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---
layout: api
page_title: Legacy ACLs - HTTP API
description: >-
The /acl endpoints create, update, destroy, and query Legacy ACL tokens in
Consul.
---
-> **Consul 1.4.0 deprecates the legacy ACL system completely.** It's _strongly_
recommended you do not build anything using the legacy system and consider using
the new ACL [Token](/docs/api/acl-token) and [Policy](/docs/api/acl-policy) APIs instead.
# ACL HTTP API
These `/acl` endpoints create, update, destroy, and query ACL tokens in Consul. For more information about ACLs, please check the
[ACL tutorial](https://learn.hashicorp.com/tutorials/consul/access-control-setup-production).
## Bootstrap ACLs
This endpoint does a special one-time bootstrap of the ACL system, making the first
management token if the [`acl_master_token`](/docs/agent/options#acl_master_token)
is not specified in the Consul server configuration, and if the cluster has not been
bootstrapped previously. This is available in Consul 0.9.1 and later, and requires all
Consul servers to be upgraded in order to operate.
This provides a mechanism to bootstrap ACLs without having any secrets present in Consul's
configuration files.
| Method | Path | Produces |
| ------ | ---------------- | ------------------ |
| `PUT` | `/acl/bootstrap` | `application/json` |
The table below shows this endpoint's support for
[blocking queries](/api/features/blocking),
[consistency modes](/api/features/consistency),
[agent caching](/api/features/caching), and
[required ACLs](/api#authentication).
| Blocking Queries | Consistency Modes | Agent Caching | ACL Required |
| ---------------- | ----------------- | ------------- | ------------ |
| `NO` | `none` | `none` | `none` |
### Sample Request
```shell-session
$ curl \
--request PUT \
http://127.0.0.1:8500/v1/acl/bootstrap
```
### Sample Response
```json
{
"ID": "adf4238a-882b-9ddc-4a9d-5b6758e4159e"
}
```
You can detect if something has interfered with the ACL bootstrapping process by
checking the response code. A 200 response means that the bootstrap was a success, and
a 403 means that the cluster has already been bootstrapped, at which point you should
consider the cluster in a potentially compromised state.
The returned token will be a management token which can be used to further configure the
ACL system. Please check the
[ACL tutorial](https://learn.hashicorp.com/tutorials/consul/access-control-setup-production) for more details.
## Create ACL Token
This endpoint makes a new ACL token.
| Method | Path | Produces |
| ------ | ------------- | ------------------ |
| `PUT` | `/acl/create` | `application/json` |
The table below shows this endpoint's support for
[blocking queries](/api/features/blocking),
[consistency modes](/api/features/consistency),
[agent caching](/api/features/caching), and
[required ACLs](/api#authentication).
| Blocking Queries | Consistency Modes | Agent Caching | ACL Required |
| ---------------- | ----------------- | ------------- | ------------ |
| `NO` | `none` | `none` | `management` |
### Parameters
- `ID` `(string: "")` - Specifies the ID of the ACL. If not provided, a UUID is
generated.
- `Name` `(string: "")` - Specifies a human-friendly name for the ACL token.
- `Type` `(string: "client")` - Specifies the type of ACL token. Valid values
are: `client` and `management`.
- `Rules` `(string: "")` - Specifies rules for this ACL token. The format of the
`Rules` property is documented in the [ACL tutorial](https://learn.hashicorp.com/tutorials/consul/access-control-setup-production).
### Sample Payload
```json
{
"Name": "my-app-token",
"Type": "client",
"Rules": ""
}
```
### Sample Request
```shell-session
$ curl \
--request PUT \
--data @payload.json \
http://127.0.0.1:8500/v1/acl/create
```
### Sample Response
```json
{
"ID": "adf4238a-882b-9ddc-4a9d-5b6758e4159e"
}
```
## Update ACL Token
This endpoint is used to modify the policy for a given ACL token. Instead of
generating a new token ID, the `ID` field must be provided.
| Method | Path | Produces |
| ------ | ------------- | ------------------ |
| `PUT` | `/acl/update` | `application/json` |
The table below shows this endpoint's support for
[blocking queries](/api/features/blocking),
[consistency modes](/api/features/consistency),
[agent caching](/api/features/caching), and
[required ACLs](/api#authentication).
| Blocking Queries | Consistency Modes | Agent Caching | ACL Required |
| ---------------- | ----------------- | ------------- | ------------ |
| `NO` | `none` | `none` | `management` |
### Parameters
The parameters are the same as the _create_ endpoint, except the `ID` field is
required.
