Small Business Funding Finder

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Searches live federal grant listings on Grants.gov and reads full opportunity details.

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https://mcp.modernmustardseed.com/funding-finder

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eligibility_explainer Read-only

Decode Grants.gov applicant eligibility codes (such as 23, 12 or 99) in plain words: the official label, what it means, who counts, what to watch out for, and the source for each, with an as-of date. Give codes, applicant types (such as small_business), or nothing for the full table of 17 codes. Static reference with no network access. Informational, not legal advice.

codesarray

applicant_typesarray

Tools (4)

eligibility_explainer

read-only

Argument	Type	Description
codes	array
applicant_types	array

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "codes": {
      "type": "array",
      "items": {
        "type": "string",
        "pattern": "^\\d{1,2}$"
      },
      "maxItems": 17,
      "minItems": 1
    },
    "applicant_types": {
      "type": "array",
      "items": {
        "enum": [
          "state_government",
          "county_government",
          "city_or_township_government",
          "special_district_government",
          "independent_school_district",
          "public_higher_education",
          "tribal_government",
          "public_housing_authority",
          "tribal_organization",
          "nonprofit_501c3",
          "nonprofit_other",
          "private_higher_education",
          "individual",
          "for_profit_not_small",
          "small_business",
          "others",
          "unrestricted"
        ],
        "type": "string"
      },
      "maxItems": 17,
      "minItems": 1
    }
  }
}

get_grant

Get one Grants.gov listing in full by opportunity id (the digits at the end of a listing URL) or opportunity number. Returns status, agency, posted and close dates (or forecast dates), award ceiling and floor, total program funding, expected number of awards, cost sharing, every eligible applicant type in plain words, the additional eligibility text, award instruments, categories, Assistance Listings, the agency contact, the description (about 1,500 characters, or 6,000 with detail "full"), document folders and the official URL. Cached for 60 minutes.

read-only

Argument	Type	Description
detail	string	"summary" (default) or "full" for a longer description.
opportunity_id	string
opportunity_number	string	The funding opportunity number, for example NOAA-NMFS-AK-2026-33268 or PA-27-100.

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "detail": {
      "enum": [
        "summary",
        "full"
      ],
      "type": "string",
      "description": "\"summary\" (default) or \"full\" for a longer description."
    },
    "opportunity_id": {
      "type": "string",
      "pattern": "^\\d{1,9}$"
    },
    "opportunity_number": {
      "type": "string",
      "maxLength": 80,
      "minLength": 2,
      "description": "The funding opportunity number, for example NOAA-NMFS-AK-2026-33268 or PA-27-100."
    }
  }
}

grants_closing_soon

List posted Grants.gov opportunities whose application deadline falls within the next 1 to 120 days (default 30), soonest first, with days left counted in Eastern Time. Takes the same keyword, applicant type, category, instrument, agency and Assistance Listing filters as search_grants. Listings with no close date or a placeholder close date are left out.

read-only

Argument	Type	Description
limit	integer	Results to return, 1 to 50. Default 25.
agency	string	An agency code (USDA, HHS-NIH11, DOI-FWS) or name ("Fish and Wildlife", "Rural Business"). A department code includes all of its sub-agencies.
keyword	string	Words to search for in listing titles and text, for example "rural energy" or "STEM education".
categories	array	Grants.gov category codes: AG Agriculture, AR Arts, BC Business and Commerce, CD Community Development, CP Consumer Protection, DPR Disaster Prevention and Relief, ED Education, ELT Employment, Labor and Training, EN Energy, ENV Environment, FN Food and Nutrition, HL Health, HO Housing, HU Humanities, IIJ Infrastructure Investment and Jobs Act, IS Information and Statistics, ISS Income Security and Social Services, LJL Law, Justice and Legal Services, NR Natural Resources, O Other, OZ Opportunity Zone Benefits, RD Regional Development, RT Recreation and Tourism, ST Science and Technology, T Transportation.
eligibility	array	Applicant types to match, such as small_business, nonprofit_501c3, nonprofit_other, tribal_government, city_or_township_government, individual. A listing matches when it is open to any of them.

