agentsim-sdk

We run the auth challenge so your agent doesn't die there. This Python SDK opens an SMS challenge, waits for the verdict, and closes the session. Import name is agentsim. Primary names: open_challenge / wait_for_verdict. provision / wait_for_otp are aliases that still work. There is no AgentSIM() class.

Install

uv add agentsim-sdk

Or with pip:

pip install agentsim-sdk

Quickstart

import agentsim

async with agentsim.open_challenge(agent_id="checkout-bot", country="US") as num:
    await enter_phone_number(num.number)
    otp = await num.wait_for_verdict(timeout=60)
    await enter_otp(otp.otp_code)

Auth

Set AGENTSIM_API_KEY in your environment, or call agentsim.configure() at startup:

agentsim.configure(api_key="asm_live_xxx")

Get your API key at console.agentsim.dev.

API

`agentsim.open_challenge(*, agent_id, country="US", service_url=None, ttl_seconds=3600, webhook_url=None)`

Returns an async context manager. Opens an SMS challenge on enter, auto-releases on exit. provision is an alias.

async with agentsim.open_challenge(agent_id="checkout-bot", country="US") as num:
    print(num.number)
    print(num.session_id)
    otp = await num.wait_for_verdict(timeout=60)
    print(otp.otp_code)

`num.wait_for_verdict(timeout=60, auto_reroute=False, max_reroutes=2, on_reregistration_needed=None)`

Long-polls until the SMS verdict arrives or timeout seconds elapse. wait_for_otp is an alias.

Returns: OtpResult(otp_code, from_number, received_at)

Raises: OtpTimeoutError if no verdict arrives within timeout seconds.

The shipped SDK does not include wait_for_verdict_sync. MCP agents should use open_challenge / wait_for_verdict.

Error Reference

Exception	When
`AuthenticationError`	Missing or invalid API key
`PoolExhaustedError`	No numbers available in requested country
`OtpTimeoutError`	No verdict arrived within `timeout` seconds
`RateLimitError`	Too many requests — back off and retry
`SessionNotFoundError`	Session expired or already released

Supported Countries

Development Status
- 3 - Alpha
Intended Audience
- Developers
Programming Language
- Python :: 3.11
- Python :: 3.12

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