# Telnyx Products

> Programmable communications products on a carrier-owned network:
> voice, messaging, numbers, AI inference, wireless, and verify. Each
> product surfaces a REST API on api.telnyx.com/v2 plus SDK coverage
> for the major languages.

## What this surface is for
- Browsing the catalog of Telnyx product lines
- Drilling from a product overview page into its dedicated docs and pricing
- Discovering which scoped /<product>/llms.txt index covers each surface

## Product index
- Voice API: https://telnyx.com/products/voice-api
- Voice AI Agents: https://telnyx.com/products/voice-ai-agents
- SIP Trunking: https://telnyx.com/products/sip-trunking
- Elastic SIP Trunking: https://telnyx.com/products/elastic-sip-trunking
- Programmable SMS / MMS: https://telnyx.com/products/sms-api
- Phone Numbers: https://telnyx.com/products/phone-numbers
- Verify API: https://telnyx.com/products/verify
- AI Inference: https://telnyx.com/products/inference
- Wireless / IoT SIMs: https://telnyx.com/products/wireless
- Fax API: https://telnyx.com/products/fax-api
- Call Control: https://telnyx.com/products/call-control

## Scoped llms.txt indices for product areas
Drill into a single product surface for compact, agent-friendly docs.
- Voice: https://telnyx.com/voice/llms.txt
- Messaging: https://telnyx.com/messaging/llms.txt
- Numbers: https://telnyx.com/numbers/llms.txt
- SIP Trunking: https://telnyx.com/sip-trunking/llms.txt
- AI & x402: https://telnyx.com/ai/llms.txt
- API surface: https://telnyx.com/api/llms.txt
- Pricing: https://telnyx.com/pricing/llms.txt

## Canonical docs and specs
- Developer docs: https://developers.telnyx.com
- API reference: https://developers.telnyx.com/api
- OpenAPI spec: https://telnyx.com/openapi.json
- API catalog: https://telnyx.com/.well-known/api-catalog

## Authentication
- Bearer API key in the Authorization header.
- Get a key via the agent signup flow: https://telnyx.com/agent-signup.md
- OAuth 2.0 metadata: https://telnyx.com/.well-known/oauth-authorization-server

## Agent fast path
- Agent entry point: https://telnyx.com/agents/start
- Site-wide index: https://telnyx.com/llms.txt
- Pricing markdown: https://telnyx.com/pricing.md
- Getting started for agents: https://telnyx.com/getting-started.md