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Cohere Rerank API

The Cohere Rerank API takes a query and a list of text documents and returns them ordered by relevance with assigned relevance scores. It is commonly used as a second-stage ranker in retrieval-augmented generation pipelines to improve the quality of search results before passing them to a language model. The API supports multilingual reranking and can significantly improve the precision of search and retrieval systems.

Cohere Rerank API is one of 9 APIs that Cohere publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Artificial Intelligence, Information Retrieval, Relevance, Reranking, and Search. The published artifact set on APIs.io includes API documentation and an OpenAPI specification.

This API exposes 1 operation across 1 path, and defines 4 schemas. It is described by OpenAPI 3.2.0, at version 2.0.

Requests are made against a single base URL, https://api.cohere.com.

1 operations 1 paths 4 schemas 1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
2.0
Base URL
https://api.cohere.com
Authentication
HTTP Bearer
Terms of Service
Resource Areas
1

Authentication & Security 1

Cohere Rerank API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (bearerAuth). By default, every request must be authenticated.

  • bearerAuth — Bearer authentication using a Cohere API key. Pass the API key in the Authorization header as Bearer .

Paths & Operations 1

Across 1 path, the API surfaces 1 operation — 1 POST. Each is listed below with its method, path, parameters, and response codes.

Rerank 1

Endpoints for reranking documents by relevance to a query using Cohere reranking models.

POST
/v2/rerank
Rerank documents by relevance
rerank body → 200400401429

Schemas 4

The contract defines 4 schemas that model the data the API accepts and returns. The most detailed are RerankRequest (5 properties), RerankResult (3 properties), RerankResponse (3 properties), Error (1 property). Each schema is shown below with its type and property counts.

Error
object
1 property
RerankResponse
object
3 properties
RerankRequest
object
5 properties 3 required
RerankResult
object
3 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

cohere-rerank-api-openapi.yml Raw ↑

Other APIs Cohere publishes across the network.

Cohere Chat API
Cohere Embed API
Cohere Classify API
Cohere Embed Jobs API
Cohere Datasets API
Cohere Models API
Cohere Tokenize API
Cohere Detokenize API
Where this information came from

This is an independent, third-party profile of Cohere Rerank API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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