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metabigor
metabigor collects open source intelligence about internet assets without requiring API keys for its workflow.

About metabigor
metabigor is an open source command-line tool for collecting open source intelligence about a target's internet infrastructure. It can find network ranges, certificate-linked subdomains, related domains, exposed ports, CDN and WAF providers, and code leaks, and it draws on free sources that do not require registering for an API key.
Each command accepts targets as arguments, from a file, or from standard input, and supports text, flat, JSON, and CSV output. Results go to standard output and logs go to standard error, so commands can be chained in pipelines and scripts. The net command searches a bundled offline database by default, and the --live option queries live sources instead. Results depend on third-party services such as crt.sh, Shodan InternetDB, grep.app, and web archives.
Key features
- Finds IP ranges (CIDRs) from an ASN, organization, domain, or IP
- Discovers subdomains from certificate transparency logs via crt.sh
- Lists open ports, hostnames, and CVEs for IPs via Shodan InternetDB
- Searches public GitHub repositories for secrets and subdomains via grep.app
- Groups IP addresses by ASN to map infrastructure
- Separates CDN and WAF-protected addresses from candidate origin servers
- Its workflow does not require API keys, and Shodan InternetDB is listed as free with no key
- Commands can be piped into each other and output can be formatted as text, flat, JSON, or CSV
- Can be installed with npm or Homebrew using prebuilt binaries, so no Go toolchain is needed
- The net command uses a bundled offline database by default, so live results require the --live option
- Depends on third-party sources such as crt.sh, Shodan InternetDB, grep.app, and web archives
metabigor at a glance
- Website
- github.com/j3ssie/metabigor
- Category
- Development › Domain, IP & DNS Lookup
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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metabigor FAQ
Does metabigor require API keys?
Can metabigor be installed without Go?
How does the net command get its data?
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