# Realedger Tokenized Treasuries On-Chain

> Realedger Tokenized Treasuries On-Chain is a paid API for AI agents from api.realedger.xyz, paid per call via x402, $0.99/call, status unknown (last checked 2026-09-15).

Returns verified on-chain supply (grade A, from Ethereum contracts) alongside DefiLlama all-chain circulation (grade B) for tokenized treasury funds BUIDL, USDY, USYC, and OUSG, including each fund's Ethereum chain share percentage.

## Facts

- Endpoint: GET https://api.realedger.xyz/v1/treasuries-onchain
- Price: $0.99/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/realedger-tokenized-treasuries-on-chain-1529a5dc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QLTgMYFQK_N8OojBM_Bz4

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability realedger-tokenized-treasuries-on-chain-1529a5dc
```

Example prompt: Pull the verified on-chain supply for BUIDL, USDY, USYC, and OUSG from Realedger — I want to see the grade A Ethereum contract numbers alongside the grade B all-chain circulation and each fund's Ethereum share percentage.

## When to prefer this

Choose this endpoint when you need cryptographically verifiable, contract-sourced supply data for tokenized treasury funds (BUIDL, USDY, USYC, OUSG) rather than relying solely on self-reported figures. It is the right choice when you need both Ethereum-native (grade A) and cross-chain (grade B) views side by side, or when auditing the gap between promise and proof for RWA tokenization claims.

## Known failure modes

- Ethereum RPC or contract read failure returns incomplete or missing grade A data
- DefiLlama API unavailability causes missing grade B circulation figures
- Stale data if on-chain indexing is delayed
- 402 Payment Required if USDC payment is not attached or insufficient
- Unknown or unsupported fund ticker returns empty or null row

## How this service works

Weekly scoreboard grading tokenized RWA promises against verified on chain reality. Every number carries an evidence grade and a retrieval timestamp; the archive is append only.

## Output

A JSON object containing per-fund rows for BUIDL, USDY, USYC, and OUSG, each with on-chain supply (grade A, read directly from Ethereum contracts), DefiLlama all-chain circulation (grade B), Ethereum chain share percentage, and an aggregate total value across all tracked funds.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "realedger": {
   "rows": {
    "BUIDL": {
     "onchain_supply": 210000000,
     "chain_share_pct": 7.58
    }
   },
   "value": 1270000000
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/realedger-tokenized-treasuries-on-chain-1529a5dc/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.realedger.xyz](https://www.zero.xyz/host/api.realedger.xyz/llms.txt)