Get similar feedback records

GET

/v1/feedback-records/{id}/similar

curl --request GET \
  --url 'http://localhost:8080/v1/feedback-records/018e1234-5678-9abc-def0-123456789abc/similar?limit=10&cursor=eyJkIjowLjEsImkiOiIwMThlMTIzNC01Njc4LTlhYmMtZGVmMC0xMTExMTExMTExMTEifQ%3D%3D&min_score=0.7' \
  --header 'Authorization: Bearer <token>'

• Deployed Formbricks Hub instance (self-hosted or Formbricks Cloud)
• Formbricks staging Hub server
• Formbricks Cloud
• Formbricks Cloud (staging)
• Local development server

Returns feedback record IDs and similarity scores for records similar to the given one (by embedding). Only available when embeddings are configured (EMBEDDING_PROVIDER and EMBEDDING_MODEL set). Supported providers: openai, google (Gemini Developer API / Google AI Studio), google-gemini (Gemini Enterprise Agent Platform API). When embeddings are disabled, this endpoint returns 503 Service Unavailable. Hub derives the tenant from the source feedback record and scopes the nearest-neighbor search to that tenant.

Authorizations

• ApiKeyAuth

Parameters

Path Parameters

id

required

string format: uuid

Example

018e1234-5678-9abc-def0-123456789abc

Feedback record ID (UUID)

Query Parameters

limit

integer

default: 10 >= 1 <= 100

Number of results to return (default 10, max 100). Consistent with list endpoints.

cursor

string

Example

eyJkIjowLjEsImkiOiIwMThlMTIzNC01Njc4LTlhYmMtZGVmMC0xMTExMTExMTExMTEifQ==

Omit for the first page. For the next page, use the exact value from the previous response’s next_cursor. Opaque (base64-encoded); keyset pagination.

min_score

number format: float

default: 0.7 <= 1

Minimum similarity score (0..1); only results with score >= min_score are returned. Default 0.7 to reduce noise.

Responses

200

OK

Media typeapplication/json

object

data

required

List of feedback record IDs with similarity scores (0 = unrelated, 1 = identical). Consistent with list endpoints.

Array<object>

<= 100 items

object

feedback_record_id

required

Feedback record UUID

string format: uuid

score

required

Similarity score (0..1)

number format: double

field_label

required

Label of the feedback field (included in embedding for context). May be empty if the source record had no label.

string

value_text

required

Value_text of the feedback record. May be empty if the source had no text; embeddings are only created for records with non-empty value_text, but the field can be cleared after embedding creation. A record longer than EMBEDDING_MAX_INPUT_BYTES was embedded from at most its first N bytes, so the vector may not cover the whole value.

string

limit

required

Limit used in query (echoed for consistency with list endpoints)

integer

next_cursor

Opaque cursor for the next page (keyset paging). Present only when there may be more results (full page returned). Omit when no next page. Use this exact value as the cursor query param for the next page.

string

Example

{
  "next_cursor": "eyJkIjowLjEsImkiOiIwMThlMTIzNC01Njc4LTlhYmMtZGVmMC0xMTExMTExMTExMTEifQ=="
}

400

Bad Request (e.g. invalid cursor)

Media typeapplication/problem+json

RFC 9457 problem details (application/problem+json). Branch on the stable code member rather than on title or type.

object

code

required

Stable, machine-readable error code; the primary value to branch on. service_unavailable indicates a feature or dependency is temporarily unavailable and the request may be retried later. tenant_write_conflict indicates the write conflicted with an in-progress tenant data purge (or vice versa) and may be retried later unchanged. All other codes are terminal until the request itself is changed.

string

Allowed values: validation bad_request unauthorized forbidden not_found conflict tenant_write_conflict method_not_allowed content_too_large service_unavailable internal_server_error

detail

A human-readable explanation specific to this occurrence of the problem.

string

details

Optional structured context for this problem, e.g. resource_type on a 404.

object

key

additional properties

any

instance

A URI reference (typically the request path) identifying the specific occurrence of the problem.

string

invalid_params

Field-level validation failures (RFC 9457 “invalid_params” extension). Present on validation errors.

