Domain RDAP MCP
Server Details
Free, keyless domain registration lookup via RDAP: registered, available, registrar, expiration.
- Status
- Healthy
- Last Tested
- Transport
- Streamable HTTP
- URL
Glama MCP Gateway
Connect through Glama MCP Gateway for full control over tool access and complete visibility into every call.
Full call logging
Every tool call is logged with complete inputs and outputs, so you can debug issues and audit what your agents are doing.
Tool access control
Enable or disable individual tools per connector, so you decide what your agents can and cannot do.
Managed credentials
Glama handles OAuth flows, token storage, and automatic rotation, so credentials never expire on your clients.
Usage analytics
See which tools your agents call, how often, and when, so you can understand usage patterns and catch anomalies.
Tool Definition Quality
Average 4.7/5 across 1 of 1 tools scored.
Only one tool exists, so there is no possibility of confusion. The tool's description clearly defines its purpose and input requirements.
The single tool name 'check_domain' follows a clear verb_noun pattern, which is consistent and descriptive.
With only one tool, the server feels thin for a RDAP service, though the tool covers a coherent domain-checking use case.
The tool covers the main domain registration queries (registered status, registrar, expiration) and returns clear errors for malformed input, so it is complete for its narrow scope.
Available Tools
1 toolcheck_domainARead-onlyInspect
Check whether a domain name is registered, using real-time RDAP data (the IETF-standardized successor to WHOIS). Use for "is domain-x.com available/registered", "who is domain-x.com registered with", or "when does domain-x.com expire" style questions.
domain is a bare domain like "example.com" -- no protocol prefix, no
path, no spaces.
If the domain is NOT registered, returns {"domain": ..., "registered": false} -- this is a normal, meaningful answer (the domain is
available), not an error.
If the domain IS registered, returns {"domain", "registered": true, "status", "registered_date", "expiration_date", "last_changed_date", "registrar"}. status is a list of RDAP status codes (e.g. "active",
"client transfer prohibited"). Dates are ISO 8601. registrar is the
registrar's name, or null if the registry redacts it for privacy.
For obviously malformed input (not a domain -- e.g. missing a dot, has
spaces, or includes a protocol like "https://"), returns a clean
{"error": ...} instead of calling the API.
| Name | Required | Description | Default |
|---|---|---|---|
| domain | Yes |
Output Schema
| Name | Required | Description |
|---|---|---|
No output parameters | ||
Tool Definition Quality
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Beyond the readOnlyHint annotation, the description extensively discloses behavior: it explains the difference between registered and unregistered responses, output fields, date formats, registrar redaction, and clean error handling for malformed input. This goes far beyond what annotations provide.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
The description is well-structured and front-loaded with the core purpose. It is somewhat lengthy but every sentence adds essential details (output formats, error cases). It earns a 4 because it is not as concise as possible, though nothing is wasted.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
Given the tool's moderate complexity, the description covers all relevant aspects: purpose, input format, output schemas for both registered and unregistered cases, and error handling. Even though an output schema exists, the description provides valuable context around the response meanings and edge cases, making it complete.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
With 0% schema description coverage, the description fully compensates by specifying exactly what 'domain' should be: 'a bare domain like example.com -- no protocol prefix, no path, no spaces.' This fully clarifies the single parameter.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
The description clearly states the tool's purpose: 'Check whether a domain name is registered, using real-time RDAP data'. It also specifies exact question types it answers ('is domain-x.com available/registered', 'who is domain-x.com registered with', 'when does domain-x.com expire'), making the purpose highly specific and unambiguous.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
The description provides explicit use-case examples ('Use for ... style questions'), which gives clear contextual guidance. However, it does not mention alternatives or when-not-to-use scenarios (beyond malformed input), so it lacks explicit exclusions that would merit a 5.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Frequently Asked Questions
Claiming proves that you control a remote MCP connector. It does not move, proxy, or interrupt the server.
