Rate limit on https://blockstream.info/api - 429 (Too Many Requests)

Hello,

We've been using the APIs available on https://blockstream.info/api for several months for monitoring balances on specific BTC addresses. We perform only a small number of requests per hour, but recently we've been getting `429` (Too Many Requests) errors consistently, even for a single request, thus I believe our IP might have been blocked.

Is there someone I can contact to get this sorted?

Moreover, what are the limits on requests per second/minute/hour, so that we can throttle our service accordingly, so this doesn't happen again?

Cheers

No repository file, test, or implementation entry point is identified; start with the linked Blockstream API documentation and the existing issue discussion. Determine whether the project controls the rate limit and what maintainer response or documented limits would resolve the report.

Written by the indexing model from the issue text.