# SiteSignal Grant Opportunity Match

> SiteSignal Grant Opportunity Match is a paid API for AI agents from phases-prot-shine-royal.trycloudflare.com, paid per call via x402, $0.05/call, status down (last checked 2026-09-15).

Searches current Grants.gov postings and returns up to five source-linked grant opportunities matched to a supplied applicant profile.

## Facts

- Endpoint: GET https://phases-prot-shine-royal.trycloudflare.com/x402/grant-match
- Price: $0.05/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sitesignal-grant-opportunity-match-5ef5d90c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rwiHy2NxXesoCkyV-tilF

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 sitesignal-grant-opportunity-match-5ef5d90c
```

Example prompt: Search Grants.gov for open federal grant opportunities that match our profile — we're a 501(c)(3) environmental education nonprofit seeking grants up to $250,000, preferably from EPA or USDA, with at least 21 days left to apply. Return up to 5 matches with source links.

## When to prefer this

Use this endpoint when you need to match a specific applicant profile against currently posted Grants.gov opportunities and get source-linked results quickly. Prefer it over generic web search when you need structured, deduplicated grant data with direct Grants.gov links, budget and deadline filtering, and agency scoping — especially for AI agents automating grant discovery workflows for nonprofits, research institutions, or small businesses.

## Known failure modes

- No matching grants found for the given profile — returns empty result set
- Profile string exceeds 800 character limit — request rejected with validation error
- Grants.gov upstream unavailable — timeout or 502 error returned
- Invalid agency code or eligibility string format — query may return zero results
- days_needed_to_apply set beyond 180 — rejected by schema validation
- limit parameter exceeds 5 — capped or rejected by schema

## How this service works

Search current posted Grants.gov opportunities and return up to five source-linked matches for a supplied applicant profile.

## Output

Returns up to five grant opportunity matches from Grants.gov, each with a title, funding agency, source link, and relevant details matched to the supplied applicant profile, filtered by optional agency, eligibility, budget, and deadline window parameters.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "profile"
     ],
     "properties": {
      "limit": {
       "type": "integer",
       "default": 3,
       "maximum": 5,
       "minimum": 1
      },
      "agency": {
       "type": "string",
       "maxLength": 80
      },
      "profile": {
       "type": "string",
       "maxLength": 800
      },
      "keywords": {
       "type": "string",
       "description": "One to eight comma-separated search phrases."
      },
      "eligibility": {
       "type": "string",
       "maxLength": 200
      },
      "project_budget_usd": {
       "type": "number",
       "minimum": 1
      },
      "days_needed_to_apply": {
       "type": "integer",
       "default": 14,
       "maximum": 180,
       "minimum": 1
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sitesignal-grant-opportunity-match-5ef5d90c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from phases-prot-shine-royal.trycloudflare.com](https://www.zero.xyz/host/phases-prot-shine-royal.trycloudflare.com/llms.txt)