Every issuer, one gateway
Pluggable verifiers for the major agent credential schemes, so you aren't betting on a single network or protocol.
Agent access gateway · For credit unions & community banks
DEFS is an agent access gateway for credit unions and community banks. It sits between AI agents and your online banking, verifies every agent's credentials, applies the limits your members and your institution set, and blocks rogue agents before a dollar moves.
AI agents are starting to pay bills, move money and file disputes for your members. The largest banks are blocking them while they build their own controls. You shouldn't have to choose between saying no to your members and saying yes to every bot.
01 · The checkpoint
DEFS verifies credentials agents already carry: Visa Trusted Agent Protocol, Mastercard Agent Pay, Google AP2 mandates, Web Bot Auth signatures. We never issue our own.
The request has to fit both what the member allowed and what your institution's policy permits.
Allow, step up for confirmation, or deny. Every decision is written to a tamper-evident audit log.
02 · Your fraud team, in control
Live activity, step-up approvals, per-agent limits and blocks, an institution-wide kill switch, and a hash-chained audit trail.
03 · Network effect
A shared rogue-agent blocklist, built with governance and appeal paths in mind.
04 · For your members
A "My connected agents" page inside your online banking shows each agent, what it's allowed to do, and a revoke button that takes effect immediately.
Try it: revoke an agent →
05 · What you get
Pluggable verifiers for the major agent credential schemes, so you aren't betting on a single network or protocol.
Per-agent, per-action limits for bill pay, internal and external transfers, ACH and disputes.
Borderline requests go to confirmation instead of being refused outright.
An append-only, hash-chained record of every request, decision and staff action.
Cut off all agent access at your institution instantly, then restore it just as fast.
Designed to sit in front of existing online banking. We're looking for pilot partners to shape the integrations.
FAQ
DEFS is an agent access gateway for credit unions and community banks. It sits between AI agents and a financial institution's online banking, verifies each agent's credentials, enforces the limits set by both the member and the institution, and allows, steps up or denies each request before money moves.
An AI agent access gateway is a checkpoint between automated AI agents and a bank's or credit union's systems. Instead of blocking all agents or letting them use a member's password, the gateway identifies each agent from its cryptographic credentials, checks what it is allowed to do, and records every decision.
With DEFS, members choose what each connected agent may do (for example, bill pay up to $500 and no external transfers), and the institution sets policy caps on top. Every request must fit both. The fraud team can limit, block or revoke any agent, or use a kill switch to stop all agent access at once.
DEFS is designed to accept credentials agents already carry. Its prototype verifies HTTP message signatures used by Cloudflare Web Bot Auth and Visa Trusted Agent Protocol (Ed25519, RFC 9421) and Google AP2 mandates in SD-JWT form. Mastercard Agent Pay, Prove and World ID are planned integrations and are stubbed in the prototype. DEFS never issues its own agent passport.
Each request is checked against member and institution scopes. Out-of-scope requests are denied, borderline ones are sent for step-up confirmation, and an agent that repeatedly exceeds its limits is blocked automatically. Blocks can be shared on a rogue-agent blocklist so other participating institutions see them.
It is a network-wide list of agents that a participating institution has blocked. When one institution blocks a rogue agent, others using DEFS see that block right away. It is being designed with governance and appeal paths.
No. Card networks already offer issuer-side tools for card transactions. DEFS focuses on non-card money movement that runs through online banking: bill pay, internal and external transfers, ACH and disputes.
Credit unions and community banks, primarily those with roughly $500 million to $5 billion in assets, that want to serve members' AI agents without building their own agent controls.
Not yet. DEFS is an early-stage product with a working prototype running on test data, and it is looking for a small number of pilot partners.
No. DEFS is early stage and has not completed third-party audits or certifications. It will work through each pilot partner's vendor due-diligence process.
Pilot waitlist
For credit union and community bank leaders in digital banking, fraud, risk and IT, at institutions with $500M–$5B in assets.