# Darkly Energized: Bank of England Total Assets (USD)

> Darkly Energized: Bank of England Total Assets (USD) is a paid API for AI agents from darklyenergized.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-29).

Returns time-series data of the Bank of England's total assets converted to USD, with optional date filtering and statistical summary.

## Facts

- Endpoint: GET https://darklyenergized.com/api/v1/x402/series/cb_usd_gbcbbs?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/darkly-energized-bank-of-england-total-assets-usd-fd2d0e72
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qTDeDGAKBABgZv8nV6TE-

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 darkly-energized-bank-of-england-total-assets-usd-fd2d0e72
```

Example prompt: Pull me the Bank of England total assets in USD for the last 5 years, up to today, with a limit of 1000 data points so I can track how the BoE balance sheet has evolved.

## When to prefer this

Use this endpoint when you need Bank of England balance sheet data specifically denominated in USD for cross-country comparability. Prefer it over raw BoE data sources when you need currency-normalized central bank data, or when building global liquidity dashboards alongside sibling endpoints for the Fed, ECB, PBoC, BoJ, SNB, BoC, and BoK. Choose the statistical summary mode when you need aggregate metrics rather than full time series.

## Known failure modes

- Invalid date format returns a 400 error
- Requesting dates before the series begins returns empty data array
- Limit exceeding 10000 returns a validation error
- Payment not included or insufficient USDC results in 402 Payment Required
- Network timeout on large date ranges with high limit

## How this service works

Bank of England Total Assets (USD) ($0.05): Bank of England total assets converted to USD.

## Output

Returns a JSON object with a data series containing dated value pairs (time: YYYY-MM-DD, value: number in USD), plus metadata including series name, description, category, frequency, unit, data count, date range, and freshness information (last observation date, whether stale). Optionally returns a statistical summary instead of raw data points.

## 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": {
      "to": {
       "type": "string",
       "format": "date",
       "description": "End date (YYYY-MM-DD)"
      },
      "from": {
       "type": "string",
       "format": "date",
       "description": "Start date (YYYY-MM-DD)"
      },
      "after": {
       "type": "string",
       "format": "date",
       "description": "Return points after this date (meta.pagination.cursor)"
      },
      "limit": {
       "type": "integer",
       "default": 500,
       "maximum": 10000,
       "minimum": 1,
       "description": "Most data points to return, oldest first"
      },
      "summary": {
       "type": "boolean",
       "default": false,
       "description": "Return a statistical summary instead of the data points"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "oneOf": [
      {
       "type": "object",
       "required": [
        "data",
        "meta"
       ],
       "properties": {
        "data": {
         "type": "object",
         "required": [
          "id",
          "name",
          "description",
          "category",
          "frequency",
          "data"
         ],
         "properties": {
          "id": {
           "type": "string"
          },
          "data": {
           "type": "array",
           "items": {
            "type": "object",
            "required": [
             "time",
             "value"
            ],
            "properties": {
             "time": {
              "type": "string",
              "format": "date",
              "example": "2026-02-14"
             },
             "value": {
              "type": [
               "number",
               "null"
              ],
              "example": 1.23,
              "description": "Null where the series has no value on that date (for example while a computed series warms up)."
             }
            }
           }
          
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/darkly-energized-bank-of-england-total-assets-usd-fd2d0e72/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from darklyenergized.com](https://www.zero.xyz/host/darklyenergized.com/llms.txt)