# Federal Grant Search Change Intelligence API

> Federal Grant Search Change Intelligence API is a paid API for AI agents from grant-search.krimskrams.xyz, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-13).

Returns a structured diff of new grants, field changes, deadline risks, and award changes detected between Grants.gov snapshots within a specified scope and time window.

## Facts

- Endpoint: POST https://grant-search.krimskrams.xyz/v1/change-intelligence
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/federal-grant-search-change-intelligence-api-2bf4402f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__j_CFAoxMI1S3ZjgTAtxN

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability federal-grant-search-change-intelligence-api-2bf4402f -d '<json body>'
```

Example prompt: Show me what changed in federal grants related to 'climate resilience' over the past 14 days as of now — give me up to 50 events and start from the beginning.

## When to prefer this

Use this endpoint when you need to detect *changes* in the federal grant landscape — new grants, modified fields, shifting deadlines, or award updates — rather than just searching current listings. It is ideal for monitoring workflows, weekly digests, and compliance tracking where knowing *what changed* and *when* is more important than a one-time search. Prefer sibling search endpoints for discovering current grants from scratch.

## Known failure modes

- Invalid as_of datetime format returns 422 validation error
- Cursor format mismatch (not 'start' or 'N:N' pattern) causes 422
- Scope string exceeding 100 characters rejected
- event_limit outside 1–100 range rejected
- No changes found within window returns empty events array
- Upstream Grants.gov snapshot unavailable may return 503 or stale data

## How this service works

Find new or changed U.S. federal grants for a maintained scope. Use scope, as_of, window_days, event_limit, and continuation cursor inputs. Receive JSON with events, changed fields, deadline risks, award-value changes, dataset status, evidence URLs, and next_request.

## Output

A JSON object containing categorized grant change events — new grant listings, modified fields (e.g. award ceiling, eligibility), deadline risk flags, and award status changes — each with official Grants.gov evidence links. Also includes a cursor for paginating through additional results.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "as_of": {
   "type": "string",
   "title": "As Of",
   "format": "date-time"
  },
  "scope": {
   "type": "string",
   "title": "Scope",
   "maxLength": 100
  },
  "cursor": {
   "type": "string",
   "title": "Cursor",
   "default": "start",
   "pattern": "^(?:start|[0-9]+:[0-9]+)$",
   "maxLength": 50
  },
  "end_cursor": {
   "anyOf": [
    {
     "type": "string",
     "pattern": "^[0-9]+:[0-9]+$",
     "maxLength": 50
    },
    {
     "type": "null"
    }
   ],
   "title": "End Cursor",
   "default": null
  },
  "event_limit": {
   "type": "integer",
   "title": "Event Limit",
   "default": 20,
   "maximum": 100,
   "minimum": 1
  },
  "window_days": {
   "type": "integer",
   "title": "Window Days",
   "default": 7,
   "maximum": 3650,
   "minimum": 0
  },
  "end_snapshot_id": {
   "anyOf": [
    {
     "type": "integer",
     "minimum": 1
    },
    {
     "type": "null"
    }
   ],
   "title": "End Snapshot Id",
   "default": null
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/federal-grant-search-change-intelligence-api-2bf4402f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from grant-search.krimskrams.xyz](https://www.zero.xyz/host/grant-search.krimskrams.xyz/llms.txt)