COMPETITOR MONITORING FOR PLUGIN DEVELOPERS

Track competitors while you build your plugin.

Follow your plugin and competitors. Review changes to their positioning, capabilities and published terms, with dated source evidence.

Explore 11,121 plugins across 14 categories.

Selected:transactional email API ×

Follow up to 10 plugins for free. Newest means first added to our catalog, not the publisher’s release date.

All plugins 12

1–12 of 12

Plugin growth → Export this page ↓

All words must match. Use quotes for an exact phrase.

Compare plugins by developer and category
Plugin / developer	Category	Follow
AgentiSendAgentisend FZCOAgentiSend is a transactional email API for applications and AI agents. Send receipts, password resets, sign-in codes and alerts from you... Publisher subtitle Transactional email API Show in context → 4 more matching sources Publisher keywords · listing MCP server MCP connector transactional email API transactional email AI agents email API Claude Cursor sending domain email deliverability email for AI agents ChatGPT send email Show in context → Publisher description AgentiSend is a transactional email API for applications and AI agents. Send receipts, password resets, sign-in codes and alerts from your own verified domain, with a message log, a preflight that checks a send without sending it, sendi… Show in context → Publisher full description AgentiSend is a transactional email API for applications and AI agents. Send receipts, password resets, sign-in codes and alerts from your own verified domain, with a message log, a preflight that runs every check a real send runs witho… Show in context → Publisher capabilities · listing …a receipt, password reset, sign-in code or alert from your verified domain Send up to 500 different emails in one call, with a result per item Schedule an email for later, then cancel or reschedule it Preflight a send: every check a real send runs, nothing sent Check how many emails this key may sti… Show in context →	Developer ToolsVersion 1.2.0	View details →
Send & Retain EmailsSend & RetainEmail automation for a company's transactional and marketing email: create and send on-brand react.email templates, build event-triggered... Publisher keywords · listing email api email marketing send email email lifecycle email transactional email email automation react email email templates deliverability resend sendgrid onboarding emails abandoned cart win-back Show in context → 5 more matching sources Publisher full description Send & Retain is an email automation service. It creates, sends and tracks a company's transactional and marketing email — order confirmations, welcome emails, abandoned-cart reminders, win-back campaigns — and this plugin lets you run all of it from a conversation: the templates, the a… …plaints suppress addresses automatically, and complaint suppressions can never be removed. Provider API keys are entered only on the Send & Retain settings page, never in chat. Limitations: email only (no SMS, push or social posting). Sending needs a connected provider or platform sending and a veri… Show in context → Publisher capabilities · listing Brand kit and starter programme per company Author, render and publish react.email templates Event-triggered automations, created paused Contacts, attributes and segments Delivery and engagement metrics Message log and deliverability triage Sending setup: provider, domain, senders, API keys Show in context → Publisher description Email automation for a company's transactional and marketing email: create and send on-brand react.email templates, build event-triggered automations, manage contacts and segments, set up sending, and track delivery, from chat. Show in context → Plugin name Send & Retain Emails Show in context → Publisher subtitle Email templates & automations Show in context →	CommunicationVersion 1.0.6	View details →
EmailitEmailit Publisher full description Emailit is an email delivery platform for transactional email, SMTP and email marketing. This plugin lets ChatGPT and Codex work with your Emailit account: send transactional email from your verified sending domains, check whether a message w… …tGPT and Codex ask you before running them. Codex users also get skills for integrating the Emailit API and SDKs into their code. Show in context → 6 more matching sources Publisher keywords · listing emailit email transactional-email email-marketing deliverability smtp webhooks Show in context → Publisher description Send transactional email, run campaigns and automations, manage contacts and sending domains, and fix deliverability with Emailit. Show in context → Plugin name Emailit Show in context → Package name emailit Show in context → Publisher subtitle Send email and run campaigns Show in context → Publisher capabilities · listing Send and schedule email Track delivery and bounces Set up and verify domains Manage contacts and audiences Draft and send campaigns Configure webhooks Show in context →	CommunicationVersion 1.0.1	View details →
Nitrosend - AI Email MarketingNitrosend Pty Ltd Publisher description Nitrosend is AI-native email marketing you run from ChatGPT. Plan, write, design and send newsletters, campaigns and automated flows by conversation, from first draft to actual send. What you can do: - Write and send email… …delivery Use managed sending or configure your provider in the Nitrosend app. Application-triggered transactional email uses the REST API or SDK. Get started: connect Nitrosend from the ChatGPT Plugin Directory, then sign in or create an account in the same step. Show in context → 3 more matching sources Publisher keywords · listing email marketing newsletters email campaigns marketing automation transactional email email Show in context → Plugin name Nitrosend - AI Email Marketing Show in context → Publisher subtitle Email marketing & newsletters Show in context →	Business & OperationsVersion 2.1.5	View details →
PostlanePostlane Publisher description Send transactional email with the Postlane API. Use for welcome mail, password resets, receipts, and notifications. Show in context → 4 more matching sources Publisher full description Adds Postlane transactional email to your app: welcome mail, email verification, password resets, receipts, and notifications. The skill teaches the agent the Postlane HTTP API (POST /v1/emails with an Idempotency-Key), saved templates, error handling, and the DNS records needed to verify a sending domain. It is for developers who want their app to send email from their… Show in context → Publisher subtitle Send transactional email Show in context → Publisher capabilities · listing Add transactional email to an app Use saved email templates Set up a sending domain Show in context → Publisher keywords · listing email transactional postlane password-reset notifications Show in context →	Developer ToolsVersion 0.1.0	View details →
