# OpenPhonex

> Agent-native telephony: real phone numbers, calls, and SMS an AI agent runs on its own over MCP, described in llms.txt so any AI already knows how to use it.

## Product

- [Pricing](https://openphonex.com/pricing): public plans and usage pricing for numbers, voice, hosted AI, and SMS.

## Docs

- [Agent workflows](https://openphonex.com/docs/agent-workflows): Design governed conversations on a visual canvas, compile them into a deterministic runtime contract, and test them by talking, typing, simulating, or phoning before you publish.
- [Generated API reference](https://openphonex.com/docs/api-reference): Customer REST operations generated deterministically from the checked-in canonical OpenAPI snapshot.
- [Audio environments](https://openphonex.com/docs/audio-environments): Version-pinned licensed ambience for agent output and separate caller-input noise conditions in Simulation Lab.
- [Authentication & keys](https://openphonex.com/docs/authentication): Scoped tai_ keys and gateway tgw_ tokens, Bearer auth, scope clamping and fail-closed semantics, org isolation, and rotate/revoke.
- [Billing and browser credit](https://openphonex.com/docs/billing): Pay-as-you-go usage, a separate $5 browser-testing credit, and purchased funds for phone calls, SMS, and numbers.
- [Campaigns](https://openphonex.com/docs/campaigns): Call a list of your own customers with a hosted agent inside the hours you choose, with per-outcome retries and a do-not-call register.
- [Release log](https://openphonex.com/docs/changelog): Major OpenPhonex releases, with links to the features and guides you can use today.
- [Conversation engines](https://openphonex.com/docs/conversation-engines): Choose Standard speech-to-text, model, and text-to-speech, or GPT-Live 1, which listens and speaks at once.
- [Customer applications](https://openphonex.com/docs/customer-applications): Orchestrate governed outbound calls from your application while OpenPhonex runs the managed voice agent.
- [Delivery profiles](https://openphonex.com/docs/delivery-profiles): Choose how an agent's voice performs its speech, hear exactly that in the voice preview, and know which providers honour it.
- [Deployment modes](https://openphonex.com/docs/deployment-modes): Fully managed cloud vs managed numbers with a self-hosted gateway — who provides the brain, and where the media runs.
- [Introduction](https://openphonex.com/docs): OpenPhonex is agent-native telephony — real phone numbers, calls, and SMS an AI agent runs on its own over MCP.
- [Install the connector](https://openphonex.com/docs/install-connector): The OpenClaw connector in detail — skill, stdio bridge, mcporter registration, the remote-MCP shortcut, and the offline smoke test.
- [Integrations](https://openphonex.com/docs/integrations): Let a hosted agent read current data from your CRM, calendar, billing system, or internal application during a call.
- [Knowledge Bases](https://openphonex.com/docs/knowledge-bases): Give a hosted OpenPhonex agent private business documents it can search during a live call.
- [Which languages the voice agent follows, and how to test yours](https://openphonex.com/docs/language-following): How GPT-Live 1 decides what language to answer in, which languages OpenPhonex has tested, what "not tested" means, and how to test your own language before going live.
- [How OpenPhonex handles provider languages and voices](https://openphonex.com/docs/language-qualification): How provider-reported inventories become searchable, what OpenPhonex still validates for live calls, and what happens when a provider changes its catalog.
- [Launch a campaign](https://openphonex.com/docs/launch-a-campaign): Test the agent, build the list, understand what happens to your per-contact variables, then launch and watch the results.
- [llms-full.txt](https://openphonex.com/docs/llms-full): The whole docs + blog corpus as one plain-text file, cross-linked to the API surface.
- [llms.txt](https://openphonex.com/docs/llms): The site's llms.txt index — a titled map of every doc and blog page plus the API surface.
- [MCP overview](https://openphonex.com/docs/mcp): The hosted MCP endpoint — POST /mcp, tools/list schemas with required_scopes, and prefix scopes.
