DNS MCP Server
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| DOMAIN | No | Domain for certificate generation | localhost |
| MCP_HOST | No | Server bind address | 0.0.0.0 |
| MCP_PORT | No | Server port | 8000 |
| LOG_LEVEL | No | Logging level | INFO |
| HTTPS_PORT | No | External HTTPS port | 8088 |
| DNS_RETRIES | No | Max retry attempts | 3 |
| DNS_TIMEOUT | No | Query timeout in seconds | 5 |
| DEFAULT_RESOLVER | No | Default DNS resolver IP |
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": false
} |
| experimental | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| dns_lookupA | Query DNS records for a domain. Supports all record types including DNSSEC. |
| dns_reverseC | Reverse DNS lookup (PTR) for an IP address. |
| dns_bulkB | Query DNS records for multiple domains in one call. |
| dns_reverse_bulkA | Reverse DNS lookup for multiple IP addresses. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
TDQS
Scored across 4 tools
Each tool has a clearly distinct purpose: single forward lookup, single reverse lookup, bulk forward lookup, and bulk reverse lookup. There is no overlap between them, and an agent can easily choose the right one based on the operation and cardinality.
The naming follows a predictable pattern: 'dns_' prefix with an action and optional '_bulk' suffix. However, 'dns_bulk' deviates from the pattern used by 'dns_lookup' — a more consistent name would be 'dns_lookup_bulk'.
Four tools is well-scoped for a DNS lookup server. The set covers the essential operations without unnecessary bloat.
The domain is DNS queries, and the tools cover both forward and reverse lookups in singular and bulk forms. All record types are supported, including DNSSEC, so there are no obvious gaps for a read-only DNS lookup server.