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Vextorium US Grants Search
x402
Vextorium US Grants Search is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-15).
Search and filter US federal grant opportunities from Grants.gov by keyword, agency, and status
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 list of matching federal grant opportunities, each with title, grant number, agency name, agency code, open/close dates, current status, and a direct link to the Grants.gov detail page, plus total count of matching results and the echoed search parameters.
Example use cases
Research lab finding AI funding
“Find all open federal grants related to artificial intelligence research — I want to see which agencies are offering them and when they close.”
Nonprofit seeking public health grants
“Search for upcoming and open federal grants from the NIH related to infectious disease — give me up to 50 results so I can review them.”
University grants office monitoring opportunities
“Pull all current grant opportunities from the National Science Foundation with status open, up to 30 results, so we can prioritize applications this quarter.”
Technical details
Endpoint
POSThttps://api.vextorium.com/v1/us-grants?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to discover or monitor US federal grant opportunities programmatically, especially when filtering by keyword, agency, or status (open/upcoming/all). It aggregates Grants.gov data in a structured, machine-readable format suitable for agent workflows, avoiding manual web scraping. Prefer this over general web search when you need structured grant metadata (dates, numbers, agency codes) for downstream processing or comparison.
Side effects
- No grants found matching the search criteria — returns empty calls array with total 0
- Invalid status enum value — request rejected with schema validation error
- Agency name not recognized or misspelled — returns empty results rather than error
- Grants.gov source temporarily unavailable — may return error or stale data
- Limit set too high may result in slow or truncated responses
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | integer | |
| agency | string | |
| search | string | |
| status | string |
Output
Schema · Response
{
"type": "json",
"example": {
"calls": [
{
"link": "https://www.grants.gov/search-results-detail/361050",
"open": "10/02/2026",
"close": "05/28/2027",
"title": "Centers for Structural Biology of HIV and Other Infectious Diseases (U54 Clinical Trial Not Allowed)",
"agency": "National Institutes of Health",
"number": "RFA-AI-28-031",
"status": "posted",
"agency_code": "HHS-NIH11"
},
{
"link": "https://www.grants.gov/search-results-detail/364017",
"open": "10/01/2026",
"close": "",
"title": "Foundations for Operating the National Artificial Intelligence Research Resource: the NAIRR Operations Center (NAIRR-OC)",
"agency": "U.S. National Science Foundation",
"number": "25-546",
"status": "posted",
"agency_code": "NSF"
}
],
"total": 150,
"agency": null,
"search": "artificial intelligence",
"source": "Grants.gov (US Government, public domain)",
"status": "open"
}
}Tags
x402
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