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GrantPulse Letter of Inquiry (LOI) Writer
x402
GrantPulse Letter of Inquiry (LOI) Writer is a paid API for AI agents from grantpulse.theaslangroupllc.com, paid per call via x402, $2/call, status unknown (last checked 2026-09-14).
Generates a complete, funder-researched, ready-to-send Letter of Inquiry with bracketed placeholders for org-specific facts, aligned to the funder's stated priorities and language
Price / call$2
Success—
StatusUnknown
How this service works
Complete, ready-to-send Letter of Inquiry: funder and project in, a one-page LOI out — researched against the funder's actual stated priorities and mirroring their language, with every organisation-specific fact left as a [BRACKETED] placeholder (never invented), alignment points listed, and an honest funder-fit read. The document that gets you invited to submit a full proposal. Works for foundations, corporate and government funders worldwide.
Output
A complete, one-page Letter of Inquiry document ready to send, with funder-specific language and priority alignment, all unknown org-specific facts left as [BRACKETED] placeholders, a list of alignment points between the project and funder priorities, and an honest assessment of funder-project fit.
Example use cases
Example prompt
“Draft a Letter of Inquiry for the Kresge Foundation — we're a workforce development nonprofit seeking $150,000 to expand our tech training program for low-income adults in Detroit, and I need the LOI to mirror Kresge's language around economic mobility and equitable opportunity.”
Technical details
Endpoint
GEThttps://grantpulse.theaslangroupllc.com/api/grant/loiWhen to prefer
Use this endpoint when a nonprofit, grant writer, or funding agent needs a polished, funder-researched Letter of Inquiry without manual research — especially when the funder's priorities are publicly stated and language-matching is critical to getting invited to submit a full proposal. Prefer this over a generic text generator because it specifically aligns output to real funder priorities and leaves org-specific facts as safe bracketed placeholders rather than hallucinating details.
Side effects
- Missing funder name or project description returns an error or generic output
- Obscure or unknown funder may result in limited priority alignment due to insufficient public data
- Vague project descriptions produce LOIs with many bracketed placeholders and low specificity
- API returns HTTP 402 if payment of $2 USDC is not processed via x402 protocol
- Rate limiting or service unavailability returns 5xx errors
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| org | string | who you are — type, track record, location |
| lang | string | language to respond in — defaults to English |
| amount | string | ask size, e.g. 75000 USD |
| funderrequired | string | the foundation/programme being approached |
| projectrequired | string | what you want funded, in a sentence or two |
| duration | string | e.g. 2 years |
Output
Schema · Response
{
"type": "json",
"example": {
"loi_text": "Dear [PROGRAM OFFICER NAME],\n\n...",
"fit_notes": "Strong programmatic fit; geography untested...",
"word_count": 512,
"subject_line": "Letter of Inquiry: Digital Literacy for Rural Seniors",
"alignment_points": [
"Mirrors the funder's stated focus on aging and technology equity"
],
"placeholders_to_fill": [
"[FOUNDING YEAR]",
"[NUMBER SERVED LAST YEAR]"
]
}
}Tags
x402
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