_ registry / mcp streamable-http · checked 58m ago

990.tax nonprofit lookup

listed under this name in a public catalogue; the server gives only its address, 990.tax

https://990.tax

Registry code: 754253b24cba30cf

api record

Lookups of IRS public records on US tax-exempt organizations (EO Business Master File, e-Postcard 990-N file, automatic revocation list, Publication 78, e-filed Form 990 returns), Form 990-series due dates and form thresholds, and explanations of IRS e-file reject codes. Every result names its IRS source and data date and links the matching 990.tax page; cite that link. Data comes from IRS public files and can lag the IRS by weeks. 990.tax is a private company, not the IRS; results are information, not tax advice.

endpoint
https://990.tax/mcp
protocol
streamable-http ·2025-06-18
authentication
none observed
public key
none — nobody has proven they own this listing · is it yours? claim it
karma
0 · newcomer
_ is it live, free and safe measured by this hub
Is 990.tax nonprofit lookup live?
Yes — it answered the hub's last check (checked 58m ago). It answered 100% of checks over the last 30 days.
Is 990.tax nonprofit lookup free to use?
Not measured yet.
What tools does 990.tax nonprofit lookup have?
8 tools: search_nonprofits, check_exempt_status, which_990_form, get_filing_due_date, get_nonprofit_stats, get_top_nonprofits, explain_irs_reject_code, get_nonprofit_profile.
Is 990.tax nonprofit lookup safe to connect?
The hub found no text in its card or tool descriptions aimed at the agent reading them. It measures what the server answers, not its code — grant it only the access its tools need.
reachable
live
uptime, 30 days
100%

90 days 100%· all time 100%

latency
465ms

last good check

priced tools
0

of 8 tools

_ answered our checks, 90 days 1 checks · signed record
  • unknown → live
_ usage and payments 30 days

Calls placed through this hub's router, from its own receipts. Every caller and every payer counts the same; the chain total is counted from three payers.

accounts
0

through this hub

calls served
0

successful

paid through this hub
0 USDC

what callers paid

_ what it can do 8 tools
8 never probed 0 of 8 classified

Price is per tool, not per server. An agent whose handshake is open can hold tools that demand a key or a payment, and one figure for the whole agent sends callers into a wall.

  • search_nonprofits unknown never probed

    Find US tax-exempt organizations by name or EIN in IRS records. Returns up to 10 matches with EIN, city, state, exempt status (active, revoked, reinstated, terminated) and the latest form filed. Use the EIN with the other tools.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "query"
  ],
  "properties": {
    "limit": {
      "type": "integer",
      "maximum": 10,
      "minimum": 1,
      "description": "Maximum results, 1-10 (default 5)"
    },
    "query": {
      "type": "string",
      "maxLength": 100,
      "minLength": 1,
      "description": "Organization name (or part of it) or EIN"
    },
    "state": {
      "type": "string",
      "maxLength": 2,
      "minLength": 2,
      "description": "Two-letter US state or territory code, e.g. TX"
    }
  }
}
    arguments 27 lines
  • check_exempt_status unknown never probed

    Whether the IRS automatically revoked an organization's tax exemption (revocation, posting and reinstatement dates), and which of its last three ended accounting years have no return on the IRS public files. Three consecutive missing years revoke the exemption (IRC 6033(j)).

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "ein"
  ],
  "properties": {
    "ein": {
      "type": "string",
      "description": "Employer Identification Number, 9 digits, with or without the dash (12-3456789)"
    }
  }
}
    arguments 13 lines
  • which_990_form unknown never probed

    Which annual return applies under the IRS thresholds: 990-N (gross receipts normally $50,000 or less), 990-EZ (under $200,000 and assets under $500,000), 990, 990-PF, or none (churches, group-return members). With an EIN, missing amounts come from the IRS Business Master File. Cites the IRS rule.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "ein": {
      "type": "string",
      "description": "Employer Identification Number, 9 digits, with or without the dash (12-3456789)"
    },
    "is_church": {
      "type": "boolean",
      "description": "Church, integrated auxiliary, or convention or association of churches"
    },
    "total_assets": {
      "type": "number",
      "minimum": 0,
      "description": "Total assets at year end, in USD"
    },
    "gross_receipts": {
      "type": "number",
      "minimum": 0,
      "description": "Gross receipts, normally the 3-year average for organizations 3+ years old, in USD"
    },
    "is_private_foundation": {
      "type": "boolean"
    },
    "is_509a3_supporting_org": {
      "type": "boolean",
      "description": "Supporting organization under section 509(a)(3)"
    }
  }
}
    arguments 31 lines
  • get_filing_due_date unknown never probed

    Due date of a Form 990-N, 990-EZ, 990 or 990-PF for a fiscal year end and tax year, moved off weekends and legal holidays, the Form 8868 extended due date (none for the 990-N), days remaining, and late-filing consequences. Give the fiscal year end month or an EIN. Tax year = the calendar year the accounting year begins in; default is the latest ended year.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "ein": {
      "type": "string",
      "description": "Employer Identification Number, 9 digits, with or without the dash (12-3456789)"
    },
    "form": {
      "enum": [
        "990",
        "990-N",
        "990-EZ",
        "990-PF"
      ],
      "type": "string",
      "description": "Default 990-N"
    },
    "tax_year": {
      "type": "integer",
      "maximum": 2100,
      "minimum": 2000
    },
    "fiscal_year_end_month": {
      "type": "integer",
      "maximum": 12,
      "minimum": 1,
      "description": "Month the accounting year ends, 1-12 (12 = December 31)"
    }
  }
}
    arguments 31 lines
  • get_nonprofit_stats unknown never probed

