# LastLook Data — FRED Series Value by Date

> LastLook Data — FRED Series Value by Date is a paid API for AI agents from api.lastlookdata.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Returns the value of a supported FRED economic data series for a specific historical business date.

## Facts

- Endpoint: GET https://api.lastlookdata.com/api/date
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-lastlookdata-com-0ea73443
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AqeOD_ttp5C0B7uZdBuQ6

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-lastlookdata-com-0ea73443
```

Example prompt: What was the FRED FEDFUNDS rate on March 20, 2024? Pull the exact value from LastLook Data for that specific business day.

## When to prefer this

Use this endpoint when you need the exact value of a specific FRED economic series on a particular historical business date. Prefer this over the /api/current endpoint when historical point-in-time data is needed, and over the /api/last30 or /api/last90 endpoints when you only need a single date rather than a range. Best for backtesting, event-driven lookups, or answering 'what was X on date Y' questions.

## Known failure modes

- Non-business day requested (weekends, holidays) — no data available for that date
- Invalid or unsupported FRED series ID — only the 24 enumerated series IDs are supported
- Date out of range — too far in the past or future where data doesn't exist
- Missing required query parameters id or d — returns error
- Malformed date format — must be YYYY-MM-DD
- Payment failure — x402 payment of $0.01 USDC not completed

## How this service works

LastLook Data — value for any supported FRED series on a specific date. Use ?id=SERIES_ID&d=YYYY-MM-DD. Business days only.

## Output

Returns the observed value of the requested FRED series (e.g. FEDFUNDS, DGS10, CPIAUCSL) for the specified business date — a single numeric data point with its date and series metadata.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "d": "2024-03-20",
   "id": "FEDFUNDS"
  }
 }
}
```

## 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",
     "required": [
      "id",
      "d"
     ],
     "properties": {
      "d": {
       "type": "string",
       "description": "Date in YYYY-MM-DD format"
      },
      "id": {
       "enum": [
        "DGS30",
        "DGS10",
        "DGS5",
        "DGS2",
        "DGS1MO",
        "MORTGAGE30US",
        "MORTGAGE15US",
        "MSPUS",
        "HOUST",
        "FEDFUNDS",
        "SOFR",
        "DPRIME",
        "DTB3",
        "IORB",
        "EFFR",
        "CPIAUCSL",
        "CPILFESL",
        "UNRATE",
        "GDP",
        "SAHMREALTIME",
        "DCOILWTICO",
        "DCOILBRENTEU",
        "GASREGCOVW",
        "DHHNGSP"
       ],
       "type": "string",
       "description": "FRED series ID"
      }
     }
    }
   },
   "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-lastlookdata-com-0ea73443/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.lastlookdata.com](https://www.zero.xyz/host/api.lastlookdata.com/llms.txt)