DOCUMENTATION
Build on the trust layer
A single REST surface for equities, options and crypto. Every response is signed and reproducible on the settlement chain.
01
Quickstart
Create an API key, place your first paper trade in under 5 minutes.
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02
Authentication
Bearer tokens, OAuth for retail apps, wallet signatures for on-chain flows.
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03
Orders API
Market, limit, stop, OCO. Idempotency keys and partial fills.
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04
Portfolio API
Positions, tax lots, and Proof-of-Fill receipts as signed JSON.
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05
Settlement Ledger
Query the public settlement chain by block, hash, or account.
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06
Webhooks
Subscribe to fills, price alerts, and margin events with HMAC signing.
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curl · place order
curl -X POST https://api.robinnexus.io/v1/orders \
-H "Authorization: Bearer $RNX_KEY" \
-H "Content-Type: application/json" \
-d '{ "symbol": "AAPL", "qty": 10, "side": "buy", "type": "market" }'