---
title: "Changes to JSON-RPC proxy"
method: POST
path: "/rpc/{chainId}/{apiKey}"
---

# Changes to JSON-RPC proxy

`POST /rpc/{chainId}/{apiKey}`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 3 of 14 revisions.

- **2026-07-06** `81fbe32d2100` — 7 breaking, 8 warning
- **2026-02-11** `f0a06d728c7b` — 1 info
- **2026-02-10** `919eb7a392aa` — 1 breaking

## Changes

- **2026-07-06** `81fbe32d2100` — 7 breaking, 8 warning
  - removed the media type `application/json` for the response with the status `400`
  - removed the media type `application/json` for the response with the status `422`
  - removed the media type `application/json` for the response with the status `424`
  - removed the media type `application/json` for the response with the status `429`
  - removed the media type `application/json` for the response with the status `504`
  - removed the media type `text/plain` for the response with the status `401`
  - removed the media type `text/plain` for the response with the status `403`
  - the optional response header `X-Batch-Id` removed for the status `400`
  - the optional response header `X-Batch-Id` removed for the status `401`
  - the optional response header `X-Batch-Id` removed for the status `403`
  - the optional response header `X-Batch-Id` removed for the status `422`
  - the optional response header `X-Batch-Id` removed for the status `424`
  - the optional response header `X-Batch-Id` removed for the status `429`
  - the optional response header `X-Batch-Id` removed for the status `500`
  - the optional response header `X-Batch-Id` removed for the status `504`
- **2026-02-11** `f0a06d728c7b` — 1 info
  - endpoint added
- **2026-02-10** `919eb7a392aa` — 1 breaking
  - api path removed without deprecation

---

[Operation](https://skmtc.dev/routemesh/apis/routemesh-api/docs/rpc/:chainId/:apiKey/post.md) · [API](https://skmtc.dev/routemesh/apis/routemesh-api.md) · [Page](https://skmtc.dev/routemesh/apis/routemesh-api/changes/rpc/:chainId/:apiKey/post)