What is the best alternative to Relay?

The top-rated alternatives to Relay in the Communication category include EZTexting MCP, Line Bot MCP Server, Google Workspace. These servers offer complementary or alternative capabilities depending on your deployment stack and authentication requirements.

How do Relay alternatives differ in installation and runtime?

Relay and its alternatives vary by runtime requirement (Node.js/npx, Python/uvx, Docker, or remote HTTP/SSE endpoints). Check the specification comparison table above to verify command requirements before installing.

Are alternatives to Relay free and open source?

Most MCP servers listed on AllMCPs are open source tools under MIT or Apache licenses that you can self-host or run locally with Claude Desktop, Cursor, VS Code, or Windsurf.

How do I side-by-side compare Relay with a specific alternative?

Click the "Compare side-by-side →" button on any alternative card to see an in-depth comparison matrix covering feature lists, stars, npm downloads, install configurations, and schema specifications.

Communication• MCP Alternatives Guide

Best Alternatives to Relay

Looking for an alternative to Relay? Whether you need a different runtime environment, custom authentication support, or alternative API integrations in the Communication ecosystem, we have cataloged and compared the top alternative MCP servers below.

Browse all Communication servers →View Relay Specs →

Target Reference Server

Relay Overview

Business phone and SMS for teams: calls, texts, transcripts, contacts and call flows.

Specification Matrix: Relay vs Alternatives

Server Name	Runtime	Auth	Pricing	GitHub Stars	Downloads	Action
R Relay (Target)	—	Free/None	Free	—	—	Current
E EZTexting MCP	npx	Free/None	Free	—	—	Compare →
L Line Bot MCP Server	npx	API key	Free	783	—	Compare →
G Google Workspace	npx	Free/None	Free	186	—	Compare →
E Emailmd	npx	No auth required	Free	1,379	—	Compare →
C Callingly	Remote (SSE)	Free/None	Free	—	—	Compare →
T Telnyx	—	Free/None	Free	198	—	Compare →
M Mail Index	npx	Free/None	Free	4	—	Compare →
C Chatterboxio MCP Server	Remote (SSE)	Free/None	Free	10	—	Compare →
M Messages Bridge	npx	Free/None	Free	—	—	Compare →
A ARBuilder	npx	API key	Freemium	24	—	Compare →
T Telegram MCP	uvx	Other	Free	1,704	—	Compare →
X X402 Sms	npx	Free/None	Free	—	—	Compare →

Detailed Evaluation of Relay Alternatives

EZTexting MCP

Runtime: npx

Official EZTexting MCP server: SMS/MMS messaging, contacts, workflows, reports.

1 0

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Line Bot MCP Server

Runtime: npx

Verified

Connects an AI agent to LINE Messaging API for messaging, user profiles, quotas, followers, and rich-menu management.

Key Features:

Push text and Flex messages

Broadcast messages to followers

Retrieve user profiles and follower IDs

14 0 783

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Google Workspace

Runtime: npx

Give AI agents access to Gmail, Calendar, Drive, and more — multi-account, manifest-driven

1 0 186

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Emailmd

Runtime: npx

Render, lint, and preview markdown emails through MCP using hosted HTTP or local stdio transport.

Key Features:

Markdown-to-email-safe HTML rendering

Plain-text email output

Deliverability linting

2 0 1,379

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Callingly

Runtime: Remote (SSE)

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

2 0

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Telnyx

Runtime not confirmed

Official TypeScript library for the Telnyx API

1 0 198

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Mail Index

Runtime: npx

Local-first, read-only MCP server for recall over your Gmail: search, contacts, threads, digests.

1 0 4

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Chatterboxio MCP Server

Runtime: Remote (SSE)

MCP server enabling AI agents to join online meetings, capture transcripts and recordings, and generate summaries.

Key Features:

Join meetings on Zoom, Google Meet, or Microsoft Teams

Capture meeting transcripts and audio recordings

Retrieve meeting information by session ID

1 0 10

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Messages Bridge

Runtime: npx

MCP connector for iMessage & Contacts via a local Mac agent + Vercel relay

1 0

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ARBuilder

Runtime: npx

AI-powered MCP server generating Stylus smart contracts, cross-chain SDKs, full-stack dApps, and Orbit chain deployment tools for Arbitrum.

Key Features:

RAG-based retrieval over Arbitrum docs and code examples

Stylus contract generation, testing, debugging, and validation

Cross-chain bridge and messaging code generation

2 0 24

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Telegram MCP

Runtime: uvx

Connects MCP-compatible clients to Telegram for account, chat, message, contact, media, and administrative operations.

Key Features:

Telegram account and chat management

Message search, sending, editing, and forwarding

Contact alias resolution

5 0 1,704

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X402 Sms

Runtime: npx

Pay-per-call MCP server. $0.03 USDC sends one transactional SMS to a US phone number via x402.

1 0

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Best Alternatives to Relay

Relay Overview

Specification Matrix: Relay vs Alternatives

Detailed Evaluation of Relay Alternatives

Frequently Asked Questions: Relay Alternatives