io.github.MassimoSun/smsverbot-mcp
REMOTE · KREMLEDROID.DUCKDNS.ORG
SMS verification for AI agents: buy a number, get the code, cancel with refund. Free sandbox.
Available components
Last scanned (23 hours ago)
Scores higher than 46% of remote servers
Reachable. Last reached 22 Oct 2026.
Category Communication
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 Security57
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 9 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability52
- AI-judged instruction clarity (fair).Partial
- Tool/resource definitions use about 291 tokens (~32/item across 9 items; 9 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage71
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 0% of tool parameters carry a description.Fail
- Structured output schemas are declared (100% 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 9 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 9 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
Unverified: 1 category
A category scored 0 because we could not verify it: authentication we do not have, an unreachable endpoint, or not enough scan history. We only credit what we can confirm.
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.
- 22 Oct 26 58
First indexed and scored.
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 22 Oct 2026 · Probed https://kremledroid.duckdns.org/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_256_GCM_SHA384 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=kremledroid.duckdns.org | CN=YR1,O=Let's Encrypt,C=US | 17 Sept 2026 | 16 Dec 2026 | RSA 2048 | SHA256-RSA | 624ba797aee872df7159bfa08a396adec67 |
| SANs: kremledroid.duckdns.org | ||||||
| CN=YR1,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | a20253f15f2691c05dc1ce13b9bcca4e |
| CN=Root YR,O=ISRG,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | RSA 4096 | SHA256-RSA | f24b6d17f9d9ad7cb1c9fea78782699f |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of kremledroid.duckdns.org. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| org. | present | 26974 | 8 | Verified |
| duckdns.org. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
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 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://kremledroid.duckdns.org/mcp | Verified | 200 | |
| http (plaintext) | http://kremledroid.duckdns.org/mcp | HTTPS enforced | 301 | https://kremledroid.duckdns.org/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 →
buy_number ~40
Buy a phone number and debit the prepaid balance.
| Name | Type | Req | Description |
|---|---|---|---|
| api_key | string | – | – |
| country | string | yes | – |
| service | string | yes | – |
Structured output declared, but exposes no named fields.
No examples provided.
cancel_order ~34
Cancel an order and refund the balance exactly once.
| Name | Type | Req | Description |
|---|---|---|---|
| api_key | string | – | – |
| order_id | integer | yes | – |
Structured output declared, but exposes no named fields.
No examples provided.
get_balance ~22
Return the current prepaid balance.
| Name | Type | Req | Description |
|---|---|---|---|
| api_key | string | – | – |
Structured output declared, but exposes no named fields.
No examples provided.
get_price ~42
Get the retail price for a service and country without buying.
| Name | Type | Req | Description |
|---|---|---|---|
| api_key | string | – | – |
| country | string | yes | – |
| service | string | yes | – |
Structured output declared, but exposes no named fields.
No examples provided.
list_countries ~24
List countries available for SMS activation.
| Name | Type | Req | Description |
|---|---|---|---|
| api_key | string | – | – |
Structured output declared, but exposes no named fields.
No examples provided.
list_services ~33
List services available for SMS activation in a country.
| Name | Type | Req | Description |
|---|---|---|---|
| api_key | string | – | – |
| country | string | – | – |
Structured output declared, but exposes no named fields.
No examples provided.
order_history ~31
Return recent orders for the API key.
| Name | Type | Req | Description |
|---|---|---|---|
| api_key | string | – | – |
| limit | integer | – | – |
Structured output declared, but exposes no named fields.
No examples provided.
wait_for_code ~35
Wait for an SMS code for an existing order.
| Name | Type | Req | Description |
|---|---|---|---|
| api_key | string | – | – |
| order_id | integer | yes | – |
Structured output declared, but exposes no named fields.
No examples provided.
whoami ~30
Verify an API key and return its id and balance in rubles.
| Name | Type | Req | Description |
|---|---|---|---|
| api_key | string | – | – |
Structured output declared, but exposes no named fields.
No examples provided.
How do I install the io.github.MassimoSun/smsverbot-mcp server?
io.github.MassimoSun/smsverbot-mcp is a hosted endpoint at https://kremledroid.duckdns.org/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 · kremledroid.duckdns.org
claude mcp add --transport http massimosun-smsverbot-mcp 'https://kremledroid.duckdns.org/mcp'
What is the io.github.MassimoSun/smsverbot-mcp server?
io.github.MassimoSun/smsverbot-mcp is listed in the public MCP registry as io.github.MassimoSun/smsverbot-mcp. SMS verification for AI agents: buy a number, get the code, cancel with refund. Free sandbox. This page covers its hosted endpoint (https://kremledroid.duckdns.org/mcp).
Is the io.github.MassimoSun/smsverbot-mcp server safe to use?
io.github.MassimoSun/smsverbot-mcp scores 58 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 io.github.MassimoSun/smsverbot-mcp server expose?
io.github.MassimoSun/smsverbot-mcp exposes 9 tools: list_services, list_countries, get_price, buy_number, wait_for_code, and 4 more. Their descriptions and schemas cost roughly 291 tokens of context every time the server is loaded.
Does the io.github.MassimoSun/smsverbot-mcp server require authentication?
No. We connected to io.github.MassimoSun/smsverbot-mcp without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the io.github.MassimoSun/smsverbot-mcp server still maintained?
io.github.MassimoSun/smsverbot-mcp is still listed as active in the MCP registry. We last reached this channel on 22 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.