# AgentLine > Phone numbers, voice, and SMS for AI agents. Documentation, SDKs, and API reference. ## Docs - [Phone Numbers, Voice & SMS API for AI Agents](https://agentline-seo-meta-2026-08-18.mintlify.site/introduction.md): AgentLine is the AI-native telephony API — give any AI agent a real US or Canadian phone number for outbound calls, inbound voice, and SMS. Guides, SDKs (Python & Node), pricing, and interactive API reference. - [Get Account Voice](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/voice/get-account-voice.md): Get the current account-level default voice for AI phone agents. - [Reset Account Voice](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/voice/reset-account-voice.md): Reset account voice to the system default. - [Update Account Voice](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/voice/update-account-voice.md): Set the account-level default voice for AI phone agents. - [Get Available Voices](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/voice/get-available-voices.md): List all available voice presets for AI phone agents. - [List Agents](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/agents/list-agents.md): List all AI voice agents configured on your account. - [Create Agent](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/agents/create-agent.md): Create a new AI voice agent for telephony. - [Get Agent](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/agents/get-agent.md): Get details of a specific AI voice agent. - [Delete Agent](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/agents/delete-agent.md): Delete an AI voice agent. - [Update Agent](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/agents/update-agent.md): Update an AI voice agent's configuration. - [Get Balance](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/billing/get-balance.md): Get your AI telephony account balance and rate card. - [Get Expenditure](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/billing/get-expenditure.md): Get a detailed expenditure breakdown for AI telephony usage. - [Get Call Expenditure](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/billing/get-call-expenditure.md): List individual call charges from AI agent phone calls. - [Get Number Expenditure](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/billing/get-number-expenditure.md): List phone number provisioning charges. - [Get Spending Summary](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/billing/get-spending-summary.md): Month-over-month spending summary. - [List Calls](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/calls/list-calls.md): List voice calls made by your AI agents. - [Create Call](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/calls/create-call.md): Make an outbound phone call from your AI agent. - [Get Call](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/calls/get-call.md): Get full details of a specific voice call. - [Push Call Context](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/calls/push-call-context.md): Push context into a LIVE relay-mode call (mid-call context injection). - [Hangup Call](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/calls/hangup-call.md): Hang up an active phone call. - [Get Transcript](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/calls/get-transcript.md): Get the full conversation transcript for a call. - [List Events](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/events/list-events.md): Poll for telephony events from your AI agents. - [Peek Events](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/events/peek-events.md): Peek at pending telephony events without consuming them. - [List Messages](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/messages/list-messages.md): List SMS messages sent and received by your AI agents. - [Send Message](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/messages/send-message.md): Send an outbound SMS message from an AI agent's phone number. - [List Conversations](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/messages/list-conversations.md): List all SMS conversations for your AI agents. - [List Numbers](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/numbers/list-numbers.md): List all phone numbers provisioned on your account. - [Provision](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/numbers/provision.md): Buy a US phone number for your AI agent. - [Get Number](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/numbers/get-number.md): Get details of a specific phone number. - [Reassign Number](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/numbers/reassign-number.md): Reassign a phone number to a different AI agent. - [Get Webhooks](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/webhooks/get-webhooks.md): List the account's per-agent webhook configuration(s). - [Set Webhook](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/webhooks/set-webhook.md): Create or replace an agent's webhook. - [Delete Webhook](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/webhooks/delete-webhook.md): Remove an agent's webhook. No events for that agent will be delivered via HTTP afterwards; they remain available via GET /v1/events (the mailbox). - [Test Webhook](https://agentline-seo-meta-2026-08-18.mintlify.site/api-reference/webhooks/test-webhook.md): Fire a signed `webhook.test` event to the agent's webhook. ## OpenAPI Specs - [openapi](https://agentline-seo-meta-2026-08-18.mintlify.site/openapi.json)