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CaptainVerify

CaptainVerify is a service that helps businesses verify and clean their email and mobile number databases. This improves marketing campaign performance, reduces bounce rates, and enhances overall reputation. They offer various tools, APIs, and documentation to support this process.

For agents: CaptainVerify helps businesses verify and clean email and mobile number databases to improve campaign performance and reduce bounces; offers tools and APIs.

email verificationmobile number validationlist cleaningbounce rateemail marketingdata hygiene

Their llms.txt

The beginning of the file, from our validated copy saved 2026-10-20T20:49:48.104Z. Cached copy · Source on captainverify.com

# CaptainVerify

CaptainVerify is a service that helps businesses verify and clean their email and mobile number databases.  This improves marketing campaign performance, reduces bounce rates, and enhances overall reputation.  They offer various tools, APIs, and documentation to support this process.


## Data Verification Tools

### Email List Verification
**URL:** https://captainverify.com/email-list-verification.html

**Content:** This page details CaptainVerify's bulk email verification tool, designed to improve campaign performance by ensuring emails reach the inbox.

**Key topics:** Email list cleaning, email verification, inbox deliverability, campaign performance.


### HLR Lookup
**URL:** https://captainverify.com/hlr-lookup.html

**Content:**  This page describes CaptainVerify's HLR (Home Location Register) lookup service for verifying the validity of mobile phone numbers.

**Key topics:** Mobile number verification, HLR lookup, mobile number validation.


### Free Email Checker
**URL:** https://captainverify.com/mail-tester.html

**Content:** This page offers a free tool to instantly check the validity of a single email address.

**Key topics:** Free email verification, email address validation, email checker.


### Email Permutator
**URL:** https://captainverify.com/email-permutator.html

**Content:** This page provides a free tool to generate all possible email address combinations from a given name and domain.

**Key topics:** Email address generation, email combination generator, email permutator.


## APIs

### Email Verification API
**URL:** https://captainverify.com/api.html

**Content:** This page explains CaptainVerify's API for real-time and bulk email list cleaning.

**Key topics:** Email validation API, API integration, bulk email verification, real-time email verification.


### HLR Lookup API
**URL:** https://captainverify.com/api-hlr.html

**Content:** This page details the API for integrating CaptainVerify's HLR lookup functionality into applications.

**Key topics:** HLR lookup API, mobile number verification API, API integration.


### File Sending API
**URL:** https://captainverify.com/api-file.html
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Related sites

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

Automatically discovered from public files. Inclusion does not imply endorsement or publisher participation.

Claim my listing on Agent Web Map for captainverify.com:
1. POST https://agentwebmap.com/v1/sites/captainverify.com/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://captainverify.com/llms.txt, or use the DNS, meta-tag or well-known method the response describes.
3. POST https://agentwebmap.com/v1/sites/captainverify.com/verify with {"claim_id": "...", "claim_secret": "..."}.
4. Save the api_key from the answer; it manages the listing (PATCH https://agentwebmap.com/v1/sites/captainverify.com).
MCP equivalent: tools begin_ownership_claim, then verify_domain, at https://agentwebmap.com/mcp. Docs: https://agentwebmap.com/docs#verify

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