---
title: "search msc codes meta data by zbMATH style user query"
method: GET
path: "/classification/_search"
tags: ["v1 classification"]
---

# search msc codes meta data by zbMATH style user query

`GET /classification/_search`

# Description

 
 The syntax search allows for free logical combinations of all available search fields. While similar to the structured search, this endpoint offers much more flexibility at the cost of obscure search parameters.
 # Examples 

 
 - **Geometry**: Search for the term <em>Geometry</em> in <strong>any</strong> field. Queries are <strong>case-independent</strong>.

# Search fields

 
 - **any**: MSC code or description (MSC2020 only)
- **ct**: Text from the description (MSC2020 only)
- **lv**: MSC code level (0: first two digits, 1: first three, 2: all five MSC digits; MSC2020 only)
- **cc**: MSC code (use first two, first three or all five MSC digits; MSC2020 only)

 # Operators 

 
 - **a & b**: Logical and (default)
- **a | b**: Logical or
- **!ab**: Logical not
- **abc***: Right wildcard
- **ab c**: Phrase
- **(ab c)**: Term grouping

## Query parameters

- `search_string` string, required
- `page` integer
- `results_per_page` integer

## Response `200`

Successful Response

- ZbmathdatamodelsDisplayClassificationResultSearch
  - `result` Classification[]
    - `code` string
    - `level` unknown
    - `long_title` string
    - `parent` string
    - `short_title` string
    - `zbmath_url` string
  - `status` Status
    - `execution` string, required
    - `execution_bool` boolean, required
    - `internal_code` string
    - `last_id` integer
    - `nr_total_results` integer
    - `nr_request_results` integer
    - `query_execution_time_in_seconds` number
    - `status_code` integer, required
    - `time_stamp` string

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.dev/zbmath/apis/rest-api-for-zbmath-open-v1.md) · [All operations](https://skmtc.dev/zbmath/apis/rest-api-for-zbmath-open-v1/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/zbmath/rest-api-for-zbmath-open-v1/revisions/1fcb04bb318a/schema)