WhatsMyName vs Opsis OSINT
WhatsMyName
WhatsMyName is a community-maintained dataset of more than 700 websites and the rules for checking whether a username is registered on each, published under a Creative Commons BY-SA 4.0 licence. Other OSINT and digital-footprint tools build on it, and whatsmyname.app is a free browser-based tool built directly on the dataset that needs no installation. The project has been on GitHub since 2015.
Pros
- Free to use in the browser with no installation
- Open dataset other tools can reuse
- Maintained by the community since 2015
Pricing: Free. Dataset licensed CC BY-SA 4.0.
Opsis OSINT
Opsis OSINT is a hosted search platform for open-source intelligence. It takes a username, email address or domain, checks it against public sources in real time and returns the matching accounts with the profile data each source exposes, such as names, avatars, bios, follower counts and join dates. Opsis says it now runs about 1,100 modules: around 700 username platform lookups and 400 email enrichment modules, plus domain WHOIS and DNS tools. Its website still gives the earlier figure of 700+. A result only counts as a match when the source shows real profile signals, such as an avatar, display name or structured data. An HTTP 200 response on its own does not count. Premium searches, on the Basic plan and above, add 27 username platforms that need browser automation, including Facebook, Etsy and Crunchbase. The Pro plan adds a versioned REST API with synchronous, polling and streamed modes and a published OpenAPI schema. Opsis says it discards search results and keeps no database of people, and it logs each query with the account, timestamp and IP address for up to 90 days. The operator is Opsis LLC, a Minnesota limited liability company confirmed as active in the Minnesota Secretary of State registry. Its acceptable use policy permits licensed investigation, corporate due diligence, threat intelligence, law enforcement, journalism and academic research, and prohibits stalking, harassment, doxxing and FCRA, GLBA or DPPA-regulated screening.
Pros
- The operator is verifiable in a government registry: the Minnesota Secretary of State confirms Opsis LLC as active and in good standing, file number 1643670600029
- The acceptable use policy is specific and restrictive, expressly prohibiting stalking, harassment, doxxing, and employment, tenant and credit screening
- Accountability is built in: every search is logged with account identifier, query, timestamp and IP address, and kept for up to 90 days
- Opsis says a result needs real profile signals to count as a match, which targets the usual false-positive problem in username enumeration
- The API is well documented for automation: an OpenAPI schema, public health and capabilities endpoints, streamed results, and published rate limits and error codes
- People can ask not to be searchable: a suppression request for their own email or username is reviewed by a person within 30 days
Pricing: Starter $14.99/month (25 searches); Basic $24.99/month (75 searches, adds Premium deep search); Pro $49.99/month (150 searches, adds API access). Credits reset monthly and do not roll over. API calls use separately bought credits, from $20 for 50 down to $0.25 each at 1,000; a Premium search costs 2 credits.