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IntentFence US CPI Verified Data Endpoint
x402
IntentFence US CPI Verified Data Endpoint is a paid API for AI agents from agentpass-protocol.rmalka06.chatgpt.site, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-10).
Returns verified US Consumer Price Index (CPI) data — headline and core, index values and year-over-year percent changes — for a given month, with x402 payment quote validation checks.
Price / call$0.001
Success—
StatusUnknown
How this service works
Fail-closed, action-bound authorization for AI agents with five-minute ES256 receipts, MCP risk scanning, and x402 payment safety.
Output
A JSON object containing: headline and core CPI index values and year-over-year percent changes; the period covered (month name, year, YYYY-MM string); a verification status field ('verified'); a signed receipt object with assurance level ('official-source-data'); a UUID request ID; and the IntentFence version string. All data is presented as confirmed-official sourced figures.
Example use cases
Inflation dashboard data refresh
“Pull the most recent US headline and core CPI figures for my inflation dashboard, including the year-over-year percent changes and a verified receipt so I know the data is official.”
Historical CPI lookup for specific month
“What were the headline and core CPI index values and year-over-year changes for March 2025? I need a signed verification receipt with the response.”
Automated agent payment safety check
“Before my agent pays for this CPI data quote, verify that the x402 payment is for the right asset and resource, then fetch the verified CPI figures for the latest available period.”
Technical details
Endpoint
GEThttps://agentpass-protocol.rmalka06.chatgpt.site/api/us-cpi?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need verified, signed US CPI data (headline and core) with an assurance receipt proving official sourcing, especially in agentic workflows where payment integrity (x402 quote validation) and data provenance matter. Prefer it over raw BLS API calls when you need a structured, agent-ready response with built-in verification metadata and micro-payment access ($0.001 USDC).
Side effects
- Invalid month format (not matching YYYY-MM pattern) returns a validation error
- Requesting a future or not-yet-published month may return no data or an error
- x402 payment not completed or invalid quote results in 402 response blocking data access
- Network or upstream BLS data source unavailability may cause timeouts or 503 errors
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"cpi": {
"core_index": 336.882,
"headline_index": 333.952,
"core_yoy_percent": 2.594,
"headline_yoy_percent": 3.531
},
"period": {
"name": "June",
"year": "2026",
"month": "2026-06"
},
"status": "verified",
"receipt": {
"signed": true,
"assurance": "official-source-data"
},
"request_id": "a6f37ff9-90aa-43f7-8304-f329292bc702",
"intentfence": "0.8"
}
}Tags
x402
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