Telnyx AgentSDK

What it does

AgentSDK is a TypeScript base class, shipped inside @telnyx/edge-runtime, that extends StatefulActor with three primitives: persistent message history, durable scheduled tasks, and merge-patch state. You write an agent by subclassing Agent and handling events such as onMessage. Platform bindings expose Telnyx inference, voice, SMS, MMS, WhatsApp, KV, and storage through this.env, with no credentials handled in agent code.

Developers use it to build agents that remember context across sessions, schedule follow-ups that survive restarts and deploys, and reply through real phone or messaging channels. The model, telephony layer, and state store sit on one Telnyx platform, under one API key and one bill, so there is less integration work between separate vendors.

It suits developers building customer-facing or messaging agents who are comfortable with TypeScript and deploying to Telnyx Edge Compute. Access requires a Telnyx account and API key, and the SDK is a code dependency rather than an end-user app. Pricing for the SDK itself is not stated on its page, so confirm cost before committing.

What it can do

• Persistent message history stored in a structured table, queryable by role and time
• Durable scheduled tasks that survive restarts and deploys
• Merge-patch state on a single KV key, where concurrent updates merge rather than overwrite
• Inference through the telnyx binding, OpenAI-compatible and running on Telnyx GPUs in the same facility
• Voice and messaging bindings for phone calls, SMS, MMS, and WhatsApp
• KV and Cloud Storage access through platform bindings without credentials

Works with

• Telnyx Inference API
• Telnyx Voice API
• Telnyx Messaging (SMS, MMS, WhatsApp)
• Telnyx KV and Object Storage

Before you choose

• Pricing for AgentSDK is not published on its page; confirm costs for inference, voice, and messaging under the respective Telnyx product pricing.
• Bindings give credential-free access only inside the Telnyx runtime; the SDK is not a standalone library for other clouds.
• Confirm which agent frameworks are supported and the current release status with Telnyx before building on it.

Listed under

• Coding
• MCP and agent tools

Get started

Create an account and API key, then build with the developer docs.

1. Create a Telnyx account and generate an API key from the Telnyx portal.
2. Install @telnyx/edge-runtime and subclass Agent, implementing onMessage for your logic.
3. Validate authentication with a read-only request such as GET /v2/balance, then deploy the agent to Edge Compute.

Not confirmed. Usage of inference, voice, and messaging is billed under those Telnyx products; check the pricing page and inference calculator for rates.

We couldn’t find published prices for Telnyx AgentSDK.

Sources for this overview

Product pages, documentation, and pricing checked 29 Oct 2026. Each source supports part of the overview; availability and prices can change.

• AgentSDK: Build Production AI Agents on Telnyx Edge Compute ↗telnyx.com
• Telnyx Developer Docs - Telnyx ↗developers.telnyx.com
• Infrastructure for realtime agents | Telnyx ↗telnyx.com

Company website

telnyx.com: product, pricing and policy pages

Social accounts

Accounts the company links, and its posts on X

Human review

Checked by a person

knowledge_base

manual_review

Last checked 29 Oct 2026. Every field keeps its source and date; unknown means we couldn’t confirm it.