search_grants

Search live federal funding opportunities on Grants.gov. Results come from Grants.gov, and users must confirm every detail on the official listing before applying; each result carries its listing link. Filter by keyword, applicant type (small businesses, 501(c)(3) and other nonprofits, tribes, local governments, individuals and more), category, award instrument, agency, Assistance Listing number, status (posted by default, or forecasted) and close date range. Returns the total matches and each listing with id, number, title, agency, posted and close dates, days left and URL. Sort by relevance (default with a keyword), closing_soonest (default without one) or newest. Results are cached for 10 minutes.

read-only

Argument	Type	Description
sort	string
limit	integer	Results to return, 1 to 50. Default 20.
agency	string	An agency code (USDA, HHS-NIH11, DOI-FWS) or name ("Fish and Wildlife", "Rural Business"). A department code includes all of its sub-agencies.
offset	integer	Results to skip, for the next page. Default 0.
status	string	posted (open now, default), forecasted (announced but not yet open) or both.
keyword	string	Words to search for in listing titles and text, for example "rural energy" or "STEM education".

{ "type": "object", "$schema": "https://json-schema.org/draft/2020-12/schema", "properties": { "limit": { "type": "integer", "maximum": 50, "minimum": 1, "description": "Results to return, 1 to 50. Default 25." }, "agency": { "type": "string", "maxLength": 120, "minLength": 2, "description": "An agency code (USDA, HHS-NIH11, DOI-FWS) or name (\"Fish and Wildlife\", \"Rural Business\"). A department code includes all of its sub-agencies." }, "keyword": { "type": "string", "maxLength": 200, "minLength": 2, "description": "Words to search for in listing titles and text, for example \"rural energy\" or \"STEM education\"." }, "categories": { "type": "array", "items": { "enum": [ "AG", "AR", "BC", "CD", "CP", "DPR", "ED", "ELT", "EN", "ENV", "FN", "HL", "HO", "HU", "ISS", "IS", "IIJ", "LJL", "NR", "OZ", "O", "RT", "RD", "ST", "T" ], "type": "string" }, "maxItems": 25, "minItems": 1, "description": "Grants.gov category codes: AG Agriculture, AR Arts, BC Business and Commerce, CD Community Development, CP Consumer Protection, DPR Disaster Prevention and Relief, ED Education, ELT Employment, Labor and Training, EN Energy, ENV Environment, FN Food and Nutrition, HL Health, HO Housing, HU Humanities, IIJ Infrastructure Investment and Jobs Act, IS Information and Statistics, ISS Income Security and Social Services, LJL Law, Justice and Legal Services, NR Natural Resources, O Other, OZ Opportunity Zone Benefits, RD Regional Development, RT Recreation and Tourism, ST Science and Technology, T Transportation." }, "eligibility": { "type": "array", "items": { "enum": [ "state_government", "county_government", "city_or_township_government", "special_district_government", "independent_school_district", "public_higher_education", "tribal_government", "public_housing_authority", "tribal_organization", "nonprofit_501c3", "nonprofit_other", "private_higher_education", "individual", "for_profit_not_small", "small_business", "others", "unrestricted" ], "type": "string" }, "maxItems": 17, "minItems": 1, "description": "Applicant types to match, such as small_business, nonprofit_501c3, nonprofit_other, tribal_government, city_or_township_government, individual. A listing matches when it is open to any of them." }, "instruments": { "type": "array", "items": { "enum": [ "grant", "cooperative_agreement", "procurement_contract", "other" ], "type": "string" }, "maxItems": 4, "minItems": 1, "description": "Kinds of award to include." }, "within_days": { "type": "integer", "maximum": 120, "minimum": 1, "description": "Days ahead to look. Default 30." }, "assistance_listing": { "type": "string", "pattern": "^\\d{2}\\.\\d{3}$", "description": "Assistance Listing (formerly CFDA) number, for example 10.868." }, "include_unrestricted": { "type": "boolean", "description": "When eligibility is set, also include Unrestricted (code 99) listings, which are open to any applicant type. Default true." } } }

