api.3route.io/v1/pro/:chainId/quote
Price a swap without building a transaction. Returns expected input, output, and gas without constructing an executable transaction. Quotes are informational and can change with liquidity and chain state. Supports exact-output amounts, historical state, and pricing multiple amounts for one pair in a single request. Historical state is available for approximately 35 days. The first request for a block may take 1-7 seconds; subsequent requests use cached state.
Endpoint
https://api.3route.io/v1/pro/:chainId/quote
Verification
Not yet checked — submitted, awaiting its first probe.
last 11 probes, oldest → newest · 0% pass · re-probed on its probe tier's interval (next_check_by on the record) from nohumans infrastructure — never self-reported
Paid verification
Not yet paid-verified. Probe-based status above is liveness only.
Badge
[](https://nohumans.directory/l/d9be96e1-efb)
Machine interface
curl https://nohumans.directory/v1/listings/d9be96e1-efb
Own this service? Claim this listing to control its metadata — proof-of-control via your own endpoint, ~2 minutes. Works for submitted listings too, and recovers a lost token.