phone

# Phone & Voice Phone-number intelligence (Twilio Lookup) and AI-powered outbound voice calls (Bland.ai) through ClawRouter's local proxy. Payment is automatic via x402 from the user's BlockRun wallet. **Shortcuts:** - Slash: `/cr-call +1<E.164> "<task>" [--voice nat] [--max-duration 5] [--from +1<owned-number>] [--language en-US]` - CLI: `clawrouter phone numbers list/buy/renew/release`, `clawrouter phone lookup <+E.164>`, `clawrouter phone fraud <+E.164>` - Partner tools (LLM-callable): `blockrun_phone_lookup`, `blockrun_phone_lookup_fraud`, `blockrun_phone_numbers_buy/renew/list/release`, `blockrun_voice_call`, `blockrun_voice_status` > **⚠️ Real-world side effects.** `blockrun_voice_call` places a real outbound phone call to a real number. Only invoke when the user has explicitly asked for a call to be placed. Server enforces an emergency-number blocklist. --- ## Phone Number Intelligence (Twilio) ### Carrier + Line Type Lookup — `$0.01` POST to `http://localhost:8402/v1/phone/lookup`: ```json { "phoneNumber": "+14155552671" } ``` Returns carrier name, line type (`mobile` / `landline` / `voip`), country, mobile country/network codes. Use to verify whether a number is reachable, detect VoIP/spam patterns, or route SMS appropriately. ### Fraud Risk Check — `$0.05` POST to `http://localhost:8402/v1/phone/lookup/fraud`: ```json { "phoneNumber": "+14155552671" } ``` Adds SIM-swap recency and call-forwarding signals on top of carrier+line type. **Run this before sending sensitive SMS codes or initiating account-recovery flows** — a number flagged for recent SIM swap is high-risk for account takeover. --- ## Wallet-Owned Phone Numbers Numbers are leased for 30 days, bound to the wallet's payer address. Use one as the `from` parameter of `voice_call` to present a stable caller ID. ### Buy — `$5.00 / 30 days` POST to `http://localhost:8402/v1/phone/numbers/buy`: ```json { "country": "US", "areaCode": "415" } ``` `country` is `"US"` or `"CA"`. `areaCode` is optional (3-digit, best-effort match). Returns `{ phone_number, expires_at, chain }`. ### Renew — `$5.00 / +30 days` POST to `http://localhost:8402/v1/phone/numbers/renew`: ```json { "phoneNumber": "+14155551234" } ``` Run before the existing lease expires. Numbers not renewed are released back to the pool. ### List — `$0.001` POST to `http://localhost:8402/v1/phone/numbers/list` with an empty body. Returns an array of `{ phone_number, expires_at, country, chain }`. The CLI surfaces this as a human table with renew-soon warnings: ``` $ clawrouter phone numbers list Active numbers (2): +14155551234 US expires 2026-06-12 (in 27d) +12135555678 US expires 2026-05-18 (in 2d) ⚠ renew soon ``` ### Release — free POST to `http://localhost:8402/v1/phone/numbers/release`: ```json { "phoneNumber": "+14155551234" } ``` No refund. Use only when the user has explicitly asked to give up the number. --- ## AI Voice Call (Bland.ai) ### Place a Call — `$0.54 flat (up to 30 min)` POST to `http://localhost:8402/v1/voice/call`: ```json { "to": "+14155552671", "task": "Call and confirm the 3pm Thursday meeting; reschedule if they can't make it.", "voice": "nat", "max_duration": 5, "from": "+14155551234", "language": "en-US" } ``` **Required:** `to` (E.164), `task` (free-form natural language — what the AI should say or accomplish). **Optional:** | Field | Default | Notes | | -------------- | ----------- | ------------------------------------------------------------------------------------------------------------------------------------------------ | | `voice` | `nat` | Presets: `nat`, `josh`, `maya`, `june`, `paige`, `derek`, `florian`. Or a custom Bland voice ID. | | `max_duration` | `5` | Maximum minutes (1–30). Price is flat $0.54 regardless of actual duration. | | `from` | auto-picked | Must be a wallet-owned number from `phone_numbers_list`. If omitted, server auto-picks from wallet's active numbers — see auto-pick rules below. | | `language` | `en-US` | Any spoken-language ISO code, e.g. `es-ES`, `zh-CN`, `de-DE`. | **`from` auto-pick