Array<object>

<= 100 items

A single invalid request parameter (RFC 9457 “invalid_params” extension member).

object

name

required

Dotted path to the offending request field, e.g. ‘field_type’ or ‘items[0].field_type’.

string

reason

required

Human- and agent-readable explanation of why the value is invalid, naming allowed values or constraints where applicable so the request can be corrected without guessing.

string

request_id

required

Identifier for this request, also returned in the X-Request-ID response header; include it when reporting a problem.

string

status

required

HTTP status code

integer format: int64

title

required

A short, human-readable summary of the problem type. This value should not change between occurrences of the error.

string

type

A URI reference identifying the problem type.

string format: uri

Example

{
  "code": "validation",
  "detail": "One or more request parameters are invalid",
  "instance": "/v1/feedback-records",
  "invalid_params": [
    {
      "name": "field_type",
      "reason": "must be one of: text, categorical, nps, csat, ces, rating, number, boolean, date"
    }
  ],
  "request_id": "0190a1b2-c3d4-7e5f-8a9b-0c1d2e3f4a5b",
  "status": 400,
  "title": "Bad Request",
  "type": "https://hub.formbricks.com/problems/bad-request"
}

404

Not Found (feedback record has no embedding for the current model, or source record has no tenant)

Media typeapplication/problem+json

RFC 9457 problem details (application/problem+json). Branch on the stable code member rather than on title or type.

object

code

required

Stable, machine-readable error code; the primary value to branch on. service_unavailable indicates a feature or dependency is temporarily unavailable and the request may be retried later. tenant_write_conflict indicates the write conflicted with an in-progress tenant data purge (or vice versa) and may be retried later unchanged. All other codes are terminal until the request itself is changed.

string

Allowed values: validation bad_request unauthorized forbidden not_found conflict tenant_write_conflict method_not_allowed content_too_large service_unavailable internal_server_error

detail

A human-readable explanation specific to this occurrence of the problem.

string

details

Optional structured context for this problem, e.g. resource_type on a 404.

object

key

additional properties

any

instance

A URI reference (typically the request path) identifying the specific occurrence of the problem.

string

invalid_params

Field-level validation failures (RFC 9457 “invalid_params” extension). Present on validation errors.

Array<object>

<= 100 items

A single invalid request parameter (RFC 9457 “invalid_params” extension member).

object

name

required

Dotted path to the offending request field, e.g. ‘field_type’ or ‘items[0].field_type’.

string

reason

required

Human- and agent-readable explanation of why the value is invalid, naming allowed values or constraints where applicable so the request can be corrected without guessing.

string

request_id

required

Identifier for this request, also returned in the X-Request-ID response header; include it when reporting a problem.

string

status

required

HTTP status code

integer format: int64

title

required

A short, human-readable summary of the problem type. This value should not change between occurrences of the error.

string

type

A URI reference identifying the problem type.

string format: uri

Example

{
  "code": "validation",
  "detail": "One or more request parameters are invalid",
  "instance": "/v1/feedback-records",
  "invalid_params": [
    {
      "name": "field_type",
      "reason": "must be one of: text, categorical, nps, csat, ces, rating, number, boolean, date"
    }
  ],
  "request_id": "0190a1b2-c3d4-7e5f-8a9b-0c1d2e3f4a5b",
  "status": 400,
  "title": "Bad Request",
  "type": "https://hub.formbricks.com/problems/bad-request"
}

503

Service Unavailable (embeddings are not configured)

Media typeapplication/problem+json

RFC 9457 problem details (application/problem+json). Branch on the stable code member rather than on title or type.

object

code

required

Stable, machine-readable error code; the primary value to branch on. service_unavailable indicates a feature or dependency is temporarily unavailable and the request may be retried later. tenant_write_conflict indicates the write conflicted with an in-progress tenant data purge (or vice versa) and may be retried later unchanged. All other codes are terminal until the request itself is changed.

