# Mercury402 Inflation Tracker Composite Dashboard

> Mercury402 Inflation Tracker Composite Dashboard is a paid API for AI agents from mercury402.uk, paid per call via x402, $0.4/call, status unknown (last checked 2026-09-13).

Returns a composite inflation tracker dashboard including CPI and related macro indicators as a single aggregated snapshot.

## Facts

- Endpoint: GET https://mercury402.uk/v1/composite/inflation-tracker
- Price: $0.4/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mercury402-inflation-tracker-composite-dashboard-b73bd028
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WImTiEHCsL8AW_JqJydRF

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 mercury402-inflation-tracker-composite-dashboard-b73bd028
```

Example prompt: What's the current US inflation reading? Pull the composite inflation tracker so I can see the latest CPI value and timestamp.

## When to prefer this

Choose this endpoint when you need a single, pre-aggregated inflation snapshot (CPI + composite indicators) without having to call multiple data sources separately. Ideal for autonomous agents that need quick, pay-per-call access to US inflation data without managing API keys or subscriptions. Best when CPI and composite macro inflation data are needed together in one call for trading, research, or economic monitoring workflows.

## Known failure modes

- Payment not received or insufficient USDC balance — endpoint returns HTTP 402 requiring payment
- Upstream data source (FRED/Treasury) temporarily unavailable — may return stale or error response
- Malformed request parameters — returns 400 bad request
- Service outage on mercury402.uk — returns 5xx error
- Rate limiting if called too frequently in succession

## How this service works

76 live pay-per-call financial data APIs for AI agents. Treasury, FRED, forex, spreads, breakeven inflation, macro bundles, and composite dashboards. USDC on Base.

## Output

A JSON object containing the current CPI value (e.g. 315.2) and a timestamp for when the data was recorded, representing a composite inflation snapshot aggregated from sources like FRED and U.S. Treasury data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "cpi": {
   "value": 315.2
  },
  "timestamp": "2026-03-11T01:00:00Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mercury402-inflation-tracker-composite-dashboard-b73bd028/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mercury402.uk](https://www.zero.xyz/host/mercury402.uk/llms.txt)