# IRS 990 Nonprofit Data (remote · mcp.olyport.com)

Nonprofit lookup and IRS 990 filing data: revenue, assets, and compensation via ProPublica

- Trust score: 67/100 (medium)
- Change this week: +6
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `mcp.olyport.com`: 67/100 (this document), [markdown](https://verifymcp.io/servers/com-olyport-irs-990/irs-990-mcp.md), [page](https://verifymcp.io/servers/com-olyport-irs-990/irs-990-mcp)

## Channel facts

- Endpoint: `https://mcp.olyport.com/irs-990/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.1.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-08-03.

- **Endpoint Security**: 63/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 3 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 76/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 422 tokens (~140/item across 3 items; 3 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 27/100
  - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 71/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 0% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add --transport http com-olyport-irs-990 https://mcp.olyport.com/irs-990/mcp
```

### Codex

```toml
[mcp_servers.com-olyport-irs-990]
url = "https://mcp.olyport.com/irs-990/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-olyport-irs-990": {
      "type": "remote",
      "url": "https://mcp.olyport.com/irs-990/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-olyport-irs-990 --url https://mcp.olyport.com/irs-990/mcp --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-olyport-irs-990:
    url: "https://mcp.olyport.com/irs-990/mcp"
```

### Other

```json
{
  "mcpServers": {
    "com-olyport-irs-990": {
      "type": "http",
      "url": "https://mcp.olyport.com/irs-990/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-08-03 (score 67, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-08-01 (score 66, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-31 (score 65, +2)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-30 (score 63, +1)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-28 (score 62, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-27 (score 61, +1)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-07-26 (score 60)

First indexed and scored.

## MCP tools (3)

### `search_nonprofits` (~239 tokens)

Search for nonprofit organizations by name or keyword.

    Searches the ProPublica Nonprofit Explorer database of IRS 990 filers.
    Returns organization name, EIN, location, revenue, and tax status.

    Args:
        query: Search keywords (e.g. 'food bank', 'habitat for humanity').
        state: Two-letter state abbreviation to filter by (e.g. 'CA', 'TX').
        ntee_code: NTEE major category code (1-10). 1=Arts, 2=Education,
            3=Environment, 4=Health, 5=Human Services, 6=International,
            7=Public Benefit, 8=Religion, 9=Mutual Benefit, 10=Unknown.
        c_code: IRS subsection code (e.g. 3 for 501(c)(3), 4 for 501(c)(4)).
        page: Zero-indexed page number (25 results per page).

Input parameters:

- `c_code`
- `ntee_code`
- `page` (integer)
- `query` (string, required)
- `state`

Output parameters:

- `result` (string)

### `get_nonprofit_details` (~93 tokens)

Get detailed information about a nonprofit organization by EIN.

    Returns comprehensive data from the organization's IRS 990 filings
    including revenue, expenses, assets, executive compensation, and
    filing history. Use search_nonprofits first to find the EIN.

    Args:
        ein: Employer Identification Number (e.g. '13-1837418' or '131837418').

Input parameters:

- `ein` (string, required)

Output parameters:

- `result` (string)

### `get_nonprofit_filings` (~90 tokens)

Get the filing history for a nonprofit organization.

    Returns a list of all available IRS 990 filings for the organization,
    including both filings with parsed data and those without. Useful for
    tracking financial trends over time.

    Args:
        ein: Employer Identification Number (e.g. '13-1837418' or '131837418').

Input parameters:

- `ein` (string, required)

Output parameters:

- `result` (string)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-olyport-irs-990/irs-990-mcp#diagnostics

## Score history

- 2026-08-03: 67
- 2026-08-02: 66
- 2026-08-01: 66
- 2026-07-31: 65
- 2026-07-30: 63
- 2026-07-29: 62
- 2026-07-28: 62
- 2026-07-27: 61
- 2026-07-26: 60

## Links

- Remote endpoint: https://mcp.olyport.com/irs-990/mcp
- Website: https://olyport.com/
- Changelog RSS feed: https://verifymcp.io/servers/com-olyport-irs-990/irs-990-mcp/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-olyport-irs-990/irs-990-mcp/changelog.json
- HTML version of this page: https://verifymcp.io/servers/com-olyport-irs-990/irs-990-mcp