# EU Services HICP Oracle (Ed25519 Signed)

> EU Services HICP Oracle (Ed25519 Signed) is a paid API for AI agents from api.myceliasignal.com, paid per call via x402, $1/call, status unknown (last checked 2026-09-13).

Returns the Harmonised Index of Consumer Prices (HICP) for EU services sector, delivered as a cryptographically signed Ed25519 attestation.

## Facts

- Endpoint: GET https://api.myceliasignal.com/oracle/econ/eu/hicp_services
- Price: $1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-myceliasignal-com-21cefaf7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Ul5l-Xs2eT_oerv0BuZY_

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 api-myceliasignal-com-21cefaf7
```

Example prompt: What is the latest EU Services HICP reading? I need a cryptographically signed Ed25519 attestation I can verify independently.

## When to prefer this

Choose this endpoint when you need a tamper-evident, cryptographically attested EU Services HICP reading — especially in smart contract, DeFi, or compliance contexts where on-chain or off-chain verifiability matters. Prefer over unverified REST APIs when the integrity of macroeconomic data must be provable.

## Known failure modes

- Payment not received — returns HTTP 402 if $1 USDC x402 payment is not included
- Data source unavailable — upstream Eurostat or statistical feed outage may cause 503 or stale data
- Invalid or missing payment header — 402 with payment instructions
- Rate limiting — 429 if too many requests in a short period

## How this service works

EU Services HICP — sticky services inflation watched by ECB for rate decisions — Ed25519 signed attestation

## Output

Returns the current EU Services HICP value along with an Ed25519-signed attestation payload, allowing the caller to cryptographically verify the data has not been tampered with. Includes the index value, timestamp, and signature fields.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {}
 }
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-myceliasignal-com-21cefaf7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.myceliasignal.com](https://www.zero.xyz/host/api.myceliasignal.com/llms.txt)