# Blueprintd

> Blueprintd is a UK software company building tools for AI agents in production: redphonr for human approvals over MCP and CronEcho for agent and cron job monitoring.

Blueprintd Ltd is registered in England and Wales and based in London.

## Products

- [redphonr](https://www.blueprintd.co/products/redphonr): redphonr pauses an AI agent before a risky action, asks a person on Slack, SMS, WhatsApp, Telegram, Discord, email or a phone call, and resumes the agent with their answer. Website: https://www.redphonr.com
- [CronEcho](https://www.blueprintd.co/products/cronecho): CronEcho monitors cron jobs, background workflows and AI agents. It alerts you when a job misses its check-in or an agent breaks a budget or timeout, and escalates until someone acknowledges. Website: https://cronecho.com

## Pages

- [About](https://www.blueprintd.co/about)
- [Contact](https://www.blueprintd.co/contact)

## Blog

The blog at https://blog.blueprintd.co has guides, tutorials and comparisons. Full text for AI agents: https://blog.blueprintd.co/llms-full.txt

- [How to add human approval to a Claude agent with MCP in 5 minutes](https://blog.blueprintd.co/posts/add-human-approval-to-claude-agent-with-mcp/): Step-by-step: connect the redphonr MCP server to Claude Code, Claude Desktop or Cursor, and make your agent ask you on Slack or SMS before risky actions.
- [The 10 best human-in-the-loop tools for AI agents in 2026](https://blog.blueprintd.co/posts/best-human-in-the-loop-tools-for-ai-agents/): We compared 10 ways to add human approval to AI agents: managed services, workflow tools and framework features. Channels, MCP support and when to use each.
- [Top 10 ways to get alerted when your AI agent needs a human](https://blog.blueprintd.co/posts/best-ways-to-alert-a-human-from-an-ai-agent/): From MCP-native escalation to PagerDuty, Twilio and Slack webhooks: 10 ways an AI agent can reach a person, ranked by how well they get an answer back.
- [How to add SMS, WhatsApp and phone approvals to CopilotKit and OpenDots agents](https://blog.blueprintd.co/posts/human-approval-for-copilotkit-and-opendots-agents/): CopilotKit's useHumanInTheLoop works while the user is in your app. Here is how to reach them by Slack, SMS or a phone call when they are not, using redphonr.
- [Human-in-the-loop for AI agents: a practical guide for 2026](https://blog.blueprintd.co/posts/human-in-the-loop-ai-agents-guide/): What human-in-the-loop means for AI agents, which actions need approval, the four patterns, how to design timeouts and escalation, and which tools to use.
- [The best HumanLayer alternative for human-in-the-loop AI agents](https://blog.blueprintd.co/posts/humanlayer-alternative/): HumanLayer now builds a coding agent IDE and calls its old repo deprecated. If you need agent approvals over Slack, SMS or voice, here is what to use instead.
- [Introducing the Blueprintd blog](https://blog.blueprintd.co/posts/introducing-the-blueprintd-blog/): Why Blueprintd has a blog, which products it will cover, and what kind of posts to expect from the team behind CronEcho and redphonr.
- [Opsgenie is shutting down: an alternative for AI agent alerts and approvals](https://blog.blueprintd.co/posts/opsgenie-alternative-for-ai-agents/): Opsgenie support ends on 5 April 2027. If your AI agents send alerts or need approvals through it, here are your options and how to move to redphonr.
- [redphonr vs gotoHuman: human approval for AI agents compared](https://blog.blueprintd.co/posts/redphonr-vs-gotohuman/): gotoHuman is a review inbox for AI-generated content. redphonr reaches people on Slack, SMS, WhatsApp and voice with escalation. Which fits your agent?
- [redphonr vs LangGraph interrupt(): build or buy human-in-the-loop?](https://blog.blueprintd.co/posts/redphonr-vs-langgraph-interrupt/): LangGraph's interrupt() pauses a graph. It does not notify anyone, escalate or log who answered. How redphonr fills that gap, with code for both together.
- [redphonr vs PagerDuty: which should your AI agent use to reach a human?](https://blog.blueprintd.co/posts/redphonr-vs-pagerduty/): PagerDuty pages engineers about incidents. redphonr asks a person a question for an AI agent and returns the answer. Features, pricing and when to use each.
- [What CronEcho does for AI agent teams](https://blog.blueprintd.co/posts/what-cronecho-does-for-ai-agent-teams/): How CronEcho tracks AI agent runs, enforces budget caps and timeouts, and escalates alerts until a person on your team acknowledges them.
- [What is redphonr? Human approvals for AI agents over MCP](https://blog.blueprintd.co/posts/what-is-redphonr/): redphonr pauses an AI agent before a risky action, asks a person on Slack, SMS, WhatsApp or a phone call, and resumes with the answer. How it works.