Linq Alternatives with Agent framework

Providers with agent framework

Photon

Open-source agent framework with managed iMessage

Starting price: $25/month (Pro)
Free plan: Free: shared iMessage lines, up to 10 users (2.0 beta: 25 shared iMessage assignments and $100 credit)

Spectrum is a multi-channel agent framework with streaming replies

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Linq

iMessage, RCS and SMS API with flat monthly pricing

Starting price: $260/month (Pro)
Free plan: Hobby: $0, up to 20 contacts, used through the CLI

PartialNo own framework. Maintains a Vercel Chat SDK adapter and OpenClaw and Hermes plugins.

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Blooio

One API for iMessage, WhatsApp and Apple Messages

Starting price: $39/month (Starter, shared number)
Free plan: Free trial: 20 messages total on a shared number, no credit card

PartialNo own framework. Community Chat SDK adapter, plus plugins for Hermes Agent and eve.

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Sendblue

iMessage API and CRM texting for sales and agents

Starting price: $100/month per line
Free plan: Free sandbox: shared number, up to 10 verified contacts, no webhooks

PartialNo own framework. Maintains a Vercel Chat SDK adapter.

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Chert

iMessage and FaceTime numbers for AI agents

Starting price: $25/month (Shared)
Free plan: 24-hour trial: 10 messages and 10 FaceTime minutes on a shared line

PartialChert-managed FaceTime assistants and a LiveKit voice-agent starter; messaging is send and receive.

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MessageBlue

iMessage API for agents, with bring-your-own-number

Starting price: $100/month per line
Free plan: $0 with your own number and Mac, all features, limited seats

No-code agent with model choice, prompt, knowledge, tools, memory and multi-step tasks.

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Twilio

Global CPaaS for SMS, RCS, WhatsApp and voice

Starting price: $0.0083 per US SMS segment
Free plan: 30-day free trial, no card, with 100 SMS and 75 voice minutes

Twilio Agent Connect SDK with Conversation Orchestrator and Memory

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Bird

Email, SMS, WhatsApp and Apple Messages APIs

Starting price: $0.0035 per US outbound SMS segment plus carrier fees
Free plan: Free email tier of 1,000 emails a month; free shared Inbox

PartialAI Employees builder on the Engagement Platform (app.bird.com) only

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Telnyx

Low per-part SMS pricing with carrier fees at cost

Starting price: $0.004 per US SMS part plus carrier fee
Free plan: Trial account with $5 testing credit

AI Assistants run conversations over calls, SMS, WhatsApp and web chat; Agent SDK in beta

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Vonage

Messages API for SMS, RCS, WhatsApp, Viber and email

Starting price: $0.00860 per US SMS on a long virtual number, plus carrier fees
Free plan: Free credit at signup with no card, and a free Messages API Sandbox capped at 100 messages a month

AI Studio, a low-code builder for virtual agents on voice and messaging

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Infobip

Global CPaaS and Apple Messages for Business provider

Starting price: $0.0075 to $0.0083 per US SMS (indicative)
Free plan: 60-day free trial, no card, up to 100 messages per channel to your verified number

AgentOS AI Agents: LLM agents with tools, MCP, orchestration and a test Quality center

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Sinch

CPaaS with 13 messaging channels in one API

Starting price: $0.0078 per US 10DLC SMS, plus carrier fees
Free plan: Free developer account with an SMS sandbox and test credit

Chatlayer, a no-code chat and voice bot builder with NLP and generative AI

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Claw Messenger

iMessage for personal AI agents, no Mac needed

Starting price: $5/month for 250 messages
Free plan: 7-day free trial, card required

PartialPlugins for OpenClaw, Hermes, LangChain and CrewAI; no framework of its own

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