---
title: "SWIFT MT→MX Field Migration Decoder"
method: POST
path: "/v1/tools/decode_swift_mt_mx_field_migration"
tags: ["swift", "iso20022", "migration", "mt103", "mt202", "pacs008", "field", "mapping", "truncation", "hvps"]
---

# SWIFT MT→MX Field Migration Decoder

`POST /v1/tools/decode_swift_mt_mx_field_migration`

## Request

- Base URL: `https://ainumbers.co`
- URL: `https://ainumbers.co/v1/tools/decode_swift_mt_mx_field_migration`
- Auth: none declared

Maps legacy SWIFT MT fields (MT103/MT202/MT940/MT950) to ISO 20022 MX equivalents with truncation alerts and coexistence period guidance.

**Tool URL:** https://ainumbers.co/tools/402-swift-mt-mx-field-decoder.html

## Request body

- object

## Response `200`

Successful tool execution result

- object
  - `result` object
  - `summary` string

---

[API](https://skmtc.dev/ainumbers/apis/ainumbers-co-fintech-intelligence-suite.md) · [All operations](https://skmtc.dev/ainumbers/apis/ainumbers-co-fintech-intelligence-suite/llms.txt) · [OpenAPI document](https://skmtc.dev/ainumbers/apis/ainumbers-co-fintech-intelligence-suite/revisions/b462e4f5bb28?raw)