iso20022-mcp: The Unified MCP Gateway for ISO 20022

One Model Context Protocol server, one small set of meta-tools — search, list_families, describe, validate, generate, parse — that route across every ISO 20022 message family (pain · pacs · camt · acmt). Install one thing, discover the whole suite: an agent sees a handful of verbs instead of the 60+ tools spread across five individual servers.

Latest release: v0.0.3 — 7 routing meta-tools over stdio, light core (only mcp), backing family servers as optional extras, for Python 3.10+. The front door to the ISO 20022 MCP Suite.

Why a gateway

The suite has a dedicated, best-in-class server per message family. That depth is the point — but an agent shouldn't have to know which of five servers and which of sixty tools it needs before it can act. iso20022-mcp is the thin routing layer on top: ask it in plain terms ("I need to reconcile a statement", "generate a credit transfer"), and it points you at — or executes against — the right family. Small tool surface, whole-suite reach.

The ISO 20022 MCP Suite

iso20022-mcp is the generic message toolkit of four coordinated, vendor-neutral MCP servers that together cover the ISO 20022 bank-statement workflow — statement depth, whole-catalogue routing, reconciliation, and multi-format ingestion. Dependency ranges are kept aligned across the suite, so the servers co-install cleanly in a single Python environment: start with one, add the rest as your workflow grows.

In one line each: camt053-mcp is the bank-statement flagship (deepest camt.05x surface, stdio + authenticated streamable HTTP); iso20022-mcp is the generic message toolkit (a handful of verbs over the whole catalogue); reconcile-mcp is the reconciliation workflow (did the money we expected actually arrive?); and bankstatementparser-mcp is the ingestion layer (many formats in, one transaction shape out).

The gateway also routes to the per-family servers — pain001-mcp, pacs008-mcp, acmt001-mcp, and camt-exceptions — installed as extras (see Routing).

Install

The core is light. Add the families you need as extras (or [all]):

pip install "iso20022-mcp[all]"       # every family
pip install "iso20022-mcp[pacs,camt]" # just interbank + statements
pip install iso20022-mcp              # core only; families report as not installed
# or run without installing:
uvx --from "iso20022-mcp[all]" iso20022-mcp

MCP client config (e.g. Claude Desktop):

{
  "mcpServers": {
    "iso20022": {
      "command": "iso20022-mcp"
    }
  }
}

The meta-tools

Operations are capability-aware: generate on a camt.053 statement (an inbound format) returns a clear, explanatory error rather than failing obscurely, and every "package not installed" case tells you exactly what to pip install.

Routing

generate("camt.056.001.12", …) routes to camt-exceptions. The gateway also surfaces the specialized servers — reconcile-mcp and ap2-iso20022 — via search and list_servers for discovery (they're invoked through their own tools).

The gateway imports each backing server lazily and optionally — the core depends only on mcp, and a family's server is loaded on first use. Message types are matched on their prefix (pacs.008.001.08 → pacs).

Example

search(query="reconciliation")
  → [{ "message_type": "camt.053", "family": "camt", "package": "camt053-mcp" }]

describe(message_type="pacs.008")           # required fields + input schema
validate(message_type="pacs.008", records=[…])
generate(message_type="pain.001", records=[…])   # → validated XML
parse(message_type="camt.053", xml="<Document>…")

For the dedicated reconciliation engine that matches camt.053 statements against expected pain.001 payments, see reconcile-mcp.

Development

git clone https://github.com/sebastienrousseau/iso20022-mcp
cd iso20022-mcp
python -m venv .venv && . .venv/bin/activate
pip install -e . && pip install pytest pytest-cov ruff black mypy
pytest                      # 100% branch coverage gate (backends faked)
ruff check iso20022_mcp tests && black --check iso20022_mcp tests && mypy iso20022_mcp

Licence

Licensed under the Apache License, Version 2.0.

mcp-name: io.github.sebastienrousseau/iso20022-mcp