Swyftx MCP Connector — InvalidAssetError on Market Buy Orders (POST /orders/)

[shalvamanjunath-sketch]

Pre-submission Checklist

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Discussion Topic

Summary
Market buy orders placed through the Swyftx MCP connector in Claude AI consistently fail with an InvalidAssetError. All read operations work perfectly — only order placement is broken.
Environment

Platform: Claude AI (Anthropic)
Connector: Swyftx MCP
Endpoint: POST /orders/ — api.swyftx.com.au

Error Message
{"error":{"error":"InvalidAssetError","message":"Values for primary, secondary and assetQuantity must be valid asset codes"}}
Root Cause (confirmed with Swyftx support)
The connector passes a single asset code (e.g. "ETH") instead of the required primary/secondary asset pair format:

❌ Current: asset: "ETH"
✅ Required: primary: "AUD", secondary: "ETH"

Swyftx API Docs
https://docs.swyftx.com.au/
What Works ✅

Portfolio balance retrieval
Live asset price fetching
Account info retrieval

What Doesn't Work ❌

Market buy orders (tested with BTC, ETH, SOL)

Steps to Reproduce

Connect Swyftx MCP connector in Claude AI using a valid API key with trade permissions
Request a market buy (e.g. "Buy $15 AUD of ETH at market price")
Connector calls POST /orders/ and receives InvalidAssetError

Expected Behaviour
Order placed successfully with correct primary/secondary asset pair passed in the request body.