---
title: "Lease"
description: "the acquisition system's leave to a host to call one way as one identity at one rate"
section: concepts
address: /concepts/lease
contract: 0476e35e6e275db5
---

# Lease

the acquisition system's leave to a host to call one way as one identity at one rate

[figure: Lease is a fact at shared scope. The drawing shows its fields and the objects that they point at.]

| property | value |
|---|---|
| kind | fact |
| scope | shared |
| key | the way, the identity, the host and when it ends |
| store | acquisition |
| family | sources |



## Fields


| field | type | required | note |
|---|---|---|---|
| `way` | [AccessMethod](/concepts/accessmethod) | yes |  |
| `identity` | `id` | yes |  |
| `host` | `text` | yes |  |
| `rate` | [RateBound](/concepts/ratebound) | yes |  |
| `ends_at` | `time` | yes |  |
| `grant_number` | `count` | yes | a write with a stale grant number is rejected |



## Routes that use it
No route takes or returns Lease directly. The record holds it, and the objects that point at it reach it.