Agentic payment infrastructure

AI-Powered Payment
Operations

Build, test, and operate agent-assisted payment flows with payment intents, sandbox callbacks, recovery actions, and clear audit trails.

Built around real payment operations

How It Works

Three steps to safer payment flows

01

Create a Workspace

Start in sandbox with payment intents, simulator callbacks, and API keys for controlled testing.

02

Connect a Rail

Model flows for M-Pesa-style STK push, webhooks, retries, and reconciliation before live credentials.

03

Review and Recover

Use agents to suggest recovery actions and risk notes while deterministic APIs control final execution.

Features

Built for controlled payment operations

The core building blocks for sandbox testing, operator review, and guided live payment pilots.

Payment Intent API

Create, confirm, cancel, and inspect payment states through a predictable API.

Sandbox Simulator

Test success, cancellation, timeout, and failed-payment callbacks before live rails.

Agentic Recovery

Generate suggested next steps when a payment fails, times out, or needs review.

M-Pesa-Ready Flow

Design around STK push, asynchronous callbacks, and merchant reconciliation.

Operational Timeline

Keep payment events, callback payloads, and agent notes in one readable trail.

Developer-First API

Clean REST routes, webhook-first design, and a backend foundation ready for pilots.

Pricing

Pricing for the build phase

Start in sandbox, then move into a guided pilot when you are ready to test live rails.

Sandbox

Free

for local testing

For building and testing payment flows before live money.

  • Simulator payment intents
  • M-Pesa sandbox-ready flow
  • Webhook callback testing
  • Local dashboard experiments

Pilot

Custom

early access

For merchants validating real payment workflows with Constra support.

  • Guided M-Pesa setup
  • Payment recovery workflows
  • Agent-assisted risk notes
  • Priority product support

Enterprise

Custom

with partner rails

For teams needing governance, integrations, and deployment support.

  • Custom rail integrations
  • Audit and compliance workflows
  • Dedicated implementation support
  • Azure deployment planning

Early signal

What builders keep asking for

Constra is being shaped around real payment pain: better recovery, clearer sandboxing, and AI that stays inside secure rails.

Merchant discovery

Payment recovery

“We do not need another checkout button. We need failed payments to explain what happened and help the customer recover.”

Developer feedback

Realistic sandboxing

“The sandbox has to feel close to production: payment intents, webhook retries, and clean callback logs before live credentials.”

Operator research

Controlled autonomy

“AI is useful only if final money movement stays deterministic, auditable, and easy to override.”

Positioned from founder research and early product validation.

FAQ

Common questions

Constra is an early-access payment infrastructure product. Teams start with sandbox and simulator workflows, then move into guided live pilots with approved payment rails and compliance checks.

Launch your Constra sandbox

Start with payment intents, simulator callbacks, and agent-assisted recovery flows. Move into a guided live pilot when your rails and compliance are ready.