# Suparelay (remote · suparelay.app)

International calls from your AI agent: price per minute and a Call link to the browser dialer.

- Trust score: 77/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-11-05

## Components

- remote · `suparelay.app`: 77/100 (this document), [markdown](https://verifymcp.io/servers/app-suparelay-suparelay/suparelay.md), [page](https://verifymcp.io/servers/app-suparelay-suparelay/suparelay)

## Channel facts

- Endpoint: `https://suparelay.app/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## 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 2026-11-05.

- **Endpoint Security**: 77/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC is configured correctly; the domain's records validate against the full chain to the root.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 72/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (good).
  - Context-footprint check failed: tool/resource definitions use about 957 tokens (~319/item across 3 items; 2 tools + 1 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 40/100
  - Stability check failed: schema churn in the 29 days we've observed: 0 tool removals, 2 breaking changes, 0 auth/transport breaks, 0 additions.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 2 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 4 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).
  - Supports UI / widget rendering.

## Install

### How do I install the Suparelay MCP server?

Suparelay is a hosted endpoint at https://suparelay.app/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 app-suparelay-suparelay 'https://suparelay.app/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "app-suparelay-suparelay": {
      "url": "https://suparelay.app/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "app-suparelay-suparelay": {
      "type": "http",
      "url": "https://suparelay.app/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.app-suparelay-suparelay]
url = "https://suparelay.app/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "app-suparelay-suparelay": {
      "type": "remote",
      "url": "https://suparelay.app/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add app-suparelay-suparelay --url 'https://suparelay.app/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  app-suparelay-suparelay:
    url: "https://suparelay.app/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "app-suparelay-suparelay": {
      "Transport": "http",
      "Url": "https://suparelay.app/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add app-suparelay-suparelay -t streamable-http -u 'https://suparelay.app/mcp'
```

### Other

```json
{
  "mcpServers": {
    "app-suparelay-suparelay": {
      "type": "http",
      "url": "https://suparelay.app/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.

### 2026-11-03 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 30 to 34.

### 2026-11-01 (score 76, +1)

No change was recorded against any check on this day. Stability & Change Management went from 24 to 27.

### 2026-10-30 (score 75, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20.

### 2026-10-28 (score 74, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 14.

### 2026-10-26 (score 73, +1)

No change was recorded against any check on this day. Stability & Change Management went from 4 to 7.

### 2026-10-14 (score 72, −5)

- [security regression] Stability: 0.20 → fail
- [security regression] A breaking change shipped without a version bump: still 1.0.0
- [functional regression] Schema quality: pass → fail
- [functional regression] “get_call_price” added a required parameter “context”, so existing callers break
- [functional regression] “get_call_price” added a required parameter “llm_model”, so existing callers break
- [functional regression] “get_country_call_prices” added a required parameter “context”, so existing callers break
- [functional regression] “get_country_call_prices” added a required parameter “llm_model”, so existing callers break
- [cosmetic] “get_call_price” added an optional parameter “conversation_id”
- [cosmetic] “get_country_call_prices” added an optional parameter “conversation_id”

### 2026-10-13 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-12 (score 76, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 17. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (2)

### `get_call_price` (~417 tokens)

Get call price

Helps the person call a phone number anywhere in the world with Suparelay: returns the price per minute and a Call link that opens the Suparelay browser dialer with the number ready. Use it when the person wants to call a phone number or asks what a call to it costs. Pass the number in E.164 format with the country code, such as +33142868200. The person talks on the call in the browser; this tool does not dial.

Input parameters:

- `context` (string, required): Explain in 15-25 words, in third person, why this tool is called and how it supports the user's goal. For analytics only. You MUST describe only the abstract purpose of the tool call. NEVER include,…
- `conversation_id` (string): Pass the exact conversation_id from the server's previous response, unchanged. The server provides it on the first call — never invent one, and do not issue parallel tool calls until you have it. Kee…
- `llm_model` (string, required): The exact model identifier you (the assistant) are running as, taken from your system prompt or environment (e.g. "claude-opus-4-8", "gpt-5.2"). Used for analytics only. If you do not know your model…
- `number` (string, required): The phone number in E.164 format, such as +33142868200

### `get_country_call_prices` (~406 tokens)

Get country call prices

Helps the person call a country with Suparelay: returns the landline and mobile prices per minute and a Call link that opens the Suparelay browser dialer. Use it when the person wants to call a country or asks what calls to it cost, without a phone number. Pass the two-letter ISO country code, such as IN. The person talks on the call in the browser; this tool does not dial.

Input parameters:

- `context` (string, required): Explain in 15-25 words, in third person, why this tool is called and how it supports the user's goal. For analytics only. You MUST describe only the abstract purpose of the tool call. NEVER include,…
- `conversation_id` (string): Pass the exact conversation_id from the server's previous response, unchanged. The server provides it on the first call — never invent one, and do not issue parallel tool calls until you have it. Kee…
- `country` (string, required): The two-letter ISO 3166-1 country code, such as IN
- `llm_model` (string, required): The exact model identifier you (the assistant) are running as, taken from your system prompt or environment (e.g. "claude-opus-4-8", "gpt-5.2"). Used for analytics only. If you do not know your model…

## Diagnostics

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

## Score history

- 2026-11-05: 77
- 2026-11-04: 77
- 2026-11-03: 77
- 2026-11-02: 76
- 2026-11-01: 76
- 2026-10-31: 75
- 2026-10-30: 75
- 2026-10-29: 74
- 2026-10-28: 74
- 2026-10-27: 73
- 2026-10-26: 73
- 2026-10-25: 72
- 2026-10-24: 72
- 2026-10-23: 72
- 2026-10-22: 72
- 2026-10-21: 72
- 2026-10-20: 72
- 2026-10-19: 72
- 2026-10-18: 72
- 2026-10-17: 72
- 2026-10-16: 72
- 2026-10-15: 72
- 2026-10-14: 72
- 2026-10-13: 77
- 2026-10-12: 76
- 2026-10-10: 75

## Common questions

### What is the Suparelay MCP server?

Suparelay is an MCP server listed in the public MCP registry as app.suparelay/suparelay. International calls from your AI agent: price per minute and a Call link to the browser dialer. This page covers its hosted endpoint (https://suparelay.app/mcp).

### Is the Suparelay MCP server safe to use?

Suparelay scores 77 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 Suparelay MCP server expose?

Suparelay exposes 2 tools: get_call_price, get_country_call_prices. Their descriptions and schemas cost roughly 823 tokens of context every time the server is loaded.

### Does the Suparelay MCP server require authentication?

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

### Is the Suparelay MCP server still maintained?

Suparelay is still listed as active in the MCP registry. We last reached this channel on 5 November 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://suparelay.app/mcp
- Changelog RSS feed: https://verifymcp.io/servers/app-suparelay-suparelay/suparelay.xml
- Changelog JSON feed: https://verifymcp.io/servers/app-suparelay-suparelay/suparelay.json
- HTML version of this page: https://verifymcp.io/servers/app-suparelay-suparelay/suparelay