Syncline

Syncline, a product of Kekwanu Labs AI Studio, is an advanced AI-first scheduling infrastructure built specifically for developers and AI agents. Originating from a hackathon, it has evolved into a widely used scheduling API that empowers AI agents like Claude, GPT, and other Large Language Models (LLMs) to automatically schedule meetings between individuals without any human intervention. Syncline takes the complexity out of calendar management, handling intricate details such as OAuth, timezone calculations, and various edge cases, allowing developers to focus purely on building their AI agents.

How to use Syncline

Developers can integrate Syncline into their AI agents or platforms primarily through two methods: a REST API or the Model Context Protocol (MCP). For the REST API, developers send a POST request to /v1/schedule/auto with attendees and meeting context. Syncline's intelligent system then automatically finds availability, identifies the optimal time based on over 100 factors, and creates the meeting. For AI agents, native MCP support allows direct scheduling via natural language, eliminating the need for HTTP boilerplate. After installing the @kekwanulabs/syncline-mcp-server and configuring their AI client (e.g., Claude Desktop) with their API key, agents can utilize tools like schedule_auto, find_availability, schedule_meeting, and get_user_calendar_status to manage calendars autonomously.

Core Features of Syncline

• REST API for programmatic calendar scheduling, offering a single endpoint for automatic meeting booking.
• Model Context Protocol (MCP) server for native AI agent integration, enabling direct natural language scheduling.
• Intelligent auto-scheduling that analyzes 100+ factors, including context-aware scoring, LLM personalization, and outcome-based learning, to find optimal meeting times.
• Self-learning intelligence that improves with every booking, tracking acceptances, reschedules, and cancellations to refine scheduling accuracy.
• Seamless Google Calendar integration with robust OAuth 2.0 handling, including permissions, token refresh, and encryption.
• Context-aware meeting time optimization, adapting scheduling based on meeting type (e.g., investor pitch, warm intro) and user preferences.
• Developer tier offering 25 free meetings per month, full API access, webhooks, and MCP support.

Use Cases for Syncline

Syncline is ideal for a variety of applications where automated, intelligent scheduling is crucial. This includes AI networking bots that introduce people and schedule initial meetings, event platforms that automate follow-up meetings between attendees, and sales and recruiting automation systems that schedule demos or interview rounds. It can also power general AI assistants that manage calendars, ensuring efficient and human-like scheduling without manual intervention.

Advantages of Syncline

The primary advantage of Syncline lies in its ability to completely remove the cognitive load associated with scheduling. Unlike traditional tools that require users to browse and pick slots, Syncline’s AI autonomously identifies the optimal time, considering nuanced factors like energy patterns, timezone fairness, and learned preferences. Its self-learning mechanism ensures continuous improvement, making scheduling progressively more accurate and personalized. For developers, Syncline abstracts away the complexities of OAuth, timezone math, and calendar edge cases, significantly accelerating AI agent development and deployment. The native MCP support further simplifies integration for AI agents, allowing for more autonomous and intelligent workflows.

Pricing and Plans

Syncline offers flexible pricing tiers designed to scale with your needs, starting with a generous free option. The Developer tier is free forever, providing 25 meetings per month, full API access, 5 API keys, webhooks, MCP support, and community support—perfect for testing and side projects. Paid plans, which include Founder's Access (40% off for the first 100 customers), are as follows:

• Starter: $49/month (or $29/month with Founder's Access) for small teams, offering 250 meetings/month, up to 3 team members, and email support.
• Pro: $99/month (or $59/month with Founder's Access) for growing AI agents, including 1,000 meetings/month, unlimited team members, usage analytics, and email support.
• Scale: $299/month (or $179/month with Founder's Access) for production deployments, providing 5,000 meetings/month, unlimited team members, advanced analytics, custom domain support, and priority support.
• Enterprise: Starting at $1,999/month for unlimited meetings, SAML/SSO, dedicated support, and custom integrations. Contact sales for details.