From the Signets team
Engineering deep dives, product updates, and thoughts on building payment infrastructure for AI agents.
Best OpenClaw Skills for AI Agent Payments in 2026
The top Claude Code and OpenClaw skills for giving AI agents payment capabilities. Install virtual card provisioning, spending controls, and transaction tracking in minutes.
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24 articles
OpenClaw Payments: Intent → Card → Verify (A Safe Checkout Flow)
A 5-minute, copy/paste checkout flow for OpenClaw agents: declare intent, get isolated credentials, complete purchase, and verify the transaction.
How to Give Your AI Agent a Credit Card (Without the Risk)
Step-by-step guide to enabling AI agent payments safely. Learn why you shouldn't share your personal card, and how virtual cards with spending policies solve the problem.
OpenClaw Skills Security: Permission Scopes for Money
A threat model and permission-scoping guide for OpenClaw payment skills: what to lock down, what to log, and what to never expose to an LLM.
OpenClaw Checkout Controls: Limits, Merchant Locks, and Velocity Caps
Where to put guardrails in an OpenClaw checkout flow: hard limits, merchant locks, approval gates, and velocity controls that stop runaway spend.
OpenClaw Subscriptions: Recurring Intents Without Giving Away Your Main Card
A pattern for OpenClaw agents to manage SaaS subscriptions safely: billing-window unlock, merchant matching, amount tolerance, and clean reconciliation.
AI Agent Payment Verification in 2026: Attestation, Identity, and Audit Trails
What “payment verification” actually means for AI agents: prove who the agent is, what it’s allowed to do, and why a charge happened.
Agent-Based Payment Platforms in 2026: A Practical Comparison Framework
A buyer’s framework for evaluating agent payment platforms: rails, credential model, policy enforcement, verification, and operational auditability.
Benefits of AI Agents in Payment Processing (2026) — and the Controls You Need
AI agents can accelerate procurement, reconciliation, and customer ops—but only if spending is isolated, auditable, and policy-bound.
Agent Reconciliation: Receipts, Evidence Logs, and ‘Explain This Charge’ Workflows
How to make agent spend operationally safe: store intent-linked evidence records, capture receipts, and generate human-readable explanations for every charge.
Refunds & Returns for AI Agents: How to Close the Loop Without Chargeback Chaos
Agents will buy the wrong thing. Build a refunds-and-returns loop that captures evidence, escalates when needed, and avoids disputes whenever possible.
Merchant Locks for Agent Spend: MCC Allowlist vs Merchant Allowlist vs Descriptor Matching
Three ways to lock down where an agent can spend: MCC/category boundaries, exact-merchant allowlists, and descriptor matching. Tradeoffs and recommended defaults.
Cards vs x402 vs API Billing: Which Rail Fits Agent Purchases?
A practical comparison of agent payment rails: cards for universal acceptance, x402 for HTTP-native payments, and API billing for platform-specific spend.
Virtual Cards vs Tokenized Cards vs Shared Tokens: Blast Radius Tradeoffs for Agents
A clean comparison of three credential models for agent spend: dedicated virtual cards, network tokenization, and shared/delegated tokens.
Why AI Agents Should Never Share Your Payment Credentials
Token delegation exposes your entire credit line to agent failures. Dedicated cards create hard limits that policy engines cannot bypass.
Building a Truly Autonomous Financial Stack - Connecting MCP Servers to Agent Cards
Step-by-step tutorial for adding payments to AI agents using Signets's MCP server with Claude Desktop or Cursor. Code examples included.
Merchant Drift: The Invisible Security Hole in Shared Payment Tokens
How AI agents authorized for one merchant category can silently spend elsewhere - and why dedicated cards are the only real defense.
Why Your AI Agent Shouldn't Use Your Credit Card
Delegating your personal card to an AI agent sounds convenient, but it exposes your full credit line. Here's why dedicated cards are safer.
How to Cap an AI Agent's Spending at Exactly $50
Create a virtual card with an isolated $50 balance for your AI agent. One API call, contained blast radius, no larger credit line at risk.
The AI Agent Payments Landscape in 2026 - Protocols, Players, and Primitives
A comprehensive guide to agentic payments infrastructure in 2026: wallet providers, identity layers, card issuers, and network standards.
Agentic Payments in 2026 - Why Virtual Cards Win Over Stablecoins For Now
AI agents need payment rails that work today. Here's why virtual cards beat stablecoins for agentic commerce in 2026, and when that might change.
Attestation-Before-Access: A Pattern for Safe Agent Spending
Learn the attestation-before-access pattern for AI agent payments - where agents declare intent before receiving credentials for safer autonomous spending.
What Happens When an AI Agent Overspends? A Post-Mortem
A detailed post-mortem of a $4,800 AI agent overspend incident caused by retry loops and failed policy controls. Lessons for ops and finance teams.
AI Agent Chargebacks: Who's Liable When Your Agent Makes a Bad Purchase?
As AI agents gain spending autonomy, chargeback rules built for humans face hard questions. We explore the liability gaps no one has solved yet.