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PATCH
Updates configuration on an existing index. You can update deletion_protection, tags, and read_capacity (for example, converting from OnDemand to Dedicated). The schema itself is immutable — to change field types or add new indexed fields, create a new index and re-upsert. This is a partial update: only the fields you include in the request body are modified. Unspecified fields are left unchanged. To clear tags, send "tags": {}.

Authorizations

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Api-Key
string
header
required

An API Key is required to call Pinecone APIs. Get yours from the console.

Headers

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X-Pinecone-Api-Version
string
default:2026-07
required

Required date-based version header

Path Parameters

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index_name
string
required

The name of the index to configure.

Body

application/json

Configuration updates to apply to an existing index. All fields are optional; only the fields you include are modified.

  • deployment: Update pod-based scaling parameters (replicas, pod_type). Deployment type and cloud/region cannot be changed.
  • schema: Update semantic_text field embedding parameters. Only write_parameters and read_parameters may be changed; the model cannot be changed after creation.
  • read_capacity: Update read capacity mode or dedicated node configuration for managed and BYOC indexes. Not applicable to pod-based indexes.
  • tags: Update or delete index tags. Setting a tag value to "" removes the tag.
  • deletion_protection: Enable or disable deletion protection.
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deployment
Pod-based · object

Deployment update parameters for pod-based indexes. Specify replicas, pod_type, or both. Deployment type, cloud/region, and environment cannot be changed after creation. Do not include a deployment_type field; it is not accepted.

Example:
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schema
object

Schema updates to apply to an existing index. Only semantic_text field parameters can be updated after index creation. The model itself cannot be changed once set; only write_parameters and read_parameters may be updated if the model stays the same.

Example:
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read_capacity
On-demand · object

Read capacity changes for an existing managed or BYOC index. Switch to OnDemand, or set Dedicated and change any subset of node_type, scaling, and manual replicas/shards; fields you omit keep their current value. BYOC indexes do not support OnDemand.

Example:
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tags
object | null

Custom user tags added to an index, at most 20 per index. Keys must be 80 characters or less and alphanumeric, '_', or '-'. Values must be 120 characters or less and consist of printable ASCII characters or spaces. To unset a key, set the value to be an empty string. null in responses when the index has no tags.

Example:
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deletion_protection
string
default:disabled

Whether deletion protection is enabled/disabled for the index.

Possible values: disabled or enabled.

Response

The configuration change was recorded and the updated index is returned. Changes that resize the index (replicas, shards, read capacity) are applied asynchronously; poll the index status to see when they take effect.

The IndexModel describes the configuration and status of a Pinecone index.

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name
string
required

The name of the index. Resource name must be 1-45 characters long, start and end with an alphanumeric character, and consist only of lower case alphanumeric characters or '-'.

Required string length: 1 - 45
Example:

"example-index"

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host
string
required

The URL address where the index is hosted.

Example:

"semantic-search-c01b5b5.svc.us-west1-gcp.pinecone.io"

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status
object
required

The current status of the index.

Example:
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deployment
Pod-based · object
required

The deployment configuration of a Pinecone index. The deployment_type field indicates which infrastructure model the index uses.

  • pod: Dedicated pod-based infrastructure. Suitable for workloads that require predictable performance.
  • managed: Serverless infrastructure managed by Pinecone, including full-text search indexes. Scales automatically; billed per usage.
  • byoc: Bring-your-own-compute. Runs in customer-managed infrastructure.
Example:
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schema
object
required

The schema of a Pinecone index. The schema defines the typed fields that documents in the index can contain, including vector fields, semantic text fields, and metadata fields.

Example:
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deletion_protection
string
default:disabled
required

Whether deletion protection is enabled/disabled for the index.

Possible values: disabled or enabled.

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private_host
string

The private endpoint URL of an index.

Example:

"semantic-search-c01b5b5.svc.private.us-west1-gcp.pinecone.io"

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read_capacity
On-demand · object

Response containing read capacity configuration

Example:
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source_collection
string

The name of the collection this index was created from, if any.

Example:

"movie-embeddings"

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source_backup_id
string

The ID of the backup this index was restored from, if any.

Example:

"670e8400-e29b-41d4-a716-446655440000"

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cmek_id
string

The ID of the customer-managed encryption key (CMEK) used to encrypt this index, if any.

Example:

"arn:aws:kms:us-east-1:123456789012:key/mrk-abc123"

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tags
object | null

Custom user tags added to an index, at most 20 per index. Keys must be 80 characters or less and alphanumeric, '_', or '-'. Values must be 120 characters or less and consist of printable ASCII characters or spaces. To unset a key, set the value to be an empty string. null in responses when the index has no tags.

Example: