# SYNTHORA ECB Euro-Area HICP Inflation (Annual Rate)

> SYNTHORA ECB Euro-Area HICP Inflation (Annual Rate) is a paid API for AI agents from ecb-hicp-inflation-euro-area.hergertsynthora.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).

Fetches the ECB's Harmonised Index of Consumer Prices (HICP) annual inflation rate for the euro area via the ECB SDMX Data Portal, returning time-series observations in JSON.

## Facts

- Endpoint: POST https://ecb-hicp-inflation-euro-area.hergertsynthora.com/service
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synthora-ecb-euro-area-hicp-inflation-annual-rate-e9f430d3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_EvOoY4cbKNocXZJl2pkQD

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-euro-area-hicp-inflation-annual-rate-e9f430d3 -d '<json body>'
```

Example prompt: Pull the latest 3 observations of the ECB euro-area HICP annual inflation rate in jsondata format using the standard series key M.U2.N.000000.4.ANR.

## When to prefer this

Choose this endpoint when you need official ECB-sourced euro-area HICP annual inflation data in a machine-readable JSON format without managing ECB SDMX API credentials or keyless authentication yourself. Prefer it for autonomous agent pipelines that need structured eurozone inflation time series for real-yield calculations, cross-region macro comparisons, or inflation monitoring — especially when integrating with x402 micropayment workflows.

## Known failure modes

- ECB SDMX Data Portal upstream unavailability returns an error or empty observations array
- Invalid series_key results in no data returned
- Unrecognized format value may cause parsing failure
- lastNObservations set too high may return partial data if ECB history is limited
- Network timeout on upstream ECB API call

## How this service works

Euro-area Harmonised Index of Consumer Prices annual inflation rate from the ECB SDMX Data Portal (keyless JSON, dataflow ICP). Powers autonomous eurozone inflation agents, real-yield calculators, and agent-to-agent macro pipelines comparing EU vs US price pressures. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.

## Output

A JSON object containing the ECB HICP series key (M.U2.N.000000.4.ANR), an array of time-series observations (date + value pairs for the annual inflation rate), and a provenance block with the originating ECB SDMX API URL and source label.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "format": {
   "type": "string",
   "description": "format"
  },
  "series_key": {
   "type": "string",
   "description": "series_key"
  },
  "lastNObservations": {
   "type": "string",
   "description": "lastNObservations"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "niche": "ecb-hicp-inflation-euro-area",
  "result": {
   "source": "ECB Euro-Area HICP Inflation (Annual Rate)",
   "series_key": "M.U2.N.000000.4.ANR",
   "observations": []
  },
  "provenance": {
   "url": "https://data-api.ecb.europa.eu/service/data/ICP/M.U2.N.000000.4.ANR?lastNObservations=3&format=jsondata",
   "source": "ECB Euro-Area HICP Inflation (Annual Rate)"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synthora-ecb-euro-area-hicp-inflation-annual-rate-e9f430d3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from ecb-hicp-inflation-euro-area.hergertsynthora.com](https://www.zero.xyz/host/ecb-hicp-inflation-euro-area.hergertsynthora.com/llms.txt)