GrantSonar

Official9 toolsLive

by romulusfoundry

Search verified-open US grants (federal, state, foundation). Read-only MCP for AI agents.

MCP Server: io.github.romulusfoundry/grantsonar

The io.github.romulusfoundry/grantsonar MCP server provides read-only access for AI agents to search verified-open US grants, including federal, state, and foundation opportunities. It exposes a set of MCP tools for grant search and retrieval workflows.

🛠️ Key Features

Search verified-open US grants
Covers federal, state, and foundation grants
Read-only MCP server behavior
9 tools available

🚀 Use Cases

Help AI agents find relevant US grants for research or projects
Enable automated grant discovery across federal, state, and foundation categories

⚡ Developer Benefits

Dedicated MCP interface for grant search use cases
Tooling bundle size: 9 tools
Suitable for agent workflows that require non-mutating access

⚠️ Limitations

Access is read-only (no updates or write operations implied)
Scope is limited to verified-open US grants

Captured live from the server via tools/list.

search_grants

Search open grant opportunities in the GrantSonar corpus (federal, state, and foundation grants). Uses semantic similarity over a plain-English description of the project or need, with a keyword fallback. Returns title, agency, deadline, award amounts, similarity score, and a GrantSonar URL per hit.

Parameters2

query	string	required	Plain-English description of the project, organization, or funding need (e.g. "after-school STEM programs for rural Missouri students").
limit	integer	optional	Maximum number of results (1-25, default 10).

Raw schema

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "description": "Plain-English description of the project, organization, or funding need (e.g. \"after-school STEM programs for rural Missouri students\")."
    },
    "limit": {
      "type": "integer",
      "description": "Maximum number of results (1-25, default 10).",
      "minimum": 1,
      "maximum": 25
    }
  },
  "required": [
    "query"
  ]
}

get_grant

Fetch the full detail of a single grant opportunity by its GrantSonar grant_id (UUID), including synopsis, eligibility, deadlines, and award amounts.

Parameters1

grant_id

string

required

GrantSonar grant UUID (from a search_grants result).

Raw schema

{
  "type": "object",
  "properties": {
    "grant_id": {
      "type": "string",
      "description": "GrantSonar grant UUID (from a search_grants result)."
    }
  },
  "required": [
    "grant_id"
  ]
}

list_my_matches

List YOUR organization's scored grant matches — the same personalized matches shown on your GrantSonar dashboard. Requires your API key. Returns match tier, score, reasons, pipeline status, and a URL per grant.

Parameters3

view	string	optional	Which list (default "matches" = your active personalized feed).
tier	string	optional	Optional: only return matches in this tier.
limit	integer	optional	Max results (default 25).

Raw schema

{
  "type": "object",
  "properties": {
    "view": {
      "type": "string",
      "enum": [
        "matches",
        "saved",
        "pursuing",
        "applied",
        "dismissed"
      ],
      "description": "Which list (default \"matches\" = your active personalized feed)."
    },
    "tier": {
      "type": "string",
      "enum": [
        "top",
        "next_best",
        "worth_a_look",
        "long_shot"
      ],
      "description": "Optional: only return matches in this tier."
    },
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 50,
      "description": "Max results (default 25)."
    }
  }
}

get_my_application

Fetch one of YOUR grant applications (status + every section draft) by application_id or grant_id. Requires your API key.

Parameters2

application_id	string	optional	Application UUID.
grant_id	string	optional	Grant UUID — resolves your application for that grant.

Raw schema

{
  "type": "object",
  "properties": {
    "application_id": {
      "type": "string",
      "description": "Application UUID."
    },
    "grant_id": {
      "type": "string",
      "description": "Grant UUID — resolves your application for that grant."
    }
  }
}

list_my_applications

List YOUR organization's grant applications (id, grant title, status, document type, last updated). Requires your API key.

Parameters

No parameters.

Raw schema

{
  "type": "object",
  "properties": {}
}

save_grant

Save a grant to YOUR pipeline, or set its status to pursuing/applied. Reversible. Requires your API key. Mirrors the dashboard Save button.

