What is ibanforge CLAUDE.md?

A repository instruction file for IBANforge, a service that validates international bank account numbers and looks up BIC or SWIFT bank codes. It documents the project’s architecture, technologies, data, payment system, and deployment conventions.

Use it when modifying IBAN validation, BIC lookup, bank-data processing, MCP access for AI agents, x402 micropayments, compliance indicators, SQLite data, or Docker-to-Railway deployment.

It gives coding agents the context needed to work consistently in this codebase, including its public-repository warning and technical constraints. This reduces the risk of changes that conflict with the project’s stack or structure.

ibanforge CLAUDE.md — Instructions file for coding agents by cammac-creator: A repository instruction file for IBANforge, a service that…

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods

npx agentmods add instructions/cammac-creator/ibanforge/claude-md

Clone the repo

git clone --depth 1 https://github.com/cammac-creator/ibanforge

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/cammac-creator/ibanforge/claude-md.svg)](https://agentmods.dev/instructions/cammac-creator/ibanforge/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/cammac-creator/ibanforge/claude-md"><img src="https://agentmods.dev/badge/instructions/cammac-creator/ibanforge/claude-md.svg" alt="Measured on agentmods" height="20"></a>

Per session 2,835 This file is loaded in full into every session.

When invoked 2,835 The same file — it is already loaded in full.

Security scan B 1 finding. Scan, not verified.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.02835	$0.02835
Opus 5	$0.01418	$0.01418
Sonnet 5	$0.00567	$0.00567
Haiku 4.5	$0.00283	$0.00283

Measured 5d ago against content hash 2403aba21822, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade B, and why

ibanforge CLAUDE.md scanned grade B with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Reads agent configuration directoriesmediumAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

`find .claude/worktrees/<nom> -type f -not -path "*/node_modules/*" -newermt "-1 day"`.

CLAUDE.md · 213 lines

How it starts

The opening of the file, as written. The whole thing — 213 lines — stays where its author put it; the contents beside it link to each section on GitHub.

IBANforge

API de validation IBAN et lookup BIC/SWIFT avec micropaiements x402, interface MCP pour agents AI, données SEPA/VoP, classification émetteur (vIBAN detection), et indicateurs de risque compliance.

Stack

Runtime : Node.js 22+ / TypeScript (20 est en fin de vie depuis le 2026-04-30 ; 24 est impossible tant que better-sqlite3 11 ne publie pas de binaire linux-x64 pour l'ABI 137)
Framework : Hono
Database : SQLite (better-sqlite3) — data/bic.sqlite (121k+ BIC entries from GLEIF + SwiftCodes/MIT + SIX + EBA Step2 SCT + Bundesbank + NBP, plus 1,100+ Swiss clearing entries SIX — counts drift at each monthly refresh, read them live via getEntryCount() / getChClearingCount()), data/stats.sqlite
Payments : x402/hono (USDC micropayments)
AI Agents : MCP SDK (Model Context Protocol)
Deploy : Docker → Railway
Domain : ibanforge.com

Architecture

src/
  index.ts              # Entry point — Hono app + server
  types.ts              # Shared TypeScript types
  routes/
    iban-validate.ts    # POST /v1/iban/validate (single IBAN)
    iban-batch.ts       # POST /v1/iban/batch (up to 100)
    bic-lookup.ts       # GET /v1/bic/:code (BIC/SWIFT lookup)
    ch-clearing.ts      # GET /v1/ch/clearing/:iid (Swiss BC-Nummer lookup)
    health.ts           # GET /health
    stats.ts            # GET /stats
    landing.ts          # GET / (HTML landing page)
    demo.ts             # GET /v1/demo (free examples)
  lib/
    iban.ts             # IBAN validation logic (mod97, BBAN parsing)
    enrich.ts           # Post-validation enrichment (BIC, issuer, SEPA, risk, CH clearing)
    ch-clearing.ts      # Swiss BC-Nummer lookup, institution type detection
    issuers.ts          # EMI/neobank classification (85 known BIC8 mappings — the live count is served in /llms.txt)
    bic-validator.ts    # BIC format validation (ISO 9362)
    bic-lookup.ts       # BIC database queries
    countries.ts        # ISO country data (IBAN lengths, BBAN structures, SEPA zones, VoP, country risk)
    stats.ts            # Stats recording and queries
    db.ts               # Database connections
  middleware/
    x402.ts             # x402 payment middleware
  mcp/
    server.ts           # MCP server (validate_iban, batch_validate, lookup_bic, lookup_ch_clearing)
  db/
    schema.sql          # SQLite schema
    seed.ts             # GLEIF BIC-LEI data seeder
scripts/
  enrich-countries.ts   # Backfill country_name on existing data
  seed-bc-nummer.ts     # Download + seed SIX BankMaster CSV into bic.sqlite
data/
  bic.sqlite            # Pre-built BIC + Swiss clearing database (tracked in git)
  stats.sqlite          # API usage stats

Read the full file on GitHub · 213 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

5d ago First seen · 213 lines · 2,835 tokens per session scan B 2403aba21822

Subscribe to this mod's changes

ibanforge CLAUDE.md is an instructions file published in the GitHub repository cammac-creator/ibanforge (3 stars, last pushed today), licensed MIT. It adds 2,835 tokens to every session, about $0.0142 per session on Opus 5. A static security scan graded it B with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

api banking bic fintech iban mcp-server

ibanforge CLAUDE.md

Getting it into your agent

Wrote this? Show the measurements

What it costs to keep this loaded

Grade B, and why

Reads agent configuration directoriesmediumAgent snooping

How it starts

IBANforge

Stack

Architecture

What this file has done since we first saw it

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