io.github.sv-number/mcp-server
NPM · SV-NUMBER-MCP · SCANNED SEP 22
Phone numbers for AI agents: order a private number, read the SMS verification code, hand it back.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security98
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- 31 of 96 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 43 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability77
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 707 tokens (~78/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 Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage88
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 63% of tool parameters carry a description.Partial
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
How do I install the io.github.sv-number/mcp-server server?
io.github.sv-number/mcp-server runs locally as an npm package, launched with npx -y sv-number-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · sv-number-mcp
claude mcp add sv-number-mcp-server -- npx -y sv-number-mcp
{
"mcpServers": {
"sv-number-mcp-server": {
"command": "npx",
"args": [
"-y",
"sv-number-mcp"
]
}
}
} {
"servers": {
"sv-number-mcp-server": {
"command": "npx",
"args": [
"-y",
"sv-number-mcp"
]
}
}
} codex mcp add sv-number-mcp-server -- npx -y sv-number-mcp
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"sv-number-mcp-server": {
"type": "local",
"command": [
"npx",
"-y",
"sv-number-mcp"
],
"enabled": true
}
}
} openclaw mcp add sv-number-mcp-server --command npx --arg -y --arg sv-number-mcp
mcp_servers:
sv-number-mcp-server:
command: "npx"
args: ["-y", "sv-number-mcp"] {
"McpServers": {
"sv-number-mcp-server": {
"Transport": "stdio",
"Command": "npx",
"Arguments": [
"-y",
"sv-number-mcp"
]
}
}
} assistant mcp add sv-number-mcp-server -t stdio -c npx -a -y sv-number-mcp
{
"mcpServers": {
"sv-number-mcp-server": {
"command": "npx",
"args": [
"-y",
"sv-number-mcp"
]
}
}
} 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 Sept 26 0
- Stability: 0.97 → pass security
- 21 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 19 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.
- 16 Sept 26 −2
- Stability: pass → 0.80 functional
- 15 Sept 26 0
- Stability: 0.97 → pass security
- 14 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 12 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.
- 9 Sept 26 −2
- Stability: pass → 0.80 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 22 Sept 2026 · Analysed npm/sv-number-mcp@1.0.2
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Dependencies 96 packages
| Packages resolved | 96 |
|---|---|
| Stale | 31 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
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 →
cancel_activation ~58
Cancel an activation when no code arrived; the money returns to the balance in full. Can be called right after ordering. If the API answers that it is too early, wait a couple of minutes and repeat.
| Name | Type | Req | Description |
|---|---|---|---|
| activationId | string | yes | – |
No output schema declared.
No examples provided.
finish_activation ~40
Close an activation after the code was used. Do this on every success: a forgotten activation holds money until it expires.
| Name | Type | Req | Description |
|---|---|---|---|
| activationId | string | yes | – |
No output schema declared.
No examples provided.
get_balance ~26
Current account balance. Ordering a number needs a funded balance; there is no free tier.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_countries ~45
Every country the numbers can come from, with its id and operators. Use the id in order_number.
| Name | Type | Req | Description |
|---|---|---|---|
| search | string | – | Filter by country name, case-insensitive |
No output schema declared.
No examples provided.
list_services ~166
Services available in a country, best match first. Order the code of the site you are registering with: a number bought for one service does not receive another service's SMS. Search by site name or domain, both work. The codes are arbitrary, so look them up instead of guessing: uk is Airbnb, not the United Kingdom. deliveredPercent is null when the pair has no statistics yet, which is the common case; then judge the pair by how many numbers are online. When the site is not in the catalogue at all, order notInList (ot), which receives SMS from any sender that is not in the list.
| Name | Type | Req | Description |
|---|---|---|---|
| country | integer | yes | Country id from list_countries |
| search | string | – | Site name or domain, for example discord or discord.com |
No output schema declared.
No examples provided.
order_number ~158
Order a private number for one service in one country. The number is held for 20 minutes and belongs to this activation alone. Money is held now and charged when the code arrives. The service code has to be the one for the site you are registering with, otherwise its SMS goes to a different pool and never reaches you.
| Name | Type | Req | Description |
|---|---|---|---|
| country | integer | yes | Country id from list_countries |
| maxPrice | number | – | Ceiling per activation; prices float with demand |
| operator | string | – | Operator, or any to keep the pool wide |
| service | string | yes | Service code from list_services, for example tg. It must belong to the site you are registering with, or be ot when that site is not in the catalogue |
No output schema declared.
No examples provided.
request_another_sms ~54
Ask for one more code on the same number, for a password reset or a re-send. Works only after a first code has already arrived; before that the API refuses it.
| Name | Type | Req | Description |
|---|---|---|---|
| activationId | string | yes | – |
No output schema declared.
No examples provided.
totp_code ~81
Compute the authenticator code for an account whose second factor was set up with a shared secret. Runs locally by RFC 6238: the secret never leaves this machine.
| Name | Type | Req | Description |
|---|---|---|---|
| algorithm | string | – | – |
| digits | integer | – | – |
| period | integer | – | – |
| secret | string | yes | Base32 secret shown when 2FA was enabled |
No output schema declared.
No examples provided.
wait_for_code ~79
Wait for the verification code on an ordered number. Polls on its own and returns the code itself, already parsed out of the SMS. Trigger the SMS on the target service first.
| Name | Type | Req | Description |
|---|---|---|---|
| activationId | string | yes | Id returned by order_number |
| timeoutSeconds | integer | – | How long to wait, up to the 20 minute life |
No output schema declared.
No examples provided.
What is the io.github.sv-number/mcp-server server?
io.github.sv-number/mcp-server is listed in the public MCP registry as io.github.sv-number/mcp-server. Phone numbers for AI agents: order a private number, read the SMS verification code, hand it back. This page covers its npm package (sv-number-mcp).
Is the io.github.sv-number/mcp-server server safe to use?
io.github.sv-number/mcp-server scores 83 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 22 September 2026. It declares no install or post-install scripts. 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.sv-number/mcp-server server expose?
io.github.sv-number/mcp-server exposes 9 tools: get_balance, list_countries, list_services, order_number, wait_for_code, and 4 more. Their descriptions and schemas cost roughly 707 tokens of context every time the server is loaded.
Is the io.github.sv-number/mcp-server server still maintained?
io.github.sv-number/mcp-server is still listed as active in the MCP registry. We last reached this channel on 22 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the io.github.sv-number/mcp-server server under?
io.github.sv-number/mcp-server declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.