RPC method

trace_block on Taiko

Supported on SwiftNodes

Measured 2026-10-11 by our weekly probe, which calls trace_block through the same Taiko endpoint customers use.

What trace_block does

Returns Parity-style traces for every transaction in a block: internal calls, contract creations and value transfers. Indexers use it to reconstruct internal ETH movements that receipts do not show.

trace_block on Taiko: what we measured

  • Default Taiko routing keeps state for roughly the last 1,000,000 blocks (about 23.1 days of Taiko history). Tracing a block older than that needs historical state. Add &archive=1 to send the request to archive upstreams (paid plans).

Example request

curl -s https://rpc.swiftnodes.io/rpc/taiko?key=YOUR_API_KEY \
  -X POST -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"trace_block","params":["latest"]}'
import { createPublicClient, http } from "viem";

const client = createPublicClient({ transport: http("https://rpc.swiftnodes.io/rpc/taiko?key=YOUR_API_KEY") });

// Any JSON-RPC method, typed loosely: trace_block on Taiko
const result = await client.request({
  method: "trace_block",
  params: ["latest"],
});

Other methods on Taiko

trace_block on other chains

Support differs by chain; the full measured table is on the trace_block reference.

Frequently asked questions

Does Taiko support trace_block?

Yes. trace_block answered correctly on the SwiftNodes Taiko endpoint in our weekly method probe (2026-10-11), which sends real requests through the customer path.

Are there limits on trace_block on Taiko?

Default Taiko routing keeps state for roughly the last 1,000,000 blocks (about 23.1 days of Taiko history). Tracing a block older than that needs historical state. Add &archive=1 to send the request to archive upstreams (paid plans).

Taiko endpoints, live block height and WebSocket status are on the Taiko RPC page.

One key covers every chain we serve, and SwiftNodes has a free tier.