Implementation:Ollama Ollama ToEmbeddingList

Knowledge Sources	Ollama
Domains	API_Design, NLP
Last Updated	2026-02-14 00:00 GMT

Overview

Concrete tool for translating Ollama embedding responses and model lists to OpenAI format provided by the openai and middleware packages.

Description

ToEmbeddingList converts an Ollama api.EmbedResponse into an OpenAI EmbeddingList with support for both float and base64 encoding formats.

EmbeddingsMiddleware handles the full request/response cycle for the /v1/embeddings endpoint.

ListMiddleware and ToListCompletion handle the /v1/models endpoint, translating Ollama's model list into OpenAI's model list format.

Usage

Invoked automatically by middleware when requests arrive at /v1/embeddings or /v1/models.

Code Reference

Source Location

• Repository: ollama
• File: openai/openai.go (ToEmbeddingList, ToListCompletion), middleware/openai.go (EmbeddingsMiddleware, ListMiddleware)
• Lines: openai.go:L398-430 (ToEmbeddingList), openai.go:L379-397 (ToListCompletion), openai.go:L345-395 (EmbeddingsMiddleware), openai.go:L277-288 (ListMiddleware)

Signature

func ToEmbeddingList(model string, r api.EmbedResponse, encodingFormat string) EmbeddingList
func ToListCompletion(r api.ListResponse) ListCompletion

func EmbeddingsMiddleware() gin.HandlerFunc
func ListMiddleware() gin.HandlerFunc

Import

import "github.com/ollama/ollama/openai"
import "github.com/ollama/ollama/middleware"

I/O Contract

Inputs (ToEmbeddingList)

Name	Type	Required	Description
model	string	Yes	Model name
r	api.EmbedResponse	Yes	Ollama embedding response with float vectors
encodingFormat	string	Yes	"float" or "base64"

Outputs (ToEmbeddingList)

Name	Type	Description
EmbeddingList	EmbeddingList	OpenAI format with object, data (embeddings), model, usage

Usage Examples

Get Embeddings

curl http://localhost:11434/v1/embeddings \
  -H "Content-Type: application/json" \
  -d '{
    "model": "nomic-embed-text",
    "input": "The food was delicious."
  }'

List Models

curl http://localhost:11434/v1/models
# Returns: {"object":"list","data":[{"id":"llama3:latest","object":"model",...}]}

Related Pages

Implements Principle

• Principle:Ollama_Ollama_OpenAI_Embeddings_And_Listing

Requires Environment

• Environment:Ollama_Ollama_Go_Runtime