# GSA CALC+ (pypi · gsa-calc-mcp)

GSA CALC+ awarded labor ceiling rates from more than 230,000 MAS contract records. 8 tools.

- Trust score: 79/100 (medium)
- Change this week: +19
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-20

## Components

- pypi · `gsa-calc-mcp`: 79/100 (this document), [markdown](https://verifymcp.io/servers/com-1102tools-gsa-calc-mcp/gsa-calc-mcp.md), [page](https://verifymcp.io/servers/com-1102tools-gsa-calc-mcp/gsa-calc-mcp)

## Channel facts

- Registry: `pypi`
- Package: `gsa-calc-mcp`
- Version: `1.0.9`
- Transport: `stdio`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, 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 2026-09-20.

- **Supply Chain Security**: 100/100
  - No malware found by supply-chain analysis.
  - No known CVEs affecting this package version or its production dependencies.
  - Runs hatchling.build at install time, a recognised native-build step with no shell scripting around it.
  - 1 of 34 dependencies flagged as unhealthy.
- **Provenance & Transparency**: 45/100
  - Source repository is publicly reachable at the declared URL.
  - Provenance check failed: no build-provenance attestation is published.
  - Clear OSI-approved license (MIT).
  - Actively maintained (last published 6 days ago).
  - Disclosure check failed: no security disclosure policy was found in the source repository.
- **Schema Quality & AI Usability**: 63/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 1589 tokens (~198/item across 8 items; 8 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 90/100
  - Stability observed for 27 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.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 8 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 8 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a current MCP spec version (2026-07-28).

## Install

### How do I install the GSA CALC+ MCP server?

GSA CALC+ runs locally as a PyPI package, launched with uvx gsa-calc-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add com-1102tools-gsa-calc-mcp -- uvx gsa-calc-mcp
```

### Cursor

```json
{
  "mcpServers": {
    "com-1102tools-gsa-calc-mcp": {
      "command": "uvx",
      "args": [
        "gsa-calc-mcp"
      ]
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-1102tools-gsa-calc-mcp": {
      "command": "uvx",
      "args": [
        "gsa-calc-mcp"
      ]
    }
  }
}
```

### Codex

```bash
codex mcp add com-1102tools-gsa-calc-mcp -- uvx gsa-calc-mcp
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-1102tools-gsa-calc-mcp": {
      "type": "local",
      "command": [
        "uvx",
        "gsa-calc-mcp"
      ],
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-1102tools-gsa-calc-mcp --command uvx --arg gsa-calc-mcp
```

### Hermes

```yaml
mcp_servers:
  com-1102tools-gsa-calc-mcp:
    command: "uvx"
    args: ["gsa-calc-mcp"]
```

### Netclaw

```json
{
  "McpServers": {
    "com-1102tools-gsa-calc-mcp": {
      "Transport": "stdio",
      "Command": "uvx",
      "Arguments": [
        "gsa-calc-mcp"
      ]
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-1102tools-gsa-calc-mcp -t stdio -c uvx -a gsa-calc-mcp
```

### Other