### Sample Payload
```json
{
"ID": "adf4238a-882b-9ddc-4a9d-5b6758e4159e",
"Name": "my-app-token-updated",
"Type": "client",
"Rules": "# New Rules"
}
```
### Sample Request
```shell-session
$ curl \
--request PUT \
--data @payload.json \
http://127.0.0.1:8500/v1/acl/update
```
### Sample Response
```json
{
"ID": "adf4238a-882b-9ddc-4a9d-5b6758e4159e"
}
```
## Delete ACL Token
This endpoint deletes an ACL token with the given ID.
| Method | Path | Produces |
| ------ | -------------------- | ------------------ |
| `PUT` | `/acl/destroy/:uuid` | `application/json` |
Even though the return type is application/json, the value is either true or false, indicating whether the delete succeeded.
The table below shows this endpoint's support for
[blocking queries](/api/features/blocking),
[consistency modes](/api/features/consistency),
[agent caching](/api/features/caching), and
[required ACLs](/api#authentication).
| Blocking Queries | Consistency Modes | Agent Caching | ACL Required |
| ---------------- | ----------------- | ------------- | ------------ |
| `NO` | `none` | `none` | `management` |
### Parameters
- `uuid` `(string: <required>)` - Specifies the UUID of the ACL token to
destroy. This is required and is specified as part of the URL path.
### Sample Request
```shell-session
$ curl \
--request PUT \
http://127.0.0.1:8500/v1/acl/destroy/8f246b77-f3e1-ff88-5b48-8ec93abf3e05
```
### Sample Response
```json
true
```
## Read ACL Token
This endpoint reads an ACL token with the given ID.
| Method | Path | Produces |
| ------ | ----------------- | ------------------ |
| `GET` | `/acl/info/:uuid` | `application/json` |
The table below shows this endpoint's support for
[blocking queries](/api/features/blocking),
[consistency modes](/api/features/consistency),
[agent caching](/api/features/caching), and
[required ACLs](/api#authentication).
| Blocking Queries | Consistency Modes | Agent Caching | ACL Required |
| ---------------- | ----------------- | ------------- | ------------ |
| `YES` | `all` | `none` | `none` |
Note: No ACL is required because the ACL is specified in the URL path.
### Parameters
- `uuid` `(string: <required>)` - Specifies the UUID of the ACL token to
read. This is required and is specified as part of the URL path.
### Sample Request
```shell-session
$ curl \
http://127.0.0.1:8500/v1/acl/info/8f246b77-f3e1-ff88-5b48-8ec93abf3e05
```
### Sample Response
```json
[
{
"CreateIndex": 3,
"ModifyIndex": 3,
"ID": "8f246b77-f3e1-ff88-5b48-8ec93abf3e05",
"Name": "Client Token",
"Type": "client",
"Rules": "..."
}
]
```
## Clone ACL Token
This endpoint clones an ACL and returns a new token `ID`. This allows a token to
serve as a template for others, making it simple to generate new tokens without
complex rule management.
| Method | Path | Produces |
| ------ | ------------------ | ------------------ |
| `PUT` | `/acl/clone/:uuid` | `application/json` |
The table below shows this endpoint's support for
[blocking queries](/api/features/blocking),
[consistency modes](/api/features/consistency),
[agent caching](/api/features/caching), and
[required ACLs](/api#authentication).
| Blocking Queries | Consistency Modes | Agent Caching | ACL Required |
| ---------------- | ----------------- | ------------- | ------------ |
| `NO` | `none` | `none` | `management` |
### Parameters
- `uuid` `(string: <required>)` - Specifies the UUID of the ACL token to
be cloned. This is required and is specified as part of the URL path.
