Emailable provides an email verification API that allows developers to integrate real-time email validation into their applications, ensuring the accuracy and deliverability of email addresses.
Emailable provides an email verification API that allows developers to integrate real-time email validation into their applications, ensuring the accuracy and deliverability of email addresses. On Nagent, Emailable is exposed as a fully-configurable email integration that any agent can call — 5 actions, and API key authentication. No code is required to wire Emailable into your workflow — connect it once via the External Integrations panel and reuse it across every agent you build.
Agent builders use Emailable to automate the kinds of tasks email teams previously handled manually. Concrete examples — each one is a single agent step in Nagent — include:
Every action and trigger is paired with a structured input/output schema (visible in the sections below), so when you wire Emailable into Helix — our agentic agent builder — the editor knows exactly what each step expects and produces. Configure once, deploy anywhere across your Nagent agents.
Every operation an agent can call against Emailable, with input parameters and output schema. Drop these into any step of an agent built in Helix.
EMAILABLE_GET_ACCOUNT_INFOTool to retrieve account information including owner email and available credits. Use when you need to confirm account status before sending email verifications.
Output
Data from the action execution
Error if any occurred during the execution of the action
Whether or not the action execution was successful or not
EMAILABLE_GET_BATCH_STATUSTool to get the status and results of a batch verification job. Use after submitting a batch to check its progress.
Input parameters
The unique identifier for the batch verification job returned when creating a batch.
Output
Data from the action execution
Error if any occurred during the execution of the action
Whether or not the action execution was successful or not
EMAILABLE_O_AUTH_AUTHORIZEBuild an OAuth 2.0 authorization URL for the Emailable authorization code flow. Returns a URL to redirect users to for authorization. Upon successful authorization, users are redirected to your redirect_uri with an authorization code (valid for 10 minutes) that can be exchanged for access tokens.
Input parameters
An arbitrary string to maintain state between the request and callback. The server returns it unchanged. Used to prevent CSRF attacks.
Your OAuth App's client ID from the Emailable developer dashboard
The registered redirect URI of your OAuth App where the authorization code will be sent
Must be 'code' for authorization code flow. This is the only supported value.
Output
Data from the action execution
Error if any occurred during the execution of the action
Whether or not the action execution was successful or not
EMAILABLE_VERIFY_BATCH_EMAILSSubmit a batch of email addresses for asynchronous verification. Returns a batch ID immediately. Use this for bulk email validation (2 to 50,000 emails). For single emails, use EMAILABLE_VERIFY_EMAIL instead. The batch is processed asynchronously - use EMAILABLE_GET_BATCH_STATUS with the returned batch ID to check progress and retrieve verification results.
Input parameters
List of email addresses to verify. Must contain at least 2 emails (use EMAILABLE_VERIFY_EMAIL for single emails). Maximum 50,000 emails per batch.
Output
Data from the action execution
Error if any occurred during the execution of the action
Whether or not the action execution was successful or not
EMAILABLE_VERIFY_EMAILTool to verify a single email address and return detailed results. Use when you need to check email deliverability and risk.
Input parameters
The email address to verify
Output
Data from the action execution
Error if any occurred during the execution of the action
Whether or not the action execution was successful or not
No publicly available marketplace agent is found using this tool yet. There are 34 agents privately built on Nagent that already use Emailable.
Build on Nagent
Connect Emailable to any Nagent agent in minutes — no API key management, no boilerplate. Just configure and deploy.
The five questions agent builders ask before adopting a new integration.
Open the External Integrations panel inside Nagent (app.nagent.ai/externalIntegration), find Emailable, and click "Connect Now." You'll authenticate with an API key — Nagent handles credential storage and refresh automatically. Once connected, Emailable is available to any agent in your workspace.
No. Nagent provides no-code integration for every tool. Once Emailable is connected, you configure its 5 actions directly in the agent builder UI — no API calls, no boilerplate, no schema management.
Helix — Nagent's agentic agent builder — lets you drop Emailable steps into any workflow visually. Pick an action (e.g., one of those listed above), fill in the inputs (Helix knows the required vs. optional schema for each parameter), and connect it to upstream/downstream steps. Triggers run as the entry point of an agent, so when a Emailable event fires, the agent kicks off automatically.
Every Emailable action and trigger ships with a fully-typed schema — input parameters with name, type, required flag, and description, plus the output payload shape. The schemas are documented in the sections above. Helix uses these schemas to validate your configuration at build time and to type-check the data flowing between steps.
Yes. While Emailable ships with 5 pre-built email actions, you can layer custom logic around them inside Helix — pre/post-processing steps, conditional branches, retries, or stitching Emailable together with other connected tools. For deeper customization, talk to our team about Nagent's Agentic AI Lab — forward-deployed engineers who build Emailable-based workflows tailored to your business.