Behavioral signal · Robinhood Chain
Get paid for the signal your trading already creates.
Connect your Robinhood account once — read-only. Sonr strips your identity, pools your behavior into anonymous cohorts, and AI agents pay per query to read the aggregate. You keep 80%.
Read-only connection · No execution access · Disconnect anytime
Query paid · x402
Net positioning · NVDA
Why “Sonr”
Sonar senses what moves beneath the surface by listening to the whole field — never any single object.
That’s the product. Sonr reads the aggregate current of retail trading and sells that signal, while no individual trader is ever visible, identifiable, or queryable. The metaphor is the privacy guarantee:
You hear the crowd, not the person.
The premise
The richest behavioral data in retail finance isn’t on-chain. It’s in brokerage accounts.
What people buy, when, in what size, how they react to moves, where options flow concentrates — Robinhood alone represents one of the largest retail behavioral datasets in the world. And today, the users who generate it capture none of its value.
Sonr flips that. Connect once, close the app, get paid as your behavior contributes to queries. Less a data broker — more a yield primitive on your own activity.
80%
of query revenue goes to users
k ≥ 50
minimum cohort size, always
$0.03–0.06
typical price per query, in USDG
< 1¢
settlement cost on Robinhood Chain
How it works
Connect once.
Close the app.
Get paid.
Five stages between your everyday trading and USDG accruing to your wallet. You do the first one; the protocol does the rest.
Connect
Link your brokerage through a read-only aggregation layer. Read scope only — no trade execution, no withdrawal access, ever. This is the trust-critical step, and it's engineered to feel that way.
Fingerprint
Raw activity never leaves the ingestion boundary in identifiable form. Trades decompose into behavioral features — instrument class, direction, relative size, timing, holding duration — hashed into an anonymized fingerprint. Nothing reversible to you.
Aggregate
Fingerprints pool into cohorts. A single user is never queryable; buyers only see signal computed across a minimum cohort size (k ≥ 50). The privacy guarantee is the product — aggregate signal beats any one trader anyway.
Query
AI agents, quant systems, and research platforms hit the API and pay per query via x402 in USDG. Net positioning in a ticker, options-flow shifts, sentiment velocity, reaction asymmetry after a gap — each answered query is a metered event.
Settle
Revenue splits 80% to the users whose fingerprints contributed, 20% to the protocol. Payouts accrue in USDG on Robinhood Chain — claimable or streamable to your wallet.
Every query settles
100% = one query fee
Attributed per contributing fingerprint, settled in USDG.
Privacy stance
This is the whole product.
An individual user’s data is never sold, never queryable, never reconstructable. Buyers cannot ask “what did trader X do.” Only “what is the cohort doing” — and only above a minimum cohort size.
Read-only, structurally
The protocol can never move your money or place a trade. The connection scope doesn't include it.
No PII crosses the boundary
Identity is stripped before storage. No name, no account number, no dollar positions — nothing reversible.
Aggregate answers only
Buyers can't ask what you did. They can only ask what the cohort is doing, above a k ≥ 50 floor.
Leave anytime
Disconnect and stop contributing in one click. Your fingerprints stop entering new cohorts immediately.
Open methodology
How fingerprints are built and what's queryable is public. Audit the pipeline, not our promises.
“If any of these can’t be honored technically, the product doesn’t ship until they can.”
The reputational bright line
Why now
Three things converged. The pitch is morally clean.
The broker already sells you
Retail brokerage data has always been valuable — but only ever monetized by the broker, opaquely, through payment-for-order-flow. The user is the product and sees nothing.
Software buys edge now
Autonomous trading agents pay for signal programmatically. x402 gives them a rail to pay per query in stablecoins — no accounts, no invoices, no sales cycle.
Micropayments finally clear
USDG-native settlement on Robinhood Chain makes per-query payments economically viable at fractions of a cent.
The buyer side
Retail flow signal, priced per query. No sales cycle.
Retail sentiment and flow have measurable predictive value — and there’s no clean programmatic source for it today. The buyers who want it are increasingly software, and software pays via x402.
Explore the query API$ curl https://api.sonr.finance/v1/signal \
-d '{ "metric": "net_positioning",
"ticker": "NVDA",
"window": "4h" }'
// 402 Payment Required → agent pays 0.048 USDG
{
"cohort_size": 412,
"net_positioning": +0.34,
"confidence": 0.87,
"k_anonymity": "enforced (k >= 50)",
"individuals_visible": 0
}Architecture
Boring where it should be. Novel where it counts.
| Layer | Choice | Notes |
|---|---|---|
| Settlement chain | Robinhood Chain — Arbitrum Orbit L2 | USDG native, sub-cent fees |
| Payment rail | x402 | Per-query micropayments, agent-native, no accounts |
| Stablecoin | USDG | Native gas + settlement asset |
| Data ingestion | Read-only brokerage aggregation | No execution or withdrawal scope, ever |
| Anonymization | Feature extraction → hashed fingerprints | Non-reversible; PII stripped at the boundary |
| Privacy guarantee | Cohort k-anonymity + aggregate-only queries | No individual is ever queryable |
| Revenue split | 80% users / 20% protocol | Attributed per contributing fingerprint |
Token
No token required. That’s deliberate.
Users earn USDG directly. Buyers pay USDG. The core mechanic needs nothing else — a token, if added, should have a real sink rather than existing to be launched.
Plausible roles: staking for higher-resolution or lower-latency query tiers, buyback-and-burn funded by the 20% protocol take, holder rebates on the protocol fee.
The commitment: ship the USDG-native product first, prove query revenue is real, and only then introduce a token — once there’s fee flow to back it.
The broker already sells your behavior.
This time, you get paid.
And you can’t be individually identified. Connect once — the protocol does the rest.