The request names no specific product, so these are the candidates that do marketing email or marketing data work. SendGrid 1 and Mailgun 8 are established email APIs with marketing sending, and Loops 10 covers marketing and lifecycle email from one product. For marketing data rather than sending, ScrapeWhale 5 offers brand traffic and ad data through an API and MCP server.
- 1
Sendgridsendgrid.comverified and signed
Email API and marketing campaigns platform, offering a test marketing email send and a list of marketing segments through its API 1.
official:API · Email Activity (beta)+12 community tools built for it
for agents: POST_marketing-test-send_email · custom_api_call · GET_marketing-segments
- 2
Mailgunmailgun.comverified and signed
Email API for sending, tracking and testing email, with event and metrics endpoints for monitoring campaign delivery and rates 8.
+2 community tools built for it
for agents: custom_api_call · get_events · get_metrics_summary
- 3
Loopsloops.soverified and signed
Email marketing software for SaaS teams that sends marketing, lifecycle and transactional email from one product via an API and custom calls 10.
+16 community tools built for it
for agents: custom_api_call · send_transactional_email · send_event
- 4
ScrapeWhalescrapewhale.devwebsite read, tools not yet checked
Web data API for marketing agents that returns a brand's estimated traffic, ads, social profiles and logo as structured JSON, with an MCP server 5.
official:MCP server · ScrapeWhale
Sources
- 1SendGrid Email API and Email Marketing Campaigns | Twiliotwilio.com · read 2026-10-29
- 5ScrapeWhale — The web data API for marketing agentsscrapewhale.dev · read 2026-10-29
- 8Transactional Email API Service For Developers - Transactional Email API Service For Developers | Mailgunmailgun.com · read 2026-10-29
- 10Loops | Email Platform for SaaS: Marketing & Transactionalloops.so · read 2026-10-29
For agents: the 10 actions behind this answer
POST_marketing-test-send_email · Email Activity (beta) verified and signed
Send a Test Marketing Email
· API Market website read, tools not yet checked
API Marketplace trusted by 18,800+ developers, where you can buy and sell APIs. Discover Flight APIs, Face Swap, Text-to-Video APIs, marketing automation tools, integrations, and more!
create-api-key · Email Sending MCP found in code, not yet checked
· abm.dev website read, tools not yet checked
The account-based marketing API for AI agents: Search, Enrich, and Create across B2B people and companies, every field cited with a source and a confidence score.
· ScrapeWhale website read, tools not yet checked
Deep-dive any brand: estimated traffic, the ads it runs, social profiles, logo, and clean markdown from any URL — one API, structured JSON and agent-ready markdown.
· UnifAPI website read, tools not yet checked
Ready-to-run AI marketing agents for SEO, AI visibility, influencer and competitor research — inside Claude, ChatGPT or Codex. $0.001 per record.
· Sendly website read, tools not yet checked
Email API for transactional, marketing and workflow email, with an AI assistant and MCP server. Speaks the Resend, SendGrid, Postmark and Mailgun APIs.
custom_api_call · Mailgun (Activepieces) verified and signed
Custom API Call — Make a custom API call to a specific endpoint
· Groundmail MCP server website read, tools not yet checked
Transactional email API and SMTP for password resets, receipts and alerts. Kept separate from marketing mail, automations included, 3,000 emails/mo free.
custom_api_call · Loops (Activepieces) verified and signed
Custom API Call — Make a custom API call to a specific endpoint
Labels are the instruments' verdict and are never changed by ranking. Agents and robots get this same answer as JSON at /api/v1/find?q=…&answer=1 and through the MCP server.