--- title: "Speko Agents: Voice Agent API for Phone Agents" description: "Speko Agents is the voice agent API from Speko, the OpenRouter for Voice AI. Build, test and run AI phone agents for $0.09 per minute plus carrier charges." canonical: "https://speko.ai/agents" last-updated: "2026-11-11" --- > ## Speko page index > The complete index of every page on this site is at: https://speko.ai/llms.txt > Read it before exploring further. It lists the exact Markdown URL for every canonical HTML page. # Speko Agents is a voice agent API for building, testing and running phone agents. Speko Agents The voice agent API from Speko, the OpenRouter for Voice AI. Speko Agents is the hosted voice agent platform from Speko, the OpenRouter for Voice AI. Speko picks each agent's speech-to-text, LLM and text-to-speech models from its public benchmark, which covers 90 speech and language models across 18 languages (as of November 12, 2026). Teams build an agent in the dashboard without code, through the API, or from a coding agent over MCP. Agents use workflows, webhook tools, knowledge files and calendar and CRM connections, and speak 44 languages, up to four per agent. Teams can test every draft against simulated callers before it ships, and an AI judge scores every real call after it ends. A phone number costs $1 setup and $2 a month for most numbers; teams can also bring their own number over SIP. Agents handle inbound and outbound calls, call lists, transfers and SMS. Price: $0.09 per minute for speech-to-text, LLM and text-to-speech, plus carrier charges. SOC 2 Type 2 report available. Public preview. [Get started free](https://platform.speko.ai/sign-in) [Book a demo](https://speko.ai/book) ## Call an agent built on Speko [Try more agents](https://speko.ai/solutions) Press the sphere to call [Build your own](https://platform.speko.ai/sign-in) [See more demos](https://speko.ai/solutions) Maple Street Dental 1. Front desk Hi, thanks for calling Maple Street Dental. How can I help? 2. You Can I come in Saturday morning? ## What it is [Speko benchmarks](https://speko.ai/benchmarks) - A hosted voice agent platform. Speko runs the conversation, the phone legs and the call record; you configure the agent. - Speko picks an agent's default speech-to-text, LLM and text-to-speech models from the public benchmark. An agent can also pin its own providers. ## Phone numbers and calls [Build a phone agent](https://docs.speko.ai/guides/phone-agents) - Buy US or Canadian numbers after a one-time business verification, or bring your own number from any carrier over SIP. - Agents handle inbound and outbound calls, call lists of up to 1,000 rows, blind and warm transfers to a person, and SMS on Speko numbers. Calls - Inbound - Outbound - Call lists - Transfers - SMS ## Build [Build an agent in the dashboard](https://docs.speko.ai/quickstart/dashboard) - Build in the dashboard without code: the builder is a chat. Or build through the REST API, the TypeScript SDK, the CLI, or a coding agent over MCP. - Agents use workflows, signed webhook tools, knowledge files, and built-in Google Calendar, HighLevel and Slack connections. Ways to build - Dashboard, no code - REST API - TypeScript SDK - CLI - MCP ## Test and monitor [Test before you deploy](https://docs.speko.ai/agents/testing) - Run simulated callers against a draft before it ships. If the workspace blocks deploys on failed checks, a failed rule check refuses the deploy. - After each real call ends, an AI judge scores it and groups the failures into issues. ## Languages [Multilingual agents](https://docs.speko.ai/guides/multilingual-agents) - 44 languages, up to four per agent. When the caller switches language, the agent switches its models and prompt to match. ## Price [Speko pricing](https://speko.ai/pricing) - $0.09 per minute for speech-to-text, LLM and text-to-speech, billed per second from answer to hang-up. Unanswered calls cost nothing. - Phone calls on Speko numbers add the carrier's charge for the call, including its taxes and fees, plus 20%, at least $0.01 per minute inbound and $0.015 per minute outbound. US calls usually cost the minimum; some international routes cost more. Calls over your own SIP trunk add nothing. - A Speko number is $1 setup and $2 a month for most numbers. $10 in signup credit. ## Limits - Speko Agents is in public preview, with no SLA unless an Enterprise contract adds one. - Speko sells US and Canadian numbers only, after a one-time business verification; a number from another country connects over SIP. - Monitoring scores a call after it ends, not during the call. - Up to four languages per agent. ## Notes - Every fact is from the Speko page linked beside its section, checked November 11, 2026. - The product panel at the top is an illustration with made-up data. ## Questions **What is Speko Agents?** Speko Agents is the voice agent API from Speko, the OpenRouter for Voice AI. It builds, tests and runs AI phone agents that make and receive calls, with phone numbers, SMS and transfers. **How is Speko Agents different from the Speko Router?** Speko Agents runs the whole phone agent: the prompt, the voice, the tools, the number and the call. The Speko Router is one API over many speech-to-text, LLM and text-to-speech models, for teams that run their own agent. **What does Speko Agents cost?** $0.09 per minute for speech-to-text, LLM and text-to-speech, billed from answer to hang-up, with $10 in credit on signup. A Speko number is $1 setup and $2 a month for most numbers. Phone calls on Speko numbers add the carrier's charge for the call, including its taxes and fees, plus 20%, at least $0.01 per minute inbound and $0.015 per minute outbound. US calls usually cost the minimum; some international routes cost more. Calls over your own SIP trunk add nothing. **Can I use my own phone number?** Yes. Bring a number from any carrier over SIP; calls over your own SIP trunk add nothing to the per-minute price. Speko also sells US and Canadian numbers. [Get started free](https://platform.speko.ai/sign-in) [Book a demo](https://speko.ai/book) You get $10 in credit when you sign up. Calls then cost $0.09 per minute. Related - [Quickstart: build an agent in the dashboard](https://docs.speko.ai/quickstart/dashboard) - [Quickstart: MCP](https://docs.speko.ai/quickstart/mcp) - [Guide: build a phone agent](https://docs.speko.ai/guides/phone-agents) - [Voice agent testing with simulated callers](https://speko.ai/voice-agent-testing) - [Voice agent monitoring for every real call](https://speko.ai/voice-agent-monitoring) - [Voice agent workflow builder](https://speko.ai/voice-agent-workflow-builder) - [Multilingual voice agents](https://speko.ai/multilingual-voice-agents) - [Voice agent API and SDKs](https://speko.ai/voice-agent-api) - [Voice agent platforms compared](https://speko.ai/voice-agent-platforms) - [Vapi alternatives](https://speko.ai/vapi-alternatives) - [Voice agents by business](https://speko.ai/solutions) - [Speko pricing](https://speko.ai/pricing)