Scheduling infrastructure for AI agents
One API call to check availability and book a slot. Built for developers whose AI agents need to schedule real humans.
import { SlotflowClient } from 'slotflow';const client = new SlotflowClient({ token: 'sk_live_9f8g...' });// Find available slots for your sales repconst { slots } = await client.slots.getAvailableSlots({ humanId: 'hu_8xk2f', date_from: '2026-03-10', date_to: '2026-03-14', duration: 30});// Book the first available slotconst booking = await client.bookings.createBooking({ human_id: 'hu_8xk2f', starts_at: slots[0].starts_at, duration: 30, attendee_name: 'Sarah Miller'});Everything your agent needs
A complete scheduling API. No UI widgets, no iframes, no human in the loop.
Pre-computed slots
One GET request returns available time slots. No calendar math. No timezone bugs. Ready for your agent to parse and act on.
Book in one request
POST a booking and get a confirmed slot back. Race condition protection built in — if two agents grab the same slot, one gets a clean 409.
Webhook notifications
Get notified instantly when bookings are confirmed or cancelled. Automatic retries. Your agent stays in the loop without polling.
Metadata passthrough
Attach arbitrary JSON to any booking. Lead IDs, conversation IDs, agent context — pass it in, get it back in webhooks.
Schedule overrides
Block a two-week vacation in one call. Open Saturday evenings for overtime. Set recurring blocks for team standups. Date ranges, time windows, recurring patterns — your agent handles it all.
Built for agents
REST API with JSON responses, ISO 8601 timestamps, and predictable error codes. No UI. No redirects. Pure infrastructure.
Three API calls. That's it.
Your agent goes from "find a time" to "meeting booked" without leaving its workflow.
Create a human
Register the person whose time gets booked. Set their timezone, working hours, and meeting durations.
POST /v1/humans { "name": "John Smith", "timezone": "America/New_York" }
Query available slots
Your agent asks for open time slots. Slotflow computes availability, filters conflicts, and returns clean JSON.
GET /v1/humans/hu_8xk2f/slots ?date_from=2026-03-10 &date_to=2026-03-14 &duration=30
Book the slot
Your agent picks a slot and books it. Slotflow confirms the booking and fires a webhook to your endpoint.
POST /v1/bookings { "human_id": "hu_8xk2f", "starts_at": "2026-03-10T14:00:00Z", "duration": 30, "attendee_name": "Sarah Miller" }
Install and ship
First-class SDKs so your agent can book meetings in 3 lines of code.
$ npm install slotflowv0.1.0import { SlotflowClient } from "slotflow";
const client = new SlotflowClient({
token: "sk_live_..."
});
const { slots } = await client.slots.getAvailableSlots(...);
const booking = await client.bookings.createBooking(...);$ pip install slotflowv0.1.0from slotflow import Slotflow
client = Slotflow(api_key="sk_live_...")
slots = client.slots.list(...)
booking = client.bookings.create(...)Built for agent workflows
Wherever an AI agent needs to put a human in a time slot, Slotflow is the infrastructure layer.
AI sales agents
Lead comes in at 2am. Your agent qualifies them, sees your rep is on vacation next week but free Thursday at 3pm, and books the demo. Nobody woke up.
GET /v1/humans/hu_sales01/slotsAI recruiting tools
Candidate replies 'yes' to the interview. Your agent finds a slot that works around the hiring manager's recurring team standup and books it instantly.
POST /v1/bookingsSupport escalation
AI handles the easy tickets. When it can't, it checks which support engineer is available — respecting their blocked hours and overtime slots — and books a callback.
GET /v1/humans/hu_support/slotsAI assistants
Your AI assistant knows your team's real availability — base schedules, time-off, even extra Saturday hours. It books meetings without a single calendar conflict.
POST /v1/bookingsSimple, usage-based pricing
Start free. Pay when your agents go to production. No credit card required.
Free
For testing and prototyping
- 1 human
- 2 webhook endpoints
- All API endpoints
- Community docs
Starter
For shipping to production
- 5 humans
- 10 webhook endpoints
- Overage packs available
- Email support
Growth
For scaling agent workflows
- 25 humans
- Unlimited webhooks
- Overage packs available
- Priority email support
Need more? Talk to us about Enterprise — custom limits, dedicated support, SLAs.
Need more bookings? Paid plans include automatic overage packs — $19 per 500 additional bookings. Your agents never hit a wall in production.
Your agent can book meetings.
Right now.
Get your API key and make your first booking in under 10 minutes. Free plan. No credit card.