Validates email syntax and MX records. x402 payment required (testnet USDC).
Validates email syntax and MX records. x402 payment required (Base mainnet USDC).
| Name | Required | Description | Default |
|---|---|---|---|
| emails | Yes | Email addresses to validate | |
| checkMx | No | Look up the domain's MX records (set false to only check syntax) | |
| payment | No | x402 payment payload (base64 JSON), signed EIP-712 exact/transferWithAuthorization. Omit on the first call — the tool will return payment requirements (accepts[]) as an error result. |
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
With no annotations, the description must carry the full burden of behavioral disclosure. It states 'x402 payment required,' but fails to disclose the two-step flow (first call without payment returns accepts[] requirements), which is critical for successful invocation. It also omits return value expectations.
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 two sentences with no filler, and the core purpose is front-loaded before the payment caveat. Every word earns its place.
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?
The schema provides detailed parameter semantics, but no output schema exists and the description does not explain return values or the payment error flow. The payment parameter description partially compensates, but the top-level description is not fully complete for a tool with a non-obvious payment gate.
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?
Schema coverage is 100%, and each parameter has a description. The tool description doesn't add semantic detail beyond the schema, such as formatting or constraints, so baseline 3 is appropriate.
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 uses the specific verb 'validates' with a clear resource: 'email syntax and MX records.' This precisely identifies the tool's core function, leaving no ambiguity about what it does.
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 clearly implies the tool is for email address validation, and the payment note signals a precondition. There are no sibling tools, so no alternatives or when-not-to-use conditions are needed; however, no explicit usage context is provided.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Recent tool additions, removals, and schema changes observed during successful MCP inspections. Dates show when Glama detected each change.
email_validatorClaiming proves that you control a remote MCP connector. It does not move, proxy, or interrupt the server.
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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.
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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
To improve your MCP server's ranking:
Claim ownership of the server listing
Complete the server profile with an accurate description and thumbnail
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Keep tool definitions clear and complete to earn a high Tool Definition Quality Score (TDQS)
Route real usage through the Glama Gateway; more recorded successful server uses also improve the ranking
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.
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Extracts emails from texts. x402 payment required (testnet USDC).
Verify emails — deliverability, disposable/role/free detection, MX validity, domain age.
Email verification for AI agents — verify, clean & validate emails; self-onboard + crypto pay
Fast email validation at the edge: syntax, MX records, disposable-domain detection.
Add one secure layer between your agents and this server.
Only one tool exists, so there is no possibility of confusion with other tools. Its purpose is clearly distinct by default.
The single tool name 'email_validator' directly mirrors the server name and follows a clear snake_case convention. With only one tool, naming consistency is trivially maintained.
The server is extremely minimal with only one tool. While this feels thin, it aligns with the narrow purpose of email validation, making the count borderline but not inappropriate.
The tool covers both syntax validation and MX record checking, which are the core operations for the stated domain. No obvious missing functionality for a basic email validator.