GreyNoise Community API
APIFree IP reputation API for security threat intelligence
Overview
The GreyNoise Community API enables querying IP addresses against its global dataset to retrieve actionable security context. Key endpoints include GET /v3/community/ip, returning JSON responses with details like IP classification (scanner, botnet, benign), last seen timestamp, associated tags (e.g., 'ssh_scanner'), and network metadata. Use cases include enriching SIEM alerts to filter false positives, validating suspicious IPs in incident response, and integrating threat intelligence into security tools. It supports RESTful requests and requires no authentication for community-tier access.
Example Integration (JavaScript)
fetch('https://docs.greynoise.io/reference/get_v3-community-ip')
.then(res => res.json())
.then(data => console.log(data))
.catch(err => console.error(err)); Key Features
- RESTful interface
- JSON response format
- No authentication required
- IP classification (scanner/botnet/benign)
- Real-time IP context data
Frequently Asked Questions
? Is the GreyNoise Community API free to use?
Yes, the community tier of the GreyNoise API is completely free and accessible without a paid subscription.
? Does the API require an API key?
No, the community endpoints (like the /v3/community/ip endpoint) do not require an API key for access.
? What is the response format of the API?
The API returns responses in JSON format, including details such as IP classification, last seen time, tags, and network metadata.
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Tool Info
Pros
- ⊕ Free community access
- ⊕ Reduces security alert false positives
- ⊕ Easy integration with SIEM/tools
- ⊕ Rich IP metadata
Cons
- ⊖ Limited data vs paid tiers
- ⊖ Rate-limited community usage
- ⊖ No SLA for uptime
- ⊖ Only IP queries (no domains/URLs in free tier)