Chains

stored on the server · never sent to the browser

Loading…

Add a chain

any EVM network · paste its RPC URL

What an endpoint must support

Batch JSON-RPC: Required. Four calls are sent as one array; an endpoint that rejects batches will not work at all.
debug_traceTransaction: For the call tree and per-branch gas. Without it, balance changes and events are still read from the receipt log.
Archive access: Old transactions need old state. A non-archive node keeps only the last ~128 blocks.

A URL may contain an API key, so a stored URL is never sent back to the browser — the field above shows dots and typing replaces it. Error messages name only the host.