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Frequently Asked Questions

This page answers the most common questions about ENSRainbow.

Can I use ENSRainbow without running my own server?

Section titled “Can I use ENSRainbow without running my own server?”

Yes. NameHash Labs operates a free instance at https://api.ensrainbow.io.

New label-set versions are generated manually for now:

  • subgraph: data from the ENS Subgraph rainbow tables, no plans to update
  • discovery-a: may be updated periodically as new labels are dynamically discovered
  • ens-test-env: Static test dataset, no plans to update
  • searchlight: Enhanced discovery dataset (coming soon)

To stay informed about new versions, monitor the Available Label Sets documentation page.

Currently, the convert command is the only way to create new .ensrainbow files from scratch. This command converts PostgreSQL rainbow table dumps (.sql.gz format) into the binary protobuf format that ENSRainbow uses.

To create a custom .ensrainbow file:

  1. Prepare your data as a PostgreSQL dump file (.sql.gz) with ENS labels and labelhashes
  2. Run the convert command:
    Terminal window
    pnpm run convert --input-file your_data.sql.gz --output-file custom.ensrainbow
  3. Specify the label set details using --label-set-id and --label-set-version flags

Note: You can download existing .ensrainbow files using the download scripts, but for creating entirely new files with your own data, the convert command is currently the only option available.

See the CLI Reference for detailed command usage.

No. It returns labels exactly as stored. Your client should perform ENS Normalisation if required.

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