Robinhood Chain Trading Terminal Architecture: REST Snapshots Plus WebSocket Updates

How to structure a Robinhood Chain (chain id 4663) trading terminal: one include-scoped REST snapshot per token, then price, risk, lock and candle events over one WebSocket. Runnable code with watchTokenIntelligence() from robinhood-chain-x402 0.21.0, plus the Ultra firehose trade-off.

MadeOnSol·October 10, 2026· 8 min read

Robinhood Chain Trading Terminal Architecture: REST Snapshots Plus WebSocket Updates

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import { MadeOnSol } from "madeonsol";

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const client = new MadeOnSol({ apiKey: "msk_your_key" });

const { trades } = await client.kol.feed({ limit: 10 });
const { alerts } = await client.deployer.alerts({ limit: 5 });
const { tools } = await client.tools.search({ q: "trading" });

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Runnable example: one RHC panel in Node

npm install [email protected]
MADEONSOL_API_KEY=msk_... RHC_TOKEN_ADDRESS=0x... node rhc-panel.mjs

// rhc-panel.mjs (Node 22+). Key mode only: a keyless x402 client throws
// token_intelligence_requires_api_key. x402 pay-per-call never opens a WebSocket.
import { RobinhoodChainX402 } from "robinhood-chain-x402";

const client = new RobinhoodChainX402({ apiKey: process.env.MADEONSOL_API_KEY });
const stream = client.stream(); // one shared socket for every panel

const view = client.watchTokenIntelligence(process.env.RHC_TOKEN_ADDRESS, {
  stream,
  subId: "rhc_panel_main",
  tier: "PRO",
  include: ["snapshot", "risk", "flow"], // cost 7 of 8
  onChange(v) {
    console.log("phase", v.phase, "stale", v.stale, "no_push", v.no_push, "incomplete", v.incomplete);
    for (const [name, m] of Object.entries(v.snapshot?.modules ?? {})) {
      console.log(" ", name, m.status, m.reason ?? "", m.as_of ?? "");
    }
  },
  onLive(frame, module) {
    if (module === "snapshot") console.log("price overlay", frame.data);
  },
});

process.once("SIGINT", () => { view.dispose(); stream.close(); });

On an Ultra plan, a desk that wants finer flow refreshes can add includeRhcFirehose: true and set tier: "ULTRA". Measure the bandwidth first: you are subscribing to the chain's whole attributed tape.

Several panels and a browser front end

Each panel is one named subscription on the same socket: 5 per connection on Pro, 10 on Ultra, 20 on Business. The price, candle and risk channels also cap the addresses one connection watches (25 on Pro, 100 on Ultra, 250 on Business), and a subscribe over the cap is rejected rather than truncated.

For a browser terminal, keep the msk_ key on your server. robinhood-chain-x402 exports the controller (createTerminalTokenView) and terminalStreamPort, so the page can use a RobinhoodChainStream whose getToken calls your backend, and a read that calls your backend's proxy of the intelligence GET:

// browser, no API key
import { RobinhoodChainStream, terminalStreamPort, createTerminalTokenView } from "robinhood-chain-x402";

const stream = new RobinhoodChainStream({
  getToken: () => fetch("/api/my/rhc-stream-token", { credentials: "include" }).then((r) => r.json()),
});

export function mountRhcPanel(el, address, subId) {
  const view = createTerminalTokenView({
    chain: "robinhood-chain", address, tier: "PRO", subId,
    include: ["snapshot", "risk", "locks"],
    stream: terminalStreamPort(stream),
    read: (include) =>
      fetch("/api/my/rhc-intel/" + address + "?include=" + include.join(","), { credentials: "include" })
        .then((r) => { if (!r.ok) throw new Error("intel_" + r.status); return r.json(); }),
    onChange: (v) => { el.dataset.phase = v.phase; el.dataset.incomplete = String(v.incomplete); },
  });
  view.start();
  return () => view.dispose(); // close the shared stream when the last panel unmounts
}

Why not poll

The combined endpoint GET /api/v1/rhc/tokens/{address}/intelligence?include=... is a bounded first paint: you name up to 5 modules, total cost at most 8, and every read counts as one API call. Calling it on a timer for every open panel multiplies source reads and quota for data that mostly did not change. Prices change far more often than locks or risk inputs, so treating them the same is the expensive mistake.