LoopsLoopsEmail marketing, transactional email, and email automation for SaaS. Build waitlist, onboarding, trial, and dunning emails, draft campaig... Publisher keywords · listing loops loops-email email email-software software-email saas saas-email email-marketing transactional-email email-automation lifecycle-email onboarding-emails welcome-emails waitlist-emails trial-emails dunning-emails failed-payment-emails win-back-emails newsletters product-update-email… …saas-email-marketing newsletter-software email-campaign-software product-email email-metrics email-api email-mcp mcp react nextjs contacts mailing-lists events lmx deliverability Show in context → 3 more matching sources Publisher full description Loops MCP connects ChatGPT to Loops, the email software for SaaS teams and startups. Run email marketing, transactional email, and email automation from ChatGPT through the Loops email API. Build SaaS lifecycle emails like waitlist, welcome, onboarding, trial ending, failed payment (dunning), and win-back emails. Draft campaigns, newsletters, and product update emails for mailing li… Show in context → Publisher description Email marketing, transactional email, and email automation for SaaS. Build waitlist, onboarding, trial, and dunning emails, draft campaigns, and manage contacts with Loops. Show in context → Publisher subtitle Email marketing for SaaS Show in context →	Business & OperationsVersion 0.2.2	View details →
SenderKitSenderKitBuild complete messaging experiences right from your AI coding agent. Add transactional email, SMS, push, and web-push — welcome emails, ... Publisher keywords · listing senderkit transactional-email transactional-messaging email email-api send-email sms push-notifications web-push notifications notification-system otp verification-code magic-link password-reset-email receipts resend-alternative sendgrid-alternative postmark-alterna… Show in context → 3 more matching sources Publisher description Build complete messaging experiences right from your AI coding agent. Add transactional email, SMS, push, and web-push — welcome emails, OTPs, receipts, and more — then create templates, send, and monitor every message your app sends. One messaging layer, no provider lock-in. Show in context → Publisher full description Build complete messaging experiences right from your AI coding agent. Add transactional email, SMS, push, and web-push — welcome emails, OTPs, receipts, and more — then create templates, send, and monitor every message your app sends. One messaging layer, no provider lock-in. Wire it int… Show in context → Publisher subtitle Email, SMS & push for your app Show in context →	Developer ToolsVersion 1.0.1	View details →
MailChannelsMailChannels CorporationBuild and operate outbound email with MailChannels using official SDK and platform guidance Publisher keywords · listing email transactional-email mailchannels deliverability webhooks multi-tenant Show in context → 3 more matching sources Publisher full description Evaluate MailChannels and implement its Email API with official JavaScript, Python, and PHP SDK guidance plus production controls for domains, webhooks, suppressions, multi-tenant operations, and safe automated sending. Show in context → Publisher subtitle Send email with MailChannels. Show in context → Publisher description Build and operate outbound email with MailChannels using official SDK and platform guidance Show in context →	Developer ToolsVersion 1.0.1	View details →
MillionSendCODARI GLOBAL, LLC Publisher full description MillionSend is an email-sending platform for transactional and marketing email. Once MillionSend is connected, ChatGPT works inside one MillionSend team that the user chooses when connecting, within the permissions the user grants. ChatGPT can r… …t be recalled. Text written by contacts or other third parties comes back marked as untrusted data. API keys and webhook signing secrets are never shown in ChatGPT; they stay in the MillionSend dashboard. Users disconnect at any time by revoking access under Settings > Connected apps in the MillionS… Show in context → 4 more matching sources Publisher keywords · listing email transactional email email marketing deliverability contacts Show in context → Publisher subtitle Send and track email Show in context → Publisher capabilities · listing Check sent emails and their delivery status Explain per-email Insights and team deliverability Send emails and schedule them after confirmation Manage contacts, segments, topics and suppressions Draft and send b… Show in context → Publisher description Send email from your verified domains, manage contacts, segments, broadcasts and templates, and check delivery and insights in your MillionSend account. Show in context →	CommunicationVersion 1.0.2	View details →
ResendResend Publisher description Resend helps users send transactional email, inspect delivery and request logs, manage audiences, domains, templates, broadcasts, automations, webhooks, API keys, and OAuth grants from ChatGPT using their own Resend credentials. Show in context → 1 more matching sources Publisher subtitle Email for developers Show in context →	Developer ToolsVersion 5.0.0	View details →
Sendly14930398 Canada Inc. Publisher description Sendly is an email platform for product teams: a transactional sending API, campaigns, visual workflow automations, contacts with custom fields, lists, dynamic segments, topic preferences, suppressions, sending-domain setup and analytics. The Sendly plugin lets ChatGPT r… Show in context → 1 more matching sources Publisher full description Sendly is an email platform for product teams: a transactional sending API, campaigns, visual workflow automations, contacts with custom fields, lists, dynamic segments, topic preferences, suppressions, sending-domain setup and analytics. The Sendly plugin lets ChatGPT r… Show in context →	Business & OperationsVersion 1.0.1	View details →
TPC BenchmarksThe Prompting Company Publisher full description See whether an AI coding agent can actually integrate a developer API, SDK or tool from its documentation, measured by The Prompting Company. Ask about a product or a category, such as search APIs or transactional email, and get measured results in chat: completion rate, passed, failed and blocked runs, average successful run time, and an overall score from 0 to 100 that averages an experience score (graded on… Show in context →	Developer ToolsVersion 1.0.0	View details →