---
title: "Changes to Call the read-only MCP JSON-RPC endpoint"
method: POST
path: "/mcp"
---

# Changes to Call the read-only MCP JSON-RPC endpoint

`POST /mcp`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 2 of 5 revisions.

- **2026-11-04** `2df3ba790365`: 1 breaking, 10 info
- **2026-09-10** `2ed34c86a0a0`: 1 breaking, 1 info

## Changes

- **2026-11-04** `2df3ba790365`: 1 breaking, 10 info
  - added required request body
  - added the new optional `header` request parameter `MCP-Protocol-Version`
  - added the new optional `header` request parameter `Mcp-Method`
  - added the new optional `header` request parameter `Mcp-Name`
  - added the media type `application/json` for the response with the status `200`
  - added the non-success response with the status `400`
  - added the non-success response with the status `403`
  - added the non-success response with the status `404`
  - added the non-success response with the status `413`
  - added the non-success response with the status `415`
  - added the non-success response with the status `500`
- **2026-09-10** `2ed34c86a0a0`: 1 breaking, 1 info
  - removed the success response with the status `204`
  - added the success response with the status `202`

---

[Operation](https://skmtc.dev/thorchain/apis/thorchain-website-discovery/docs/mcp/post.md) - [API](https://skmtc.dev/thorchain/apis/thorchain-website-discovery.md) - [Page](https://skmtc.dev/thorchain/apis/thorchain-website-discovery/changes/mcp/post)