How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

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 17 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 2 operations across 2 paths, and defines 35 schemas. It is described by OpenAPI 3.2.0, at version 1.0.0.

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

2 operations 2 paths 35 schemas 2 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0.0
Base URL
https://api.cohere.com
Authentication
HTTP Bearer
Resource Areas
1

Authentication & Security 1

Cohere Rerank API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (bearerAuth).

Paths & Operations 2

Across 2 paths, the API surfaces 2 operations — 2 POST. Each is listed below with its method, path, parameters, and response codes.

Rerank 2
POST
/v2/rerank
Rerank API (v2)
v2_rerank 1 param body → 200400401403404422429498
POST
/v1/rerank
Rerank API (v1)
rerank 1 param body → 200400401403404422429498

Schemas 35

The contract defines 35 schemas that model the data the API accepts and returns. The most detailed are ApiMetaBilledUnits (7 properties), ApiMeta (5 properties), V1RerankPostResponsesContentApplicationJsonSchemaResultsItems (3 properties), ApiMetaApiVersion (3 properties). Each schema is shown below with its type and property counts.

rerank_Response_200
object
3 properties 1 required
RerankRequestInvalidTokenError
object
2 properties
RerankRequestUnauthorizedError
object
2 properties
Rerankv2RequestInvalidTokenError
object
2 properties
Rerankv2RequestNotImplementedError
object
2 properties
v2_rerank_Response_200
object
3 properties 1 required
RerankRequestBadRequestError
object
2 properties
Rerankv2RequestBadRequestError
object
2 properties
ApiMeta
object
5 properties
RerankRequestForbiddenError
object
2 properties
V1RerankPostResponsesContentApplicationJsonSchemaResultsItems
object
3 properties 2 required
Rerankv2RequestForbiddenError
object
2 properties
Rerankv2RequestUnprocessableEntityError
object
2 properties
RerankRequestInternalServerError
object
2 properties
Rerankv2RequestInternalServerError
object
2 properties
V2RerankPostResponsesContentApplicationJsonSchemaResultsItems
object
2 properties 2 required
Rerankv2RequestNotFoundError
object
2 properties
RerankRequestNotImplementedError
object
2 properties
RerankRequestNotFoundError
object
2 properties
Rerankv2RequestTooManyRequestsError
object
2 properties
Rerankv2RequestClientClosedRequestError
object
2 properties
ApiMetaApiVersion
object
3 properties 1 required
RerankResponseResultsItemDocument
object
If returndocuments is set as false this will return none, if true it will return the documents passed in
1 property 1 required
ApiMetaTokens
object
2 properties
Rerankv2RequestServiceUnavailableError
object
2 properties
RerankRequestClientClosedRequestError
object
2 properties
RerankDocument
object
RerankRequestTooManyRequestsError
object
2 properties
Rerankv2RequestUnauthorizedError
object
2 properties
RerankRequestUnprocessableEntityError
object
2 properties
Rerankv2RequestGatewayTimeoutError
object
2 properties
RerankRequestServiceUnavailableError
object
2 properties
ApiMetaBilledUnits
object
7 properties
RerankRequestGatewayTimeoutError
object
2 properties
V1RerankPostRequestBodyContentApplicationJsonSchemaDocumentsItems

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 Datasets API
Cohere Models API
Cohere Tokenize API
Cohere Detokenize API
Cohere Batches API
Cohere Check Api Key API
Cohere Connectors API
Cohere Embed Jobs API
Cohere /finetuning 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.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.