In the growing onchain social ecosystem, users constantly interact with new people, projects, and bots — but have little idea who they’re engaging with.
Determining who to trust on networks like Farcaster or Base Apps is difficult because profile data, social graph signals, and engagement history are fragmented across multiple APIs and platforms.

Verifying whether an account is genuine, a spam bot, or a respected builder often requires manual research: checking follower counts, reviewing interactions, analyzing casting behavior, and correlating onchain data. This process is slow, complex, and inaccessible for most users — especially newcomers joining the Base ecosystem.

Having built over 40+ Farcaster miniapps, used more than 13 million times by 87K+ unique users, I’ve seen firsthand how much users value clear, digestible insights about the people they interact with. They want instant clarity — not complicated analytics dashboards.

WhoIsWho (aka TrustCrust) solves this by becoming the “onchain reality filter” for Farcaster and Base users. It aggregates key identity, reputation, and behavioral signals from multiple sources to show, at a glance:

•	Whether a user is trustworthy
•	Their interests and engagement across Base/Farcaster
•	Historical signals of authenticity or spam behavior

This gives every user — from newcomers to seasoned builders — a way to see trust instantly in a decentralized world where identity proof is fragmented and verification must be earned, not given.

Link to the app:
https://whoiswho.altumbase.com/

Direct link to open it in farcaster: https://farcaster.xyz/miniapps/KSABGHhJG_XA/whoiswho

Started late, as was really busy with other stuff. So this was built in 48 hours with not much sleep today. It was built using Scaffold-ETH2 + MiniApp Extension I am actively develoiping now for Devconnect presentation (https://github.com/NikolaiL/miniapp-extension) - will show it to devs to help them build apps faster.

Another issue was integrating various APIs, as some of them do not behave as promised.

My next big challenge will be creating Farcaster Shuttle DB sync for easy data access. I already did it last year and results were amazing. I did use additional layer on top of Postgres, and was able to process data with tremendous speeds on $35/month hardware. Here is a screenshot from back then:

As you can see this frame processed apprx. 2.4 Million followers data and charted it in about 2 seconds:

Unfortunately the server died and I had no time to make it work again, but I want to do it now.

Once Shuttle DB sync is active I will be able to do some amazing analytics, including activity charts like this (also did a frame for it last year):

https://github.com/NikolaiL/whoiswho

https://whoiswho.altumbase.com

WhoIsWho transforms fragmented reputation signals into a clear, instant “trust layer” for the Base and Farcaster ecosystems.

In a space where users meet thousands of new accounts—humans, bots, and builders alike—it removes guesswork by aggregating trust, activity, and reputation data from multiple sources and displaying it in a single, easy‑to‑read profile.

Unlike generic analytics dashboards or spam reports, WhoIsWho makes identity intelligence visual, actionable, and decentralized.

Users can instantly see which accounts are authentic, how they engage, and whether their network connections appear organic or suspicious—directly inside a Farcaster miniapp or Base application.

By turning raw data into intuitive trust insights, WhoIsWho enables:

•	Instant user verification without technical knowledge.
•	Safer onchain interactions for individuals, brands, and communities.
•	Stronger network discovery, rewarding verified builders and filtering out spam.

In short, WhoIsWho provides the “trust-at-a-glance” experience that onchain social platforms have been missing.

WhoIsWho is built for onchain social users, creators, and developers on Base and Farcaster — people who interact with dozens of new accounts daily but have no easy way to gauge trust or authenticity.

These fall into three key groups:

1. Everyday Base & Farcaster Users
Newcomers joining the ecosystem who want quick ways to tell if someone is real, spammy, or a known builder before following or transacting. This group includes 200,000+ Farcaster users now active across Base-powered social apps.

2. Creators, Builders, and Projects
Users who care about their public reputation and need a transparent, verifiable way to prove authenticity and community trust. WhoIsWho helps them showcase their real impact, not just follower counts.

3. Developers and Platform Integrators
Miniapp creators, bots, and dashboards who want to plug into the WhoIsWho API or Frame to enrich their own user experiences with trust data — bringing instant credibility and safety to interactions.

In short:

WhoIsWho targets the growing population of social builders and users on Base who crave a clear, data-driven way to know who they’re talking to — empowering a safer, more transparent onchain social ecosystem.

Several dashboards and analytics tools provide partial insights into Farcaster and onchain activity — such as Talent Protocol, Neynar API data, DeBank, that explore reputation and wallet analytics.

These products focus on raw data, growth metrics, or network-level analytics — follower counts, engagement trends, or transaction summaries — but they fail to contextualize who a person truly is or whether they’re trustworthy.

WhoIsWho is different because it focuses on personal trust and identity context, not generic metrics.

Where others deliver charts, WhoIsWho delivers meaning — combining profile, social graph, behavioral patterns, and activity signals from Base and Farcaster to create a real‑time trust layer for users.

Instead of showing “how many followers” someone has, it shows what kind of follower base, how organic the engagement is, and whether activity indicates authentic participation or spam behavior.

In short:
• Competitors show data → WhoIsWho tells you what it means.
• Competitors measure activity → WhoIsWho measures trust.
• Competitors are dashboards → WhoIsWho is an “identity lens” embedded right inside the Base social ecosystem.

This behavioral + social + onchain fusion gives users a clear trust score at a glance, something no other analytics tool in the Farcaster or Base ecosystem currently provides.