Dynamic odds API on a Pinnacle WebSocket

Answer: dynamic odds are prices that change as the market trades. PinnFeed delivers them as a snapshot, then deltas on wss://pinnfeed.io/v1/stream (Builder €99/mo). After subscribe, wait until a snapshot part arrives with final: true, then apply each delta upsert or remove. Free and Hobby keys get 403 plan_lacks_ws — they can still poll /v1/odds. This is a definition and a how-to, not a latency contest.

How the stream carries a moving book#

1. Connect to /v1/stream with x-api-key: ps_live_... (or ?key=).
2. Subscribe to the sports or events you need.
3. Rebuild from snapshot parts (clear local maps when part === 1).
4. Apply delta upserts and removes as prices move.
5. Reply {"type":"pong"} to pings.

// Builder WebSocket — educational sketch, not a benchmark
if (msg.type === "snapshot" && msg.part === 1) { events.clear(); markets.clear(); }

Protocol: snapshot vs delta, WebSocket docs, integration guide.

A polling client only sees a change on its next request, so on average it is half a polling interval late, plus the request round-trip. That is arithmetic, not a measured delay versus any named vendor. We do not publish or invent competitor latencies.

Plans#

Dynamic (pushed) odds need Builder (€99/mo, or €990/yr ≈ €82.50/mo) or Pro. Hobby (€29/mo) is real-time REST only. Free is delayed REST. Each market also carries fair, margin and maxStake (a floor around 100 is a common thin-line filter).

Try it#

Start a 3-day Builder trial (€99/mo, VAT incl. where applicable) or get a free delayed REST key to inspect snapshots. Paid plans: 3-day trial; a card is required and it is charged after day 3 unless you cancel.

Educational content for adults (18+). No tips, no guaranteed profit.

Questions people ask#

Is a REST poller “dynamic odds”?#

You can poll /v1/odds and see new prices on each request. “Dynamic” in the live sense is the WebSocket: the server pushes each change. Polling stays half an interval behind on average.

Which plan?#

The stream is Builder (€99/mo) or Pro. See prematch vs live + prematch.

Do you claim lower latency than other vendors?#

No. Measure it yourself on your path: latency honesty.