Arcus
It can place orders without you approving each one. Paper trading is available.
Can trade unattended
From our listingOfficial MCP server for the docs only (it can't trade). Keys made through the public API are trade-only and expire; a withdrawal needs the wallet's own signature and only pays your own address
- Category
- Crypto exchanges
- Pricing
- no API fee
- Best for
- Crypto exchanges · perpetuals on stocks, indexes, commodities and crypto, tokenized stocks (spot)
- Verified
- 2026-11-10
Safety score
| Input | From official docs or our listing | Points |
|---|---|---|
| Human approval | API orders execute with no per-order approval step source | 0 / 25 |
| Guardrails outside the agent | No per-order approval; a scheduled cancel-all (dead-man's switch) limits what is left open if the bot stops (official docs) source | 8 / 15 |
| Test before real money | Public testnet on Robinhood Chain testnet; the app credits about $1,000 of test collateral (official docs) source | 15 / 15 |
| Sending funds out | Keys made through the public API are trade-only; a withdrawal needs the wallet's own signature and only pays the owner's own address (official docs) source | 15 / 15 |
| Who holds the keys | Revocable keys with an expiry date, each one bound to one of ten subaccounts (official docs) source | 10 / 10 |
| Open source or audited | Trail of Bits and OpenZeppelin reviewed the on-chain contracts; the matching engine is run by Arcus and is not open source (official docs) source | 10 / 10 |
| Incident record (last 12 months) | No incident naming this tool in our incident tracker in the last 12 months (incident tracker) | 10 / 10 |
| Total | 68% of the points we could check | 68 / 100 |
Full facts
| Category | Exchanges & brokers for bots |
|---|---|
| Assets | perpetuals on stocks, indexes, commodities and crypto, tokenized stocks (spot) |
| Live vs paper | live; public testnet (the app credits about $1,000 of test collateral) |
| Order approval / safety | Official MCP server for the docs only (it can't trade). Keys made through the public API are trade-only and expire; a withdrawal needs the wallet's own signature and only pays your own address |
| Pricing / free tier | no API fee; fees are tiered by volume and set per market, with no rates in the docs (the API returns them) |
| Rate limits | REST: 1,500 weight per minute per IP. Orders: 20,000 orders and 40,000 cancels per subaccount to start, growing with traded volume. |
| Official / community | official |
| Last checked | 2026-11-10 |
| Source | docs.arcus.xyz |
| Regions (US / UK / EU) | Not available in the US, Canada, the UK and other restricted places (docs disclaimer). |
See also: Keep what the bot doesn't trade in a scored hardware wallet
Safety check: Is Arcus safe to connect to an AI agent?