Communication API Directory
Communication APIs with agent-ready surfaces — email, SMS, chat, voice.
5688
Sites Indexed
39
Avg Score
175 entries in this directory
D
Twilio SendGrid | SendGrid Docs | Twilio
docs.sendgrid.com
Learn to send transactional and marketing emails at scale with the platform that offers a 99% deliverability rate. From quickstarts and onboarding guides to full API reference, the Twilio SendGrid docs have everything you need to send email at scale.
API
Schema.org
communication
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
Tumblr
tumblr.com
Tumblr is the place you go to be yourself on the internet. No performance, no perfection. Just you, and the people who get it.
API
AI bots
communication
20
+15 structured API
+5 AI robots
missing +25 llms.txt
Find the Best Concerts Near You, Tour Dates & Tickets Worldwide | Songkick
songkick.com
Find live music near you, track your favorite artists, get instant concert alerts and buy tickets for all the best upcoming concerts.
API
AI bots
communication
20
+15 structured API
+5 AI robots
missing +25 llms.txt
Home | Twitch Developers
dev.twitch.tv
Live Streaming, Meet Developers.
API
Schema.org
communication
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
SigParser | Uncover Hidden Contacts & Streamline Email Parsing
sigparser.com
SigParser: Supercharge your marketing and contact data quality with automated contact extraction from emails, calendars, and address books in Outlook and Gmail.
API
Schema.org
communication
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
Find email addresses and send cold emails • Hunter
hunter.io
Hunter is the leading solution to find and verify professional email addresses. Start using Hunter and connect with the people that matter for your business.
API
Schema.org
communication
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
SMS Messaging, Voice, Email, Video & Verification APIs | Sinch
sinch.com
Unlock meaningful conversations across the customer journey with programmable SMS, voice, email, video, & verification APIs!
API
Schema.org
communication
20
+15 structured API
+5 Schema.org
missing +25 llms.txt
Bulk SMS South Africa | SMS Marketing | Zoom Connect
zoomconnect.com
Bulk SMS. We provide a user friendly and affordable Bulk SMS / SMS Marketing platform online.
API
communication
15
+15 structured API
missing +25 llms.txt
Campsite — Work communication for distributed teams
campsite.com
Campsite is designed for distributed teams to cut through the noise of daily work — move faster with more transparent, organized, and thoughtful conversations.
API
communication
15
+15 structured API
missing +25 llms.txt
15
+15 structured API
missing +25 llms.txt
Auto Post & Repost Videos Across Social Media
taisly.com
Want to post and repost your videos to TikTok, Instagram Reels, YouTube Shorts and others? Our automated service lets you publish your content to multiple platforms
API
communication
15
+15 structured API
missing +25 llms.txt
Login
| SimpleLogin
app.simplelogin.io
Protect your email address with email ALIAS. Create a different email alias for each website. No more phishing, or spam.
API
communication
15
+15 structured API
missing +25 llms.txt
Pushover: Simple Notifications for Android, iPhone, iPad, and Desktop
pushover.net
API
communication
15
+15 structured API
missing +25 llms.txt
15
+15 structured API
missing +25 llms.txt
X Developer Platform
developer.x.com
Use the X API with an all-new Developer Console and consumption-based billing. No fixed monthly costs, no monthly caps.
API
communication
15
+15 structured API
missing +25 llms.txt
Pusher | Leader In Realtime Technologies
pusher.com
Simple, scalable and reliable. Hosted realtime APIs loved by developers and trusted by giants. Build live dashboards, notifications, geotracking, chat and more.
API
communication
15
+15 structured API
missing +25 llms.txt
15
+15 structured API
missing +25 llms.txt
I
15
+15 structured API
missing +25 llms.txt
The SMS Works
thesmsworks.co.uk
Easy and fast SMS integration. SMS API account comes with free reply number and test credits. Developers love our copy and paste code samples and top-notch support.
API
communication
15
+15 structured API
missing +25 llms.txt
M
Model Context Protocol (MCP) | Intercom and Fin Developer Platform
mcp.intercom.com
Faster resolutions, higher CSAT, and lighter support volumes with the only platform to combine the power of automation and human customer support.
API
communication
15
+15 structured API
missing +25 llms.txt
Magic Studio : Make beautiful images with AI
magicstudio.com
With Magic Studio anybody can use AI to create images, add & remove objects, backgrounds and more. Make beautiful images for product pages, ads & social media.
API
communication
15
+15 structured API
missing +25 llms.txt
ShareGPT: Share your wildest ChatGPT conversations with one click.
sharegpt.com
ShareGPT is a Chrome extension that allows you to share your wildest ChatGPT conversations with one click.
API
communication
15
+15 structured API
missing +25 llms.txt
F
file.io - Super simple file sharing
file.io
Sharing files with file.io is convenient, anonymous and secure. Just upload files and share the links via email, SMS, Slack, Discord, etc. Easy-to-use REST API.
API
communication
15
+15 structured API
missing +25 llms.txt
Grow More with SMS | Mobile Text Alerts
mobile-text-alerts.com
Mobile Text Alerts: your all-in-one SMS solution for marketing, sales, alerts, and support. Engage your audience, drive sales, and send critical updates with ease.
API
communication
15
+15 structured API
missing +25 llms.txt
Wire NHS into your agent — MCP server
Add Not Human Search as an MCP tool. Your agent can call search_agents, get_site_details, get_stats, and submit_site at runtime.
Claude Code
claude mcp add --transport http nothumansearch https://nothumansearch.ai/mcp
Other clients: point any MCP-compatible tool at
https://nothumansearch.ai/mcp (streamable-http transport).Use NHS via REST
Prefer plain HTTP? Hit the search endpoint directly.
Search API
curl "https://nothumansearch.ai/api/v1/search?q=payment+API"
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