The RHC modules and their costs:

Module	Cost	Notes on Robinhood Chain
`snapshot`	2	Price and market snapshot
`risk`	2	Risk verdict
`flow`	3	Buy and sell flow
`buyer_quality`	2	Buyer scoring
`top_traders`	2	Largest traders
`kol`	1	KOL consensus
`locks`	1	Locks and vesting
`holders`	3	Indexed holders, opt-in, snapshot only
`holder_count`	1	Not served on RHC in this release

Module

Cost

Notes on Robinhood Chain

snapshot

Price and market snapshot

risk

Risk verdict

flow

Buy and sell flow

buyer_quality

Buyer scoring

top_traders

Largest traders

kol

KOL consensus

locks

Locks and vesting

holders

Indexed holders, opt-in, snapshot only

holder_count

Not served on RHC in this release

Each module returns its own status (ready, partial_history, unverified, unavailable or timeout), reason, as_of and provenance. The response also states chain_id 4663 and native_asset ETH, and the address is canonicalised to lowercase.

The event map

All of this rides the main stream, wss://madeonsol.com/ws/v1/stream, which carries 31 channels (16 Solana, 15 Robinhood Chain). There is no rhc:token_intelligence channel. The helper subscribes the existing ones with filters.addresses:

Module	Channel	Events	Plan
`snapshot`	`rhc:token_prices`	`rhc:token_price` (live overlay, no REST read)	Pro and up
`risk`	`rhc:token_risk`	`rhc:risk_verdict`, `rhc:risk_verdict_changed`	Pro and up
`locks`	`rhc:token_locks`	`rhc:token_lock`, `rhc:token_unlock_upcoming`, `rhc:token_unlock_available`	Pro and up
`flow`, `buyer_quality`, `top_traders`	`rhc:token_candles`	`rhc:candle_closed`, `rhc:candle_revised`	Pro and up
`flow`, `buyer_quality`, `top_traders`	`rhc:dex_trades`	`rhc:dex_trade`, only with `includeRhcFirehose: true`	Ultra and up
`kol`	`rhc:kol_trades`	`rhc:kol_trade`, only with `includeKolBroadcast: true`	Pro and up
`holders`	none	snapshot only

Module

Channel

Events

Plan

snapshot

rhc:token_prices

rhc:token_price (live overlay, no REST read)

Pro and up

risk

rhc:token_risk

rhc:risk_verdict, rhc:risk_verdict_changed

Pro and up

locks

rhc:token_locks

rhc:token_lock, rhc:token_unlock_upcoming, rhc:token_unlock_available

Pro and up

flow, buyer_quality, top_traders

rhc:token_candles

rhc:candle_closed, rhc:candle_revised

Pro and up

flow, buyer_quality, top_traders

rhc:dex_trades

rhc:dex_trade, only with includeRhcFirehose: true

Ultra and up

kol

rhc:kol_trades

rhc:kol_trade, only with includeKolBroadcast: true

Pro and up

holders

none

snapshot only

Two of those rows deserve a warning. rhc:kol_trades is a roster broadcast, not filtered to your token. And rhc:dex_trades is not filtered by address at the server: with the opt-in you receive the whole attributed RHC tape on that socket, and the helper filters it client-side only to decide which module to mark stale. That is useful for a busy desk on Ultra. For a light terminal, leave it off and let candle closes drive the refresh.

The loop, step by step

Subscribe and wait. The panel sends a named subscribe (its own sub_id) on the shared socket and waits for the ACK naming that sub_id and every channel. A partial or refused ACK puts the view in phase: "degraded" with incomplete: true.

Snapshot once. After the ACK, one include-scoped REST read.

Overlay prices. rhc:token_price ticks go to view.live.snapshot. They never rewrite the REST snapshot and never trigger a read. A late tick never replaces a newer one.

Re-read selectively. A risk, lock, KOL or candle event marks only its module stale. Refreshes are debounced (750 ms by default), each module waits at least 15 seconds between reads by default (1 second to 10 minutes allowed), and no read exceeds 5 modules or cost 8. Quiet stream, zero reads.

Reconnect honestly. The SDK re-subscribes, the helper takes a fresh snapshot after the re-ACK, and any reported replay gap keeps incomplete: true until you reconcile it yourself.

Robinhood Chain Trading Terminal Architecture: REST Snapshots Plus WebSocket Updates

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Why not poll

The event map

The loop, step by step

Beyond the intelligence modules

Limitations

Next steps