Communication API Directory
Communication APIs with agent-ready surfaces — email, SMS, chat, voice.
5287
Sites Indexed
38
Avg Score
154 entries in this directory
Muddy Terrain Games | AI plugins for Unreal Engine. Integrate ChatGPT, Qwen, Meshy, Claude, Gemini, Llama, Mistral, Tripo, DeepSeek, and 30+ LLMs into your game with GenAI for Unreal.
muddyterrain.com
AI plugins for Unreal Engine. Integrate ChatGPT, Qwen, Meshy, Claude, Gemini, Llama, Mistral, Tripo, DeepSeek, and 30+ LLMs into your game with GenAI for Unreal.
llms.txt
API
AI bots
Schema.org
communication
50
+25 llms.txt
+15 structured API
missing +20 ai-plugin
beehiiv — The newsletter platform built for growth
beehiiv.com
Create, grow, and monetize your newsletter with easy-to-use newsletter tools. Build email newsletters and websites without any coding.
llms.txt
API
AI bots
Schema.org
communication
50
+25 llms.txt
+15 structured API
missing +20 ai-plugin
Infraestructura de Email para Agentes IA
uncorreotemporal.com
Buzones de email aislados vía API y servidor MCP. Diseñado para testing CI/CD, flujos de agentes IA y QA automatizado. Autenticado por API key. Gratis para empezar.
llms.txt
API
AI bots
Schema.org
communication
50
+25 llms.txt
+15 structured API
missing +20 ai-plugin
DNS Lookup, Email Deliverability Test & Network Tools - SPF, DKIM, DMARC Checker - mailX
themailx.com
Free email deliverability test, DNS lookup & IP lookup. Check MX records, SPF, DKIM, DMARC, blacklist status, SMTP servers & more. Analyze your domain instantly
llms.txt
API
MCP
communication
50
+25 llms.txt
+15 structured API
missing +20 ai-plugin
brag.fast | Keep building, we'll market
brag.fast
Turn shipped wins into branded visuals and post copy in seconds. Install the GitHub App, surface merges in your feed, brag when you're ready. Web app, MCP, or API. You approve every post.
llms.txt
API
AI bots
Schema.org
communication
50
+25 llms.txt
+15 structured API
missing +20 ai-plugin
AI Analytics for Shopify: Ask Questions, Get Real Answers | Ask AI
ask-ai-data-connector.co.uk
Your store's AI data analyst. Ask why sales dropped, which products are slipping, and what to fix in plain English, and get real answers from your live Shopify, Klaviyo, GA4 and ad data. Chat right inside Ask AI, or connect your own ChatGPT or Claude.
llms.txt
OpenAPI
Schema.org
communication
50
+25 llms.txt
+20 OpenAPI
missing +20 ai-plugin
FlowRunner | Run Salesforce Screen Flows in Outlook & Gmail
flow-runner.com
Run your Salesforce Screen Flows inside Outlook and Gmail. Records surface the moment an email opens, with context pre-filled. 14-day free trial.
llms.txt
API
AI bots
Schema.org
communication
50
+25 llms.txt
+15 structured API
missing +20 ai-plugin
Bending Spoons
meetup.com
Find Meetup events, join groups, or start your own. Make new friends and connect with like-minded people. Meet people near you who share your interests.
llms.txt
API
AI bots
Schema.org
communication
50
+25 llms.txt
+15 structured API
missing +20 ai-plugin
Postmark: Fast, Reliable Email Delivery Service | SMTP | API
postmarkapp.com
Send transactional and marketing emails and get them to the inbox on time, every time. Postmark is a fast and reliable email delivery service for developers.
llms.txt
API
AI bots
Schema.org
communication
50
+25 llms.txt
+15 structured API
missing +20 ai-plugin
Alertoscan — Automated Website Forensics & Threat Intelligence
alertoscan.io
Run deep, anti-detection live scans on arbitrary domains. Extract forensic signals, map Neo4j threat correlations, compute a deterministic 14-chain trust score.
llms.txt
API
AI bots
Schema.org
communication
50
+25 llms.txt
+15 structured API
missing +20 ai-plugin
LLMS Central - AI Bot Tracking, Citation Tracking & llms.txt Repository | LLMS Central
llmscentral.com
Track AI bots visiting your site + monitor when ChatGPT, Perplexity & Claude cite your domain. Free AI bot tracker with citation tracking, real-time analytics & llms.txt repository.
llms.txt
API
AI bots
Schema.org
communication
50
+25 llms.txt
+15 structured API
missing +20 ai-plugin
CarScout - Your Car Search, On Autopilot
usecarscout.com
Set your criteria once. We scan thousands of dealers nationwide. Matches find you with daily alerts.
llms.txt
API
AI bots
Schema.org
communication
50
+25 llms.txt
+15 structured API
missing +20 ai-plugin
Trilo — The AI Workspace for Teams | Chat, Tasks, Docs & Calendar
trilo.chat
Trilo is the AI workspace with autonomous coworkers that work 24/7. One app for meetings, tasks, docs, and calendar — no more tool sprawl.
llms.txt
API
AI bots
Schema.org
communication
50
+25 llms.txt
+15 structured API
missing +20 ai-plugin
Duckie - AI Support Agents
duckie.ai
AI support agents that resolve tickets end to end. Duckie handles your customer support autonomously, learning from your knowledge base to deliver instant, accurate responses 24/7.
