--- layout: api page_title: Certificate Authority - Connect - HTTP API description: |- The /connect/ca endpoints provide tools for interacting with Connect's Certificate Authority mechanism via Consul's HTTP API. --- # Certificate Authority (CA) - Connect HTTP API The `/connect/ca` endpoints provide tools for interacting with Connect's Certificate Authority mechanism. ## List CA Root Certificates This endpoint returns the current list of trusted CA root certificates in the cluster. | Method | Path | Produces | | ------ | ------------------- | ------------------ | | `GET` | `/connect/ca/roots` | `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` | ### Parameters - `pem` `(boolean: false)` - Specifies that the return body should be a PEM encoded certificate chain suitable for use by applications needing to trust Connect CA signed certificates. The Content-Type will be set to `application/pem-certificate-chain` to indicate the format of the response. ### Sample Request ```shell-session $ curl \ http://127.0.0.1:8500/v1/connect/ca/roots ``` ### Sample Response ```json { "ActiveRootID": "c7:bd:55:4b:64:80:14:51:10:a4:b9:b9:d7:e0:75:3f:86:ba:bb:24", "TrustDomain": "7f42f496-fbc7-8692-05ed-334aa5340c1e.consul", "Roots": [ { "ID": "c7:bd:55:4b:64:80:14:51:10:a4:b9:b9:d7:e0:75:3f:86:ba:bb:24", "Name": "Consul CA Root Cert", "SerialNumber": 7, "SigningKeyID": "2d:09:5d:84:b9:89:4b:dd:e3:88:bb:9c:e2:b2:69:81:1f:4b:a6:fd:4d:df:ee:74:63:f3:74:55:ca:b0:b5:65", "ExternalTrustDomain": "a1499528-fbf6-df7b-05e5-ae81e1873fc4", "NotBefore": "2018-05-25T21:39:23Z", "NotAfter": "2028-05-22T21:39:23Z", "RootCert": "-----BEGIN CERTIFICATE-----\nMIICmDCCAj6gAwIBAgIBBzAKBggqhkjOPQQDAjAWMRQwEgYDVQQDEwtDb25zdWwg\nQ0EgNzAeFw0xODA1MjUyMTM5MjNaFw0yODA1MjIyMTM5MjNaMBYxFDASBgNVBAMT\nC0NvbnN1bCBDQSA3MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEq4S32Pu0/VL4\nG75gvdyQuAhqMZFsfBRwD3pgvblgZMeJc9KDosxnPR+W34NXtMD/860NNVJIILln\n9lLhIjWPQqOCAXswggF3MA4GA1UdDwEB/wQEAwIBhjAPBgNVHRMBAf8EBTADAQH/\nMGgGA1UdDgRhBF8yZDowOTo1ZDo4NDpiOTo4OTo0YjpkZDplMzo4ODpiYjo5Yzpl\nMjpiMjo2OTo4MToxZjo0YjphNjpmZDo0ZDpkZjplZTo3NDo2MzpmMzo3NDo1NTpj\nYTpiMDpiNTo2NTBqBgNVHSMEYzBhgF8yZDowOTo1ZDo4NDpiOTo4OTo0YjpkZDpl\nMzo4ODpiYjo5YzplMjpiMjo2OTo4MToxZjo0YjphNjpmZDo0ZDpkZjplZTo3NDo2\nMzpmMzo3NDo1NTpjYTpiMDpiNTo2NTA/BgNVHREEODA2hjRzcGlmZmU6Ly83ZjQy\nZjQ5Ni1mYmM3LTg2OTItMDVlZC0zMzRhYTUzNDBjMWUuY29uc3VsMD0GA1UdHgEB\n/wQzMDGgLzAtgis3ZjQyZjQ5Ni1mYmM3LTg2OTItMDVlZC0zMzRhYTUzNDBjMWUu\nY29uc3VsMAoGCCqGSM49BAMCA0gAMEUCIBBBDOWXWApx4S6bHJ49AW87Nw8uQ/gJ\nJ6lvm3HzEQw2AiEA4PVqWt+z8fsQht0cACM42kghL97SgDSf8rgCqfLYMng=\n-----END CERTIFICATE-----\n", "IntermediateCerts": null, "Active": true, "PrivateKeyType": "ec", "PrivateKeyBits": 256, "CreateIndex": 8, "ModifyIndex": 8 } ] } ``` ### Sample PEM Encoded Response ``` -----BEGIN CERTIFICATE----- MIICDzCCAbWgAwIBAgIBCDAKBggqhkjOPQQDAjAxMS8wLQYDVQQDEyZwcmktMWNq OHphbW0uY29uc3VsLmNhLjA3OTMzYTEzLmNvbnN1bDAeFw0yMDEwMDgxOTQ4MzZa Fw0zMDEwMDgxOTQ4MzZaMDExLzAtBgNVBAMTJnByaS0xY2o4emFtbS5jb25zdWwu Y2EuMDc5MzNhMTMuY29uc3VsMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEDCkT IIxSDhA3XCKIuDcj4s9IVjf0NQT6QHPAzFBb964/4fTtX/J8x2n6A1lOXowFIWtx GvAD/IJF74zn5ZA/wqOBvTCBujAOBgNVHQ8BAf8EBAMCAYYwDwYDVR0TAQH/BAUw AwEB/zApBgNVHQ4EIgQguPlAkrIkOnLr9+8DZ4afZWrYZUd2LB6nMJP72jDVxmcw KwYDVR0jBCQwIoAguPlAkrIkOnLr9+8DZ4afZWrYZUd2LB6nMJP72jDVxmcwPwYD