Build on Chatple

Quick start

One import, no key, no dependencies — works in the browser and in Node 18+. Or generate a client from the OpenAPI spec.

import { Chatple } from "https://chatple.com/sdk/chatple.js";

const chatple = new Chatple();

// every new Chatple coin and every trade, live
const stop = chatple.subscribe({
  onLaunch: (coin) => console.log("launched", coin.symbol, coin.url),
  onTrade: (t) => console.log(t.side, t.symbol, Number(t.quoteAmount) / 1e9, "SOL"),
});

const { tokens } = await chatple.tokens({ limit: 20 });           // newest coins
const { candles } = await chatple.candles(tokens[0].mint, { tf: "5m" });
const overlay = chatple.overlayUrl(tokens[0].mint, { pos: "br" }); // OBS browser source

REST endpoints

{
  "tokens": [{
    "mint": "9NQV…sCHAT", "symbol": "MRCC", "name": "Mr.ChanChan",
    "image": "https://uploads.chatple.com/…", "creator": "44Ep…olzb",
    "createdAt": "2026-10-03T13:45:12.000Z", "url": "https://chatple.com/t/9NQV…sCHAT",
    "price": 2.8e-8, "marketCapSol": 28.0, "curveProgress": 0.01, "graduationSol": 85,
    "graduated": false, "pool": "…", "dammPool": null,
    "config": "4Ygeb2Bv…", "preset": "fair", "quoteMint": null
  }],
  "next": "2026-10-03T13:45:12.000Z"
}

{
  "token": { …same shape as above… },
  "stats": { "volume24h": 1.2, "trades24h": 5, "change": { "m5": 0, "h1": -0.03, "h6": -0.03, "h24": -0.03 } },
  "feeRecipients": [{ "kind": "handle", "key": "twitch:mr_chanchan", "label": "twitch/mr_chanchan", "bps": 10000 }]
}

{
  "trades": [{ "signature": "5x…", "side": "buy", "wallet": "8P4u…uRyn",
    "quoteAmount": "500000000", "tokenAmount": "17123456789012", "price": 2.89e-8,
    "viaCaller": false, "time": "2026-10-03T13:46:01.000Z" }],
  "next": "2026-10-03T13:46:01.000Z"
}

{ "candles": [{ "time": 1791020700, "open": 2.79e-8, "high": 2.89e-8, "low": 2.79e-8, "close": 2.89e-8, "volume": 0.7 }] }

{
  "name": "Chatple", "dbcProgram": "dbcij3LWUppWqq96dh6gJWwBifmcGfLSB5D4DuSMaqN",
  "configs": [{ "preset": "fair", "config": "4Ygeb2Bv…", "migrationQuoteThresholdSol": 85,
    "antiSniper": { "startingFeeBps": 5000, "endingFeeBps": 100, "durationSeconds": 120 }, … }],
  "identify": { "launchpadSigner": "4XD9…vDY1", "memo": "chatple:launch", "vanityMintSuffix": "CHAT" }
}

Live data stream

GET /api/v1/stream is a Server-Sent Events feed of new launches and trades across Chatple (or one coin with ?mint=). Events carry an id, so a reconnecting client resumes where it left off.

events

launch,trade (default both)

mint

only this coin's trades

since

ISO time to replay from (or the Last-Event-ID header)

const es = new EventSource("https://chatple.com/api/v1/stream?events=launch,trade");
es.addEventListener("launch", (e) => {
  const coin = JSON.parse(e.data);           // same shape as /api/v1/tokens
  console.log("new coin", coin.symbol, coin.url);
});
es.addEventListener("trade", (e) => {
  const t = JSON.parse(e.data);              // { mint, symbol, side, wallet, quoteAmount, price, signature, time }
  console.log(t.side, t.symbol, Number(t.quoteAmount) / 1e9, "SOL");
});

Stream overlay widget

A transparent, embeddable card for OBS / Streamlabs (browser source, 1920×1080) or any page: live price and market cap in USD, the fees the coin has earned for its creator, a scan-to-buy QR, and an alert with a chime on every buy.

https://chatple.com/overlay/{mint}?pos=bl&scale=1&sound=1&sells=0

pos    bl | br | tl | tr   corner of the 1920×1080 canvas
scale  0.5 – 2
sound  0 to mute the buy chime
sells  1 to alert on sells too

<iframe src="https://chatple.com/overlay/{mint}?pos=bl" width="1920" height="1080"
        style="border:0;background:transparent" allowtransparency></iframe>

Use our curve & fee presets in your launchpad

Building your own launchpad on Meteora DBC? GET /api/v1/presets returns Chatple's tuned configurations as complete Meteora ConfigParameters — fair launch, stream mode (10-minute anti-sniper) and fast graduation (30 SOL). The anti-sniper scheduler is solved to land on exactly 1.00%, not the SDK's 1.0093%. Spread one into createConfig with your own keys:

import BN from "bn.js";
import { DynamicBondingCurveClient } from "@meteora-ag/dynamic-bonding-curve-sdk";

const { presets } = await (await fetch("https://chatple.com/api/v1/presets")).json();
const stream = presets.find((p) => p.name === "stream").configParameters;
// numeric fields arrive as strings: revive them as BN where the SDK expects BN
const params = JSON.parse(JSON.stringify(stream), (k, v) => (typeof v === "string" && /^\d+$/.test(v) ? new BN(v) : v));

const client = new DynamicBondingCurveClient(connection, "confirmed");
const tx = await client.partner.createConfig({
  ...params,
  config: configKeypair.publicKey,
  feeClaimer: yourTreasury,
  leftoverReceiver: yourTreasury,
  quoteMint: NATIVE_MINT,
  payer: wallet.publicKey,
});

Recognising Chatple pools on chain

Chatple coins are Meteora Dynamic Bonding Curve pools created with one of our config keys, then migrated to Meteora DAMM v2 with the LP permanently locked. Every launch transaction is co-signed by the Chatple launchpad signer and carries the memo chatple:launch; mints usually end in …CHAT.

Machine-readable: GET /api/v1/launchpad.