# SSTV Decoder (remote · bonissystems.com)

Decode an SSTV audio recording and anchor its fingerprint and image hash to the Knox event chain.

- Trust score: 64/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-08-03

## Components

- remote · `bonissystems.com`: 64/100 (this document), [markdown](https://verifymcp.io/servers/com-bonissystems-sstv-decoder/api-knox-agents-sstv-decoder-mcp.md), [page](https://verifymcp.io/servers/com-bonissystems-sstv-decoder/api-knox-agents-sstv-decoder-mcp)

## Channel facts

- Endpoint: `https://bonissystems.com/api/knox/agents/sstv-decoder/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## 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 2 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**: 65/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 525 tokens (~262/item across 2 items; 2 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 com-bonissystems-sstv-decoder https://bonissystems.com/api/knox/agents/sstv-decoder/mcp
```

### Codex

```toml
[mcp_servers.com-bonissystems-sstv-decoder]
url = "https://bonissystems.com/api/knox/agents/sstv-decoder/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-bonissystems-sstv-decoder": {
      "type": "remote",
      "url": "https://bonissystems.com/api/knox/agents/sstv-decoder/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-bonissystems-sstv-decoder --url https://bonissystems.com/api/knox/agents/sstv-decoder/mcp --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-bonissystems-sstv-decoder:
    url: "https://bonissystems.com/api/knox/agents/sstv-decoder/mcp"
```

### Other

```json
{
  "mcpServers": {
    "com-bonissystems-sstv-decoder": {
      "type": "http",
      "url": "https://bonissystems.com/api/knox/agents/sstv-decoder/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 64, +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 63, +1)

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

### 2026-07-30 (score 62, +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 61, +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 60, +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 59)

First indexed and scored.

## MCP tools (2)

### `decode_sstv` (~321 tokens)

Demodulate a presented slow-scan-television (SSTV) audio recording, anchor the audio fingerprint and the decoded image hash to the Knox event chain, and return a self-authenticating receipt bundle (Knox anchor + C2PA-aligned envelope + FRE 902(13)/(14)-shape affidavit). Audio bytes are NOT retained — only the SHA-256 fingerprint and the decoded image are anchored. Bonis Systems does not capture audio on its own; the audio must be presented by the caller (a public WebSDR recording, a customer-controlled SDR capture they consent to submit, or audio they own). Phase 1 supports Martin M1 (VIS code 0x2C, 320×256 RGB). Other VIS codes return mode = 'unsupported' with detected hex. Requires a Knox Bearer API key on the Authorization header — unauthenticated calls are rejected.

Input parameters:

- `audioBase64` (string, required): Base64-encoded audio. Either a complete WAV file (RIFF/WAVE, 8/16/24-bit PCM or 32-bit IEEE float, mono or stereo, 4-192 kHz) or raw 16-bit signed little-endian mono PCM samples.
- `audioFormat` (string): Audio container ('wav' default, or 'pcm16-mono').
- `capture` (object): Optional capture-context metadata.
- `name` (string, required): Display name for the recording (max 256 chars).
- `sampleRate` (integer): Required when audioFormat = 'pcm16-mono'.

### `verify_sstv_decode` (~97 tokens)

Verify a previously anchored SSTV-decode record. Given a SHA-256 anchor hash (the payload_hash from a prior decode_sstv call), return the anchor record, predecessor hash, sequence number, and timestamp. Public — no authentication required. The verification path itself is also accessible at GET /api/knox/verify?hash=<hash>.

Input parameters:

- `hash` (string, required): SHA-256 anchor hash (64 lowercase hex chars).

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-bonissystems-sstv-decoder/api-knox-agents-sstv-decoder-mcp#diagnostics

## Score history

- 2026-08-03: 64
- 2026-08-02: 64
- 2026-08-01: 63
- 2026-07-31: 63
- 2026-07-30: 62
- 2026-07-29: 61
- 2026-07-28: 61
- 2026-07-27: 60
- 2026-07-26: 59

## Links

- Remote endpoint: https://bonissystems.com/api/knox/agents/sstv-decoder/mcp
- Website: https://bonissystems.com/agents/sstv-decoder
- Changelog RSS feed: https://verifymcp.io/servers/com-bonissystems-sstv-decoder/api-knox-agents-sstv-decoder-mcp/changelog.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-bonissystems-sstv-decoder/api-knox-agents-sstv-decoder-mcp/changelog.json
- HTML version of this page: https://verifymcp.io/servers/com-bonissystems-sstv-decoder/api-knox-agents-sstv-decoder-mcp