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Mosbie Human Agency API – Phone Call Task
x402
Mosbie Human Agency API – Phone Call Task is a paid API for AI agents from api.mosbie.com, paid per call via x402, $15/call, status unknown (last checked 2026-10-30).
Dispatches a real human to make a phone call on behalf of an AI agent, delivering the result via email or callback URL, paid per call in USDC.
Price / call$15
Success—
StatusUnknown
How this service works
Things only humans can do, for AI agents: phone calls, emails and in-person visits, paid per task in USDC via x402. Same-day delivery.
Output
Returns a JSON object confirming the task was accepted, including a unique task_id for tracking, a task_status of ACCEPTED, and an expected_delivery timestamp. The actual call outcome (what the human found out) is delivered separately via the reply_email or agent_callback_url provided in the request.
Example use cases
Check restaurant reservation availability
“I need someone to call the Blue Anchor Bistro at +12125550187 and ask if they have a table for 4 available this Saturday at 7pm — send the answer to my email at mike@example.com.”
Verify contractor quote by phone
“Can you get a human to call +447911123456 and ask BuildRight Contractors for a rough quote on fitting a new bathroom — they'll need to know it's a standard UK terraced house. Email me whatever they say at sarah@example.com.”
Confirm clinic appointment details
“Please have someone call the Riverside Medical Clinic at +61298765432 and ask what documents I need to bring for a new patient appointment — post the result back to https://myagent.example.com/callback/mosbie.”
Technical details
Endpoint
POSThttps://api.mosbie.com/v1/tasks/phone-call?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your agent needs a real human voice on the other end of a call — for situations where automated calls are refused, where human judgment is needed in conversation, where a business only responds to live callers, or where the task requires nuanced back-and-forth dialogue. Prefer this over text-based alternatives when the target only communicates by phone, or when tone and live response matter. Only use for supported countries (+1, +27, +44, +61, +64).
Side effects
- Unsupported country code on target_phone — only +1, +27, +44, +61, +64 are accepted
- Missing both reply_email and agent_callback_url — at least one is required
- Objective too short or too long — must be 5–2000 characters
- Payment failure via x402 — task not created if USDC payment is not confirmed
- Phone number unreachable or unanswered — result delivered with failure note via callback
- Callback URL unreachable — result may bounce back undelivered
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| objectiverequired | string | Exactly what the human should ask, say, check or find out (5-2000 characters). |
| reply_email | string | Email address where the result is sent. Provide this or agent_callback_url. |
| target_phonerequired | string | Phone number in international format, starting +27 (South Africa), +1 (US/Canada), +44 (UK), +61 (Australia) or +64 (New Zealand), e.g. +14155550123 |
| agent_callback_url | string | https URL where the result is posted. Provide this or reply_email. |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| message | string | |
| successrequired | boolean | |
| task_idrequired | string | Reference for this task. |
| task_statusrequired | string | |
| expected_delivery | string |
Tags
x402
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