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ListLoco API vs ParlayAPI

Same instrument, two spec sheets — measured, not claimed.

APIListLoco APIHEALTHY100ParlayAPIREACHABLE88
Uptime · 30d
Uptime · 90d100%87.5%
Uptime · 30d100%87.5%
P50 · ms152211
P95 · ms3101536
AuthnoneapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified
Free tierFree — limits not published
Rate limitUnpublished
In directory since2026-07-052026-10-04
operationalpartialdownno data

ListLoco API vs ParlayAPI: common questions

Which is more reliable, ListLoco API or ParlayAPI?

On our scheduled checks, ListLoco API leads on measured uptime — ListLoco API at 100% versus ParlayAPI at 87.5% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Which is faster, ListLoco API or ParlayAPI?

ListLoco API has the lower median latency in our checks — ListLoco API responds in 152 ms versus ParlayAPI at 211 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do ListLoco API and ParlayAPI need an API key?

ListLoco API needs no key, while ParlayAPI requires a free API key. If you want to start calling without signup, reach for ListLoco API first.

Can I call ListLoco API and ParlayAPI from the browser?

Neither sends browser-friendly CORS headers reliably, so call ListLoco API and ParlayAPI from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are ListLoco API and ParlayAPI free for commercial use?

ListLoco API has unclear commercial terms, and ParlayAPI has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.