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Vextorium US Federal Grant Search
x402
Vextorium US Federal Grant Search is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-16).
Search US federal grant opportunities from Grants.gov by keyword and/or agency, returning title, number, agency, open/close dates, status, and direct link
Price / call$0.003
Success—
StatusUnknown
How this service works
US federal grant opportunities from Grants.gov: title, number, agency, open and close dates, status and link; search by keyword (AI, energy, health...) and agency (NSF, NIH, DOE...), open or forecasted.
Output
Returns a JSON object with the total count of matching grants, the search term used, agency filter applied, status filter, source (Grants.gov), and an array of grant convocatorias each containing: title, grant number, agency name, agency code, open date (apertura), close date (cierre), current status, and a direct link to the opportunity.
Example use cases
University grant discovery for research team
“Search Grants.gov for open federal grants related to 'artificial intelligence' from NSF — give me up to 15 results with titles, deadlines, and links.”
Nonprofit funding opportunity search
“Find me all open and forecasted federal grants related to 'affordable housing' — I want to see what's available from HUD right now.”
Grant deadline monitoring for proposal team
“Pull up to 10 currently open federal grants from NIH related to 'mental health' so I can see their close dates and grant numbers.”
Technical details
Endpoint
POSThttps://api.vextorium.com/subvenciones-eeuu-pago?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to search US federal grant opportunities directly from Grants.gov with filtering by keyword, agency, and open/forecasted status. Prefer this over generic web search when you need structured data (grant numbers, dates, links) rather than unstructured text, and when you want to programmatically process or display grant listings in an agent workflow.
Side effects
- No grants found matching the keyword/agency combination — returns empty convocatorias array
- Invalid agency code or name yields no results
- Network timeout when Grants.gov is slow or unavailable
- Missing required input body fields causes request error
- Forecasted grants may lack close dates (null cierre)
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| buscar | string | |
| estado | string | |
| limite | integer | |
| agencia | string |
Tags
x402
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