| name | axonrouter-embeddings |
| description | Generate vector embeddings via AxonRouter /v1/embeddings using OpenAI / Gemini / Mistral / Voyage / Nvidia / GitHub embedding models for RAG, semantic search, similarity. Use when the user wants embeddings, vectors, RAG, semantic search, or to embed text. |
AxonRouter — Embeddings
Requires AXONROUTER_URL (and AXONROUTER_KEY if auth enabled). See https://raw.githubusercontent.com/rickicode/axonrouter/refs/heads/main/skills/axonrouter/SKILL.md for setup.
Discover
curl $AXONROUTER_URL/v1/models/embedding | jq '.data[].id'
curl "$AXONROUTER_URL/v1/models/info?id=openai/text-embedding-3-small"
Endpoint
POST $AXONROUTER_URL/v1/embeddings
| Field | Required | Notes |
|---|
model | yes | from /v1/models/embedding |
input | yes | string OR array of strings |
encoding_format | no | float (default) / base64 |
dimensions | no | OpenAI v3 only |
Examples
curl -X POST $AXONROUTER_URL/v1/embeddings \
-H "Authorization: Bearer $AXONROUTER_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"openai/text-embedding-3-small","input":["hello","world"]}'
JS:
const r = await fetch(`${process.env.AXONROUTER_URL}/v1/embeddings`, {
method: "POST",
headers: { "Authorization": `Bearer ${process.env.AXONROUTER_KEY}`, "Content-Type": "application/json" },
body: JSON.stringify({ model: "gemini/text-embedding-004", input: "RAG chunk text" }),
});
const { data } = await r.json();
console.log(data[0].embedding.length);
Python:
from openai import OpenAI
import os
client = OpenAI(base_url=f"{os.environ['AXONROUTER_URL']}/v1", api_key=os.environ["AXONROUTER_KEY"])
result = client.embeddings.create(model="openai/text-embedding-3-small", input=["hello", "world"])
print(f"Dimensions: {len(result.data[0].embedding)}")
Response shape
{ "object": "list", "model": "openai/text-embedding-3-small",
"data": [
{ "object": "embedding", "index": 0, "embedding": [0.0123, -0.045, ...] },
{ "object": "embedding", "index": 1, "embedding": [...] }
],
"usage": { "prompt_tokens": 5, "total_tokens": 5 } }
Provider quirks
| Provider | Notes |
|---|
openai, openrouter, mistral, voyage-ai, fireworks, together, nebius, github, nvidia, jina-ai | Native OpenAI shape — dimensions works only on OpenAI v3 (text-embedding-3-*) |
gemini, google_ai_studio | Server auto-converts to embedContent/batchEmbedContents — send OpenAI shape |
openai-compatible-*, custom-embedding-* | Custom baseUrl from credentials |
Batch (input as array) is faster; some providers cap batch size.
