Agent
Discoverability
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Claude Connector

api.replylayer.ai

Give your AI assistant its own email: read, reply to and send mail from the mailboxes you choose, with every message screened for unsafe content first.

View in the Claude registry
Category
Productivity
Integration details

Description

ReplyLayer gives AI assistants a real email address that you control. Connect it, sign in to ReplyLayer, and pick which mailboxes the assistant may use: it can act only on those, and you can revoke it from your dashboard at any time. Your assistant can list and read messages and threads, reply in a thread, send new mail, draft and schedule messages, and triage anything ReplyLayer has held for review. Every inbound and outbound message is screened for prompt injection, phishing and unsafe content before your assistant sees it or before it goes out, and each send returns a clear outcome (sent, held for review, or blocked) so your assistant knows what happened. ReplyLayer is for transactional and reply-driven email, not bulk or marketing mail, and requires an account for adults 18 and over. On the free trial you can email anyone who confirms by link, reply to people who write to you, and add up to 10 people you know; add $5 of credit or upgrade to email anyone.

Integration type
Connector
Verification status
Community connector
Platform
Claude
Category
Productivity

The broad Category that contains the Primary Subcategory.

Primary Subcategory
Email APIs & Programmable Inboxes

The Primary Subcategory used for this profile’s headline score.

Secondary Subcategories
None listed

Other Subcategories where the Integration is listed.

Brand
ReplyLayer
Access
Account required
First tracked
2026-09-29
Tool count
40
Geography
US
Agent DiscoverabilityClaude Discoverability Score

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What discovery looks like

Claude showing a list of relevant Connectors in a conversation

Claude can surface verified Connectors when they match a user’s Prompt.

Primary Subcategory

Competing in Claude Email APIs & Programmable Inboxes

View Category
8 scoredVerified connectors by score · Community connectors A–Z
Primary Subcategory
1Resend58/100
2AgentMail44/100
3Gmail31/100
4Inkbox27/100
5Superhuman Mail12/100
—AgentiSendPending VerificationGet notified
—AgentMailerPending VerificationGet notified
—api.replylayer.aiPending VerificationGet notified
—api.temp-mail.ioPending VerificationGet notified
—Cooper EmailPending VerificationGet notified
—MailerooPending VerificationGet notified
—ProntunoPending VerificationGet notified
—RobotomailPending VerificationGet notified
Tools

40 tools agents can invoke

Recommended guideHow to get your Claude Connector organically discoveredFollow the practical steps agents use to find, shortlist, and choose your Connector.Read guide
FAQs

api.replylayer.ai FAQ

How the directory, categories and Discoverability Score work.

Read the methodology
How do I improve a Community connector's discoverability?

The levers are the listing surface agents actually read: names, descriptions, keywords, tool metadata, and registry health. Which lever matters depends on where discovery breaks, which is what continuous measurement shows.

What are api.replylayer.ai alternatives on Claude?

As of 2026-10-01, api.replylayer.ai competes with Resend, AgentMail, Gmail, Inkbox, Superhuman Mail, Microsoft 365, MailerLite, Infobip Message, AgentiSend, AgentMailer, api.temp-mail.io, Cooper Email, Maileroo, Prontuno, Robotomail in Claude Email APIs & Programmable Inboxes, ranked by public Discoverability Score.

Where is this profile measured?

This profile uses the geography attached to the latest public registry snapshot: US. Locale tags are intentionally omitted.