IBGE vs Postcodes.io
Same instrument, two spec sheets — measured, not claimed.
IBGE vs Postcodes.io: common questions
Which is more reliable, IBGE or Postcodes.io?
Both are neck-and-neck — IBGE and Postcodes.io each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.
Which is faster, IBGE or Postcodes.io?
Postcodes.io has the lower median latency in our checks — IBGE responds in 1353 ms versus Postcodes.io at 33 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 IBGE and Postcodes.io need an API key?
Neither needs a paid key — IBGE is callable with no signup, and Postcodes.io is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call IBGE and Postcodes.io from the browser?
Yes — both IBGE and Postcodes.io send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.
Are IBGE and Postcodes.io free for commercial use?
IBGE has unclear commercial terms, and Postcodes.io 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.