theRPC
Geyser docs

Geyser · Quickstart

Connect in one file

Connect to geyser.therpc.io:443 with your TheRPC API key as the gRPC x-token metadata header. Drop-in compatible — if you already run LaserStream or Dragon's Mouth, change one URL.

1 — Install the client

npm install @triton-one/yellowstone-grpc

2 — Subscribe to account updates

import Client, {
  CommitmentLevel,
  SubscribeRequest,
} from "@triton-one/yellowstone-grpc";
 
const client = new Client(
  "https://geyser.therpc.io:443",
  "<YOUR_API_KEY>",
  undefined
);
 
const request: SubscribeRequest = {
  accounts: {
    raydium_pools: {
      account: [],
      owner: ["675kPX9MHTjS2zt1qfr1NYHuzeLXfQM9H24wFSUt1Mp8"],
      filters: [],
      nonemptyTxnSignature: undefined,
    },
  },
  slots: {},
  transactions: {},
  transactionsStatus: {},
  blocks: {},
  blocksMeta: {},
  entry: {},
  accountsDataSlice: [],
  commitment: CommitmentLevel.PROCESSED,
};
 
const stream = await client.subscribe();
await new Promise<void>((resolve, reject) => {
  stream.write(request, (err: Error | null) => {
    if (err) reject(err);
    else resolve();
  });
});
 
stream.on("data", (update) => {
  if (update.account) {
    const acc = update.account.account;
    console.log(
      "slot:", update.account.slot,
      "pubkey:", Buffer.from(acc.pubkey).toString("base64"),
      "lamports:", acc.lamports,
      "data_len:", acc.data.length
    );
  }
});
 
stream.on("error", (err) => console.error("stream error:", err));
stream.on("end", () => console.log("stream ended"));

Replace <YOUR_API_KEY> with the key from your TheRPC dashboard. The x-token header is passed automatically by the Yellowstone client.