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Free tier, no card. We email a link to confirm the address, then issue your key.

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Coverage is narrow, and every figure is an estimate. Coverage is 115 residential tariffs across 57 utilities, out of roughly three thousand electric utilities in the United States. Estimates exclude medical baseline, FERA, annual true-up and non-bypassable charges assessed on gross consumption. Responses carry warnings and confidence values; sections 5 and 6 of the terms ask you to read them — and the terms are what you are accepting above.

Already have a key? Check usage with GET /usage. Keys are stored hashed and shown once, so a lost key cannot be looked up — request a new one and the old is revoked.