# Disban

> Check if a signup email is disposable, free, an alias, testing, parked or unknown, with evidence.

- name: io.disban/disban
- version: 1.0.0
- connection class: R1 (autonomous)
- trust: 82/100 flags: no-repository
- quality: 81/100 (new)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.disban%2Fdisban
- tools: https://api.protogrid.dev/v1/servers/io.disban%2Fdisban/tools

**An agent can connect on its own if it already holds `DISBAN_TOKEN`.** Remote endpoint behind a static API key or header. The registry never sees the value; the agent fills the placeholder.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "disban": {
      "type": "http",
      "url": "https://disban.io/mcp",
      "headers": {
        "Authorization": "Bearer ${DISBAN_TOKEN}"
      }
    }
  }
}
```

Placeholders to fill: `${DISBAN_TOKEN}`.

## Trust

- hygiene: 80
- liveness: 98
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-95% +updated-6d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 81/100 (new)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 86 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 3 of 3 tools declare readOnlyHint or destructiveHint
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: check_email_domain (destructiveHint, idempotentHint); check_email_domains (destructiveHint, idempotentHint); get_usage (destructiveHint, idempotentHint, openWorldHint)
- pass `tools.token_cost`: about 270 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: n/a (weight 15)

- n/a `stability.changes`, `stability.rug_pull`: tool history recorded for 5 of the 7 days needed

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 3, about 270 tokens to load them all
- tool set hash: 0cd28f1b2ce127ef0dc446022cd11a38
- badge: [![protogrid quality](https://protogrid.dev/badge/io.disban/disban.svg)](https://protogrid.dev/servers/io.disban/disban)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://disban.io/mcp (streamable-http, auth api_key ${DISBAN_TOKEN}, reachable true, uptime30d 0.95454544)

## Packages

_none_

## Tools (3)

- `check_email_domain`: Classify the domain of an email address or a bare domain as disposable, free (e.g. Gmail), alias (privacy relay), testing, parked or unknown, with the reason, evidence and whether it can receive mail. Use before creating an account or sending a verification email. Unknown means not enough evidence, not safe.
- `check_email_domains`: Classify up to 50 email addresses or domains at once. Results come back in input order; a failed entry has an error and is not charged.
- `get_usage`: Current plan, remaining checks this month and when the allowance resets.