# xmp4 — Semantic code knowledge for your stack (remote · mcp.example4.ai)

OSS libs in your stack, really used: source, tests, callers. C#, Java, TS, Python, Rust, PHP+.

- Trust score: 60/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `mcp.example4.ai`: 60/100 (this document), [markdown](https://verifymcp.io/servers/ai-example4-xmp4/mcp.md), [page](https://verifymcp.io/servers/ai-example4-xmp4/mcp)

## Channel facts

- Endpoint: `https://mcp.example4.ai/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.2.6`

## 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**: 54/100
  - 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 16 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 not yet verified: we couldn't determine whether a plaintext access path exists.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC is configured correctly; the domain's records validate against the full chain to the root.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 63/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 3380 tokens (~211/item across 16 items; 16 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**: 40/100
  - Spec-recency check failed: implements MCP spec 2025-03-26; the latest is 2026-07-28.

## Install

### Claude

```bash
claude mcp add --transport http ai-example4-xmp4 https://mcp.example4.ai/mcp
```

### Codex

```toml
[mcp_servers.ai-example4-xmp4]
url = "https://mcp.example4.ai/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ai-example4-xmp4": {
      "type": "remote",
      "url": "https://mcp.example4.ai/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add ai-example4-xmp4 --url https://mcp.example4.ai/mcp --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  ai-example4-xmp4:
    url: "https://mcp.example4.ai/mcp"
```

