Blink Call

Blink AI Call

Make outbound AI phone calls where the agent speaks and listens interactively. The conversation is driven by a system prompt you provide — the agent can handle questions, follow a script, collect information, and respond naturally.

Make a call (waits for completion, prints transcript)

# --first-message is what the AI says when the call connects (REQUIRED for AI to speak first)
blink ai call "+14155551234" \
  "You are collecting a $240 payment from John Smith for invoice #1042. Be polite but firm." \
  --first-message "Hi, is this John Smith? I'm calling from Acme Corp about invoice 1042."

Call from a specific number (when workspace has multiple)

blink ai call "+14155551234" "You are a sales rep following up on a demo." --from "+19143720262"

International calls

blink ai call "+447911123456" "Confirm Jane Doe's appointment tomorrow at 3pm at our London office."
blink ai call "+61412345678" "You are following up on the contract sent last week."

Specific voice

blink ai call "+14155551234" "You are a friendly customer support agent." --voice openai:nova

Fire and forget (returns call_id immediately, doesn't wait)

blink ai call "+14155551234" "Leave a voicemail about our product launch on March 25th." --no-wait

Check status of a previous call

blink ai call-status vc_a1b2c3d4
blink ai call-status vc_a1b2c3d4 --json

Get JSON output (for scripting)

RESULT=$(blink ai call "+14155551234" "Your task here." --json)
TRANSCRIPT=$(echo "$RESULT" | python3 -c "import json,sys; print(json.loads(sys.stdin.read()).get('transcript',''))")

Phone number format

Always use E.164 format:

• US/Canada: +14155551234
• UK: +447911123456
• Australia: +61412345678
• Germany: +4915123456789

System prompt tips

• Be specific about the agent's role and goal
• Include relevant context (name, amount, date, reference numbers)
• Specify what to do on voicemail, if refused, or if line is busy
• Example: "You are calling on behalf of Acme Corp to confirm John Smith's appointment on March 20th at 2pm. If he needs to reschedule, offer March 21st at 10am or 3pm. If you reach voicemail, leave a brief message and say we'll call back."

Available voices

Command signatures

blink ai call <phone-number> <system-prompt> [options]
  --first-message <text>    What AI says first when call connects (CRITICAL for outbound calls)
  --voice <voice>           Voice to use (default: openai:alloy)
  --max-duration <seconds>  Max call duration (default: 300)
  --no-wait                 Return immediately without waiting for completion
  --from <number>           Specific outbound number to call from
  --json                    Machine-readable output

blink ai call-status <call-id> [--json]

Response format (--json)

{
  "call_id": "vc_a1b2c3d4",
  "status": "completed",
  "duration_seconds": 87,
  "transcript": "Agent: Hello, is this John Smith?\nUser: Yes, speaking.\n...",
  "credits_charged": 2
}

Billing

~1 credit per minute of call duration. Credits are charged after the call ends. Before making calls, ensure your workspace has a phone number: blink phone list