Parameters2

grant_id	string	required	Grant UUID (from list_my_matches or search_grants).
status	string	optional	Pipeline status (default "saved").

Raw schema

{
  "type": "object",
  "properties": {
    "grant_id": {
      "type": "string",
      "description": "Grant UUID (from list_my_matches or search_grants)."
    },
    "status": {
      "type": "string",
      "enum": [
        "saved",
        "pursuing",
        "applied"
      ],
      "description": "Pipeline status (default \"saved\")."
    }
  },
  "required": [
    "grant_id"
  ]
}

dismiss_grant

Dismiss a grant from YOUR active feed, or restore it (dismissed=false). Reversible. Requires your API key.

Parameters2

grant_id	string	required	Grant UUID.
dismissed	boolean	optional	true = dismiss (default), false = restore.

Raw schema

{
  "type": "object",
  "properties": {
    "grant_id": {
      "type": "string",
      "description": "Grant UUID."
    },
    "dismissed": {
      "type": "boolean",
      "description": "true = dismiss (default), false = restore."
    }
  },
  "required": [
    "grant_id"
  ]
}

update_application_section

Write content into one section of YOUR grant application (replace or append). Requires your API key. The prior draft is snapshotted to version history first, so this is recoverable. Use get_my_application to see section_keys.

Parameters4

application_id	string	required	Application UUID (from list_my_applications).
section_key	string	required	Which section to write (e.g. "statement_of_need"). See get_my_application.
content	string	required	The text/HTML to write into the section.
mode	string	optional	replace (default) overwrites; append adds to the end.

Raw schema

{
  "type": "object",
  "properties": {
    "application_id": {
      "type": "string",
      "description": "Application UUID (from list_my_applications)."
    },
    "section_key": {
      "type": "string",
      "description": "Which section to write (e.g. \"statement_of_need\"). See get_my_application."
    },
    "content": {
      "type": "string",
      "description": "The text/HTML to write into the section."
    },
    "mode": {
      "type": "string",
      "enum": [
        "replace",
        "append"
      ],
      "description": "replace (default) overwrites; append adds to the end."
    }
  },
  "required": [
    "application_id",
    "section_key",
    "content"
  ]
}

draft_application_section

Generate an AI first-draft for one section of YOUR application, grounded in the funding notice and your org profile, and save it into that section (prior content snapshotted first). Requires a paid API key. This is the only tool that runs the grant writer, so it is metered heavily. Returns the drafted text. Use get_my_application for section_keys.

Parameters3

application_id	string	required	Application UUID.
section_key	string	required	Which section to draft (see get_my_application).
document_type	string	optional	Draft a short Letter of Inquiry ("loi") or a full section ("full"). Defaults to the application's submission stage.

Raw schema

{
  "type": "object",
  "properties": {
    "application_id": {
      "type": "string",
      "description": "Application UUID."
    },
    "section_key": {
      "type": "string",
      "description": "Which section to draft (see get_my_application)."
    },
    "document_type": {
      "type": "string",
      "enum": [
        "loi",
        "full"
      ],
      "description": "Draft a short Letter of Inquiry (\"loi\") or a full section (\"full\"). Defaults to the application's submission stage."
    }
  },
  "required": [
    "application_id",
    "section_key"
  ]
}

Install

Tools (9)

search_grantsget_grantlist_my_matchesget_my_applicationlist_my_applicationssave_grantdismiss_grantupdate_application_section

Remote endpoint

Streamable HTTP

Hosted server - connect over the network, no local install.

url

https://grantsonar.com/api/mcp

Add to VS Code Add to Cursor

claude_desktop_config.json

json

{
  "mcpServers": {
    "grantsonar": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://grantsonar.com/api/mcp"
      ]
    }
  }
}

Desktop config is stdio-only; this bridges via mcp-remote. Native remote: Settings > Connectors.

MCP Server: io.github.romulusfoundry/grantsonar

🛠️ Key Features

🚀 Use Cases

⚡ Developer Benefits

⚠️ Limitations

search_grants

get_grant

list_my_matches

get_my_application

list_my_applications

save_grant

dismiss_grant

update_application_section

draft_application_section

Install

Remote endpoint

Related servers