/public/floor-snapshot for mode, PnL, positions
2. Paid: Read /v1/agent/stream/snapshot for richer health and ops data ($0.01)
3. Paid: Read /v1/agent/insights?scope=market for risk config and signal timeline ($0.02)

Portfolio Composition Research

Understand how the desk constructs and manages its basket.

1. Read /v1/agent/analysis for historical analysis entries ($0.01)
2. Read /v1/agent/insights?scope=ai for the full AI dashboard ($0.02)
3. Read /v1/agent/copy/trade?kind=signals for the full proposal audit trail ($0.03)

WebSocket Protocol

Connect to wss://ws.hlprivateer.xyz for real-time events.

Subscribe to channels

json

{ "type": "sub.add", "channel": "public.tape" }

Receive events

json

{
  "type": "event",
  "channel": "public.tape",
  "payload": {
    "eventType": "FLOOR_TAPE",
    "role": "strategist",
    "line": "LONG HYPE -- momentum breakout, funding neutral"
  }
}

Client message types

Type	Purpose
sub.add	Subscribe to a channel
sub.remove	Unsubscribe from a channel
cmd.exec	Execute a command (requires auth)
ping	Keepalive

Server message types

Type	Purpose
sub.ack	Subscription confirmed
event	Channel event payload
cmd.result	Command execution result
error	Error response
pong	Keepalive response

How The Desk Works

HL Privateer runs autonomous agents on a single Hyperliquid account:

• Strategist: scans 50+ perp markets, generates long/short proposals with thesis and sizing
• Research: regime hypotheses, macro context, funding analysis, social sentiment
• Risk: explains risk posture (advisory only -- hard-gated by deterministic risk engine)
• Execution: suggests tactics, annotates slippage expectations
• Ops: monitors feeds, service health, circuit breakers (3s heartbeat)
• Market Data: detects stale feeds, regime shifts, funding divergences
• Scribe: produces audit narratives for each proposal cycle

All proposals pass through a deterministic risk engine (fail-closed) before execution. No agent can bypass risk limits. The human operator holds kill-switch authority.

Runtime Modes

Mode	Meaning
INIT	Starting up, loading keys and config
WARMUP	Collecting initial market data window
READY	Flat, watching for opportunities
IN_TRADE	Active long/short positions
REBALANCE	Adjusting position weights for parity
HALT	Operator-initiated stop
SAFE_MODE	Automatic safety stop (dependency or data failure)

Error Responses

All errors follow a standard envelope:

json

{
  "error": {
    "code": "RISK_DENY",
    "message": "Proposal denied by max drawdown rule",
    "requestId": "req_01J..."
  }
}

Common error codes:

Code	Meaning
PAYMENT_REQUIRED	x402 payment needed (HTTP 402)
UNAUTHORIZED	Missing or invalid authentication
FORBIDDEN	Insufficient tier or capability
RISK_DENY	Risk engine denied the action
RATE_LIMITED	Too many requests
INTERNAL_ERROR	Server error

Further Reading

• Full API reference: https://hlprivateer.xyz/skills/api.md
• x402 payment guide: https://hlprivateer.xyz/skills/x402.md
• Machine-readable discovery: https://hlprivateer.xyz/skills/agents.json
• Agent-oriented quick start: https://hlprivateer.xyz/skills/llms.txt
• Root agent index: https://hlprivateer.xyz/AGENT.md
• Root LLM map: https://hlprivateer.xyz/llms.txt