Capri Ai Agentpay

Capri AgentPay is the first governed payment layer built specifically for AI agents, solving the security nightmare of handing autonomous systems direct access to private keys. When agents start calling paid APIs, internal tools, and settling transactions on their own, a single bad prompt can drain an entire wallet. Capri eliminates that risk by inserting a runtime between the agent and the signer. The agent calls a single typed surface, and when it encounters an HTTP 402 Payment Required challenge, Capri evaluates your policy in a fixed, predictable order. Every payment is checked against merchant allowlists, per-transaction caps, daily budgets, and an auto-approve threshold that can pause for human review. Only when every check passes does Capri settle the payment, retry the original request with cryptographic proof attached, and store a signed receipt you can verify offline. This product is for engineering teams shipping agent systems in production who need real controls over budgets, approvals, and audit trails. It replaces raw key access with six narrow MCP tools, a VS Code extension for developer workflows, and Base Sepolia sandbox settlement for testing. Agents never hold your keys, and every signature is policy-checked before it exists. Capri AgentPay transforms a security vulnerability into a manageable, auditable, and operator-friendly payment pipeline.

x402 Payment Handling

Capri AgentPay natively intercepts HTTP 402 Payment Required challenges during agent operations. When an agent hits a paid API endpoint, the runtime automatically detects the payment requirement, evaluates your configured policy, and handles the entire settlement flow. The agent never sees the private key or signs anything directly. After payment settles, Capri retries the original request with proof of payment attached, ensuring seamless continuation of the agent workflow without manual intervention.

Per-Agent Budgets and Caps

Each agent operates under its own configurable spending limits. You set per-transaction caps that prevent any single payment from exceeding a predefined amount, and daily budgets that reset automatically. These boundaries are enforced at runtime, so even if an agent goes rogue or a prompt injection occurs, the financial damage is strictly contained. The policy engine evaluates these caps in a fixed order, making the system predictable and auditable for security teams.

Merchant Allowlists

Control exactly which merchants or API endpoints your agents can pay. Capri AgentPay maintains a merchant allowlist that acts as the first gate in the policy evaluation chain. If a payment request targets a merchant not on the list, the transaction is denied immediately without further processing. This zero-trust approach ensures your agents only interact with approved services, eliminating the risk of funds being sent to malicious or unauthorized destinations.

Human-in-the-Loop Approvals

Capri AgentPay includes an auto-approve threshold that enables fast, frictionless payments for small amounts while flagging larger transactions for human review. When a payment exceeds the threshold, the operator sees the exact amount, asset, chain, and recipient before making a decision. The review queue is clear and actionable, with policy branch logs showing exactly which checks passed or failed. This balances automation with oversight, giving teams confidence to deploy agents in production.

Autonomous Research Agents Accessing Paid APIs

Research teams deploy AI agents that need to call premium data APIs for real-time market analysis, scientific databases, or news feeds. With Capri AgentPay, these agents can autonomously pay for API access without holding private keys. The policy engine ensures spending stays within daily budgets, and any unusual large requests trigger human review. This enables round-the-clock research workflows without security teams worrying about wallet drainage from prompt injection attacks.

Internal Tool Automation with Budget Controls

Engineering teams build agents that automate tasks across internal paid services like cloud compute, data warehouses, or SaaS platforms. Capri AgentPay allows each agent to have its own budget and merchant allowlist, so a CI/CD agent can pay for build minutes while a data pipeline agent accesses analytics APIs. The per-agent caps prevent one compromised agent from impacting others, and the signed receipts provide a clear audit trail for finance reconciliation.

Customer Support Agents Handling Transaction Fees

Support agents deployed to handle customer issues may need to process refunds, pay for third-party verification services, or cover small transaction fees. Capri AgentPay enables these agents to make low-value payments automatically while requiring human approval for any amount above a threshold. The operator sees the full context of the request, including the customer ID and reason, ensuring compliance while maintaining response speed.

Multi-Agent Orchestration with Shared Resources

Teams running complex multi-agent systems where one coordinator agent delegates tasks to specialized sub-agents benefit from Capri AgentPay shared policy framework. The coordinator sets global budgets and allowlists, while sub-agents operate within those boundaries. If a sub-agent attempts to make a payment outside its scope, the policy engine denies it and logs the incident. This creates a secure, hierarchical payment system that scales with agent complexity.

How does Capri AgentPay prevent an agent from draining a wallet?

Capri AgentPay inserts a policy runtime between the agent and the signer. The agent never holds or accesses the private key. Every payment request goes through a fixed policy evaluation chain: merchant allowlist, per-transaction cap, daily budget, and auto-approve threshold. If any check fails, the payment is denied before a signature is ever created. Even with a compromised agent, the financial damage is strictly limited by these configurable boundaries.

What is x402 and why is it important for AI agents?

HTTP 402 Payment Required is a standard status code that indicates an API requires payment before serving a request. Capri AgentPay natively handles this by intercepting 402 responses, evaluating payment policy, settling the transaction, and retrying the original request with proof of payment. This allows agents to autonomously access paid APIs without manual intervention, enabling fully automated workflows that require real-time data or premium services.

Can I test Capri AgentPay before deploying to production?

Yes, Capri AgentPay includes a Base Sepolia sandbox settlement environment. This testnet allows you to configure policies, run agents through payment scenarios, and verify the entire flow without using real funds. The VS Code extension provides a local development experience, and the documentation includes quickstart guides and deployment notes. You can validate your setup thoroughly before moving to mainnet.

What kind of receipts does Capri AgentPay generate?

Every settled payment generates a signed receipt containing hashes, timestamps, and verification fields. These receipts are stored and can be verified offline, meaning you do not need to trust Capri servers to confirm a payment occurred. The receipt structure includes the merchant address, amount, asset, chain, policy evaluation results, and cryptographic signatures. This provides a tamper-proof audit trail for finance teams and security audits.