Search merchant spend data
Search Laso’s merchant database for confirmed spend data for a given card type. Returns whether the card was accepted, not accepted, or unknown at each merchant.
Use card_type to search by the USA prepaid card (Non-Reloadable U.S., the default) or the international prepaid card (Non-Reloadable International). USA searches exclude merchants with non-US country-code TLDs; international searches do not.
Important: This database only contains merchants where Laso users have previously attempted a transaction. A merchant not being listed, or being listed as unknown, does NOT mean the card won’t work there — it just means it hasn’t been tried yet. If a merchant is listed as accepted, you can confidently use the card there. If listed as not_accepted, the card will fail at that merchant.
Requires a Bearer token from /auth or /get-card.
Documentation Index
Fetch the complete documentation index at: https://agents.laso.finance/llms.txt
Use this file to discover all available pages before exploring further.
Authorizations
ID token from /auth or /get-card
Query Parameters
Search query — the merchant name to search for (e.g. "amazon", "netflix")
Which card type to search acceptance for. Defaults to Non-Reloadable U.S. if omitted (preserves existing client behavior). Pass Non-Reloadable International to search for international prepaid card acceptance.
Non-Reloadable U.S., Non-Reloadable International Response
Merchant search results
The search query that was used
Number of merchants returned
The card type results are filtered for
"Non-Reloadable U.S."
Important caveat about the data — this database only includes merchants where users have previously attempted transactions