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Trading ToolBetaSelf-Reported

Arcus

Arcus is a tool/service, closed source, on Robinhood Chain.

Stock-token spot and perpetuals DEX on Robinhood Chain from the dYdX team, with REST/WebSocket trading APIs and a docs MCP server.

Website ↗Docs ↗X / Twitter ↗

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Overview

Arcus describes itself as a decentralized exchange built in partnership with Robinhood on Robinhood Chain, trading Stock Tokens spot plus perpetuals across equities, crypto, commodities and indices (https://arcus.xyz/). The Block reports it was built by the team behind dYdX and that it launched ERC-20 'pTokens' for perp positions in August 2026 (https://www.theblock.co/news/defi/2026-08-25-robinhood-chain-dex-arcus-ptokens-perps-erc-20s-412696). The docs cover REST and WebSocket APIs with Ed25519-key request signing (https://docs.arcus.xyz). The MCP server at https://docs.arcus.xyz/mcp serves API documentation only and does not place trades (https://docs.arcus.xyz/ai-tools/mcp). Robinhood's chain docs list Arcus as a perpetuals DEX partner (https://docs.robinhood.com/chain/), and Arcus says it is not available in the US, UK or Canada.

Details

Chains
Robinhood Chain
Agent types
Perps DEX, Trading Venue
Open source
No
Last checked
2026-09-22

Marketplace Signals

No marketplace signals recorded for this resource yet.

Verification status reflects evidence reviewed by Sato Hub. Self-reported claims are never presented as verified.

#perps#stock-tokens#dex#rest-api#websocket#docs-mcp#robinhood-chain#dydx

Where Arcus fits

Trading

Related concepts: How Agents Interact With Smart Contracts, How Agents Use Wallets

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Listing History

Recorded changes to Arcus's listing — status, verification, Sato Score, and recent releases. Full history is kept in the listing record.

  1. Sep 23, 2026
    Listed on Sato Hub

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Questions people ask about Arcus

Is Arcus open source?
No. Arcus is closed source as of 2026-09-22.
Which chains does Arcus support?
Arcus lists support for Robinhood Chain as of 2026-09-22.
Is Arcus still maintained?
Sato Hub has no activity signal for Arcus; it cannot say whether it is maintained.
How do I install or run Arcus?
Sato Hub has no deploy spec for Arcus; follow the project's own documentation at https://docs.arcus.xyz.
Is Arcus verified on Sato Hub?
No independent verification is on record for Arcus; its verification status is "Self-Reported". Self-reported is not verified, and the score is not a safety, quality or returns grade.

Cite this page

Sato Hub. "Arcus — Sato Hub." Sato Hub, updated 2026-09-22, accessed 2026-09-23. https://satohub.ai/resources/arcus

Data last refreshed 2026-09-22; this page is rebuilt daily. Citations carry the date so a reader can tell which snapshot a claim came from. Catalog data is licensed CC-BY-4.0.

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