VR0RBDgwNoY0c3BpZmZlOi8vMDc5MzNhMTMtYTYyYi1iZTkwLTQ0ZjEtZGVkOWE2 NjczNzZlLmNvbnN1bDAKBggqhkjOPQQDAgNIADBFAiEA0ExkvLESG1I1TMFVronr 2fjoORukgzBgRMbWAEC2DJ0CIACsxeFS6tprHiRv4cEa2Md75h1iIisb2V2U7dvY Z7Rr -----END CERTIFICATE----- -----BEGIN CERTIFICATE----- MIICEzCCAbigAwIBAgIBCTAKBggqhkjOPQQDAjAxMS8wLQYDVQQDEyZwcmktMWNq OHphbW0uY29uc3VsLmNhLjA3OTMzYTEzLmNvbnN1bDAeFw0yMDEwMDgxOTQ3Mzda Fw0yMTEwMDgxOTQ3MzdaMDExLzAtBgNVBAMTJnNlYy0xbmIxMHZ0by5jb25zdWwu Y2EuMDc5MzNhMTMuY29uc3VsMFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE9zWs UxEYvLZUySoflz6e+HqLcaXM8heNRRkAiLiGkmn6nan6olnnrVBLyHAfHaHWJQ9W wI8HwSZf0g4Ms16LWKOBwDCBvTAOBgNVHQ8BAf8EBAMCAYYwEgYDVR0TAQH/BAgw BgEB/wIBADApBgNVHQ4EIgQg+csK9Sg6odIfLLk3aiRY2OB4O0DiOa1XRTVdOVDE t6QwKwYDVR0jBCQwIoAguPlAkrIkOnLr9+8DZ4afZWrYZUd2LB6nMJP72jDVxmcw PwYDVR0RBDgwNoY0c3BpZmZlOi8vMDc5MzNhMTMtYTYyYi1iZTkwLTQ0ZjEtZGVk OWE2NjczNzZlLmNvbnN1bDAKBggqhkjOPQQDAgNJADBGAiEAqJ60KJepAP4Xe4Ak 5UYB1huu/B8Lyz5yEYUpUplgdD4CIQCrrkoXoD4SGJ4HaIjy6a5eNf3YkhLpmbXO 6DL6FXVa1Q== -----END CERTIFICATE----- ``` ## Get CA Configuration This endpoint returns the current CA configuration. | Method | Path | Produces | | ------ | --------------------------- | ------------------ | | `GET` | `/connect/ca/configuration` | `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` | `operator:write` 1 | 1 ACL required was operator:read prior to versions 1.8.6, 1.7.10, and 1.6.10. The corresponding CLI command is [`consul connect ca get-config`](/commands/connect/ca#get-config). ### Sample Request ```shell-session $ curl \ http://127.0.0.1:8500/v1/connect/ca/configuration ``` ### Sample Response ```json { "Provider": "consul", "Config": { "LeafCertTTL": "72h", "IntermediateCertTTL": "8760h" }, "CreateIndex": 5, "ModifyIndex": 5 } ``` ## Update CA Configuration This endpoint updates the configuration for the CA. If this results in a new root certificate being used, the [Root Rotation](/docs/connect/ca#root-certificate-rotation) process will be triggered. | Method | Path | Produces | | ------ | --------------------------- | ------------------ | | `PUT` | `/connect/ca/configuration` | `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` | `operator:write` | The corresponding CLI command is [`consul connect ca set-config`](/commands/connect/ca#set-config). ### Parameters - `Provider` `(string: )` - Specifies the CA provider type to use. - `Config` `(map[string]string: )` - The raw configuration to use for the chosen provider. For more information on configuring the Connect CA providers, see [Provider Config](/docs/connect/ca). - `ForceWithoutCrossSigning` `(bool: )` - Indicates that the CA change should be forced to complete even if the current CA doesn't support cross signing. Changing root without cross-signing may cause temporary connection failures until the rollout completes. See [Forced Rotation Without Cross-Signing](/docs/connect/ca#forced-rotation-without-cross-signing) for more detail. ### Sample Payload ```json { "Provider": "consul", "Config": { "LeafCertTTL": "72h", "PrivateKey": "-----BEGIN RSA PRIVATE KEY-----...", "RootCert": "-----BEGIN CERTIFICATE-----...", "IntermediateCertTTL": "8760h" }, "ForceWithoutCrossSigning": false } ``` ### Sample Request ```shell-session $ curl \ --request PUT \ --data @payload.json \ http://127.0.0.1:8500/v1/connect/ca/configuration ```