# Realedger Stablecoin Reserve Transparency

> Realedger Stablecoin Reserve Transparency is a paid API for AI agents from api.realedger.xyz, paid per call via x402, $0.99/call, status unknown (last checked 2026-09-14).

Returns a three-tier reserve comparison for major stablecoins (USDC, USDT, DAI): on-chain Base supply (grade A), total cross-chain circulation from DefiLlama (grade B), and issuer-attested reserves (grade C), plus Base share and backing ratio.

## Facts

- Endpoint: GET https://api.realedger.xyz/v1/reserves
- Price: $0.99/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/realedger-stablecoin-reserve-transparency-379842f6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_K4OCSRBFp_9798w2yp6yf

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-stablecoin-reserve-transparency-379842f6
```

Example prompt: Pull the latest reserve proof vs promise breakdown for USDC, USDT, and DAI — I want to see on-chain supply on Base, total circulation across all chains, issuer-attested reserves, and backing ratios for each.

## When to prefer this

Choose this endpoint when you need a structured, three-tier reserve transparency comparison for major stablecoins (USDC, USDT, DAI) specifically on Base, with a clear distinction between on-chain proof, cross-chain circulation, and issuer claims. Prefer this over generic DeFi dashboards when you need a standardized grading framework (A/B/C) and explicit backing ratios, or when monitoring whether stablecoin issuers' claims match actual on-chain and cross-chain reality.

## Known failure modes

- Issuer attestation data unavailable — grade C field returned as blank
- DefiLlama data temporarily unavailable — grade B field may be stale or missing
- On-chain Base RPC issue — grade A field may be delayed
- Payment not fulfilled via x402 — 402 Payment Required response
- Rate limit exceeded — 429 response
- Unsupported stablecoin requested — empty or error response

## 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

Returns a table of reserve tiers per stablecoin (USDC, USDT, DAI): grade A (on-chain supply on Base), grade B (total cross-chain circulation from DefiLlama), grade C (issuer-attested reserves), the stablecoin's Base chain share as a percentage of total supply, and the backing ratio. Missing attestations are returned as blanks rather than zeroes.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "realedger": {
   "rows": {
    "USDC": {
     "on_chain_base": 4260000000,
     "total_circulating": 74000000000,
     "base_share_of_total_pct": 5.8
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/realedger-stablecoin-reserve-transparency-379842f6/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)