5 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
Batch historical token prices by DefiLlama — prices for many coins at many timestamps in one call (coins is a JSON map).
Percentage helper. op: "of" (a% of b), "change" (% change a→b), "ratio" (a is what % of b).
Percentage and multiple change between two values — Genesis402 / UnyKorn Operator Network
Base transaction explained from the chain: success or reverted, block and time, from, to, ETH value, method selector, gas used and fee, contract created, and every ERC-20 transfer decoded with token symbol and amount. In...
Validate a percentage: tests the value against a well-known percentage pattern and returns valid true/false, the pattern used (so you can reuse it), and, when it fails, the first character position that breaks the rule....