Token402 reads Robinhood Chain live and settles the two questions behind any trade: is the token priced fairly, and is there enough liquidity to fill the order.
Tokenized equities drift from the stocks they track, and the pools that trade them run thin. Token402 measures both straight from the chain and sells the answer to an AI agent for a fraction of a cent, paid in USDC through Proceeds. No account, no API key, nothing to sign up for.
Chainlink sets the token's price onchain. We put it next to a live market quote, so an agent sees the premium or discount instead of assuming the two match.
We read the token's Uniswap v4 pool to see how much is really there. Deep enough to fill at the quoted price, or thin enough that your own order moves it?
GET /stocks lists every symbol you can request and its Robinhood Chain contract address. Free.POST /price for the price comparison, POST /signal for liquidity and risk.{ "symbol": "TSLA" }. It goes in the POST body, not the URL, since a query string is dropped when the payment retries.200 comes back with the data and a payment-receipt header.Every ticker you can request, with its Robinhood Chain token address. Start here to see what /price and /signal accept.
Two prices for a ticker and the gap between them: the Chainlink oracle read on Robinhood Chain and a live market quote.
Uniswap v4 pool depth from the PoolManager, realized volatility from Chainlink round history, corporate-action detection from the Stock Token multiplier, and a Claude-written risk read tying them together.
| Symbol | Token contract address |
|---|---|
| … | fetching from /stocks |
x402 on Base settles through an EIP-3009 USDC authorization; MPP on Tempo settles a USDC transfer. Either way, point your client at the payment URL and POST the ticker.
# 1 · discover tickers (free) curl https://token402.vercel.app/stocks # 2 · buy a risk signal for TSLA over MPP (Tempo) tempo request -X POST --json '{"symbol":"TSLA"}' \ https://myproceeds.xyz/api/mpp/pay/SERVICE/signal
# pay with any x402 client (USDC on Base) x402 fetch -X POST --json '{"symbol":"NVDA"}' \ https://myproceeds.xyz/api/x402/pay/SERVICE/price
Drop any of these into Claude Code, Cursor, Codex, or your own harness. Each runs start to finish on its own: the agent finds the ticker, pays for the call, and reports back.
Compare the onchain and offchain price of NVDA on Robinhood Chain.
1. GET https://token402.vercel.app/stocks to confirm NVDA is supported.
2. Using my MPP (Tempo) or x402 (Base) wallet, pay this endpoint with
POST body {"symbol":"NVDA"} — it costs $0.001:
https://myproceeds.xyz/api/mpp/pay/SERVICE/price
(x402: https://myproceeds.xyz/api/x402/pay/SERVICE/price)
3. From the response, report sources.chainlink.price (the tokenized asset
onchain) vs sources.market.price (real-time traditional market), and the
priceDifference in absolute and percent terms.
4. Tell me whether the token trades at a premium or discount to the stock
market, and flag anything wider than 1% as a dislocation worth attention.
Assess whether tokenized TSLA on Robinhood Chain is liquid enough to trade.
1. Using my MPP (Tempo) or x402 (Base) wallet, pay this endpoint with
POST body {"symbol":"TSLA"} — it costs $0.25:
https://myproceeds.xyz/api/mpp/pay/SERVICE/signal
(x402: https://myproceeds.xyz/api/x402/pay/SERVICE/signal)
2. From the response, report:
- liquidity.depthUsd and liquidity.tier — the token-side TVL pooled in
Uniswap v4 on Robinhood Chain (the official DEX)
- volatility and sampleCount (realized vol from Chainlink round history)
- corporateAction.changed (split/dividend just adjusted the token?)
- score and narrative
3. Estimate the largest order that stays under ~5% of depthUsd, and give me
a clear read: can I trade my intended size without moving the price?
I'm considering buying tokenized GOOGL on Robinhood Chain. Run pre-trade
due diligence before I execute. Spend at most $0.30 total, paid with my
MPP (Tempo) or x402 (Base) wallet.
1. GET https://token402.vercel.app/stocks — confirm GOOGL is supported and
note its token contract address.
2. POST {"symbol":"GOOGL"} to https://myproceeds.xyz/api/mpp/pay/SERVICE/price
($0.001) — compare the onchain Chainlink price to the offchain market
price and report the premium/discount.
3. POST {"symbol":"GOOGL"} to https://myproceeds.xyz/api/mpp/pay/SERVICE/signal
($0.25) — summarize the risk score, realized volatility, corporate-action
status, and Uniswap v4 liquidity depth/tier.
4. Finish with a go / no-go recommendation naming the single biggest risk
(e.g. thin liquidity, price dislocation, or a fresh corporate action),
and keep every payment receipt for my records.
We wrote the intelligence. We wrote none of the payment code. /price and /signal are plain HTTP endpoints, and Proceeds sits in front of them: it answers the 402, settles the x402 or MPP payment, and pays out. That frees you to sell any data an agent will pay for and let Proceeds run the commerce underneath.
402, verifies the x402 or MPP payment, and passes the request through. The agent brings a wallet, not an account.Four pieces cover the whole arc of selling to machines:
payment-receipt.