# SiteSignal Grant Eligibility Brief

> SiteSignal Grant Eligibility Brief is a paid API for AI agents from phases-prot-shine-royal.trycloudflare.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Screen a single Grants.gov opportunity for applicant-type, deadline, budget, and topical-fit conflicts using live official API data

## Facts

- Endpoint: GET https://phases-prot-shine-royal.trycloudflare.com/x402/grant-eligibility
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sitesignal-grant-eligibility-brief-31da4678
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_T5t4DrVAqEgpeeJk4aL-b

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-eligibility-brief-31da4678
```

Example prompt: Can you screen Grants.gov opportunity 123456789 to see if our organization qualifies — we're a small nonprofit, our budget is around $250,000, and we need at least 21 days to put together an application?

## When to prefer this

Use this endpoint when you need a quick, structured eligibility pre-screen for a specific Grants.gov opportunity before investing time in a full application. It is best suited for agents helping nonprofits, researchers, or grant writers triage opportunities by applicant type, budget, deadline, and topic fit against live official data — not for broad grant discovery or searching across multiple opportunities.

## Known failure modes

- Invalid or non-existent opportunity_id returns an error or empty result
- Expired or closed opportunity may return conflict on deadline
- Malformed opportunity_id (non-numeric or too long) rejected by schema validation
- Grants.gov API unavailability causes upstream fetch failure
- Profile string too long (over 1000 characters) rejected at input validation
- days_needed_to_apply exceeds maximum of 180

## How this service works

Screen one Grants.gov opportunity for applicant-type, deadline, budget, and topical-fit conflicts using the current official API record.

## Output

A structured brief identifying conflicts or fits across applicant type, deadline feasibility, budget alignment, and topical relevance for the specified Grants.gov opportunity, drawn from the live official API record

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "opportunity_id",
      "profile"
     ],
     "properties": {
      "profile": {
       "type": "string",
       "maxLength": 1000
      },
      "eligibility": {
       "type": "string",
       "maxLength": 200
      },
      "opportunity_id": {
       "type": "string",
       "pattern": "^[0-9]{1,12}$"
      },
      "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-eligibility-brief-31da4678/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)