Account

Communication API Directory

Communication APIs with agent-ready surfaces — email, SMS, chat, voice.

5287
Sites Indexed
38
Avg Score
154 entries in this directory
Spook - Get organic traffic on auto-pilot
tryspook.com
Spook finds winnable Google & ChatGPT queries, writes SEO content, and publishes automatically, growing organic traffic while you focus on your business.
llms.txt ai-plugin OpenAPI API AI bots Schema.org MCP communication
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Mail a letter online in minutes | PostalForm
postalform.com
Upload a file or write a letter online, confirm addresses, and PostalForm prints and mails it for you. We prepare the envelope and postage and hand it to USPS.
llms.txt ai-plugin OpenAPI API AI bots Schema.org MCP communication
100
+25 llms.txt +20 ai-plugin
Free AI Email Marketing Platform | MisarMail
mail.misar.io
Free AI email marketing platform: send bulk campaigns, automate email flows, manage a shared inbox, and use your own domain or a free @misar.io address. No credit card required.
llms.txt ai-plugin OpenAPI API AI bots Schema.org communication
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InboxGuard — Email deliverability monitoring & DMARC reports
inboxguard.io
Continuous SPF, DKIM, DMARC, MTA-STS, BIMI, and 13-DNSBL monitoring for engineering teams shipping transactional and lifecycle email. Daily scans, instant alerts, hosted DMARC reports.
llms.txt OpenAPI API AI bots Schema.org MCP communication
80
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Abundance APIs — Simple, affordable APIs for developers
abundanceapis.com
A small catalog of fast, affordable, no-nonsense APIs — CORS proxy, PDF tools, email validation, IP geolocation, and currency exchange rates. Generous free tiers, clean JSON, available on RapidAPI.
llms.txt OpenAPI API AI bots Schema.org MCP communication
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Resend · Email for developers
resend.com
The best way to reach humans instead of spam folders. Deliver transactional and marketing emails at scale.
llms.txt OpenAPI API Schema.org MCP communication
75
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TLS Radar - SSL/TLS Certificate Monitoring
tlsradar.com
Free SSL/TLS certificate monitoring with real-time expiry alerts. Run a free SSL scan, issue a free 90-day certificate, and catch misconfigurations and vulnerabilities before they cause downtime.
llms.txt ai-plugin OpenAPI AI bots Schema.org communication
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FormsList - Form Backend as a Service
formslist.com
Point your HTML form to FormsList. We handle submissions, notifications, spam filtering, and integrations. No server code required. Free plan included.
llms.txt OpenAPI API AI bots Schema.org communication
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Echo Agent — AI event discovery & outreach
yourechoagent.com
Find conferences, webinars, podcasts and communities in your niche. AI drafts outreach and triages replies. 50 free emails.
llms.txt ai-plugin API AI bots Schema.org communication
70
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SecondSim: Real UK Mobile Number for Business & WhatsApp
secondsim.co.uk
Real UK mobile number via eSIM — not VoIP, not virtual. Guaranteed to verify on WhatsApp Business, Monzo, Barclays and more. No contract. From £5.99/mo.
llms.txt ai-plugin API AI bots Schema.org communication
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J
Social Media Content AI Operating System | Viral Worx
jasonmartocci.com
Plan posts, write scripts and titles, make thumbnails and video briefs, schedule content, and track results across YouTube, TikTok, Instagram, and Facebook.
llms.txt OpenAPI API AI bots Schema.org communication
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Slack | AI Work Platform & Productivity Tools
join.slack.com
Boost productivity and save time with Slack‌ — ‌the AI work platform for managing projects, automating workflows, and connecting teams securely. Start working smarter today.
llms.txt ai-plugin API communication
60
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Everlange — AEO, GEO & AIO software: 67-criteria audit | Get cited by AI
aeotool.io
Everlange is the AEO software (AEO / GEO SaaS) that audits your website against 67 criteria and gets it cited by ChatGPT, Claude, Gemini, Perplexity, Copilot, Grok and Google AI Overviews. Answer Engine Optimization (AEO), Generative Engine Optimization (GEO) and AI Overviews Optimization (AIO). First AEO audit free.
llms.txt API AI bots Schema.org MCP communication
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Slack | AI Work Platform & Productivity Tools
slack.com
Boost productivity and save time with Slack‌ — ‌the AI work platform for managing projects, automating workflows, and connecting teams securely. Start working smarter today.
