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Compass Tokenized Treasury Yield Comparator
x402
Compass Tokenized Treasury Yield Comparator is a paid API for AI agents from api.402rates.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-14).
Fetches and compares realised 30-day yields of major tokenized treasury funds (BUIDL, BENJI, OUSG, USDY, USTB, USYC, VBILL, mTBILL, Spiko, OpenEden) computed under the Open Treasury Basis specification from on-chain NAV/price series
Price / call$0.03
Success—
StatusUnknown
How this service works
Realised 30-day yields for 13 tokenized treasury funds: BUIDL, BENJI, OUSG, USDY, USTB, USYC, VBILL, mTBILL, TBILL, cUSDO, EUTBL, USTBL and UKTBL. Measured rows use NAV, price or verified passive-holder balance series under the published Open Treasury Yield Basis. Each carries its observations, sources and dates, plus an issuer figure and difference where available. Quoted and unavailable rows stay explicit; free coverage names every gap.
Output
Returns a list of tokenized treasury instruments, each with: independently computed 30-day realised yield (Open Treasury Basis methodology), the issuer's own reported yield for comparison, the NAV or price series used, computation window details, and data source disclosures — enabling full replication of the calculation.
Example use cases
Yield hunt across RWA treasury funds
“Which tokenized treasury fund is paying the best 30-day realised yield right now? Pull the numbers for all of them — BUIDL, BENJI, OUSG, USDY, USTB, USYC, VBILL, mTBILL, Spiko, and OpenEden — so I can compare.”
Independent yield verification for DeFi protocol
“We're integrating OUSG as collateral and need to verify their advertised yield independently. Can you pull the Compass-computed 30-day yield for OUSG alongside the issuer's own figure so we can cross-check?”
Euro vs USD tokenized treasury comparison
“I want to compare the 30-day yields on Spiko's EUTBL against USTB and UKTBL — can you fetch those from Compass so I can see the euro-denominated and dollar-denominated options side by side?”
Technical details
Endpoint
GEThttps://api.402rates.com/v1/rwa/yieldsWhen to prefer
Choose this endpoint when you need transparent, independently computed, replicable yield figures for tokenized treasury RWA funds rather than relying solely on issuer-reported numbers. It is the right choice when comparing multiple funds simultaneously, when audit trails and methodology disclosure matter (Open Treasury Basis), or when building DeFi protocols or dashboards that need on-chain NAV-sourced yield data. Prefer it over generic DeFi yield aggregators when the specific instruments are tokenized T-bill or treasury funds from the covered issuers.
Side effects
- Invalid ticker symbol in instruments param — returns error listing valid instrument IDs
- Network timeout if on-chain NAV data source is unavailable
- Payment failure (x402) if USDC balance is insufficient — returns 402 before data is served
- Stale data if fund has not published recent NAV updates — yield window may be incomplete
- Empty result if filtering to instruments parameter value that matches no tracked fund
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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