# Federal Reserve Net Liquidity (Enhanced) — Darkly Energized

> Federal Reserve Net Liquidity (Enhanced) — Darkly Energized is a paid API for AI agents from darklyenergized.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-29).

Returns a time series of an enhanced Federal Reserve net liquidity indicator derived from daily Fed balance sheet data, showing reserves available to markets.

## Facts

- Endpoint: GET https://darklyenergized.com/api/v1/x402/series/wresbal_plus?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/federal-reserve-net-liquidity-enhanced-darkly-energized-5a2e158a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7IYLAPUAYudNUlLBZ7R4s

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 federal-reserve-net-liquidity-enhanced-darkly-energized-5a2e158a
```

Example prompt: Pull me the Darkly Energized enhanced Fed net liquidity series from 2023-01-01 to today — I want to see how reserves available to markets have trended over the past two years.

## When to prefer this

Choose this endpoint when you need an enhanced, market-aware view of Federal Reserve net liquidity that goes beyond raw balance sheet totals — specifically when you want to understand reserves actually available to markets (wresbal_plus methodology). Prefer this over the basic Federal Reserve Total Assets endpoint when you need a liquidity signal rather than a simple asset tally. Best for macro analysis, risk models, or automated monitoring of monetary conditions where the Fed's net reserve posture matters.

## Known failure modes

- Invalid date format returns a 400 error — dates must be YYYY-MM-DD
- Requesting limit above 10000 is rejected — max is 10000 data points
- Date range with no data (e.g., future dates beyond last observation) returns an empty data array
- Null values appear in the array during series warm-up periods where computed values are unavailable
- Missing or invalid x402 payment header results in a 402 Payment Required response

## How this service works

Federal Reserve Net Liquidity ($0.10): Enhanced Fed net liquidity indicator. Uses daily Fed balance sheet data to produce an enhanced view of reserves available to markets.

## Output

Returns a JSON object containing the series metadata (id, name, description, category, frequency, unit) and an array of dated value pairs representing the enhanced Fed net liquidity level over the requested period. Also includes pagination metadata, data range boundaries, and a freshness object indicating the last observation date and whether the series is 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/federal-reserve-net-liquidity-enhanced-darkly-energized-5a2e158a/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)