wellknown
SearchCapabilitiesReliabilityJournalSourcesDocs
/mcpAdd to your agentSign in
wellknown

A live, machine-queryable index of AI agents, MCP servers and tools. Every record separates what publishers declare from what we observed.

Product
  • Search
  • Capabilities
  • Reliability report
  • Journal
  • Sources & freshness
  • Network status
Developers
  • Documentation
  • HTTP API
  • MCP server
  • Claim an agent
  • Dashboard
For machines
  • llms.txt
  • openapi.json
  • agent-card.json
  • sitemap.xml
  • About our crawler
Records are indexed from public sources and attributed to them. Observed data is ours; declared data is theirs.v0.1 · early network
Capabilities/communication

Communication

Messaging, chat and notifications.

614 records261 liveRefine in search →
Team ChatSMS & VoiceNotificationsCustomer Support
ApuchatAgentA2A
by Apuchat
Live

Walkie-talkie hub for AI agents. Lets two or more agents on different machines talk to each other in real time over a hosted MCP / REST / A2A server. Open channels by callsign or by index, broadcast, request rooms, offline DM delivery.

Team Chat
https://apuchat.comok 42 min ago
AttroveAgentA2A
by Attrove
Live

Communication intelligence for AI products. Query a user's email, Slack, calendar, meetings, and saved notes through a single authenticated retrieval surface.

Calendar & SchedulingTeam ChatEmailNotes & DocsData Extraction
https://attrove.comok 8 h ago
ContrastAPIAgentA2A
by ContrastCyber
Live

Security + OSINT API with 55 MCP tools, 7 MCP Resources (ATLAS+D3FEND+CWE catalog browsing), and 3 MCP Prompts for AI agents: CVE/KEV/CWE lookup, composite risk scoring (CVSS+EPSS+KEV+PoC fusion), CVSS v3.x vector parser, domain audit, SSL/header scan, IOC/phishing/IP/ASN/WHOIS/subdomain/wayback, p…

Security ReviewEmailSMS & VoicePrompt ManagementSecrets Management
https://api.contrastcyber.comok 8 h ago
Coin RailzAgentA2A
by Coin Railz
Live

Multi-chain x402 micropayment infrastructure for AI agents with 80 pay-per-call services.

Code ExecutionPaymentsPricing & QuotesNotificationsMarkets & Trading
https://coinrailz.com/a2a/v1ok 8 h ago
callinglyMCP serverMCP
by com.callingly
Live

Lets AI agents get leads on the phone: call, send SMS, and schedule callbacks for sales teams.

CRM & Sales~76%SMS & Voice~73%
https://api.callingly.com/mcpok 8 h ago
BirdMCP serverMCP
by com.bird
Live

Send and receive across email, SMS, WhatsApp, and voice. One API, one contract.

SMS & Voice~77%
https://mcp.bird.comok 8 h ago
Global ChatAgentA2A
Live

The Ad Network for AI Agents. Cross-protocol agent discovery, USDC auction bidding, and x402-gated premium data.

Payments~100%Agent Discovery~100%Team Chat~67%Filesystem~54%
https://global-chat.iook 9 h ago
LoopumanAgentA2A
by Loopuman
Live

The Human Layer for AI — Route tasks to verified human workers worldwide via Telegram & WhatsApp with 8-second cUSD payments on Celo.

Tasks & To-do~86%SMS & Voice~83%Payments~81%
https://api.loopuman.comok 9 h ago
9bot Discovery AgentAgentA2A
Live

Helps AI agents discover the official 9bot MCP endpoint, OAuth metadata, skills, and supported public capabilities.

Identity & AccessSMS & Voice
https://9bot.com.brok 42 min ago
webhook.coMCP serverMCP
by co.webhook
Live

Receive, inspect, replay and deliver webhooks — with signature verification and agent triggers.

Notifications~100%
https://mcp.webhook.co/mcpok 9 h ago
Gate402AgentA2A
by Gate402
Live

x402 payment gateway for AI agents: rent on-demand GPU/CPU compute (per-second) and open-model LLM inference (per-token), plus crypto/finance data and web tools — pay-per-call in USDC over HTTP 402, no signup. Also gives AI agents a wallet with spend guardrails — per-transaction and daily USDC caps…

OCRPaymentsMarkets & TradingAccountingFilesystem
https://gate402.appok 42 min ago
VoxploAgentA2A
by Voxplo
Live

AI phone receptionist and outbound calling API. Answers inbound calls 24/7 and lets AI agents place outbound phone calls via a REST API or MCP server. The agent calls a person, conducts a goal-directed conversation, and returns a summary, transcript, and structured extracted fields.

SMS & Voice~86%
https://www.voxplo.aiok 9 h ago
Agent Rescue Desk Production Triage AgentAgentA2A
by Agent Rescue Desk
Live

Stateless production-failure triage for sanitized n8n, MCP, webhook, retry, and AI agent tool-routing incidents, with a fixed-scope rescue path when static checks are not enough.

NotificationsWorkflow Automation
https://agent-rescue-desk.netlify.appok 9 h ago
WASync — WhatsApp Platform APIMCP serverMCP
by app.wasync
Live

WhatsApp for your app or AI agent over OAuth2 — the same connections WASync runs inside your CRM.

SMS & Voice~100%
https://cloudapi.wasync.app/api/mcpok 2 h ago
LMCP (Local MCP)AgentA2A
by LMCP
Live

Native macOS tool server that gives AI agents access to Mail, Calendar, Contacts, Microsoft Teams, WhatsApp, Slack, Notion, OneDrive, Google Drive, Office documents and more — 188+ tools, all running locally on the user's Mac. IMPORTANT: LMCP speaks the Model Context Protocol (MCP), not the A2A pro…

FilesystemEmailCalendar & SchedulingTasks & To-doTeam Chat
https://www.local-mcp.com/mcpok 2 h ago
BridgeNodeAgentA2A
by BridgeNode
Live

BridgeNode — x402 pay-per-request AI inference. OpenAI-compatible API + MCP server, Solana USDC, gas-free micropayments. No API keys. Free models included. Live prices: bridgenode.cc/v1/models

PaymentsE-commerce OperationsPricing & QuotesTeam Chat
https://bridgenode.ccok 2 h ago
RobutlerMCP serverMCP
by ai.robutler
Live

Build, remix, and run apps with agents on Robutler. Search, delegate, post, chat, manage channels.

Team Chat~77%
https://robutler.ai/mcpok 3 h ago
Dynamic FeedAgentA2A
by Dynamic Feed
Live

The verifiable live-data agent. Successful tasks return current data as an accepted Ed25519-signed, provenance-stamped artifact with reliability metadata when computed (the rule: signed is not verified). Keyless fair-use. A neutral witness, never the money path.

Security ReviewWeatherNotificationsNews & Feeds~67%Agent Memory~64%
https://dynamicfeed.ai/a2aok 4 h ago
AnomalyArmorAgentA2A
by AnomalyArmor
Live

Data observability agent that monitors schema changes, freshness, and quality across your data warehouse. Surfaces incidents before they reach dashboards and lets you triage them via natural language.

Monitoring & ObservabilityNotificationsDeep Web Research~57%
https://www.anomalyarmor.aiok 4 h ago
whatsappMCP serverMCP
by ai.izap
Live

WhatsApp assistants, messaging, broadcasts, and analytics for your iZap account, over OAuth.

SMS & Voice~100%
https://api.izap.ai/mcpok 4 h ago
← Previouspage 13 of 31Next →
Machine query
GET /api/v1/search?capability=communication&status=live
Aliases

communication, messaging