# 304NotModified (remote · 304notfound.com)

Sourced answers on FR/EU rules + French company search (SIREN, NAF) for agents, quoted and budgeted

- Trust score: 71/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-24

## Components

- remote · `304notfound.com`: 71/100 (this document), [markdown](https://verifymcp.io/servers/com-304notfound-304notmodified/304notfound.md), [page](https://verifymcp.io/servers/com-304notfound-304notmodified/304notfound)

## Channel facts

- Endpoint: `https://304notfound.com/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.4.0`

## 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 2026-10-24.

- **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 4 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**: 64/100
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 1257 tokens (~157/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**: 77/100
  - Stability observed for 23 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 9 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 304NotModified MCP server?

304NotModified is a hosted endpoint at https://304notfound.com/mcp, so there is nothing to install locally. 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 --transport http com-304notfound-304notmodified 'https://304notfound.com/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "com-304notfound-304notmodified": {
      "url": "https://304notfound.com/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-304notfound-304notmodified": {
      "type": "http",
      "url": "https://304notfound.com/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.com-304notfound-304notmodified]
url = "https://304notfound.com/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-304notfound-304notmodified": {
      "type": "remote",
      "url": "https://304notfound.com/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-304notfound-304notmodified --url 'https://304notfound.com/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-304notfound-304notmodified:
    url: "https://304notfound.com/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "com-304notfound-304notmodified": {
      "Transport": "http",
      "Url": "https://304notfound.com/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-304notfound-304notmodified -t streamable-http -u 'https://304notfound.com/mcp'
```

### Other

```json
{
  "mcpServers": {
    "com-304notfound-304notmodified": {
      "type": "http",
      "url": "https://304notfound.com/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.

### 2026-10-24 (score 71, +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.

### 2026-10-22 (score 70, +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.

### 2026-10-20 (score 69, +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.

### 2026-10-18 (score 68, +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.

### 2026-10-15 (score 67, +1)

No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-13 (score 66, +1)

No change was recorded against any check on this day. Stability & Change Management went from 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-12 (score 65, +1)

No change was recorded against any check on this day. Stability & Change Management went from 30 to 37. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-10 (score 64, +2)

- [security] The server rewrote its instructions, which are the text every model session reads
- [security] Tool “list_services” rewrote its description, which is the text the model reads
- [security] Tool “run_service” rewrote its description, which is the text the model reads
- [functional regression] Schema quality: 131 → 157
- [functional] Server version: 0.2.0 → 0.3.0
- [functional] New tool “comment”
- [functional] New tool “get_run”

## MCP tools (8)

### `ask` (~109 tokens)

Pose une question factuelle et reçoit une réponse vérifiée avec ses sources, sa confiance, sa date d'expiration et un request_id. Domaines facultatifs : actualite, droit, entreprise, facturation, finances, formation, general, impots, logiciel, prix, reglementation, vie_quotidienne. Facultatif : context, la tâche que vous êtes en train de faire (sans données personnelles).

Input parameters:

- `context`
- `domain`
- `question` (string, required)

### `feedback` (~124 tokens)

Dit si une réponse obtenue avec « ask » vous a servi. request_id : celui de la réponse. useful : true ou false. issue (facultatif) : wrong (fausse), outdated (périmée), incomplete, bad_source (source insuffisante), off_topic (hors sujet), contradiction (une autre source dit autre chose) ou other. comment (facultatif) : ce qui manquait ou ce qui était faux.

Input parameters:

- `comment`
- `issue`
- `request_id` (string, required)
- `useful` (boolean, required)

### `comment` (~85 tokens)

Message libre pour le propriétaire de 304NotModified, sans clé ni question préalable : ce que vous cherchiez, ce qui vous a manqué, pourquoi vous repartez, ou une suggestion. message : votre texte. looking_for (facultatif) : l'information ou le service cherché. Pas de données personnelles.

