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By custody-address
Group: User APIs
Use this when you need: By custody-address.

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Usage

import { NeynarAPIClient, Configuration } from "@neynar/nodejs-sdk";

const client = new NeynarAPIClient(
  new Configuration({ apiKey: "YOUR_NEYNAR_API_KEY" })
);

const res = await client.lookupUserByCustodyAddress({
  custodyAddress: "example", // Custody Address associated with mnemonic
});
console.log(res);

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Parameters

ParameterTypeRequiredDescription
custodyAddressstring✅Custody Address associated with mnemonic

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Response

Returns a RequestArgs object.

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Error Handling

try {
  const res = await client.lookupUserByCustodyAddress({
    custodyAddress: "example"
  });
  // use res
} catch (err) {
  // Axios/HTTP errors, invalid params, auth issues, etc.
  console.error(err);
}

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Tips

  • Provide a viewerFid when supported to respect mutes/blocks and include viewer_context.
  • Keep requests scoped (e.g., use limit) to improve latency.
  • Cache results where sensible.