# Saylor Innovations ECB Key Interest Rates

> Saylor Innovations ECB Key Interest Rates is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-17).

Returns current ECB key interest rates (main refinancing, deposit facility, marginal lending) with effective dates, last change in basis points, and rate-change history

## Facts

- Endpoint: GET https://saylorinnovations.com/api/econ/ecb-rates?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/saylor-innovations-ecb-key-interest-rates-252e34a0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JaSKKDe9m_cGCsMM12flr

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 saylor-innovations-ecb-key-interest-rates-252e34a0
```

Example prompt: What are the current ECB key interest rates — main refinancing, deposit facility, and marginal lending — including when they last changed and by how many basis points?

## When to prefer this

Use this endpoint when you need the official ECB policy rates (main refinancing, deposit facility, marginal lending) with structured change history and basis-point deltas. Prefer this over generic financial data APIs when you specifically need ECB benchmark rates for the euro area monetary policy context, with authoritative sourcing and rate-change history built in.

## Known failure modes

- ECB data source temporarily unavailable — may return stale or null values with a note field explaining the caveat
- Network timeout if upstream ECB data feed is slow
- Malformed response if ECB changes their data format

## How this service works

ECB key interest rates - main refinancing, deposit facility and marginal lending rates with effective date, last change in basis points and rate-change history

## Output

A JSON object containing the three ECB key rates (main refinancing operations, deposit facility, marginal lending facility), each with the current rate value, effective date, last change in basis points, and rate-change history. Also includes the currency area (EUR), data source attribution, and the UTC timestamp of when the check was run.

## 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",
      "POST",
      "PUT",
      "PATCH",
      "DELETE",
      "HEAD"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "required": [
      "rates"
     ],
     "properties": {
      "note": {
       "type": [
        "string",
        "null"
       ],
       "description": "Caveat or context for reading the result"
      },
      "rates": {
       "type": "object",
       "properties": {
        "deposit_facility": {
         "type": "object",
         "description": "Deposit facility"
        },
        "marginal_lending_facility": {
         "type": "object",
         "description": "Marginal lending facility"
        },
        "main_refinancing_operations": {
         "type": "object",
         "description": "Main refinancing operations"
        }
       },
       "description": "Rates keyed by code"
      },
      "source": {
       "type": [
        "string",
        "null"
       ],
       "description": "Data source the values come from"
      },
      "checked_at": {
       "type": [
        "string",
        "null"
       ],
       "description": "Time the check was run (UTC)"
      },
      "currency_area": {
       "type": "string",
       "description": "Currency area"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/saylor-innovations-ecb-key-interest-rates-252e34a0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from saylorinnovations.com](https://www.zero.xyz/host/saylorinnovations.com/llms.txt)