- [Multilingual outbound calls](https://openphonex.com/docs/multilingual-outbound): Configure several languages on one hosted agent, choose its opening language, and optionally follow the caller within the published language set.
- [OpenAPI](https://openphonex.com/docs/openapi): The live, machine-readable OpenAPI spec for the OpenPhonex API.
- [Policy & outbound](https://openphonex.com/docs/policy-and-outbound): How policy-gated outbound works — evaluate first, authorize, then place. Blocked categories and the broker example.
- [Post-call results](https://openphonex.com/docs/post-call-results): Verify signed lifecycle and artifact events, then optionally read a bounded advisory summary from a completed call.
- [Quickstart](https://openphonex.com/docs/quickstart): Connect an MCP client, inspect your workspace, and test a configured agent in the browser.
- [Read call evidence](https://openphonex.com/docs/read-call-evidence): Recordings, waveform peaks, transcript turns, summaries, and retention/disclosure state for every call.
- [Regulated numbers](https://openphonex.com/docs/regulated-numbers): How carrier registration decides when a number can be ordered — reading the requirement, what you upload, and why some markets order first.
- [REST endpoints](https://openphonex.com/docs/rest-endpoints): The key REST endpoints — agents, web/trial calls, numbers, calls, messages, and wallet/usage.
- [Scopes & permissions](https://openphonex.com/docs/scopes): The scope catalog, prefix scopes, and fail-closed semantics that make a key a permission boundary.
- [Send SMS](https://openphonex.com/docs/send-sms): Read SMS conversations and send policy-gated messages from your numbers.
- [Simulations Lab](https://openphonex.com/docs/simulations-lab): Author realistic caller scenarios, replay them against one pinned agent version, and read hard verdicts with the exact snapshot each attempt exercised.
- [Tool reference](https://openphonex.com/docs/tool-reference): Every OpenPhonex MCP tool with its required scope, generated from the server's TOOL_SCOPES.
- [Transfer to a human](https://openphonex.com/docs/transfer-to-a-human): Hand a live call to a person, and the destination rules OpenPhonex enforces before it will.
- [Test an agent](https://openphonex.com/docs/trial-calls): Use a metered browser session before moving to purchased-funds phone calls. Shared-number live PIN trials are retired.
- [Acknowledgements](https://openphonex.com/docs/voice-behavior): Let an agent say a short "One moment" in its own voice while a slow reply is still being prepared, and choose what the caller hears while a slow tool call runs.
- [Voice Library](https://openphonex.com/docs/voice-library): Search, compare, and choose provider-backed voices in the OpenPhonex workspace.
- [Webhooks](https://openphonex.com/docs/webhooks): Call-lifecycle and carrier SMS delivery callbacks — where your call and SMS events land.
- [Wire an agent to a number](https://openphonex.com/docs/wire-an-agent): Connect an external or hosted agent, set its voice stack, and answer real calls.

## Blog

- [We ran GPT-Live-1 through 107 calls in seven languages. Here is what we found.](https://openphonex.com/blog/gpt-live-seven-languages): A synthetic-caller test of our GPT-Live-1 voice agent across seven languages, and what a Sinhala-specific breakdown taught us about language following.
- [OpenPhonex: agent-native telephony is live](https://openphonex.com/blog/launch): Real phone numbers, calls, and SMS an AI agent can run on its own — over MCP, described in llms.txt. Here is what shipped and how it deploys.
- [Your agent already knows how to use OpenPhonex](https://openphonex.com/blog/works-with-any-ai): The MCP + llms-full.txt thesis — why an agent-native telephony API needs no bespoke integration.

## API surface

- [OpenAPI spec](https://openphonex.com/control-plane/openapi.json): machine-readable API document.
- [API llms.txt](https://openphonex.com/control-plane/llms.txt): the API's own agent index.
- [MCP endpoint](https://openphonex.com/control-plane/mcp): POST /mcp — hosted Model Context Protocol.

## Full corpus

- [llms-full.txt](https://openphonex.com/llms-full.txt): every doc and blog page in one file.