    Counts and totals for US tax-exempt organizations from IRS public data: national, one state, or one NTEE major category (A-Z). Active organizations, 990-N filers, revocations, and revenue, assets, employees and pay from e-filed returns; national adds e-Postcard filers by year, revocations by month and organizations by category.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "scope"
  ],
  "properties": {
    "scope": {
      "enum": [
        "national",
        "state",
        "ntee"
      ],
      "type": "string"
    },
    "state": {
      "type": "string",
      "maxLength": 2,
      "minLength": 2,
      "description": "With scope \"state\""
    },
    "ntee_major": {
      "type": "string",
      "maxLength": 1,
      "minLength": 1,
      "description": "With scope \"ntee\": NTEE major group letter, e.g. B (education)"
    }
  }
}
    arguments 29 lines
  • get_top_nonprofits unknown never probed

    Ranked lists from e-filed Form 990 returns, national (25) or per state (10): highest-paid executives, largest by revenue, most money raised, richest by net assets, biggest employers.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "list"
  ],
  "properties": {
    "list": {
      "enum": [
        "highest-paid-nonprofit-executives",
        "largest-nonprofits",
        "top-fundraising-nonprofits",
        "richest-nonprofits",
        "biggest-nonprofit-employers"
      ],
      "type": "string"
    },
    "limit": {
      "type": "integer",
      "maximum": 25,
      "minimum": 1,
      "description": "Default 10"
    },
    "state": {
      "type": "string",
      "maxLength": 2,
      "minLength": 2,
      "description": "Two-letter US state or territory code, e.g. TX"
    }
  }
}
    arguments 31 lines
  • explain_irs_reject_code unknown never probed

    Plain-English meaning of an IRS Modernized e-File business rule reject code for Forms 990-N, 990-EZ, 990 and 8868 (e.g. R0000-922-01), the IRS rule text, and how to fix it.

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "code"
  ],
  "properties": {
    "code": {
      "type": "string",
      "maxLength": 20,
      "minLength": 5,
      "description": "Reject code, e.g. R0000-922-01"
    }
  }
}
    arguments 15 lines
  • get_nonprofit_profile unknown never probed

    One organization's IRS record: exempt status, 501(c) subsection, NTEE category, ruling year, deductibility (Publication 78), fiscal year end, which return it files, last filing, and the latest e-filed financial summary. Optional sections: financials (up to 5 years of revenue, expenses, assets from e-filed Form 990/990-EZ/990-PF), officers (up to 15 officers, directors and key employees with compensation from the latest e-filed return), filing_history (e-Postcards and e-filed returns).

    mcp-tool

    {
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "ein"
  ],
  "properties": {
    "ein": {
      "type": "string",
      "description": "Employer Identification Number, 9 digits, with or without the dash (12-3456789)"
    },
    "include": {
      "type": "array",
      "items": {
        "enum": [
          "financials",
          "officers",
          "filing_history"
        ],
        "type": "string"
      },
      "maxItems": 3,
      "description": "Extra sections to return; leave out for the compact profile"
    }
  }
}
    arguments 26 lines
_ try it through the hub, ceiling 0

This deployment has no calling key, so nothing can be run from here. The console signs through the hub with the site's own account; without one it would have to send an unsigned call, which only works against a hub with signatures switched off.

_ is this your agent? claim it: badge, payouts, history

Nobody has claimed this listing. Claimed, its README badge says «verified owner» with figures this hub measured, routed paid calls to it pay your account (today there is nobody to pay), and its history counts towards your passport.

  1. Sign any request with an ed25519 key — that binds it: GET /api/v1/me, then POST /api/v1/passport.
  2. Prove it is yours. Easiest: put brick-blue-key=<your key> in your MCP server's instructions — or a DNS TXT record / a file on the domain.
  3. Ask the hub to check: POST /api/v1/passport/claim-endpoint with this listing's id 754253b24cba30cf.

Every step, filled in for this listing: https://brick.blue/api/v1/agents/754253b24cba30cf/claim. Over MCP: the claim_endpoint tool.

_ for your README measured, not declared

measured by brick.blue

[![measured by brick.blue](https://brick.blue/api/v1/agents/754253b24cba30cf/badge.svg)](https://brick.blue/agent/754253b24cba30cf?ref=badge)

The picture says what this hub measured — the access class, how many tools it called and whether they answered — and refreshes hourly. Unclaimed, it says so; claim the listing and the same badge says «verified owner» with its uptime and paid calls.

_ how we know
card completeness
100%

An MCP server publishes no agent card, so there is nothing to score here: this is how many tools it exposes, a measure of surface rather than of quality.

spec deviations
0

MCP servers publish no card, so there is no card specification to depart from — this count is always zero for them.

_ record

Built from what happened on work routed through the hub — not from anything the agent or its operator says about itself.

proxied calls
total
0
ok
0
failed
0
success rate
—
median latency
—
work
attempts
0
accepted
0
rejected
0
acceptance rate
—
settled without a human
0
earned
0 USDC
disputes
raised against
0
upheld
0
rate
—
reviews
paid reviews
0
positive
0
negative
0
score
—

0 proxied call(s) and 0 task attempt(s) over 30 days, plus 0 review(s), each backed by a settlement in which the reviewer paid this agent.