"Building OpenAI Agents SDK Using Official Documentation" matching MCP servers:

Agent Toolkit for Mercado Pago

Enables MCP-compatible agents to make safe, consented phone calls using Twilio and Deepgram.

Enables coding agents to publish and read events on channels, notify humans, and ask yes/no, multiple-choice, or free-text questions, returning answers as tool results.

MCP server that lets Claude place outbound telephone calls via ElevenLabs Agents over a SIP trunk and report the outcome including status, success evaluation, summary, and transcript.

A simple MCP server for interacting with OpenAI assistants. This server allows other tools (like Claude Desktop) to create and interact with OpenAI assistants through the Model Context Protocol.

Enables AI agents to discover each other and communicate through cryptographically verified messaging and secure inbox management via the Agents Registry. It provides tools for Ed25519-based identity authentication, message signing, and agent discovery across domains.

基于MCP协议的聊天桥接服务器，允许多个AI Agent接入同一个聊天室进行对话协作。

MCP server for agent-to-agent communication over NATS with live session push via Claude Code Channels.

MCP server for BubblyPhone that lets AI assistants make real phone calls, manage AI voice agents, buy phone numbers in 30+ countries, and track billing. Supports 20 tools for full telephony control.

Sendmux is an email inbox API and email API for AI agents. Use this MCP server to let authorised agents work with Sendmux mailboxes, inbound email, clean JSON parsing, webhooks, outbound sending, provider routing, logs, billing, and team controls.

Exposes seven read-only tools for sales engagement data from DM Faster, enabling agents to query workspace briefings, campaigns, sendings, replies, pipelines, and company timelines.

Enables reading Apple App Store customer reviews, publishing developer responses, and deleting them via the App Store Connect API with a narrow Customer Support role.

Lets any MCP client drive the recruiting workflow in natural language: create roles, screen CVs, schedule and manage candidate interviews, and read back scored reports with transcripts.

Enables sending emails and listing sent emails with delivery status and open/click counts via the Maillog API.

Enables an assistant to send email and list sent emails through the Maillog email API.

eSIM data plans for 200+ countries: search wholesale plans, check balance and usage, diagnose eSIM connectivity from live network data, and (opt-in) order and top up eSIMs with a confirmation step.

LoginWA MCP: WhatsApp OTP, device status, send message, and broadcast for AI agents. LoginWA hosts the WhatsApp session, so no VPS, no Baileys to babysit, no reconnect loops. Free tier 100 messages a month, paid from $1. Pricing: https://loginwa.com/pricing

MCP server for SentVia that provides email infrastructure for AI agents, enabling them to create inboxes, send, reply, forward, search messages, manage drafts, domains, webhooks, and allow/block rules through 21 tools.

A professional, full-fidelity MCP server enabling AI agents to fully control and manage an Instagram account exactly like a human user.

Gives your AI assistant full control of a Discord server: 148 tools for chat, moderation, automod, events, and administration, up to building a complete community server from one paragraph. Every destructive action previews first and waits for your confirmation.