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SYNTHORA US CPI-U Index (BLS Public API)
x402
SYNTHORA US CPI-U Index (BLS Public API) is a paid API for AI agents from bls-cpi-us-index.hergertsynthora.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Retrieves monthly US Consumer Price Index for All Urban Consumers (CUUR0000SA0) data from the BLS Public API for a specified year range.
Price / call$0.001
Success—
StatusUnknown
How this service works
US Consumer Price Index for All Urban Consumers (series CUUR0000SA0) monthly index levels from the keyless BLS Public Data API via POST JSON. Feeds autonomous inflation agents, COLA/real-return calculators, and agent-to-agent macro bots tracking headline US CPI. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.
Output
Returns a JSON object with an 'ok' boolean, a niche identifier ('bls-cpi-us-index'), and a result object containing monthly CPI-U index levels for the requested series and year range, sourced from the BLS Public Data API.
Example use cases
Inflation-adjusted salary calculation
“I need the monthly CPI-U index values from 2015 to 2024 so I can compute the real purchasing power change of a $60,000 salary over those years.”
COLA adjustment for pension fund
“Fetch the BLS CPI-U monthly data from 2022 through 2024 — I need those index levels to calculate the cost-of-living adjustment we owe retirees this year.”
Macro bot tracking headline CPI trends
“Get me the latest available CPI-U monthly readings from 2023 to 2025 so I can update my inflation monitoring dashboard with the most recent headline US CPI figures.”
Technical details
Endpoint
POSThttps://bls-cpi-us-index.hergertsynthora.com/serviceWhen to prefer
Choose this endpoint when you need programmatic, per-call access to BLS CPI-U monthly index data (CUUR0000SA0) without managing BLS API keys, especially in autonomous agent workflows, COLA calculators, or macro bots that require headline US inflation data on demand. Prefer it over direct BLS API calls when operating in a micropayment (x402) ecosystem where keyless, metered access is desirable.
Side effects
- Invalid or unsupported series ID returns empty or error result
- Year range outside BLS data availability returns no data
- Malformed request body (missing required fields) may return error
- BLS upstream API downtime causes proxy failure
- End year before start year may cause empty or error response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| endyear | string | endyear |
| seriesid | array | seriesid |
| startyear | string | startyear |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"niche": "bls-cpi-us-index",
"result": {}
}
}Tags
x402
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