```json
{
  "mcpServers": {
    "com-1102tools-gsa-calc-mcp": {
      "command": "uvx",
      "args": [
        "gsa-calc-mcp"
      ]
    }
  }
}
```

## 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.

### 2026-09-20 (score 79, +1)

No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-18 (score 78, +1)

No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-16 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-15 (score 76, +15)

- [security improvement] Malware scan: unverified → pass

### 2026-09-14 (score 61, +1)

No change was recorded against any check on this day. Stability & Change Management went from 67 to 70. That category is still filling its 30-day observation window: 20 days of observed history at the previous scan, 21 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-13 (score 60, −15)

- [security regression] Malware scan: pass → unverified
- [functional] Package version: 1.0.5 → 1.0.9
- [functional] Package version: 1.0.5 → 1.0.8
- [functional] Package version: 1.0.5 → 1.0.7

### 2026-09-12 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 60 to 63. That category is still filling its 30-day observation window: 18 days of observed history at the previous scan, 19 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-10 (score 74, +1)

No change was recorded against any check on this day. Stability & Change Management went from 53 to 57. That category is still filling its 30-day observation window: 16 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (8)

### `keyword_search` (~434 tokens)

Search GSA CALC+ ceiling rates by keyword.

Performs wildcard matching across labor_category, vendor_name, and
idv_piid fields. This is the primary search tool for finding rates.

Returns matching rate records plus aggregation statistics (wage_stats,
percentiles, education breakdown, business size) covering the FULL
result set even when individual hits are capped at 10,000.

Important notes:
\- These are NTE (not-to-exceed) ceiling rates, not prices paid
\- Rates are fully burdened hourly rates from GSA MAS contracts
\- Data refreshes nightly from vendor price proposal tables
\- Use P50 from percentiles for median (more accurate than median_price)

Filter parameters:
\- education_level: AA, BA, HS, MA, PHD, TEC (pipe-delimited for OR: 'BA|MA')
\- experience_min/max: years of experience range
\- price_min/max: hourly rate range in USD
\- business_size: 'S' (small) or 'O' (other/large)
\- security_clearance: 'yes' or 'no'
\- sin: Special Item Number (e.g., '54151S' for IT Professional Services)
\- worksite: NOT supported (the v3 API silently ignores it; passing a
  value raises so callers are not handed unfiltered data)

ordering: current_price, labor_category, vendor_name, education_level,
min_years_experience, next_year_price, idv_piid, business_size.
sort: 'asc' or 'desc'.

exclude: pipe-delimited hit _id values to exclude from results and stats.

Input parameters:

- `business_size`
- `education_level`
- `exclude`
- `experience_max`
- `experience_min`
- `keyword` (string, required)
- `ordering` (string)
- `page` (integer)
- `page_size` (integer)
- `price_max`
- `price_min`
- `security_clearance`
- `sin`
- `sort` (string)
- `worksite`

### `exact_search` (~147 tokens)

Exact match search on a specific field.

Use suggest_contains() first to discover the exact field value, then
pass it here. The API requires exact string matching -- partial matches
return 0 results.

Fields: labor_category, vendor_name, idv_piid (GSA MAS contract number).

Input parameters:

- `business_size`
- `education_level`
- `experience_max`
- `experience_min`
- `field` (string, required)
- `ordering` (string)
- `page` (integer)
- `page_size` (integer)
- `price_max`
- `price_min`
- `sort` (string)
- `value` (string, required)

### `suggest_contains` (~113 tokens)

Discover exact field values via autocomplete/contains matching.

Returns aggregation buckets showing matching values and their record
counts. Use this BEFORE exact_search() to find the right value string.

Minimum 2 characters required for the search term.

Example workflow:
1\. suggest_contains('vendor_name', 'booz') -> finds 'Booz Allen Hamilton Inc.'
2\. exact_search('vendor_name', 'Booz Allen Hamilton Inc.') -> all their rates

Input parameters:

- `field` (string, required)
- `term` (string, required)

### `filtered_browse` (~140 tokens)

Browse rates with filters only (no search keyword).

Useful for market segment statistics: "what do all BA-level rates with
5-15 years experience look like across all of GSA MAS?" Returns rate
records plus full aggregation statistics.

Input parameters:

- `business_size`
- `education_level`
- `experience_max`
- `experience_min`
- `ordering` (string)
- `page` (integer)
- `page_size` (integer)
- `price_max`
- `price_min`
- `security_clearance`
- `sin`
- `sort` (string)
- `worksite`

### `igce_benchmark` (~163 tokens)

Get ceiling rate benchmarks for IGCE development.

Returns statistical summary for a labor category: count, min, max, avg,
median, standard deviation, percentile distribution (P10-P90), education
breakdown, and outlier bounds.

This is the primary tool for building Independent Government Cost
Estimates. The returned statistics represent the market distribution
