Set Max Fixed Rate

curl -X POST "https://api.trusset.org/lending-external-securities-v2/api/markets/{marketId}/max-fixed-rate" \
  -H "X-API-Key: trusset_your_key_here" \
  -H "Content-Type: application/json" \
  -d '{ "maxFixedRateBps": 1200 }'

const url = `https://api.trusset.org/lending-external-securities-v2/api/markets/${marketId}/max-fixed-rate`;
const headers = { 'X-API-Key': 'trusset_your_key_here', 'Content-Type': 'application/json' };

const build = await fetch(url, {
  method: 'POST',
  headers,
  body: JSON.stringify({ maxFixedRateBps: 1200 })
});
const { data: calldata } = await build.json();

const tx = await ownerWallet.sendTransaction({
  to: calldata.to,
  data: calldata.data,
  value: calldata.value,
  chainId: calldata.chainId
});
await tx.wait();

await fetch(url, { method: 'POST', headers, body: JSON.stringify({ txHash: tx.hash }) });

{
  "success": true,
  "data": {
    "action": "SIGN_TRANSACTION",
    "transaction": {
      "to": "0x3b25752c1459c5cf1b0bfcfdf0d56883c8047423",
      "data": "0x..."
    },
    "to": "0x3b25752c1459c5cf1b0bfcfdf0d56883c8047423",
    "data": "0x...",
    "functionName": "setMaxFixedRate",
    "requiredRole": "INTEREST_MODEL_OWNER",
    "description": "Tighten the fixed-rate ceiling to 1200 bps (requires interest model owner; downward only)",
    "requiredSigner": "0x5ad87a0621175206b72d10e4b8577b192e7f40ab",
    "heldByThisInstance": false,
    "signerAddress": null,
    "note": "Only the interest model owner (0x5ad87a0621175206b72d10e4b8577b192e7f40ab) can sign this transaction, and no wallet registered on this instance is that owner: signed from any other wallet it reverts OwnableUnauthorizedAccount. Hand the calldata to the owner, or take the model over first.",
    "confirmWith": {
      "endpoint": "POST /lending-external-securities-v2/api/markets/clx_secmarket_001/max-fixed-rate",
      "field": "txHash"
    },
    "chainId": 11155111,
    "value": "0"
  }
}

{
  "success": false,
  "error": {
    "code": "MAX_FIXED_RATE_ONLY_DECREASES",
    "message": "The maxFixedRate ceiling moves downward only: it is 1500 bps now, recorded at adoption so no later operator can loosen what the terms bound."
  }
}