---
title: "Relay the Arc mint"
method: POST
path: "/bridge2/relay"
tags: ["Bridge"]
---

# Relay the Arc mint

`POST /bridge2/relay`

## Request

- Base URL: `https://api.getchord.xyz/v1`
- URL: `https://api.getchord.xyz/v1/bridge2/relay`
- Auth: none declared

Once attested, Chord's relayer submits `receiveMessage` on Arc so the recipient needs no gas there. `409 NOT_ATTESTED` until Iris completes; `429 DAILY_CAP`; `503 RELAYER_OFF`.

## Request body

- object
  - `srcDomain` integer, required
  - `tx` string, required: Transaction hash.

## Response `200`

- object
  - `ok` true
  - `txHash` string: Transaction hash.

## Other responses

- `400`: Invalid parameters — `error` names the check that failed (`INVALID_PARAMS`, `BAD_ADDRESS`, `BAD_LIMIT`, `BAD_HOURS`, …).
- `409`: `NOT_ATTESTED` or `IN_FLIGHT`.
- `429`: Over the per-minute limit (`RATE_LIMIT_EXCEEDED`). Read `X-RateLimit-Reset` and back off.
- `502`: The routing engine or an upstream did not answer (`ENGINE_ERROR`, `ROUTE_ERROR`).
- `503`: The lane behind this endpoint is not ready or not enabled here (`NOT_READY`, `CHAIN_NOT_ENABLED`, `NOT_ENABLED`, `*_UNAVAILABLE`). Retry later; do not treat it as an empty answer.

---

[API](https://skmtc.dev/getchord/apis/chord-api.md) · [All operations](https://skmtc.dev/getchord/apis/chord-api/llms.txt) · [OpenAPI document](https://skmtc.dev/getchord/apis/chord-api/revisions/d3bc4640fea0?raw)