{ "type": "object", "$schema": "https://json-schema.org/draft/2020-12/schema", "properties": { "sort": { "enum": [ "relevance", "closing_soonest", "newest" ], "type": "string" }, "limit": { "type": "integer", "maximum": 50, "minimum": 1, "description": "Results to return, 1 to 50. Default 20." }, "agency": { "type": "string", "maxLength": 120, "minLength": 2, "description": "An agency code (USDA, HHS-NIH11, DOI-FWS) or name (\"Fish and Wildlife\", \"Rural Business\"). A department code includes all of its sub-agencies." }, "offset": { "type": "integer", "maximum": 5000, "minimum": 0, "description": "Results to skip, for the next page. Default 0." }, "status": { "enum": [ "posted", "forecasted", "posted_and_forecasted" ], "type": "string", "description": "posted (open now, default), forecasted (announced but not yet open) or both." }, "keyword": { "type": "string", "maxLength": 200, "minLength": 2, "description": "Words to search for in listing titles and text, for example \"rural energy\" or \"STEM education\"." }, "categories": { "type": "array", "items": { "enum": [ "AG", "AR", "BC", "CD", "CP", "DPR", "ED", "ELT", "EN", "ENV", "FN", "HL", "HO", "HU", "ISS", "IS", "IIJ", "LJL", "NR", "OZ", "O", "RT", "RD", "ST", "T" ], "type": "string" }, "maxItems": 25, "minItems": 1, "description": "Grants.gov category codes: AG Agriculture, AR Arts, BC Business and Commerce, CD Community Development, CP Consumer Protection, DPR Disaster Prevention and Relief, ED Education, ELT Employment, Labor and Training, EN Energy, ENV Environment, FN Food and Nutrition, HL Health, HO Housing, HU Humanities, IIJ Infrastructure Investment and Jobs Act, IS Information and Statistics, ISS Income Security and Social Services, LJL Law, Justice and Legal Services, NR Natural Resources, O Other, OZ Opportunity Zone Benefits, RD Regional Development, RT Recreation and Tourism, ST Science and Technology, T Transportation." }, "eligibility": { "type": "array", "items": { "enum": [ "state_government", "county_government", "city_or_township_government", "special_district_government", "independent_school_district", "public_higher_education", "tribal_government", "public_housing_authority", "tribal_organization", "nonprofit_501c3", "nonprofit_other", "private_higher_education", "individual", "for_profit_not_small", "small_business", "others", "unrestricted" ], "type": "string" }, "maxItems": 17, "minItems": 1, "description": "Applicant types to match, such as small_business, nonprofit_501c3, nonprofit_other, tribal_government, city_or_township_government, individual. A listing matches when it is open to any of them." }, "instruments": { "type": "array", "items": { "enum": [ "grant", "cooperative_agreement", "procurement_contract", "other" ], "type": "string" }, "maxItems": 4, "minItems": 1, "description": "Kinds of award to include." }, "closes_after": { "type": "string", "pattern": "^\\d{4}-\\d{2}-\\d{2}$", "description": "Only listings closing on or after this date, YYYY-MM-DD." }, "closes_before": { "type": "string", "pattern": "^\\d{4}-\\d{2}-\\d{2}$", "description": "Only listings closing on or before this date, YYYY-MM-DD." }, "assistance_listing": { "type": "string", "pattern": "^\\d{2}\\.\\d{3}$", "description": "Assistance Listing (formerly CFDA) number, for example 10.868." }, "include_unrestricted": { "type": "boolean", "description": "When eligibility is set, also include Unrestricted (code 99) listings, which are open to any applicant type. Default true." } } }