Visa, the business payments platform BILL and accounts-receivable firm Billtrust say an AI agent is now paying real business invoices through supplier portals in a live pilot. In a joint release on 20 October 2026, the three companies said they “have launched the first live pilot to enable trusted AI agents to initiate and complete approved buyer invoice payments end-to-end through supplier portals”. The “first” is their own claim.
The pilot targets a dull but stubborn job: an employee logging into a supplier’s website to key in card details for an invoice that has already been approved. The companies stress that the agent does not decide anything. “The agent only executes eligible payments that have already been approved by the buyer,” the release says.
In brief
- Visa, BILL and Billtrust say a live pilot lets an authenticated AI agent pay buyer-approved invoices through supplier portals.
- It tackles one of the last manual steps in business payments, using Visa’s Trusted Agent Protocol to let the agent past bot checks without shared logins.
- The companies gave no transaction volumes or participant numbers, and it remains a pilot.
How does the payment flow work?
According to the release, the “BILL Payment Agent — registered using Visa’s Trusted Agent Protocol and Agentic Directory — uses tokenized payment credentials and controls aligned with the buyer’s approved payment instructions” to pay suppliers on behalf of BILL’s customers. Tokenised credentials stand in for the real card number.
On the supplier side, Billtrust uses the protocol “to recognize, authenticate, and grant access to the authorized agent”. That step replaces a familiar obstacle for bots. “This agent authentication can satisfy the site protections historically provided by CAPTCHA and other bot blocking mechanisms, without requiring an additional agent login,” the companies said.
Buyers also do not have to hand over their supplier-portal passwords. “The pilot is designed to eliminate the need to share supplier-portal logins,” the release’s FAQ says.
| Step | Who | What happens |
|---|---|---|
| 1 | Buyer | Approves the invoice |
| 2 | BILL Payment Agent | Pays with tokenised card details |
| 3 | Billtrust | Authenticates the agent |
| 4 | Supplier | Receives the portal payment |
What is Visa’s Trusted Agent Protocol?
Visa introduced the protocol in October 2025, saying it was “developed in collaboration with Cloudflare”. It uses “agent-specific cryptographic signatures” so that websites can recognise approved agents and tell them apart “from malicious automation and rogue bots”, Visa said at the time.
The 2025 launch was framed around shoppers and merchants. Visa said then that the protocol was built on “the foundational HTTP Message Signature standard”, so it can work with existing web infrastructure. This pilot applies the same idea to business-to-business payments, where the “merchant” is a supplier’s payment portal.
It sits within Visa Intelligent Commerce, Visa’s set of tools for payments made by AI agents. In the pilot, Visa says it provides “agent recognition, tokenized payment credentials and payment controls”.
Who gains, according to the companies?
According to the release’s FAQ, buyer platforms such as BILL could extend card payments to suppliers that “historically supported automated payments primarily through ACH or check”. Supplier platforms such as Billtrust could offer faster portal payments and help suppliers improve days sales outstanding, the time it takes to collect cash.
“Nearly 500,000 businesses trust BILL to move, manage and maximize their money,” said Archana Prasad, BILL’s SVP of payments and financial services. “For too long, supplier portals have been friction points, requiring a person to manually complete what should be an automated step.”
Mark Nelsen, Visa’s SVP and head of product for commercial and money movement solutions, said the companies are “testing how identity, payment controls and transaction visibility can make that model work”. Kunal Patel, SVP of payments at Billtrust, said agentic commerce “will only move forward if businesses can trust agents to operate across systems with the same clarity and accountability they expect from people”.
How far along is it?
“The pilot is currently live and processing end-to-end transactions with participating buyers using BILL and Billtrust suppliers,” the release says. It does not say how many transactions have been processed, how much money has moved, or how many buyers and suppliers are taking part.
The companies say they “will continue exploring opportunities in agentic payments” as the pilot goes on. They have not given an end date or a wider launch plan.
Our read
This is TSN’s analysis. Business invoices are a sensible first home for agent payments: the decisions are already made by people and rules, and the agent only does the typing. The interesting part is identity, not intelligence. If suppliers accept a signed agent in place of a CAPTCHA, the bigger shift is in how websites treat automated traffic, a theme in TSN’s look at the payments race behind AI agents. Volumes will show whether it scales.
Sources
- Visa, BILL and Billtrust: “Visa, BILL and Billtrust Launch First Live Pilot for Trusted AI Agent Payments Between Buyer and Supplier Platforms” (Business Wire, 20 October 2026)
- Visa: “Visa Introduces Trusted Agent Protocol: An Ecosystem-Led Framework for AI Commerce” (14 October 2025)
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- AI Agent Money, 8 October: Hone, Vesta and Catalyst Raise Funding; Crossmint Launches Agent Checkout
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