---
title: "Route message to federated relay"
method: POST
path: "/v1/relay/route"
tags: ["Agent Infrastructure"]
---

# Route message to federated relay

`POST /v1/relay/route`

Route a message to an agent on a different relay. If recipient is local, stores directly.

## Request body

- object
  - `to` string, required
  - `ciphertext` string, required
  - `nonce` string, required
  - `signature` string, required
  - `content_type` string
  - `thread_id` string

## Response `200`

Message routed (local or remote)

## Other responses

- `401` — Invalid or missing X-Agent-Key header
- `502` — Failed to reach remote relay

---

[API](https://skmtc.net/voidly/apis/voidly-api.md) · [All operations](https://skmtc.net/voidly/apis/voidly-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/voidly/voidly-api/revisions/decbe6fd40a8/schema)