llms.txt ai-plugin API communication
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Oblipali — SMS marketing Shopify, Sheets et agents IA
oblipali.app
Automatisez vos SMS : relance de paniers abandonnés Shopify, envois depuis Google Sheets et Trello, API MCP pour agents IA. Tarifs transparents, 90+ pays.
llms.txt API AI bots Schema.org MCP communication
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Slack developer docs | Slack Developer Docs
api.slack.com
Plugin for querying Slack.
llms.txt ai-plugin API communication
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Pantry App for ChatGPT & Claude | Pantry Persona
pantrypersona.com
The complete pantry app for ChatGPT and Claude. Remembers your pantry, recipes, and meal plans across every conversation.
llms.txt API AI bots Schema.org MCP communication
60
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Kweenkl — Push Notifications for AI Agents | Claude, ChatGPT, MCP
kweenkl.com
The push notification layer for AI agents. Give Claude, ChatGPT, or any autonomous agent a direct line to your iPhone via MCP or a simple HTTP POST. Also works with Zapier, Make, n8n, and 5,000+ apps.
llms.txt API Schema.org MCP communication
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Synlig | Norges ledende AEO-ekspert og AI-synlighet
synligdigital.no
Er bedriften din usynlig for ChatGPT, Perplexity og Google AI? Vi hjelper norske bedrifter med å bli synlige der kundene faktisk spør.
llms.txt API Schema.org MCP communication
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Plain — The AI Support Stack Built for B2B
plain.com
Plain is the AI support stack built for B2B teams. Composable infrastructure that gives you complete flexibility to build a support motion that grows with your business — no-code or all-code.
llms.txt API AI bots Schema.org communication
50
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Toplu SMS Göndermeye Bugün Başlayın - iletiMerkezi
iletimerkezi.com
llms.txt API AI bots Schema.org communication
50
+25 llms.txt +15 structured API missing +20 ai-plugin
MemPalace Cloud — The Digital Memory Palace for AI Tools
mempalace.cloud
MemPalace Cloud is a digital memory palace for AI tools. Claude Code, ChatGPT, Cursor, and more get persistent memory across sessions. Install in two minutes. EU-hosted, open-source engine.
llms.txt API AI bots Schema.org communication
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Gigora — Find Concerts & Tours Anywhere in the World
gigora.live
Find concerts anywhere in the world — search by city, artist or vibe across every stage. Track tours, get show alerts, and browse upcoming concerts on Gigora.
llms.txt API AI bots Schema.org communication
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Macuse — AI Superpowers for Every Mac App
macuse.app
Give your AI direct control of Calendar, Mail, Notes, Reminders, and any Mac app via MCP. Includes Computer Use, on-device. Works with Claude, Cursor, and Raycast.
llms.txt API AI bots Schema.org communication
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AI Intelligence Layer for Business Data | CorpusIQ
corpusiq.io
AI intelligence layer for business data. Ask questions in ChatGPT, Claude, or Perplexity, get source-cited answers from 40+ systems. Zero data stored.
llms.txt API AI bots Schema.org communication
50
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Cosmik — Live Satellite Tracker & Rocket Launch Alerts
gocosmik.com
Track the ISS, Starlink and 20,000+ satellites live in 3D, follow every rocket launch, and get free alerts when to look up. No login.
llms.txt API AI bots Schema.org communication
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Loops | Email Marketing Software for SaaS Teams
loops.so
Loops is email marketing software for SaaS teams to send marketing, lifecycle, and transactional email from one product. Free to start.
llms.txt API AI bots Schema.org communication
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Postmark: Fast, Reliable Email Delivery Service | SMTP | API
postmark.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
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Zynt | Buying Signal Monitoring for B2B Sales Teams
getzynt.com
Zynt monitors public sources for buying triggers in your target accounts. Alerts with context and recommended next steps. Done-for-you setup, live in days. From $800/mo.
llms.txt API AI bots Schema.org communication
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NotFair MCP — AI Ads Agent for Google Ads, Meta Ads & More
adsagent.org
Connect Claude or ChatGPT to Google Ads, Meta Ads, Search Console, and Analytics with NotFair MCP. Diagnose issues, draft fixes, and approve every write.
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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"
Agent Docs
llms.txt OpenAPI spec ai-plugin.json

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