bank-api
The Bank API is a design reference project suitable to bootstrap development for a compliant and modern API.
No outside reports on file
Use this only as a learning template with sample data, never with real financial information, until you've thoroughly reviewed and hardened it for your specific compliance needs.
Based on public adoption and transparency signals as of Oct 24, 2026. Our opinion, not a code audit or security guarantee.
What it can access
- Local filesNo local folder access notedLOW
- Command executionNo shell command runner notedLOW
- Network reachConnects to outside service APINOTED
- CredentialsRequires API key or tokenREVIEW
- Package sourceGitHub (erwinkramer/bank-api)PUBLIC
Inferred from this listing’s public package details and description. Check the project’s source before installing.
Install
No npm or PyPI package is listed. Install from source: github.com/erwinkramer/bank-api ↗
Everything known
We found nothing about this project in the sources we read (last checked 2026-10-30). That does not mean it has no problems.
0 incidents · 0 advisories · 0 news articles · 0 community threads · checked 2026-10-30
Popularity grade: C (from public signals such as stars and downloads, not a code review). Graded 2026-10-24.
Sources we read: OSV, GitHub Advisory Database, CISA Known Exploited Vulnerabilities, 44 security news feeds and our incident library. Last checked 2026-10-30.
About Bank API
This is a reference project that shows how to build a modern bank API following compliance best practices. It's designed as a template or learning example rather than a production-ready tool. You can use it to understand API design patterns for financial systems.
Who it’s for
Developers learning how to design banking APIs or teams starting a new compliant financial API project. It's meant as a starting point, not as a finished product you'd deploy immediately.
Alternatives
- Plaid (production banking data aggregator with strong security)
- Open Banking APIs from regulated institutions (e.g., PSD2 in Europe, Open Banking Standard in UK)
- Stripe Connect (if building fintech rather than core banking)
- Dwolla (for payments and ACH-focused integrations)
Setup
Check these steps against the project’s own instructions before running anything.
Follow the project's README at https://github.com/erwinkramer/bank-api (opens external site) for installation and setup instructions specific to your environment.
Why this grade
Signal-based grade (3/7 points): well starred on GitHub, public source code. This reflects adoption and transparency, not a code review.
Popularity and upkeep
- GitHub stars
- 844
- Listing last refreshed
- 2026-10-29
These are public popularity signals, not a maintenance check. Look at the repository’s commit history and open issues.
Risks to watch for
- Financial data access: Any MCP connector handling bank APIs can potentially access account information, transaction history, or balance data depending on how you configure it
- Hardcoded credentials: Reference projects sometimes include example API keys or tokens in code that developers forget to remove before deployment
- Misleading compliance claims: The project describes itself as 'compliant,' but you should verify it meets your specific regulatory requirements (PCI-DSS, SOX, etc.) before using it with real data
- Incomplete security: As a reference/bootstrap project, it may lack production-grade security features like rate limiting, encryption, or audit logging that real banking needs
- Prompt injection in data: If you connect this to Claude, attackers could hide instructions inside transaction descriptions or account names that trick the AI into leaking data
How to lower the risk
Least-privilege permissions
- Never expose real bank credentials to this connector; use test/sandbox API keys only
- Restrict the AI's ability to modify accounts or process transactions
Network isolation
- Keep this connector on a separate network segment from production banking systems
- Use a firewall to block unexpected outbound connections
Monitoring
- Log all API calls and data accessed through this connector
- Set up alerts for unusual activity like accessing multiple accounts at once
Red flags to watch for
- Requests to change API endpoints or add new accounts without approval
- Unexpected large data transfers or exports of transaction lists
- Instructions hidden in account names, descriptions, or transaction data
Questions
How do I install Bank API?
Bank API does not publish a standalone npm or PyPI package. Clone or follow the setup instructions in its source repository at github.com/erwinkramer/bank-api.
Are there security reports about Bank API?
No reports found for this package in our research (last checked 2026-10-30). Bank API currently holds Grade C (Moderate risk signals) based on public adoption and transparency signals. Key risk areas to watch include financial data access, hardcoded credentials, misleading compliance claims.
Is Bank API actively maintained?
Bank API has 844 GitHub stars. Our directory data was last refreshed on 2026-10-29. Check recent commit activity, release tags, and open issues at github.com/erwinkramer/bank-api before pinning it in production.
What are alternatives to Bank API?
Notable alternatives to Bank API include Plaid, Open Banking APIs, Stripe Connect, Dwolla. You can also compare Bank API side by side with other MCP servers in the Related tools section on this page.
README badge and team notes
Maintain or use Bank API? Show its live grade in your GitHub README, docs site, or run a check from the terminal before you install.
GitHub README Markdown:
[](https://agentarmorhq.com/skills/erwinkramer-bank-api)HTML embed:
<a href="https://agentarmorhq.com/skills/erwinkramer-bank-api"><img src="https://agentarmorhq.com/api/badge/erwinkramer-bank-api" alt="AgentArmorHQ Risk Grade for Bank API" height="20" /></a>Terminal check:
curl -fsSL https://agentarmorhq.com/api/cli | node --input-type=module - check "erwinkramer-bank-api"Share with your security lead
Need sign-off to use bank-api? Copy this note for Slack, a ticket or a pull request.
### AgentArmorHQ Security Review Memo: bank-api
- **Listing URL:** https://agentarmorhq.com/skills/erwinkramer-bank-api
- **Type:** App connector
- **Risk Grade:** Grade C (Moderate risk signals)
- **Outside Security Advisories on File:** 0
- **Public Adoption:** 844 GitHub stars
#### Permission & Blast-Radius Signals
- **Local files:** No local folder access noted
- **Command execution:** No shell command runner noted
- **Network reach:** Connects to outside service API
- **Credentials:** Requires API key or token
- **Package source:** GitHub (erwinkramer/bank-api)
#### Recommended Hardened Setup
- **Source Repo:** https://github.com/erwinkramer/bank-api
- **Controls:** Pin an exact version in `.mcp.json`, scope access to a single workspace folder, and use a least-privilege read-only token where supported.
_Based on public adoption and transparency signals as of Oct 24, 2026. Our opinion, not a code audit or security guarantee._Key facts
- Type
- App connector
- Publisher
- erwinkramer
- Source code
- github.com/erwinkramer/bank-api
- Est. context load
- ~550 tokens / turn (~3 tool schemas, 0.27% of 200k context)
- Popularity
- 844 GitHub stars
- Last updated
- 2026-10-29
- Last graded
- 2026-10-24
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