Sirenic
REMOTE · API.SIRENIC.EU · SCANNED SEP 23
French & European company registry for AI agents: KYB, sanctions, annual accounts. x402, no API key.
Available components
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. How we score → Why this is hard to score →
Endpoint Security66
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation check failed: no authorisation is required to call this server, and it exposes a tool marked destructive (stop_surveillance_watch). See how to fix → View diagnostics → Fail
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC is configured correctly; the domain's records validate against the full chain to the root. View diagnostics → Pass
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability64
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 34412 tokens (~318/item across 108 items; 108 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management99
- Stability check failed: schema churn in the 30 days we've observed: 1 tool removals, 0 breaking changes, 0 auth/transport breaks, 33 additions. See how to fix → Fail
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
- Structured output schemas are declared (97% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 108 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 108 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the Sirenic MCP server?
Sirenic is a hosted endpoint at https://api.sirenic.eu/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.
remote · api.sirenic.eu
claude mcp add --transport http eu-sirenic-sirenic 'https://api.sirenic.eu/mcp'
{
"mcpServers": {
"eu-sirenic-sirenic": {
"url": "https://api.sirenic.eu/mcp"
}
}
} {
"servers": {
"eu-sirenic-sirenic": {
"type": "http",
"url": "https://api.sirenic.eu/mcp"
}
}
} [mcp_servers.eu-sirenic-sirenic] url = "https://api.sirenic.eu/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"eu-sirenic-sirenic": {
"type": "remote",
"url": "https://api.sirenic.eu/mcp",
"enabled": true
}
}
} openclaw mcp add eu-sirenic-sirenic --url 'https://api.sirenic.eu/mcp' --transport streamable-http
mcp_servers:
eu-sirenic-sirenic:
url: "https://api.sirenic.eu/mcp" {
"McpServers": {
"eu-sirenic-sirenic": {
"Transport": "http",
"Url": "https://api.sirenic.eu/mcp"
}
}
} assistant mcp add eu-sirenic-sirenic -t streamable-http -u 'https://api.sirenic.eu/mcp'
{
"mcpServers": {
"eu-sirenic-sirenic": {
"type": "http",
"url": "https://api.sirenic.eu/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 23 Sept 26 0
- This server's schema is too large to store in full, so we cannot compare its tools day to day functional
- 22 Sept 26 0
- This server's schema is too large to store in full, so we cannot compare its tools day to day functional
- 21 Sept 26 0
- This server's schema is too large to store in full, so we cannot compare its tools day to day functional
- 20 Sept 26 0
- Stability: pass → fail ▼ security
- This server's schema is too large to store in full, so we cannot compare its tools day to day functional
- 19 Sept 26 0
- Schema quality: 31177 → 34548 ▼ functional
- This server's schema is too large to store in full, so we cannot compare its tools day to day functional
- 18 Sept 26 0
- Schema quality: 27045 → 31177 ▼ functional
- This server's schema is too large to store in full, so we cannot compare its tools day to day functional
- 17 Sept 26 0
- This server's schema is too large to store in full, so we cannot compare its tools day to day functional
- 16 Sept 26 0
- Stability: 0.97 → pass security
- This server's schema is too large to store in full, so we cannot compare its tools day to day functional
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 23 Sept 2026 · Probed https://api.sirenic.eu/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=api.sirenic.eu | CN=YE2,O=Let's Encrypt,C=US | 14 Sept 2026 | 13 Dec 2026 | ECDSA 256 | ECDSA-SHA384 | 502162fdf643e159bff07eb6d0922a3a6fd |
| SANs: api.sirenic.eu | ||||||
| CN=YE2,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 4df3b15dd6c0784c507cd37b58e6f115 |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC secure
Validation of api.sirenic.eu. — Secure
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| eu. | present | 35926 | 8 | Verified |
| sirenic.eu. | present | 41932 | 8 | Verified |
| api.sirenic.eu. | Verified address RRset verified with the apex keys |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=31536000; includeSubDomains |
| content-security-policy | default-src 'self';style-src 'self' 'unsafe-inline';img-src 'self' data:;script-src 'none';object-src 'none';frame-ancestors 'none';base-uri 'self';font-src 'self' https: data:;form-action 'self';script-src-attr 'none';upgrade-insecure-requests |
| x-content-type-options | nosniff |
| x-frame-options | SAMEORIGIN |
| referrer-policy | no-referrer |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://api.sirenic.eu/mcp | Verified | 200 | |
| http (plaintext) | http://api.sirenic.eu/mcp | HTTPS enforced | 308 | https://api.sirenic.eu/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
search_french_associations ~350
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| api_key | string | – | – |
| code_postal | string | – | – |
| departement | string | – | – |
| position | string | – | – |
| q | string | yes | – |
| x_payment | string | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| hint | string | – | – |
| payment_required | boolean | yes | – |
| quote | object | – | – |
| resultat | object | – | – |
No examples provided.
search_french_companies ~355
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| api_key | string | – | – |
| q | string | yes | – |
| x_payment | string | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| hint | string | – | – |
| payment_required | boolean | yes | – |
| quote | object | – | – |
| resultat | object | – | – |
No examples provided.
search_french_company_directors ~229
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| api_key | string | – | – |
| nom | string | yes | – |
| x_payment | string | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| hint | string | – | – |
| payment_required | boolean | yes | – |
| quote | object | – | – |
| resultat | object | – | – |
No examples provided.
stop_surveillance_watch ~41
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| surveillance_id | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| hint | string | – | – |
| payment_required | boolean | yes | – |
| quote | object | – | – |
| resultat | object | – | – |
No examples provided.
suggest_company_names ~198
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| q | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| hint | string | – | – |
| payment_required | boolean | yes | – |
| quote | object | – | – |
| resultat | object | – | – |
No examples provided.
validate_eu_vat_number ~337
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| api_key | string | – | – |
| vat_number | string | yes | – |
| x_payment | string | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| hint | string | – | – |
| payment_required | boolean | yes | – |
| quote | object | – | – |
| resultat | object | – | – |
No examples provided.
verify_french_invoice ~457
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| api_key | string | – | – |
| iban | string | – | – |
| siren | string | yes | – |
| tva | string | – | – |
| x_payment | string | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| hint | string | – | – |
| payment_required | boolean | yes | – |
| quote | object | – | – |
| resultat | object | – | – |
No examples provided.
verify_iban_bank ~493
No description provided.
| Name | Type | Req | Description |
|---|---|---|---|
| api_key | string | – | – |
| iban | string | yes | – |
| x_payment | string | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| hint | string | – | – |
| payment_required | boolean | yes | – |
| quote | object | – | – |
| resultat | object | – | – |
No examples provided.
What is the Sirenic MCP server?
Sirenic is an MCP server listed in the public MCP registry as eu.sirenic/sirenic. French & European company registry for AI agents: KYB, sanctions, annual accounts. x402, no API key. This page covers its hosted endpoint (https://api.sirenic.eu/mcp).
Is the Sirenic MCP server safe to use?
Sirenic scores 80 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.
Does the Sirenic MCP server require authentication?
No. We connected to Sirenic without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Sirenic MCP server still maintained?
Sirenic is still listed as active in the MCP registry. We last reached this channel on 23 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.