Input parameters:

- `looking_for`
- `message` (string, required)

### `calculate` (~151 tokens)

Calcul déterministe sur VOS bougies (304 ne fournit aucune donnée de marché). calculation : ichimoku-rvol (Ichimoku confirmé par le volume relatif), regime (tendance ADX, volatilité ATR, direction) ou position-size (taille de position pour un risque fixé). params : le corps JSON de POST /v1/calc/<calculation>, par exemple {"candles": [{"time", "open", "high", "low", "close", "volume"}, …]} ; voir /llms.txt. Résultat : méthode publiée, valeurs, horodatage. Ce n'est pas un conseil en investissement.

Input parameters:

- `calculation` (string, required)
- `params` (object, required)

### `list_services` (~87 tokens)

Catalogue des services (au-delà des questions), dont la création de contenu réalisée par AUTARK (ex. autark-static-site : un petit site web statique, mode async, plusieurs heures). Pour chacun : identifiant, version, mode (sync ou async), paramètres (input_schema), sortie (output_schema), prix, délai, limites, erreurs. Lire avant quote_service ou run_service.

### `quote_service` (~68 tokens)

Devis gratuit : prix ferme d'un service pour ces paramètres, valable quelques minutes, utilisable une fois avec run_service (quote_id). service : identifiant (ex. fr-suppliers). params : selon input_schema.

Input parameters:

- `params` (object, required)
- `service` (string, required)

### `run_service` (~180 tokens)

Exécute un service et renvoie un résultat structuré avec ses sources, ses limites et ce qui manque. max_price_eur : budget maximal (au-delà, rien n'est exécuté). quote_id : devis à utiliser. request_key : identifiant de votre demande, à réutiliser en cas de relance (même résultat, pas de double facturation). Service sync : résultat immédiat, facturé seulement si status=completed. Service async (création de contenu par AUTARK) : réponse immédiate status=queued avec un run_id ; suivez-le avec get_run. Facturé seulement à la livraison (delivered). Clé d'API nécessaire.

Input parameters:

- `max_price_eur`
- `params` (object, required)
- `quote_id`
- `request_key`
- `service` (string, required)

### `get_run` (~124 tokens)

Suit une commande asynchrone passée avec run_service (ex. un site web réalisé par AUTARK). run_id : celui renvoyé par run_service. status : queued (en file), claimed ou running (en cours, avec progress et step), delivered (livrée : result et files, avec le contenu en base64 et son sha256), failed ou expired (non facturée). Seule la clé qui a passé la commande peut la suivre. Interrogez-le de temps en temps : la réalisation prend plusieurs heures.

Input parameters:

- `run_id` (string, required)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-304notfound-304notmodified/304notfound#diagnostics

## Score history

- 2026-10-24: 71
- 2026-10-23: 70
- 2026-10-22: 70
- 2026-10-21: 69
- 2026-10-20: 69
- 2026-10-19: 68
- 2026-10-18: 68
- 2026-10-17: 67
- 2026-10-16: 67
- 2026-10-15: 67
- 2026-10-14: 66
- 2026-10-13: 66
- 2026-10-12: 65
- 2026-10-10: 64
- 2026-10-04: 62
- 2026-10-03: 62
- 2026-10-02: 62
- 2026-10-01: 61

## Common questions

### What is the 304NotModified MCP server?

304NotModified is an MCP server listed in the public MCP registry as com.304notfound/304notmodified. Sourced answers on FR/EU rules + French company search (SIREN, NAF) for agents, quoted and budgeted. This page covers its hosted endpoint (https://304notfound.com/mcp).

### Is the 304NotModified MCP server safe to use?

304NotModified scores 71 out of 100 on VerifyMCP. 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 304NotModified MCP server expose?

304NotModified exposes 8 tools: ask, feedback, comment, calculate, list_services, and 3 more. Their descriptions and schemas cost roughly 928 tokens of context every time the server is loaded.

### Does the 304NotModified MCP server require authentication?

No. We connected to 304NotModified without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the 304NotModified MCP server still maintained?

304NotModified is still listed as active in the MCP registry. We last reached this channel on 24 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://304notfound.com/mcp
- Website: https://304notfound.com/
- Changelog RSS feed: https://verifymcp.io/servers/com-304notfound-304notmodified/304notfound.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-304notfound-304notmodified/304notfound.json
- HTML version of this page: https://verifymcp.io/servers/com-304notfound-304notmodified/304notfound