> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs-beta.getzep.com/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs-beta.getzep.com/_mcp/server.

# Search nodes

POST https://api.getzep.com/api/v4/graphs/{graph_uuid}/search/nodes
Content-Type: application/json

Reference: https://docs-beta.getzep.com/sdk-reference/graph/search-nodes

## Authentication

- `Authorization` header (required) (prefixed with ` Api-Key  `) — Type "Api-Key" followed by a space and the project API key.

## Request

### Path parameters

- `graph_uuid` (string, required) — Graph UUID

### Query parameters

- `limit` (integer, optional) — Page size
- `cursor` (string, optional) — Opaque page cursor

### Body (application/json)

This endpoint expects a v4.SearchRequest.

- `query` (string, required) — The search query.
- `bfs_origin_node_uuids` (list of string, optional) — Nodes used as BFS origins for graph-distance-aware retrieval.
- `center_node_uuid` (string, optional) — The node to rank results by distance from. Required when reranker is node_distance.
- `filters` (v4.SearchFilters, optional) — Filters constraining which items are returned.
- `mmr_lambda` (double, optional) — The diversity weighting used for maximal marginal relevance reranking. Required when reranker is mmr.
- `reranker` (enum, optional) — The reranking strategy applied to retrieved results. Defaults to rrf.
  - Allowed values: `rrf`, `mmr`, `node_distance`, `episode_mentions`, `cross_encoder`

## Response

### 200

OK

- `items` (list of v4.Node, optional) — The nodes on this page.
- `next_cursor` (string, optional) — The cursor to pass as the next request's cursor to fetch the following page; absent when no further pages remain.
- `total_size` (integer, optional) — Omitted for this collection; use next_cursor to detect the end of pagination.

## Errors

### 400 Bad Request Error

Bad Request

- `error` (v4.ErrorBody, optional)

### 401 Unauthorized Error

Unauthorized

- `error` (v4.ErrorBody, optional)

### 403 Forbidden Error

Forbidden

- `error` (v4.ErrorBody, optional)

### 404 Not Found Error

Not Found

- `error` (v4.ErrorBody, optional)

## Types

### v4.SearchFilters

- `connected_node_uuids` (list of string, optional) — Include edges connected to any of these node UUIDs.
- `content_policy_violated` (boolean, optional) — Match episodes by their content-policy result. Supported only on episode search when the project setting include_policy_violating_episodes is true.
- `date_filters` (v4.DateFilters, optional) — Filter results by temporal values.
- `edge_types` (list of string, optional) — Include results with any of these edge types.
- `edge_uuids` (list of string, optional) — Include results with any of these edge UUIDs.
- `episode_uuids` (list of string, optional) — Include results derived from any of these episode UUIDs.
- `exclude_edge_types` (list of string, optional) — Exclude results with any of these edge types.
- `exclude_node_labels` (list of string, optional) — Exclude results with any of these node labels.
- `metadata_filters` (v4.MetadataFilterGroup, optional) — Filter results by episode metadata.
- `node_labels` (list of string, optional) — Include results with any of these node labels.
- `property_filters` (list of v4.PropertyFilter, optional) — Filter results by node or edge properties.
- `source_node_uuids` (list of string, optional) — Include edges that start at any of these node UUIDs.
- `target_node_uuids` (list of string, optional) — Include edges that end at any of these node UUIDs.

### v4.Node

- `episode_uuids` (list of string, required) — The UUIDs of the live episodes that mention this node, newest first. The list is complete when `episode_uuids_truncated` is false. The list holds the newest 100 when the node has more than 100 source episodes; list episodes with the `mentioned_node_uuids` filter to read them all.
- `episode_uuids_truncated` (boolean, required) — True when the node has more than 100 source episodes, so `episode_uuids` holds only the newest 100, or when provenance is unavailable. False means `episode_uuids` is the complete set.
- `attributes` (map from string to any, optional) — Additional attributes of the node, as defined by its entity type.
- `created_at` (string, optional) — The time the node was created.
- `degree` (integer, optional) — The count of live entity edges that touch this node, in both directions. Present only when the list request orders by `degree`.
- `graph_uuid` (string, optional) — The unique identifier of the graph this node belongs to.
- `labels` (list of string, optional) — The entity type labels assigned to the node.
- `name` (string, optional) — The name of the entity that the node represents.
- `relevance` (double, optional) — A cross-encoder-derived relevance score, present only when the cross-encoder reranker scored this result; like score, it is omitted from plain list results.
- `score` (double, optional) — The ranking score returned with every search result; omitted when the node appears in a plain list rather than a search result.
- `summary` (string, optional) — A generated summary of the entity that the node represents.
- `uuid` (string, optional) — The node UUID, assigned by Zep.

### v4.ErrorBody

- `code` (string, optional)
- `details` (map from string to any, optional)
- `message` (string, optional)
- `param` (string, optional)
- `request_id` (string, optional)

### v4.DateFilters

- `any_of` (list of v4.DateFilterGroup, optional) — Each group is combined with OR logic.

### v4.MetadataFilterGroup

- `filters` (list of v4.MetadataFilter, optional) — The metadata predicates in this group.
- `groups` (list of v4.MetadataFilterGroup, optional) — The nested metadata groups in this group.
- `type` (enum, optional) — The logical operator for this group.
  - Allowed values: `and`, `or`

### v4.PropertyFilter

- `operator` (enum, optional) — The lowercase comparison operator.
  - Allowed values: `eq`, `ne`, `gt`, `lt`, `gte`, `lte`, `in`, `is_null`, `is_not_null`
- `property_name` (string, optional) — The property name to compare.
- `value` (V4PropertyFilterValue, optional) — The comparison value. Use an array for in. Its string members must be non-empty, contain no comma, and have no surrounding whitespace.

### v4.DateFilterGroup

- `all_of` (list of v4.DateFilter, optional) — All conditions in the group must match.

### v4.MetadataFilter

- `operator` (enum, optional) — The lowercase comparison operator.
  - Allowed values: `eq`, `ne`, `gt`, `lt`, `gte`, `lte`, `in`, `contains`, `is_null`, `is_not_null`
- `property_name` (string, optional) — The metadata property name to compare.
- `value` (V4MetadataFilterValue, optional) — The comparison value. Use an array for in, a non-empty string for contains, and omit the field for null operators.

### V4PropertyFilterValue

The comparison value. Use an array for in. Its string members must be non-empty, contain no comma, and have no surrounding whitespace.

### v4.DateFilter

- `field` (enum, optional) — The temporal field to compare.
  - Allowed values: `created_at`, `valid_at`, `invalid_at`, `expired_at`
- `operator` (enum, optional) — The lowercase comparison operator.
  - Allowed values: `eq`, `ne`, `gt`, `lt`, `gte`, `lte`, `is_null`, `is_not_null`
- `value` (string, optional) — The RFC 3339 timestamp. Omit this field for null operators.

### V4MetadataFilterValue

The comparison value. Use an array for in, a non-empty string for contains, and omit the field for null operators.

## Examples

**Request**

```json
{
  "query": "string"
}
```

**Response**

```json
{
  "items": [
    {
      "episode_uuids": [
        "string"
      ],
      "episode_uuids_truncated": true,
      "attributes": {},
      "created_at": "string",
      "degree": 1,
      "graph_uuid": "string",
      "labels": [
        "string"
      ],
      "name": "string",
      "relevance": 1.1,
      "score": 1.1,
      "summary": "string",
      "uuid": "string"
    }
  ],
  "next_cursor": "string",
  "total_size": 1
}
```