# Mercury402 Inflation Tracker Composite Dashboard

> Mercury402 Inflation Tracker Composite Dashboard is a paid API for AI agents from api.mercury402.com, paid per call via x402, $0.4/call, status unknown (last checked 2026-09-15).

Returns a composite inflation tracking snapshot including CPI value and timestamp for macroeconomic monitoring by AI agents.

## Facts

- Endpoint: GET https://api.mercury402.com/v1/composite/inflation-tracker
- Price: $0.4/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mercury402-inflation-tracker-composite-dashboard-ef714cd1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_HGf32LEbBzkHwUZkjfVUy

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-ef714cd1
```

Example prompt: Pull the latest inflation snapshot from Mercury402 — I need the current CPI reading and timestamp so I can update my macro dashboard.

## When to prefer this

Choose this endpoint when you need a single pay-per-call composite inflation snapshot (CPI + timestamp) without managing a subscription, especially in autonomous agent workflows that pay per query using USDC on Base via the x402 protocol. Prefer it over subscription-based data providers when cost-per-call economics favor sporadic queries, or when your agent stack is already integrated with x402 micropayments.

## Known failure modes

- Payment not fulfilled — returns HTTP 402 if USDC payment on Base is not included or insufficient
- Stale data — CPI may not reflect intraday updates if underlying FRED data has not refreshed
- No required input parameters documented — schema appears minimal, so parameter errors are unlikely but undocumented options may be silently ignored
- Network timeout — real-time financial data endpoint may occasionally be slow under load

## 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 an ISO 8601 timestamp indicating when the data was recorded, representing a composite inflation snapshot suitable for macro analysis and financial decision-making.

## 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-ef714cd1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.mercury402.com](https://www.zero.xyz/host/api.mercury402.com/llms.txt)