### Sample Request
```shell-session
$ curl \
--request PUT \
http://127.0.0.1:8500/v1/acl/clone/8f246b77-f3e1-ff88-5b48-8ec93abf3e05
```
### Sample Response
```json
{
"ID": "adf4238a-882b-9ddc-4a9d-5b6758e4159e"
}
```
## List ACLs
This endpoint lists all the active ACL tokens.
| Method | Path | Produces |
| ------ | ----------- | ------------------ |
| `GET` | `/acl/list` | `application/json` |
The table below shows this endpoint's support for
[blocking queries](/api/features/blocking),
[consistency modes](/api/features/consistency),
[agent caching](/api/features/caching), and
[required ACLs](/api#authentication).
| Blocking Queries | Consistency Modes | Agent Caching | ACL Required |
| ---------------- | ----------------- | ------------- | ------------ |
| `YES` | `all` | `none` | `management` |
### Sample Request
```shell-session
$ curl \
http://127.0.0.1:8500/v1/acl/list
```
### Sample Response
```json
[
{
"CreateIndex": 3,
"ModifyIndex": 3,
"ID": "8f246b77-f3e1-ff88-5b48-8ec93abf3e05",
"Name": "Client Token",
"Type": "client",
"Rules": "..."
}
]
```
## Check ACL Replication
This endpoint returns the status of the ACL replication process in the
datacenter. This is intended to be used by operators, or by automation checking
the health of ACL replication.
Please check the [ACL Replication tutorial](https://learn.hashicorp.com/tutorials/consul/access-control-replication-multiple-datacenters)
for more details.
| Method | Path | Produces |
| ------ | ------------------ | ------------------ |
| `GET` | `/acl/replication` | `application/json` |
The table below shows this endpoint's support for
[blocking queries](/api/features/blocking),
[consistency modes](/api/features/consistency),
[agent caching](/api/features/caching), and
[required ACLs](/api#authentication).
| Blocking Queries | Consistency Modes | Agent Caching | ACL Required |
| ---------------- | ----------------- | ------------- | ------------ |
| `NO` | `consistent` | `none` | `none` |
### Parameters
- `dc` `(string: "")` - Specifies the datacenter to query. This will default to
the datacenter of the agent being queried. This is specified as part of the
URL as a query parameter.
### Sample Request
```shell-session
$ curl \
http://127.0.0.1:8500/v1/acl/replication
```
### Sample Response
```json
{
"Enabled": true,
"Running": true,
"SourceDatacenter": "dc1",
"ReplicatedIndex": 1976,
"LastSuccess": "2016-08-05T06:28:58Z",
"LastError": "2016-08-05T06:28:28Z"
}
```
- `Enabled` reports whether ACL replication is enabled for the datacenter.
- `Running` reports whether the ACL replication process is running. The process
may take approximately 60 seconds to begin running after a leader election
occurs.
- `SourceDatacenter` is the authoritative ACL datacenter that ACLs are being
replicated from, and will match the
[`primary_datacenter`](/docs/agent/options#primary_datacenter) configuration.
- `ReplicatedIndex` is the last index that was successfully replicated. You can
compare this to the `X-Consul-Index` header returned by the
[`/v1/acl/list`](#list-acls) endpoint to determine if the replication process
has gotten all available ACLs. Replication runs as a background process
approximately every 30 seconds, and that local updates are rate limited to 100
updates/second, so so it may take several minutes to perform the initial sync
of a large set of ACLs. After the initial sync, replica lag should be on the
order of about 30 seconds.
- `LastSuccess` is the UTC time of the last successful sync operation. Since ACL
replication is done with a blocking query, this may not update for up to 5
minutes if there have been no ACL changes to replicate. A zero value of
"0001-01-01T00:00:00Z" will be present if no sync has been successful.
- `LastError` is the UTC time of the last error encountered during a sync
operation. If this time is later than `LastSuccess`, you can assume the
replication process is not in a good state. A zero value of
"0001-01-01T00:00:00Z" will be present if no sync has resulted in an error.
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