### Other

```json
{
  "mcpServers": {
    "ai-example4-xmp4": {
      "type": "http",
      "url": "https://mcp.example4.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.

### 2026-08-02 (score 60, +1)

No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-07-31 (score 59, 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 59, +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 58, +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 57, 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 57)

First indexed and scored.

## MCP tools (16)

### `xmp4_callees` (~258 tokens)

Find direct callees (methods called by) a symbol in a project. Navigate step-by-step by calling xmp4_callees again on interesting results.

Input parameters:

- `docs` (string): Include docs: none (default) | summary | full (xmp4_info only)
- `file_path` (string): File path to disambiguate
- `output_format` (string): Output format: Compact (default) or Verbose
- `page` (integer): Page number (1-based, default 1; ignored by xmp4_info/xmp4_source)
- `page_size` (integer): Results per page (default 20, max 100)
- `project` (string, required): Project id: 'repo/project' or 'repo/project/language'. Case-insensitive prefix match. Append '/Python'|'/CSharp'|'/Java'|etc. only to disambiguate multi-language projects (e.g. 'django/Django/Python'…
- `symbol_name` (string, required): Symbol name

### `xmp4_callers` (~251 tokens)

Find direct callers of a symbol in a project. Navigate step-by-step by calling xmp4_callers again on interesting results.

Input parameters:

- `docs` (string): Include docs: none (default) | summary | full (xmp4_info only)
- `file_path` (string): File path to disambiguate
- `output_format` (string): Output format: Compact (default) or Verbose
- `page` (integer): Page number (1-based, default 1; ignored by xmp4_info/xmp4_source)
- `page_size` (integer): Results per page (default 20, max 100)
- `project` (string, required): Project id: 'repo/project' or 'repo/project/language'. Case-insensitive prefix match. Append '/Python'|'/CSharp'|'/Java'|etc. only to disambiguate multi-language projects (e.g. 'django/Django/Python'…
- `symbol_name` (string, required): Symbol name

### `xmp4_deps` (~173 tokens)

List external dependencies of a project.

Input parameters:

- `output_format` (string): Output format: Compact (default) or Verbose
- `page` (integer): Page number (1-based, default 1)
- `page_size` (integer): Results per page (default 20, max 100)
- `project` (string, required): Project id: 'repo/project' or 'repo/project/language'. Case-insensitive prefix match. Append '/Python'|'/CSharp'|'/Java'|etc. only to disambiguate multi-language projects (e.g. 'django/Django/Python'…

### `xmp4_grep` (~341 tokens)

Server-side regex text search over indexed project source files. Free tier: requires file_path (single file). Premium tier (XMP4_PREMIUM_GREP_WALK=true): allows file_glob multi-file walk. Prefer xmp4_tests_for/xmp4_usages for SCIP symbols — grep is for text not indexed (comments, literals, config keys).

Input parameters:

- `case_sensitive` (boolean): If true, search is case-sensitive (default false)
- `file_glob` (string): Optional file glob for multi-file walk (premium tier). Set XMP4_PREMIUM_GREP_WALK=true to enable.
- `file_path` (string): Single-file grep target, repo-relative (e.g. 'src/foo.rs'). Required in free tier.
- `max_results` (integer): Maximum number of hits to collect before pagination (default 50, max 1000)
- `page` (integer): Page number (1-based, default 1)
- `page_size` (integer): Results per page (default 20, max 100)
- `pattern` (string, required): Regex pattern (case-insensitive by default)
- `project` (string, required): Project id: 'repo/project' or 'repo/project/language'. Case-insensitive prefix match. Append '/Python'|'/CSharp'|'/Java'|etc. only to disambiguate multi-language projects (e.g. 'django/Django/Python'…

### `xmp4_guide` (~28 tokens)

Usage guide for xmp4 tools — read this first to learn the correct workflow

### `xmp4_hierarchy` (~242 tokens)

Get type hierarchy (base, interfaces, derived) for a symbol in a project.

Input parameters:

- `docs` (string): Include docs: none (default) | summary | full (xmp4_info only)
- `file_path` (string): File path to disambiguate
- `output_format` (string): Output format: Compact (default) or Verbose
- `page` (integer): Page number (1-based, default 1; ignored by xmp4_info/xmp4_source)
- `page_size` (integer): Results per page (default 20, max 100)
- `project` (string, required): Project id: 'repo/project' or 'repo/project/language'. Case-insensitive prefix match. Append '/Python'|'/CSharp'|'/Java'|etc. only to disambiguate multi-language projects (e.g. 'django/Django/Python'…
- `symbol_name` (string, required): Symbol name

### `xmp4_info` (~234 tokens)

Get detailed information about a symbol in a project.

Input parameters:

- `docs` (string): Include docs: none (default) | summary | full (xmp4_info only)
- `file_path` (string): File path to disambiguate
- `output_format` (string): Output format: Compact (default) or Verbose
- `page` (integer): Page number (1-based, default 1; ignored by xmp4_info/xmp4_source)
- `page_size` (integer): Results per page (default 20, max 100)
- `project` (string, required): Project id: 'repo/project' or 'repo/project/language'. Case-insensitive prefix match. Append '/Python'|'/CSharp'|'/Java'|etc. only to disambiguate multi-language projects (e.g. 'django/Django/Python'…
- `symbol_name` (string, required): Symbol name

### `xmp4_outline` (~188 tokens)

Get outline (all symbols) for a file in a project.

Input parameters:

- `file_path` (string, required): File path
- `output_format` (string): Output format: Compact (default) or Verbose
- `page` (integer): Page number (1-based, default 1)
- `page_size` (integer): Results per page (default 20, max 100)
- `project` (string, required): Project id: 'repo/project' or 'repo/project/language'. Case-insensitive prefix match. Append '/Python'|'/CSharp'|'/Java'|etc. only to disambiguate multi-language projects (e.g. 'django/Django/Python'…

