Voxplo
REMOTE · MCP.VOXPLO.AI · 2 COMPONENTS · SCANNED SEP 20
Give AI agents a phone: outbound AI calls that return a summary, transcript, and extracted fields.
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 Security89
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation is enforced on tool calls, advertised via RFC 9728 protected-resource metadata. Discovery is public, which costs nothing: no tool can be invoked without a token. View diagnostics → Pass
- 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
- The authorisation server offers only Dynamic Client Registration (RFC 7591), which MCP 2026-07-28 deprecated in favour of Client ID Metadata Documents. View diagnostics → Partial
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability86
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 850 tokens (~85/item across 10 items; 4 tools + 6 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management17
- Stability observed for 5 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
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
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 5 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 Voxplo MCP server?
Voxplo is a hosted endpoint at https://mcp.voxplo.ai/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 · mcp.voxplo.ai
claude mcp add --transport http ai-voxplo-voxplo 'https://mcp.voxplo.ai/mcp'
{
"mcpServers": {
"ai-voxplo-voxplo": {
"url": "https://mcp.voxplo.ai/mcp"
}
}
} {
"servers": {
"ai-voxplo-voxplo": {
"type": "http",
"url": "https://mcp.voxplo.ai/mcp"
}
}
} [mcp_servers.ai-voxplo-voxplo] url = "https://mcp.voxplo.ai/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"ai-voxplo-voxplo": {
"type": "remote",
"url": "https://mcp.voxplo.ai/mcp",
"enabled": true
}
}
} openclaw mcp add ai-voxplo-voxplo --url 'https://mcp.voxplo.ai/mcp' --transport streamable-http
mcp_servers:
ai-voxplo-voxplo:
url: "https://mcp.voxplo.ai/mcp" {
"McpServers": {
"ai-voxplo-voxplo": {
"Transport": "http",
"Url": "https://mcp.voxplo.ai/mcp"
}
}
} assistant mcp add ai-voxplo-voxplo -t streamable-http -u 'https://mcp.voxplo.ai/mcp'
{
"mcpServers": {
"ai-voxplo-voxplo": {
"type": "http",
"url": "https://mcp.voxplo.ai/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.
- 19 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.
- 16 Sept 26 +1
- Stability: unverified → 0.03 ▲ functional
- 15 Sept 26 +43
- Transport: unverified → pass ▲ security
- Injection markers: unverified → pass ▲ security
- First check of Judged manipulation: pass security
- Authorization: Authorisation is enforced on tool calls, advertised via RFC 9728 protected-resource metadata. Discovery is public, which costs nothing: no tool can be invoked without a token. security
- MCP protocol: unverified → pass ▲ functional
- Schema quality: unverified → 100 ▲ functional
- Tool coverage: unverified → 100 ▲ functional
- First check of Schema quality: fail functional
- First check of Schema quality: excellent functional
- First check of Destructive annotations: pass functional
- First check of Schema quality: pass functional
- First check of Tool coverage: 100 functional
- 26 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 11 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 31 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 27 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 26 Jul 26 0
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 20 Sept 2026 · Probed https://mcp.voxplo.ai/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=voxplo.ai | CN=WE1,O=Google Trust Services,C=US | 25 Aug 2026 | 23 Nov 2026 | ECDSA 256 | ECDSA-SHA256 | df2b58299ee8456e130f85a840885a45 |
| SANs: voxplo.ai, *.voxplo.ai | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of mcp.voxplo.ai. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| ai. | present | 3799 | 8 | Verified |
| voxplo.ai. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication Enforced and verified
The endpoint asked for a token and published valid RFC 9728 metadata describing how to get one.
