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Alternatives

10 best Retell AI alternatives

Tools that cover the same task as Retell AI (voice), ranked by how completely their pricing, free tier and API access are documented. Checked Oct 4, 2026.

Retell AI starts at
Not listed
Free plan
Free to start
API
API available
  1. 01

    Monobot

    Monobot is a platform for building AI voice and chat agents for support, sales, HR, and IT helpdesk workflows. It includes an agent builder, workspace, knowledge base, automation flows, analytics, and CRM integrations.

    • From $200/mo
    • Free tier unknown
    • API available

    Best for: Contact centers and operations teams automating chat, voice, and transcription with metered usage packages.

  2. 02

    echowin

    echowin is an all-in-one platform to build, deploy, and run AI phone and chat agents from one workspace. Teams define agent instructions in plain English, connect tools and workflows, and launch voice, web chat, and WhatsApp channels with conversation analytics and an AI-native CRM.

    • From $45/mo
    • Free plan
    • API available

    Best for: Agencies and operators deploying production AI voice and chat agents with integrations, workflows, and usage-based telephony.

  3. 03

    11ai

    11.ai resolves to ElevenAgents, ElevenLabs’ platform for deploying conversational voice and chat agents across phone, web, WhatsApp, SMS, and email. Teams configure knowledge, workflows, guardrails, and monitoring from a unified builder.

    • From $6/mo
    • Free plan
    • API available

    Best for: Enterprises and startups that need low-latency multilingual voice or chat agents with telephony and workflow tooling.

  4. 04

    Bluejay

    Bluejay is a QA platform for voice and chat AI agents that simulates conversations, monitors production traffic, and tracks regressions. Teams run digital humans, scheduled CI tests, red teaming, and compliance-oriented monitoring with unlimited seats on published plans.

    • From $500/mo
    • Free to start
    • API unknown

    Best for: Teams shipping conversational agents who need pre- and post-deployment testing plus production monitoring.

  5. 05

    Altered

    Altered provides professional AI voice changing software for real-time calls and post-production workflows. Altered Studio focuses on speech-to-speech voice morphing, cloning, and editing, while Real-Time Pro targets gamers, call centers, and voice restoration use cases.

    • From $40/mo
    • Free plan
    • API available

    Best for: Voice creators, streamers, and media teams who need morphing, cloning, and cleanup in both live calls and recorded content.

  6. 06

    Wattson Health

    Wattson Health provides AI agents for healthcare patient access and engagement, including scheduling, referral follow-up, recovery, recall, reactivation, and staff handoffs. The vendor advertises HIPAA-ready workflows, BAA support, encryption, and role-based access patterns.

    • From $499/mo
    • Free trial
    • API unknown

    Best for: Healthcare access and engagement teams that need AI workflows for scheduling, follow-up, and patient reactivation.

  7. 07

    Assindo

    Assindo is a personal AI agent that makes phone calls, searches the web, posts to social networks, schedules tasks, and executes multi-step workflows from mobile or browser apps. It contrasts with self-hosted agents by offering a managed cloud service without Docker setup.

    • From $9.99/mo
    • Free trial
    • API available

    Best for: Professionals and consumers who want a voice-capable AI agent for calls, research, and social posting without running their own server.

  8. 08

    DialLink's AI Voice Agents

    DialLink combines business telephony, SMS, WhatsApp messaging, and AI voice agents in one platform with local or toll-free numbers in 100+ countries. AI features summarize calls, extract action items, tag intent, and power AiVA agents that handle inbound and outbound conversations across Professional and Enterprise plans.

    • From $15/mo
    • Free trial
    • API available

    Best for: Small businesses that want unified calling, messaging, and AI voice agents without juggling separate phone and chatbot vendors.

  9. 09

    AI Prank Call

    AI Prank Call lets users pick celebrity-style AI voices, write a script, and place phone prank calls billed by the minute. The service highlights a voice library, step-by-step call creation, and subscription plans that include monthly call credits.

    • From $9.99/mo
    • Free tier unknown
    • API unknown

    Best for: Users looking for entertainment prank calls with synthesized celebrity voices rather than business voice agents.

  10. 10

    Roark

    Roark is a voice-AI QA and evaluation platform for teams running production voice agents. It simulates hundreds of caller scenarios before launch, scores live calls on audio-native metrics, supports human review, and documents fixes so teams can ship voice agents with evidence.

    • From $500/mo
    • Free to start
    • API available

    Best for: Voice AI teams using providers such as Vapi, Retell, LiveKit, or Pipecat who need simulation, monitoring, and eval loops.

Retell AI alternatives: common questions

What is the best free alternative to Retell AI?

echowin has an ongoing free plan. $5 in free credits; $0 to start building, testing, and going live on pay-as-you-go Free plans change, so check the vendor before relying on one.

What is the cheapest Retell AI alternative?

11ai has the lowest listed starting price at $6/mo.

Which Retell AI alternatives have an API?

Monobot, echowin, 11ai, Altered, Assindo mention API or developer access.