### `xmp4_projects` (~118 tokens)

Search and browse projects by language and name. Use this first to discover projects, then use other tools with the repo name.

Input parameters:

- `language` (string): Filter by language (e.g., Python, TypeScript, CSharp)
- `page` (integer): Page number (1-based, default 1)
- `page_size` (integer): Results per page (default 20, max 100)
- `query` (string): Search by project name (case-insensitive contains)
- `repo` (string): Filter by repository name

### `xmp4_search` (~243 tokens)

Search symbols in a project. Use xmp4_projects first to find the project identifier.

Input parameters:

- `kind` (string): Filter by kind: Class, Method, Function, etc.
- `max_results` (integer): Maximum results to return (default: 50). Kept as per-page upper bound alongside page_size.
- `output_format` (string): Output format: Compact (default) or Verbose
- `page` (integer): Page number (1-based, default 1)
- `page_size` (integer): Results per page (default 20, max 100)
- `project` (string, required): Project id: 'repo/project' or 'repo/project/language'. Case-insensitive prefix match. Append '/Python'|'/CSharp'|'/Java'|etc. only to disambiguate multi-language projects (e.g. 'django/Django/Python'…
- `query` (string, required): Search query (symbol name or pattern)

### `xmp4_server` (~19 tokens)

Get server information, version, and capabilities

### `xmp4_source` (~234 tokens)

Extract source code for a symbol in a project.

Input parameters:

- `docs` (string): Include docs: none (default) | summary | full (xmp4_info only)
- `file_path` (string): File path to disambiguate
- `output_format` (string): Output format: Compact (default) or Verbose
- `page` (integer): Page number (1-based, default 1; ignored by xmp4_info/xmp4_source)
- `page_size` (integer): Results per page (default 20, max 100)
- `project` (string, required): Project id: 'repo/project' or 'repo/project/language'. Case-insensitive prefix match. Append '/Python'|'/CSharp'|'/Java'|etc. only to disambiguate multi-language projects (e.g. 'django/Django/Python'…
- `symbol_name` (string, required): Symbol name

### `xmp4_symbol_at` (~222 tokens)

LSP-style position→symbol lookup. Given (file_path, line, column) returns the symbol whose occurrence covers that cursor position. line is 1-based; column is 0-based. Use after xmp4_outline/xmp4_view when you know coordinates and want the canonical symbol.

Input parameters:

- `column` (integer): Column number (0-based, default 0 = beginning of line)
- `file_path` (string, required): File path inside the project, relative to repo root
- `line` (integer): Line number (1-based)
- `project` (string, required): Project id: 'repo/project' or 'repo/project/language'. Case-insensitive prefix match. Append '/Python'|'/CSharp'|'/Java'|etc. only to disambiguate multi-language projects (e.g. 'django/Django/Python'…

### `xmp4_tests_for` (~295 tokens)

Find direct tests that exercise a given symbol (direct callers filtered to test-file candidates per language pattern: CSharp/Java/PHP: *Test(s).<ext>; Python: test_*.py / *_test.py; TypeScript/JavaScript: *.spec/test.{ts,js}; Rust: *_tests.rs / tests/; etc.).

Input parameters:

- `docs` (string): Include docs: none (default) | summary | full (xmp4_info only)
- `file_path` (string): File path to disambiguate
- `output_format` (string): Output format: Compact (default) or Verbose
- `page` (integer): Page number (1-based, default 1; ignored by xmp4_info/xmp4_source)
- `page_size` (integer): Results per page (default 20, max 100)
- `project` (string, required): Project id: 'repo/project' or 'repo/project/language'. Case-insensitive prefix match. Append '/Python'|'/CSharp'|'/Java'|etc. only to disambiguate multi-language projects (e.g. 'django/Django/Python'…
- `symbol_name` (string, required): Symbol name

### `xmp4_usages` (~237 tokens)

Find all usages/references of a symbol in a project.

Input parameters:

- `docs` (string): Include docs: none (default) | summary | full (xmp4_info only)
- `file_path` (string): File path to disambiguate
- `output_format` (string): Output format: Compact (default) or Verbose
- `page` (integer): Page number (1-based, default 1; ignored by xmp4_info/xmp4_source)
- `page_size` (integer): Results per page (default 20, max 100)
- `project` (string, required): Project id: 'repo/project' or 'repo/project/language'. Case-insensitive prefix match. Append '/Python'|'/CSharp'|'/Java'|etc. only to disambiguate multi-language projects (e.g. 'django/Django/Python'…
- `symbol_name` (string, required): Symbol name

### `xmp4_view` (~223 tokens)

Read a raw file excerpt from an indexed project by line range. Use after xmp4_search/xmp4_outline locates the region of interest, or to expand a truncated xmp4_source snippet. Hard cap of 500 lines per call.

Input parameters:

- `file_path` (string, required): File path inside the project, relative to repo root
- `from_line` (integer): Starting line (1-based, default 1)
- `project` (string, required): Project id: 'repo/project' or 'repo/project/language'. Case-insensitive prefix match. Append '/Python'|'/CSharp'|'/Java'|etc. only to disambiguate multi-language projects (e.g. 'django/Django/Python'…
- `to_line` (integer): Ending line (inclusive, default from_line+49, hard cap 500 lines per call)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/ai-example4-xmp4/mcp#diagnostics

## Score history

- 2026-08-03: 60
- 2026-08-02: 60
- 2026-08-01: 59
- 2026-07-31: 59
- 2026-07-30: 59
- 2026-07-29: 59
- 2026-07-28: 58
- 2026-07-27: 57
- 2026-07-26: 57

## Links

- Remote endpoint: https://mcp.example4.ai/mcp
- Repository: https://github.com/0ics-srls/lsai-xmp4.public
- Website: https://example4.ai/
- Changelog RSS feed: https://verifymcp.io/servers/ai-example4-xmp4/mcp/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/ai-example4-xmp4/mcp/changelog.json
- HTML version of this page: https://verifymcp.io/servers/ai-example4-xmp4/mcp