rules** (server-side, after payment verification): | Wallet active numbers | Behavior | | --------------------- | --------------------------------------------------------------------------------------------------------- | | 0 | `403 no_active_number` — response includes `buy_endpoint` + marketplace URL so caller can provision first | | Exactly 1 | Auto-used as caller ID | | 2+ | `400 ambiguous_from` — response lists all active numbers; retry with `from` set explicitly | If an explicit `from` is supplied but the wallet doesn't own it, the response is `403` with a clear ownership-mismatch message (no charge taken when validation fails). **Response is fire-and-forget:** ```json { "call_id": "call_abc123", "poll_url": "/v1/voice/call/call_abc123", "status": "queued" } ``` The call runs in the cloud for up to `max_duration` minutes. The HTTP response returns immediately — **do not wait for the call to finish**. Poll `voice_status` every 10–30s to retrieve transcript and recording when the call completes. ### Poll Status — free GET `http://localhost:8402/v1/voice/call/{call_id}`. Returns: ```json { "call_id": "call_abc123", "status": "completed", "duration_seconds": 47, "transcript": [ { "role": "assistant", "text": "Hi, this is calling to confirm tomorrow's 3pm meeting..." }, { "role": "user", "text": "Yes, that still works." } ], "recording_url": "https://..." } ``` `status` progresses through `queued` → `in_progress` → `completed` or `failed`. The transcript array and recording URL only appear on `completed`. On `failed`, an `error` field describes why. --- ## Example Agentic Flows **Verify before texting:** > User: "Send a verification code to +1 415 555 0123" > Agent: First call `blockrun_phone_lookup_fraud({ phoneNumber: "+14155550123" })`. If `sim_swap.last_sim_swap` is within the past 7 days, refuse and ask the user to confirm out-of-band. Otherwise proceed. **Appointment confirmation:** > User: "Call my client at +1 415 555 0123 and confirm tomorrow's 3pm meeting" > Agent: `blockrun_voice_call({ to: "+14155550123", task: "Call to confirm the 3pm Thursday meeting; if they can't make it, offer to reschedule for Friday morning.", max_duration: 5 })`. Returns `call_id`. Tell the user: "Calling now — I'll have the transcript in a few minutes." Then `blockrun_voice_status({ callId })` every 30s until `completed`, then summarize the transcript. **Acquire dedicated caller ID:** > User: "Buy me a San Francisco number for the next 30 days" > Agent: `blockrun_phone_numbers_buy({ country: "US", areaCode: "415" })`. Confirm the assigned number to the user and warn them: "Lease expires in 30 days, costs $5 to renew." --- ## Notes - Payment is automatic on every call — an x402 USDC micropayment from the user's wallet, or a draw on account credit if a BlockRun API key is configured. - If a call fails with a 402, check `GET http://localhost:8402/health` and read `authMode` first: `wallet` → fund the wallet at [blockrun.ai](https://blockrun.ai); `api-key` → top up at [user.blockrun.ai/dashboard/credits](https://user.blockrun.ai/dashboard/credits). - Number leases are bound to the **wallet's** payer address, so `phone numbers list/buy/renew/release` and the `from` parameter are wallet-mode features. In API-key mode the gateway answers those routes with a raw `402` x402 challenge (verified 2026-09-05) because there is no payer address to bind a lease to. Lookups, fraud checks and outbound calls all work on an API key; just let the server auto-pick `from`. - Phone numbers are real, regulated resources — numbers bought are reachable from any phone within ~60 seconds of purchase - Bland.ai's emergency-number blocklist is enforced server-side; ClawRouter does not duplicate it but trusts upstream - Recordings and transcripts are retained by Bland.ai; ClawRouter does not download them locally (returns the upstream URL) - For programmatic polling, see the `voice_status` tool — for one-off CLI checks, hit `curl http://localhost:8402/v1/voice/call/{call_id}` directly