string

Allowed values: validation bad_request unauthorized forbidden not_found conflict tenant_write_conflict method_not_allowed content_too_large service_unavailable internal_server_error

detail

A human-readable explanation specific to this occurrence of the problem.

string

details

Optional structured context for this problem, e.g. resource_type on a 404.

object

key

additional properties

any

instance

A URI reference (typically the request path) identifying the specific occurrence of the problem.

string

invalid_params

Field-level validation failures (RFC 9457 “invalid_params” extension). Present on validation errors.

Array<object>

<= 100 items

A single invalid request parameter (RFC 9457 “invalid_params” extension member).

object

name

required

Dotted path to the offending request field, e.g. ‘field_type’ or ‘items[0].field_type’.

string

reason

required

Human- and agent-readable explanation of why the value is invalid, naming allowed values or constraints where applicable so the request can be corrected without guessing.

string

request_id

required

Identifier for this request, also returned in the X-Request-ID response header; include it when reporting a problem.

string

status

required

HTTP status code

integer format: int64

title

required

A short, human-readable summary of the problem type. This value should not change between occurrences of the error.

string

type

A URI reference identifying the problem type.

string format: uri

Example

{
  "code": "validation",
  "detail": "One or more request parameters are invalid",
  "instance": "/v1/feedback-records",
  "invalid_params": [
    {
      "name": "field_type",
      "reason": "must be one of: text, categorical, nps, csat, ces, rating, number, boolean, date"
    }
  ],
  "request_id": "0190a1b2-c3d4-7e5f-8a9b-0c1d2e3f4a5b",
  "status": 400,
  "title": "Bad Request",
  "type": "https://hub.formbricks.com/problems/bad-request"
}

default

Error

Media typeapplication/problem+json

RFC 9457 problem details (application/problem+json). Branch on the stable code member rather than on title or type.

object

code

required

Stable, machine-readable error code; the primary value to branch on. service_unavailable indicates a feature or dependency is temporarily unavailable and the request may be retried later. tenant_write_conflict indicates the write conflicted with an in-progress tenant data purge (or vice versa) and may be retried later unchanged. All other codes are terminal until the request itself is changed.

string

Allowed values: validation bad_request unauthorized forbidden not_found conflict tenant_write_conflict method_not_allowed content_too_large service_unavailable internal_server_error

detail

A human-readable explanation specific to this occurrence of the problem.

string

details

Optional structured context for this problem, e.g. resource_type on a 404.

object

key

additional properties

any

instance

A URI reference (typically the request path) identifying the specific occurrence of the problem.

string

invalid_params

Field-level validation failures (RFC 9457 “invalid_params” extension). Present on validation errors.

Array<object>

<= 100 items

A single invalid request parameter (RFC 9457 “invalid_params” extension member).

object

name

required

Dotted path to the offending request field, e.g. ‘field_type’ or ‘items[0].field_type’.

string

reason

required

Human- and agent-readable explanation of why the value is invalid, naming allowed values or constraints where applicable so the request can be corrected without guessing.

string

request_id

required

Identifier for this request, also returned in the X-Request-ID response header; include it when reporting a problem.

string

status

required

HTTP status code

integer format: int64

title

required

A short, human-readable summary of the problem type. This value should not change between occurrences of the error.

string

type

A URI reference identifying the problem type.

string format: uri

Example

{
  "code": "validation",
  "detail": "One or more request parameters are invalid",
  "instance": "/v1/feedback-records",
  "invalid_params": [
    {
      "name": "field_type",
      "reason": "must be one of: text, categorical, nps, csat, ces, rating, number, boolean, date"
    }
  ],
  "request_id": "0190a1b2-c3d4-7e5f-8a9b-0c1d2e3f4a5b",
  "status": 400,
  "title": "Bad Request",
  "type": "https://hub.formbricks.com/problems/bad-request"
}