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srch.best Fiscal Data API
x402
srch.best Fiscal Data API is a paid API for AI agents from x402.srch.best, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Retrieves structured US fiscal data (federal debt and interest rates) by security type and date range, paid per request via x402
Price / call$0.001
Success—
StatusUnknown
How this service works
Structured fiscal data for agents, paid per request with x402 v2
Output
Returns a structured, paginated list of US fiscal records — either federal debt figures or interest rate data — filtered by security type and date range, including an opaque cursor for fetching the next page of results.
Example use cases
Historical Treasury interest rate analysis
“Get me interest rate data for US Treasury bonds from January 2020 through December 2022, with up to 100 results, so I can analyze how rates changed over those years.”
Federal debt tracking by security type
“Fetch the federal debt figures broken down for Treasury bills from March 1 2024 to June 30 2024, limit 20 results.”
TIPS rate lookup for inflation research
“I need structured interest rate data specifically for TIPS securities from July 2022 to July 2023 — give me up to 50 records.”
Technical details
Endpoint
POSThttps://x402.srch.best/fiscalWhen to prefer
Choose this endpoint when you need authoritative, structured US government fiscal data (federal debt or Treasury interest rates) segmented by security type and date range, especially in agentic workflows where per-request micropayment via x402 is acceptable and you need paginated, machine-readable output rather than raw web search results.
Side effects
- Invalid 'type' enum value returns a validation error
- 'security' enum value not matching allowed options returns a bad request
- Date format not conforming to ISO 8601 (YYYY-MM-DD) causes a parse error
- Limit exceeding 100 or below 1 returns a validation error
- Expired or invalid pagination cursor returns an error or empty result
- Payment failure via x402 returns a 402 Payment Required response
- No data available for the specified date range returns an empty result set
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| type | string | |
| limit | integer | |
| cursor | string | Opaque continuation cursor returned by the previous response. |
| toDate | string | |
| fromDate | string | |
| security | string |
Tags
x402
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