SMS infrastructure for AI agents
Give autonomous agents durable, programmable phone numbers for SMS verification, account recovery, and identity. MCP server and SDK integrations included.
Autonomous agents need phone numbers. Whether they're signing up for SaaS tools, recovering accounts, proving identity to a service, or onboarding a new customer, agents repeatedly hit the same wall: "we sent a code to your phone." SIMRelay is the missing primitive — durable, programmable phone numbers with an HTTP API and a Model Context Protocol server, so your agent can read its own SMS as easily as it reads a file.
This section covers the building blocks: receiving verification codes, persistent agent identity, the MCP server, SDK quickstarts, and concrete use cases.
SMS verification for AI agents
When your agent signs up for a service that requires a phone number, SIMRelay receives the SMS code and exposes it programmatically. No human-in-the-loop required.
Learn morePhone-number identity for agents
Durable per-agent phone numbers with lifecycle management, recycling policies, and audit trails. Treat phone identity as a first-class agent primitive.
Learn moreMCP server for SMS
Receive-SMS exposed as a Model Context Protocol tool. Drop it into Claude, Cursor, or any MCP-aware host and your agent can read its own inbox.
Learn moreSDK quickstarts
Working examples for the OpenAI Agents SDK, Anthropic Claude Agent SDK, LangChain, and LangGraph. From zero to receiving SMS in your agent loop in minutes.
Learn moreAgent use cases
Autonomous account creation, multi-account ops, browser-agent verification, RPA, and customer-support bots that need to read SMS.
Learn morePrêt à commencer ?
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