of GSA MAS ceiling rates for comparable labor categories.

Reminder: these are ceiling rates (max a contractor can charge), not
prices paid. Actual task order rates should be lower per FAR 8.405-2(d).

Input parameters:

- `business_size`
- `education_level`
- `experience_max`
- `experience_min`
- `labor_category` (string, required)
- `sin`

### `price_reasonableness_check` (~152 tokens)

Evaluate a proposed hourly rate against GSA ceiling rate distribution.

Returns the benchmark statistics plus a positioning analysis: z-score,
comparison to median, IQR position, and delta from average.

Use this for FAR 15.404-1 price analysis: is the proposed rate within
the expected range for comparable labor categories on GSA MAS?

A rate above P75 may be high; above P90 warrants scrutiny. A rate below
P25 may indicate an unrealistically low offer (potential performance risk).

Input parameters:

- `business_size`
- `education_level`
- `experience_max`
- `experience_min`
- `labor_category` (string, required)
- `proposed_rate` (number, required)

### `vendor_rate_card` (~315 tokens)

Get ceiling rates for a specific vendor, one page at a time.

Auto-discovers the exact vendor name via suggest-contains, then pulls
their rate records. Returns labor categories, rates, education levels,
experience requirements, SINs, and contract numbers.

Pass a partial name (e.g., 'booz' for Booz Allen Hamilton). The tool
finds the exact registered name automatically.

Large vendors span many pages: Booz Allen Hamilton carries ~1,900 labor
categories. The default page_size is 100 (~23KB) because a 500-row page
for a vendor that size is ~114KB and overflows MCP client output limits.
Rows are ordered by labor_category ascending by default, so a partial
card is alphabet-biased; check has_more and keep calling with next_page
until it is false before treating the card as complete.

There is no server-side way to intersect a vendor with a labor-category
keyword (the v3 API ignores vendor_name and labor_category as filter
fields; live-verified). To find specific categories, page through the
full card and match client-side.

If the discovery term matches multiple vendors, this tool picks the one
with the most rate records and returns a _candidates list so the caller
can re-query with a more specific term if needed.

Input parameters:

- `ordering` (string)
- `page` (integer)
- `page_size` (integer)
- `sort` (string)
- `vendor_name` (string, required)

### `sin_analysis` (~125 tokens)

Get rate distribution and statistics for a specific SIN.

Returns rate statistics, education breakdown, business size breakdown,
and sample records for a GSA MAS Special Item Number.

Common SINs for professional services (live-verified to return records):
\- 54151S: IT Professional Services
\- 541611: Management and Financial Consulting
\- 541715: Engineering R&D
\- 541330ENG: Engineering Services
\- 561210FAC: Facilities Maintenance and Management
\- 611430: Training

Input parameters:

- `page_size` (integer)
- `sin_code` (required)

## Diagnostics

Captured diagnostic sections: Provenance, Install scripts, Dependencies. The full working is on the page: https://verifymcp.io/servers/com-1102tools-gsa-calc-mcp/gsa-calc-mcp#diagnostics

## Score history

- 2026-09-20: 79
- 2026-09-19: 78
- 2026-09-18: 78
- 2026-09-17: 77
- 2026-09-16: 77
- 2026-09-15: 76
- 2026-09-14: 61
- 2026-09-13: 60
- 2026-09-12: 75
- 2026-09-11: 74
- 2026-09-10: 74
- 2026-09-09: 73
- 2026-09-08: 73
- 2026-09-07: 73
- 2026-09-06: 72
- 2026-09-05: 72
- 2026-09-04: 71
- 2026-09-03: 71
- 2026-09-02: 70
- 2026-09-01: 70
- 2026-08-31: 69
- 2026-08-30: 66
- 2026-08-29: 66
- 2026-08-28: 66
- 2026-08-27: 66
- 2026-08-26: 66
- 2026-08-25: 64
- 2026-08-24: 64

## Common questions

### What is the GSA CALC+ MCP server?

GSA CALC+ is an MCP server listed in the public MCP registry as com.1102tools/gsa-calc-mcp. GSA CALC+ awarded labor ceiling rates from more than 230,000 MAS contract records. 8 tools. This page covers its PyPI package (gsa-calc-mcp).

### Is the GSA CALC+ MCP server safe to use?

GSA CALC+ scores 79 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 20 September 2026. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the GSA CALC+ MCP server expose?

GSA CALC+ exposes 8 tools: keyword_search, exact_search, suggest_contains, filtered_browse, igce_benchmark, and 3 more. Their descriptions and schemas cost roughly 1,589 tokens of context every time the server is loaded.

### Is the GSA CALC+ MCP server still maintained?

GSA CALC+ is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

### What licence is the GSA CALC+ MCP server under?

GSA CALC+ declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.

## Links

- PyPI project: https://pypi.org/project/gsa-calc-mcp/
- Socket report: https://socket.dev/pypi/package/gsa-calc-mcp
- Repository: https://github.com/1102tools-dev/federal-contracting-mcps
- Website: https://1102tools.com/
- Changelog RSS feed: https://verifymcp.io/servers/com-1102tools-gsa-calc-mcp/gsa-calc-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-1102tools-gsa-calc-mcp/gsa-calc-mcp.json
- HTML version of this page: https://verifymcp.io/servers/com-1102tools-gsa-calc-mcp/gsa-calc-mcp