emailvalidation.io valid

Automatically discovered from public files. Ownership management is optional. Inclusion does not imply endorsement or publisher participation.

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Claim my listing on Agent Web Map for emailvalidation.io:
1. POST https://agentwebmap.com/v1/sites/emailvalidation.io/claims and keep claim_id and claim_secret private.
2. Publish the proof: add the line "AgentWebMap ownership: <token>" (token from step 1) to https://emailvalidation.io/llms.txt, or use the DNS, meta-tag or well-known method the response describes.
3. POST https://agentwebmap.com/v1/sites/emailvalidation.io/verify with {"claim_id": "...", "claim_secret": "..."}.
4. Save the api_key from the answer; it manages the listing (PATCH https://agentwebmap.com/v1/sites/emailvalidation.io).
MCP equivalent: tools begin_ownership_claim, then verify_domain, at https://agentwebmap.com/mcp. Docs: https://agentwebmap.com/docs#verify

Corrections or removal requests: contact the directory. Ownership management is optional.

emailvalidation.io

Free email checker and validator: verify any email address with syntax, MX record and live mailbox checks, validate lists in bulk or use the API.

Their llms.txt

The beginning of the file, from our validated copy saved 2026-10-21T09:46:36.304Z. Cached copy · Source on emailvalidation.io

# emailvalidation.io

> Free email checker and validator: verify any email address with syntax, MX record and live mailbox checks, validate lists in bulk or use the API.

AI coding agents: run curl -s https://emailvalidation.io/agents.md and follow it (setup, API key, first call, plans).

- Website: https://emailvalidation.io/
- Documentation: https://emailvalidation.io/docs/
- OpenAPI spec: https://emailvalidation.io/docs/openapi.yaml
- Documentation llms.txt: https://emailvalidation.io/docs/llms.txt
- Full marketing content: https://emailvalidation.io/llms-full.txt
- Deutsche Version: https://emailvalidation.io/de/llms.txt

## Get an API key
- Sign up for a free API key: https://app.emailvalidation.io/register (free plan: 100 validations a month, up to 10 requests a minute).
- Send the key in the `apikey` header, or as the `apikey` query parameter (`?apikey=...`).
- Keep it in an environment variable, e.g. `EMAILVALIDATION_KEY`.
- First call: `curl -H "apikey: $EMAILVALIDATION_KEY" "https://api.emailvalidation.io/v1/info?email=support@emailvalidation.io"`
- MCP server: https://api.emailvalidation.io/mcp (streamable HTTP, the same `apikey` header).

## Documentation
- [API Documentation](https://emailvalidation.io/docs/): Endpoints, authentication, request/response formats and SDKs.
- [OpenAPI 3.1 spec](https://emailvalidation.io/docs/openapi.yaml): Machine-readable definition of every endpoint.
- [MCP server](https://api.emailvalidation.io/mcp): Hosted Model Context Protocol endpoint — AI agents can call the API as native tools (streamable HTTP, `apikey` header).

## Pricing
- [Email Validation API Pricing: Free, Small, Medium & Large](https://emailvalidation.io/pricing/): emailvalidation.io pricing: Free plan with 100 credits a month and 10 requests per minute, no card. Small $9.99 for 5,000 credits. Medium $34.99, Large $94.99.

## Guides & tutorials
- [Email Regex: Patterns That Work (and Their Limits)](https://emailvalidation.io/blog/regex-email-validation/): A tested email regex for JavaScript, Python, PHP, Java, Go and Ruby, the HTML5 pattern, a test table of 25 tricky addresses, and why regex is not verification.

## Free tools
- [Is this a real email address?](https://emailvalidation.io/tools/email-validator/): Is this a real email address? Check before you send: free email validator with syntax, domain, MX and live mailbox checks, plus disposable, role and typo flags.
- [Email spam checker](https://emailvalidation.io/tools/email-spam-checker/): Email spam checker: send your email to a free test address and get its SpamAssassin score, SPF, DKIM and DMARC results, blocklist checks and fixes.
- [Bulk email validator](https://emailvalidation.io/tools/bulk-email-validator/): Bulk email verifier: paste up to 50 addresses or a CSV, see which are valid, catch-all, risky or invalid, and download the results. A few an hour are free.
- [Email header analyzer](https://emailvalidation.io/tools/email-header-analyzer/): Free email header analyzer: pa
…

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Machine-readable: GET /v1/resolve?q=emailvalidation.io · GET /v1/domain/emailvalidation.io · this page as Accept: application/json or text/markdown · MCP lookup_domain