# LastLook Data — Yield Curve Spreads (2s10s & 3m10y) with Inversion Signal

> LastLook Data — Yield Curve Spreads (2s10s & 3m10y) with Inversion Signal is a paid API for AI agents from api.lastlookdata.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-13).

Returns current US Treasury yield curve spreads (2s10s and 3m10y) with an inversion signal, computed from FRED data

## Facts

- Endpoint: GET https://api.lastlookdata.com/api/derived/yield-curve
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-lastlookdata-com-c295200e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vZBOmjEa614MdQI8n4MTv

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-c295200e
```

Example prompt: What are the current US Treasury yield curve spreads — specifically the 2s10s and 3-month/10-year — and is the yield curve currently inverted?

## When to prefer this

Use this endpoint when you need a quick, pre-computed yield curve spread summary including the inversion signal without having to manually fetch and calculate individual Treasury series from FRED. Ideal for macroeconomic monitoring, recession signal detection, or financial dashboards that need 2s10s and 3m10y spreads in a single call.

## Known failure modes

- FRED data unavailable or stale — upstream data source outage may result in delayed or missing values
- Rate limit or payment failure — 402 payment required if x402 payment not processed
- Network timeout — API may be slow if FRED data refresh is in progress
- Invalid endpoint path — returns 404 if URL is malformed

## How this service works

LastLook Data — yield curve spreads (2s10s and 3m10y) with inversion signal. Computed from FRED Treasury data.

## Output

Returns the current 2s10s (2-year vs 10-year Treasury) spread, 3m10y (3-month vs 10-year Treasury) spread, and an inversion signal flag indicating whether the yield curve is currently inverted, all derived from FRED Treasury data.

## 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-lastlookdata-com-c295200e/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)