Is there a service or API to decode MD5 hashes or lookup?

Question

Hashing

There is a base of about 1000 MD5 hashes, you need to find matches, is there any free service to do it all at once, not one at a time.

Answer 1

I don’t know a ready-made service, but I can write a simple script that will run hashes one by one through some online service with a larger database.
There is a simple api here, but you need to pay money
www.md5online.org/md5-api.html

Answer 2

Google Rainbow Tables + MD5 Brute Force on GPU