Open the connector listing, choose Claim ownership, and sign in to Glama.
Complete one verification method:
GitHub identity — fastest for official registry listings. For a namespace such as
io.github.alice/server, link the matching GitHub user or an account that owns the GitHub organization, then choose Claim with GitHub.HTTP challenge — works when you can deploy a public file. Generate a token, publish the exact JSON Glama shows at
/.well-known/glama.jsonon the same origin as the connector, then choose Check HTTP challenge.DNS challenge — works when you control DNS but cannot change the server. Generate a token, create the exact TXT record Glama shows, wait for it to propagate, then choose Check DNS challenge.
After verification, Glama sends a confirmation email and gives you access to listing details, thumbnails, health checks, and analytics. Keep the HTTP file or DNS record in place: Glama periodically checks it and ownership remains verified while the token is discoverable.
The HTTP ownership file has this structure:
{
"$schema": "https://glama.ai/mcp/schemas/connector.json",
"claim": "glama_claim_..."
}Claim tokens are opaque, stable, and bound to the signed-in Glama account. They contain no email address or other personal information. If Glama can no longer discover a verified HTTP or DNS token, it starts a seven-day grace period before removing claim-based access. Restore the same token during that period to keep ownership verified. Never publish an email address, Glama session token, GitHub token, or connector credential as ownership proof.
If verification fails, confirm that you copied the current token exactly. The HTTP file must be public, return valid JSON with a successful HTTP response, and stay on the connector's origin. DNS changes may need more time to propagate. A claim cannot transfer to a different origin or hostname: if the connector target changes, Glama starts the grace period and the new target must be claimed separately after the previous claim is released.
For a connector linked to the official MCP Registry, registry updates continue to replace its name, description, and URL by default. After claiming, open Manage connector and enable Use Glama listing details as the source of truth if edits made on Glama should be preserved. Categories and thumbnails are always managed on Glama; registry linkage and technical connection settings continue to sync.
Control your server's listing on Glama, including description and metadata
Access analytics and receive server usage reports
Get monitoring and health status updates for your server
Feature your server to boost visibility and reach more users
For users:
Full audit trail – every tool call is logged with inputs and outputs for compliance and debugging
Granular tool control – enable or disable individual tools per connector to limit what your AI agents can do
Centralized credential management – store and rotate API keys and OAuth tokens in one place
Change alerts – get notified when a connector changes its schema, adds or removes tools, or updates tool definitions, so nothing breaks silently
For server owners:
Proven adoption – public usage metrics on your listing show real-world traction and build trust with prospective users
Tool-level analytics – see which tools are being used most, helping you prioritize development and documentation
Direct user feedback – users can report issues and suggest improvements through the listing, giving you a channel you would not have otherwise
The connector status is unhealthy when Glama is unable to successfully connect to the server. This can happen for several reasons:
The server is experiencing an outage
The URL of the server is wrong
Credentials required to access the server are missing or invalid
If you are the owner of this MCP connector and would like to make modifications to the listing, including providing test credentials for accessing the server, please contact support@glama.ai.
Discussions
No comments yet. Be the first to start the discussion!
Related MCP Servers
- AlicenseNot gradedqualityFmaintenanceCheck domain name availability via RDAP. Single lookups, bulk checks (up to 50), and smart name suggestions with registration links. No API key needed.MIT
- AlicenseNot gradedqualityCmaintenanceEnables RDAP domain lookup via ICANN standard, free, no authentication required.21MIT
- AlicenseAqualityDmaintenanceEnables domain lookups using the RDAP protocol, returning structured registration data, nameservers, and contacts from over 50 supported TLDs.1121MIT
- AlicenseAqualityCmaintenanceEnables real-time domain registration lookups via RDAP, including availability, expiration, and registrar details, with no API key required. Supports natural language queries like 'is example.com available?' or 'when does example.com expire?'.1MIT