---
title: "E2E Invoke"
method: POST
path: "/e2e/invoke"
tags: ["E2E Encryption"]
---

# E2E Invoke

`POST /e2e/invoke`

Relay an E2E encrypted invocation to a specific instance.

## Headers

- `X-Chute-Id` string, required
- `X-Instance-Id` string, required
- `X-E2E-Nonce` string, required
- `X-E2E-Stream` string
- `X-E2E-Path` string
- `X-E2EE-Usage-Passthrough` string
- `X-Chutes-Hotkey` string, nullable
- `X-Chutes-Signature` string, nullable
- `X-Chutes-Nonce` string, nullable
- `Authorization` string, nullable

## Response `200`

Successful Response

- unknown

## Other responses

- `422` — Validation Error

## Changes

- **2026-08-26** `8d909638091e` — 1 info
  - endpoint added
- **2026-08-22** `05d9af05d87e` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/chutes/apis/fastapi/changes/e2e/invoke/post.md)

---

[API](https://skmtc.dev/chutes/apis/fastapi.md) · [All operations](https://skmtc.dev/chutes/apis/fastapi/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/chutes/fastapi/revisions/7be1aa2fe1a0/schema)