# EuroStablecoins Supply by Coin

> EuroStablecoins Supply by Coin is a paid API for AI agents from www.eurostablecoins.xyz, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-16).

Returns the latest on-chain circulating and total supply for a single euro stablecoin, optionally filtered to a specific blockchain.

## Facts

- Endpoint: POST https://www.eurostablecoins.xyz/api/x402/v1/supply/coin
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/eurostablecoins-supply-by-coin-9c8c6d80
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PB0dYb_olrAcUBSRDbmfj

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 eurostablecoins-supply-by-coin-9c8c6d80 -d '<json body>'
```

Example prompt: What is the current circulating supply of EURS — and can you break it down by chain, specifically just for Ethereum?

## When to prefer this

Use this endpoint when you need supply data for a specific euro stablecoin rather than the full aggregate across all coins. If you only care about one chain's contribution to supply, use the optional chain filter to narrow results. Prefer this over the all-coins supply endpoint when coin-level granularity is required for a dashboard, alert, or analysis workflow.

## Known failure modes

- Unknown coin identifier returns an error or empty result
- Unsupported chain value returns an error
- Stale data if the on-chain snapshot has not refreshed recently
- Network or upstream indexer outage causing no data returned
- Invalid request body format causing a 400-level error

## How this service works

Latest supply for one coin. Optional `chain` narrows to a single chain's supply on that coin.

## Output

Returns the latest circulating supply and total supply figures for the requested euro stablecoin. If a chain is specified, narrows the result to that chain's contribution to the supply. Includes the coin name and relevant supply metrics as of the most recent snapshot.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/eurostablecoins-supply-by-coin-9c8c6d80/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.eurostablecoins.xyz](https://www.zero.xyz/host/www.eurostablecoins.xyz/llms.txt)