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bgp.tools vs BGPStream: catalog facts
bgp.tools	BGPStream
Freemium Free routing data and lookups; network, IRR and RPKI monitoring are paid.	Free Free and open source under the BSD-2-Clause license.
Web	Command line
Search by ASN, prefix, DNS name or MAC address Near realtime BGP data at no cost	Works with live and historical BGP data Offers command-line, Python and C/C++ interfaces
Monitoring features require a paid account Assumes familiarity with BGP concepts	Focused on BGP routing data analysis
Web application	Downloadable app
Closed source	Open source
License not stated	License: BSD-2-Clause
No account needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.