Etherscan API key

Settings field: ETHERSCAN_API_KEY · Expected format: Alphanumeric key from Etherscan

Paste the key in Settings → BYOK, click Save keys, and wait for Connected (or Saved for keys that are not probed from the browser).

Used for

Etherscan V2: whale transfers, EVM tracker balances and movements, and L2 coverage on your plan tier.

Pricing

Etherscan API V2 covers 50+ EVM chains with one key. Free tier works for light use; paid API Pro tiers raise limits and unlock Pro endpoints.

• Free: $0 (3 calls/sec, up to 100,000 calls/day)
• Lite: $49/month (5 calls/sec, 100,000 calls/day)
• Standard: $199/month (10 calls/sec, 200,000 calls/day, API Pro endpoints)
• Advanced: $299/month (20 calls/sec, 500,000 calls/day)
• Professional: $399/month (30 calls/sec, 1,000,000 calls/day)
• Pro Plus: $899/month (30 calls/sec, 1,500,000 calls/day, address metadata)
• Enterprise: Custom (Dedicated plan, contact sales)

Official pricing: https://etherscan.io/apis

Quarterly and yearly billing discounts are available on the Etherscan site.

Sign up

https://etherscan.io/myapikey

How to get the key

1. Create an Etherscan account and open My API Keys.
2. Add a new API key and copy it.
3. Paste it into Settings → BYOK and save.