| Result | Enforced and verified |
|---|---|
| Enforced | On tool calls |
| HTTP status | 200 |
WWW-Authenticate challenge Bearer error="invalid_token", error_description="Missing Authorization header", resource_metadata="https://mcp.voxplo.ai/.well-known/oauth-protected-resource/mcp"
Bearer error="invalid_token", error_description="Missing Authorization header", resource_metadata="https://mcp.voxplo.ai/.well-known/oauth-protected-resource/mcp"Protected resource metadata
| Document | https://mcp.voxplo.ai/.well-known/oauth-protected-resource/mcp |
|---|---|
| Retrieved | Yes |
| Resource | https://mcp.voxplo.ai/mcp |
| Authorisation server | https://mcp.voxplo.ai/ |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://mcp.voxplo.ai/mcp | Verified | 200 | |
| http (plaintext) | http://mcp.voxplo.ai/mcp | HTTPS enforced | 308 | https://mcp.voxplo.ai/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 →
get_call Get call status and result ~74
Get the status and result of a call by id. status is one of queued | ringing | in_progress (still running, poll again) or completed | no_answer | voicemail | declined | failed (terminal). Returns summary, transcript, and extracted fields.
| Name | Type | Req | Description |
|---|---|---|---|
| callId | string | yes | The callId returned by place_call. |
No output schema declared.
No examples provided.
list_calls List recent calls ~39
List recent calls placed by your account (most recent first).
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max calls to return (default 20, max 100). |
No output schema declared.
No examples provided.
place_call Place an AI phone call ~313
Place an outbound AI phone call toward an objective. Returns a callId immediately; the call is conducted asynchronously. Poll get_call with that callId until status is terminal (completed | no_answer | voicemail | declined | failed).
| Name | Type | Req | Description |
|---|---|---|---|
| accountNumber | string | – | Account/phone digits the enter_account_number tool keys deterministically (keypad chars only). |
| callbackNumber | string | – | Our callback DID digits the enter_callback_number tool keys (callback-to-AI mode). |
| callerId | string | – | Optional caller ID; must be a number on your account. |
| context | string | – | Background context for the assistant. |
| fields | array | – | Structured fields to extract from the call. |
| listenFirst | boolean | – | If true, stay silent until the callee/IVR speaks first, then respond. Recommended for any outbound call into a phone tree. |
| navMode | string | – | How to navigate the far-end IVR: auto (detect keypad menu vs conversational assistant live), keypad (stay muted and press keys), or speech (talk). |
| objective | string | yes | What the call should accomplish. |
| to | string | yes | Destination phone number in E.164, e.g. +14155550123. |
| toolAllowlist | array | – | Tools this call may use, e.g. ["send_digits","reached_human","add_participant","enter_account_number"]. Omit for the default set. |
| webhookUrl | string | – | Optional https URL to receive the signed result. |
No output schema declared.
No examples provided.
set_appointment Set an appointment by phone ~245
Place an outbound AI phone call to set up a meeting. The assistant calls the person, agrees a time, and the result (poll get_call) carries outcome (appointment_set | callback_requested | declined | no_answer | failed) and, when set, the appointment (startISO, timezone, durationMinutes, attendee, subject). Returns a callId immediately.
| Name | Type | Req | Description |
|---|---|---|---|
| autoBook | boolean | – | Also book the agreed time on your connected calendar. |
| callerId | string | – | Optional caller ID; must be a number on your account. |
| durationMinutes | integer | – | Meeting length in minutes (default 30). |
| slots | array | – | Specific start times to offer, ISO-8601 with offset. |
| subject | string | yes | What the meeting is about. |
| timePreference | string | – | Natural-language window, e.g. "weekday mornings next week". |
| timezone | string | – | IANA timezone for the appointment, e.g. Asia/Jerusalem. |
| to | string | yes | Who to call, in E.164, e.g. +14155550123. |
| webhookUrl | string | – | Optional https URL to receive the signed result. |
No output schema declared.
No examples provided.
What is the Voxplo MCP server?
Voxplo is an MCP server listed in the public MCP registry as ai.voxplo/voxplo. Give AI agents a phone: outbound AI calls that return a summary, transcript, and extracted fields. This page covers its hosted endpoint (https://mcp.voxplo.ai/mcp).
Is the Voxplo MCP server safe to use?
Voxplo scores 81 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 Voxplo MCP server expose?
Voxplo exposes 4 tools: place_call, set_appointment, get_call, list_calls. Their descriptions and schemas cost roughly 671 tokens of context every time the server is loaded.
Does the Voxplo MCP server require authentication?
Yes. Voxplo asked us for credentials when we connected, so you will need to authorise it in your MCP client before it can do anything.
Is the Voxplo MCP server still maintained?
Voxplo is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.