New CC View API endpoint reports venue reward weight and CC per day for issuers

Small update from the CC View API side that might be useful for issuers and venue operators here.
We added an endpoint that answers a question we kept getting asked: for a given asset issuer, how much reward weight (and roughly how much CC) does activity at a specific venue generate on a given day. It also tells you whether that venue is DvP and whether it’s the issuer’s own.

The calculation already follows the recent changes to the exceptions list and DvP venue statuses, so it should line up with what’s actually being scored now.
Request:
GET /api/rewards/asset-issuer/{issuer_party_id}?venue_party_id=...&day=2026-09-08

Sample response:

 "venue": "pixelplex-mainnet-3::12209a8e...23ac6",
 "is_dvp": true,
 "is_own": false,
 "available_rewards_weight": "44191.977",
 "estimated_available_rewards_cc": "185191.369",
 "total_txs": 44192,
 "avg_traffic_bytes": "37863.70"
}```
We’ve checked our methodology against the DA Utility rewards across most asset issuers and venues and the numbers match on our side. if you spot anything that looks off from where you sit we’d genuinely like to hear it.

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*Originally shared in the Canton Foundation Slack (#cf-outreach).*