AINumbers.co ISO20022 API
The ISO20022 API from AINumbers.co — 3 operation(s) for iso20022.
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OpenAPI Specification
openapi: 3.2.0
info:
title: AINumbers.co Fintech Intelligence Suite ISO20022 API
version: 1.0.0
description: '**1255 fintech intelligence tools** covering ISO 20022, A2A payments, CFPB §1033, EU AI Act, DORA, MiCA, AML/KYC, BaaS, DLT/tokenization, ESG/climate finance, agentic payments (AP2, ACP, x402, Visa TAP, Mastercard Agent Pay), PQC migration, sanctions screening, and OpenChainGraph v0.4 computation chains.
## Transport
> **The live transport is MCP JSON-RPC 2.0 at `https://mcp.ainumbers.co/mcp` — not REST.**
>
> This OpenAPI file is a **descriptive data-room artifact** — a machine-readable index of all tools and their input/output schemas. The REST paths (`POST /v1/tools/{name}`) described here are a projection; they become functional only if the optional REST shim (Area 2 Path B) is deployed.
>
> To call tools today, connect via the official MCP client SDKs. TypeScript: `@modelcontextprotocol/sdk`. Python: `mcp`.
## Architecture
All tools run **entirely client-side** (browser JavaScript). Zero PII. Zero server calls after page load. Deterministic, reproducible outputs. Licensed CC BY 4.0.
OpenChainGraph v0.4 compute-binding nodes additionally run **server-side on the MCP Worker** and emit verifiable artifacts with `execution_hash` (WebCrypto SHA-256 over RFC 8785 canonical JSON).'
contact:
name: Post Oak Labs
url: https://postoaklabs.com
email: tim@postoaklabs.com
license:
name: CC BY 4.0
url: https://creativecommons.org/licenses/by/4.0/
servers:
- url: https://ainumbers.co
description: Static browser-based tool host (DreamHost). Tools run client-side — no REST gateway is active on this origin. See x-mcp for the live MCP endpoint.
tags:
- name: ISO20022
paths:
/v1/tools/validate_iso20022_message:
post:
operationId: validate_iso20022_message
summary: ISO 20022 Message Validator + Field Explorer
description: 'Validate ISO 20022 XML messages (pacs.008, pain.001, camt.053) against embedded schema rules, parse every field with business context, and explore 20+ message types. Client-side only. Zero PII.
**Tool URL:** https://ainumbers.co/tools/248-iso20022-validator.html
**AP2/Policy Mandate export:** yes'
tags:
- ISO20022
requestBody:
required: true
content:
application/json:
schema:
type: object
required:
- xml_content
properties:
xml_content:
type: string
message_type:
type: string
ruleset:
type: string
enum:
- cbpr+
- base
- fedwire
- sepa
responses:
'200':
description: Successful tool execution result
content:
application/json:
schema:
type: object
properties:
valid:
type: boolean
message_type:
type: string
field_map:
type: object
description: Parsed fields with business context labels
errors:
type: array
warnings:
type: array
x-mcp-tool-name: validate_iso20022_message
x-tool-url: https://ainumbers.co/tools/248-iso20022-validator.html
x-source: manifest
x-ap2-export: true
/v1/tools/decode_iso20022_rejection_codes:
post:
operationId: decode_iso20022_rejection_codes
summary: ISO 20022 Status & Rejection Decoder
description: 'Decode ISO 20022 pacs.002/008/009 TxSts and StsRsnInf rejection codes to plain English with severity classification, remediation guidance, and CBPR+ structured address risk flags. Batch mode for up to 20 messages.
**Tool URL:** https://ainumbers.co/tools/319-iso20022-status-rejection-decoder.html
**AP2/Policy Mandate export:** yes'
tags:
- ISO20022
requestBody:
required: true
content:
application/json:
schema:
type: object
required:
- rejection_codes
properties:
rejection_codes:
type: array
maxItems: 20
items:
type: object
message_type:
type: string
enum:
- pacs.002
- pacs.008
- pacs.009
responses:
'200':
description: Successful tool execution result
content:
application/json:
schema:
type: object
properties:
decoded:
type: array
items:
type: object
properties:
code:
type: string
plain_english:
type: string
severity:
type: string
remediation:
type: string
cbpr_risk:
type: string
summary:
type: object
export_md:
type: string
x-mcp-tool-name: decode_iso20022_rejection_codes
x-tool-url: https://ainumbers.co/tools/319-iso20022-status-rejection-decoder.html
x-source: manifest
x-ap2-export: true
/v1/tools/compose_iso20022_onchain_correspondence_receipt:
post:
operationId: compose_iso20022_onchain_correspondence_receipt
summary: ISO 20022 On-Chain Correspondence Receipt
description: 'Compose a receipt that records the asserted correspondence between an ISO 20022 payment message (pacs.008 / pain.001 / camt.053 / camt.054) and its on-chain settlement leg, with an optional external-rail reference attachment (SWIFT gpi UETR, Fedwire IMAD/OMAD, CHIPS UID). Asserted by mapping, not proven.
**Tool URL:** https://ainumbers.co/tools/563-iso20022-onchain-correspondence-receipt.html
**AP2/Policy Mandate export:** yes'
tags:
- ISO20022
requestBody:
required: true
content:
application/json:
schema:
type: object
properties:
message_type:
type: string
tx_hash:
type: string
mapping_method:
type: string
required:
- message_type
- tx_hash
- mapping_method
responses:
'200':
description: Successful tool execution result
content:
application/json:
schema:
type: object
description: Tool execution result payload
x-mcp-tool-name: compose_iso20022_onchain_correspondence_receipt
x-tool-url: https://ainumbers.co/tools/563-iso20022-onchain-correspondence-receipt.html
x-source: manifest
x-ap2-export: true
x-mcp:
transport: MCP JSON-RPC 2.0 (streamable HTTP)
endpoint: https://mcp.ainumbers.co/mcp
protocol_version: '2025-11-25'
authentication: none
registry: co.ainumbers/tools (official MCP registry)
note: Connect any MCP-compatible client (Claude, ChatGPT, custom agent) directly to this endpoint. The REST paths in this file are descriptive only — they do not exist on the live server unless the REST shim is deployed.