# GroundTruth — subsurface scan QA & trade estimating (remote · gtfi.ai)

Two independent AI models read a GPR, locate or pipe scan and flag the do-not-core call.

- Trust score: 66/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `gtfi.ai`: 66/100 (this document), [markdown](https://verifymcp.io/servers/ai-gtfi-groundtruth/gtfi.md), [page](https://verifymcp.io/servers/ai-gtfi-groundtruth/gtfi)

## Channel facts

- Endpoint: `https://gtfi.ai/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.1`

## 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**: 57/100
  - 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.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - 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**: 70/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 545 tokens (~181/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**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **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 ai-gtfi-groundtruth https://gtfi.ai/mcp
```

### Codex

```toml
[mcp_servers.ai-gtfi-groundtruth]
url = "https://gtfi.ai/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ai-gtfi-groundtruth": {
      "type": "remote",
      "url": "https://gtfi.ai/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add ai-gtfi-groundtruth --url https://gtfi.ai/mcp --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  ai-gtfi-groundtruth:
    url: "https://gtfi.ai/mcp"
```

### Other

```json
{
  "mcpServers": {
    "ai-gtfi-groundtruth": {
      "type": "http",
      "url": "https://gtfi.ai/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 66, +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 65, +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 64, 0)

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

### 2026-07-29 (score 64, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-28 (score 63, +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 62, 0)

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

### 2026-07-26 (score 62)

First indexed and scored.

## MCP tools (3)

### `read_scan` (~240 tokens)

Get an independent AI second opinion on a subsurface scan before anyone cores or digs. Send a public image URL of a GPR scan, a marked-up concrete slab photo, a utility-locate markup, a concrete radiograph, or a CCTV pipe frame. TWO different AI models read it independently — the second is prompted to refute the first — and you get back every located target with its hazard class (do-not-core / rebar / verify / clear), plus a QA flag when the two reads disagree. Advisory only: a certified technician must review and sign off before any cutting.

Input parameters:

- `discipline` (string): One of: gpr (concrete scanning), locate (utility locating), pipe (CCTV sewer), xray (concrete radiograph), milestone (FL SB 4-D condo concrete). Defaults to gpr.
- `field_note` (string): Optional: what the technician said on site. Used as context for names and depths only — it can never clear a hazard the image shows.
- `image_url` (string, required): Public https URL to a JPEG or PNG of the scan or the marked-up surface. Max 8 MB.

### `draft_estimate` (~158 tokens)

Turn a plain-English description of a trade job into a professional itemized bid — real materials by size, fittings, consumables and labor on its own line, at realistic US market prices. Built for one-truck electrical, plumbing, HVAC and general-contracting shops. This is GruntPay: the contractor normally speaks this into their phone. Returns the line items plus a link to brand it and send it to the customer.

Input parameters:

- `job_description` (string, required): What the contractor did or will do, in plain words. e.g. "Replaced the panel, 85 feet of conduit, 8 can lights, 16 hours."
- `trade` (string): electrical, plumbing, hvac, or general. Defaults to general.

### `get_pricing` (~35 tokens)

Current GroundTruth and GruntPay plans and prices. Free to call — use it before answering any cost question rather than guessing.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/ai-gtfi-groundtruth/gtfi#diagnostics

## Score history

- 2026-08-03: 66
- 2026-08-02: 65
- 2026-08-01: 65
- 2026-07-31: 64
- 2026-07-30: 64
- 2026-07-29: 64
- 2026-07-28: 63
- 2026-07-27: 62
- 2026-07-26: 62

## Links

- Remote endpoint: https://gtfi.ai/mcp
- Repository: https://github.com/Dranos-Bot/groundtruth-mcp
- Website: https://gtfi.ai/for-agents
- Changelog RSS feed: https://verifymcp.io/servers/ai-gtfi-groundtruth/gtfi/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/ai-gtfi-groundtruth/gtfi/changelog.json
- HTML version of this page: https://verifymcp.io/servers/ai-gtfi-groundtruth/gtfi