# SYNTHORA ECB Forex Fixing vs Market

> SYNTHORA ECB Forex Fixing vs Market is a paid API for AI agents from api.hergertsynthora.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-15).

Compares the ECB's official daily EUR/USD fixing rate against the live market rate, returning the deviation in basis points, direction, and an alert flag when deviation exceeds 25bps

## Facts

- Endpoint: POST https://api.hergertsynthora.com/v1/ecb-forex-fixing-vs-market
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synthora-ecb-forex-fixing-vs-market-b8ddf20e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ILicquuCvMxy7kXvLQYt7

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 synthora-ecb-forex-fixing-vs-market-b8ddf20e -d '<json body>'
```

Example prompt: Can you check today's ECB EUR/USD official fixing rate against the live market rate and tell me the deviation in basis points, which direction the market is off, and whether it's triggered the 25bps alert?

## When to prefer this

Use this endpoint when you need a precise, quantified comparison between the ECB's authoritative official EUR/USD fixing and the real-time market rate, specifically in basis points with directional context and an automated threshold alert. Prefer it over generic forex APIs when regulatory compliance, central bank reference rates, or ECB-anchored analysis is required. Both data sources are keyless, making this a zero-credential solution for EUR/USD fixing surveillance.

## Known failure modes

- ECB eurofxref-daily.xml unavailable or not yet published for the day (fixing typically published around 16:00 CET)
- open.er-api.com live rate feed unavailable or rate-limited
- Input schema accepts a string but the service may return an error if improperly formed
- Stale ECB data returned on weekends or EU holidays when no fixing is published
- Network timeout from either upstream source causing partial or failed response

## How this service works

SYNTHORA ecb-forex-fixing-vs-market: ECB daily EUR/USD fixing vs live market rate: deviation in basis points, direction and >25bps alert. Sources: official ECB eurofxref-daily.xml + open.er-api.com, both keyless.

## Output

Returns the ECB official EUR/USD daily fixing rate, the current live market rate from open.er-api.com, the deviation expressed in basis points, the direction (market above or below fixing), and a boolean/flag indicating whether the deviation exceeds 25 basis points.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synthora-ecb-forex-fixing-vs-market-b8ddf20e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.hergertsynthora.com](https://www.zero.xyz/host/api.hergertsynthora.com/llms.txt)