llms.txt
API
AI bots
Schema.org
communication
50
+25 llms.txt
+15 structured API
missing +20 ai-plugin
Promptmonitor - Best AI Visibility Optimization / GEO Tool
promptmonitor.io
Promptmonitor helps you track and optimize your company's visibility across ChatGPT, Perplexity, and other AI/LLMs. Get mentioned in AI with Promptmonitor.
llms.txt
API
Schema.org
communication
45
+25 llms.txt
+15 structured API
missing +20 ai-plugin
Digital Marketing Agency | Book A Free Strategy Call | Pathfinder Marketing
pathfindermarketing.com.au
Pathfinder Marketing is an Australian-based performance marketing agency that measures every campaign on profit, not vanity metrics. SEO, Google Ads, social media and more - book a free strategy call today.
llms.txt
API
Schema.org
communication
45
+25 llms.txt
+15 structured API
missing +20 ai-plugin
AI Email Marketing Software - Automate & Optimize Campaigns
mailmodo.com
Try this AI email marketing tool to create emails, automate journeys, and add interactivity to drive better conversions.
llms.txt
API
Schema.org
communication
45
+25 llms.txt
+15 structured API
missing +20 ai-plugin
Beekeeper Is Now Part of LumApps | Frontline Platform
beekeeper.io
Beekeeper's mobile-first frontline experience is now part of the LumApps AI Employee Hub. Same tools, same login, bigger possibilities for your workforce.
llms.txt
API
Schema.org
communication
45
+25 llms.txt
+15 structured API
missing +20 ai-plugin
Bandwidth | Solve Global Telecomplexity
bandwidth.com
Bandwidth is an enterprise communications platform with voice, messaging, and emergency APIs for your communications stack.
llms.txt
API
Schema.org
communication
45
+25 llms.txt
+15 structured API
missing +20 ai-plugin
ably.io
ably.io
Ably is the realtime platform built for scale and reliability. Power live chat, messaging, collaborative apps, and AI experiences that never drop.
llms.txt
API
Schema.org
communication
45
+25 llms.txt
+15 structured API
missing +20 ai-plugin
45
+25 llms.txt
+15 structured API
missing +20 ai-plugin
AdPlug | Google Ads MCP & LinkedIn Ads MCP
adplug.app
Google Ads and LinkedIn Ads MCP for Claude and ChatGPT. Connect your ad accounts via MCP to audit performance, compare channels, prepare reports, and stage safe changes.
llms.txt
API
Schema.org
communication
45
+25 llms.txt
+15 structured API
missing +20 ai-plugin
AIECOS | Custom Enterprise AI Operating Systems & Agents
aiecos.ai
AIECOS designs and builds custom AI Operating Systems (AI OS) for enterprises. Automate workflows, Sales AI, Customer Support AI, and centralized data management.
llms.txt
API
Schema.org
communication
45
+25 llms.txt
+15 structured API
missing +20 ai-plugin
Free Social Media Engagement that Helps Boost Your Content | Upvote.club
upvote.club
Upvote Club supports 19 social networks with 100+ engagement actions in one dashboard. Add links to your posts and get free engagement from real users.
llms.txt
API
Schema.org
communication
45
+25 llms.txt
+15 structured API
missing +20 ai-plugin
WhatsApp and phone system automation for Sales, Marketing and Customer Support — 2Chat
2chat.co
2Chat is a highly programmable AI-native phone system with WhatsApp and SMS integrations, built for modern businesses.
llms.txt
API
Schema.org
communication
45
+25 llms.txt
+15 structured API
missing +20 ai-plugin
Every receipt from your inbox, automatically | Receiptor AI
receiptor.ai
Turn hours of manual bookkeeping into minutes of automated magic. Extract receipts from emails, WhatsApp, and uploads—instantly categorized and audit-ready.
llms.txt
API
Schema.org
communication
45
+25 llms.txt
+15 structured API
missing +20 ai-plugin
AgentCat — Analytics and observability for Claude Connectors and ChatGPT Apps
agentcat.com
Analytics and observability for Claude Connectors and ChatGPT Apps. Trace every session, uncover agent intent, and identify issues as they come up.
llms.txt
API
Schema.org
communication
45
+25 llms.txt
+15 structured API
missing +20 ai-plugin
AI-Powered Service Platform | Zendesk
zendesk.com
Move beyond deflection with AI agents that resolve issues end-to-end. Improve service quality, speed, and scale. Start your free trial.
llms.txt
API
Schema.org
communication
45
+25 llms.txt
+15 structured API
missing +20 ai-plugin
Intercom | The only helpdesk designed for the AI Agent era
intercom.com
The only helpdesk with a natively integrated AI Agent. Deliver perfect customer experiences with the highest-performing platform. Start your free trial today.
llms.txt
API
Schema.org
communication
45
+25 llms.txt
+15 structured API
missing +20 ai-plugin
Customer.io: AI-Powered Customer Engagement Platform
customer.io
Customer.io is a customer engagement platform for creating personalized journeys across email, push, SMS, and in-app messaging.
llms.txt
API
Schema.org
communication
45
+25 llms.txt
+15 structured API
missing +20 ai-plugin
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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