Authoryze is the focused option for an agent buying things at merchants on a card. It connects over MCP, so Claude, ChatGPT, Claude Code, and Meta's Muse plug in without an SDK. It enforces per-agent and cross-agent limits, merchant allowlists, and an approval threshold on every request server-side, sends anything over the threshold to a person, and never falls back to handing the agent your real card. Teams share one envelope with approvers and a record per member and agent. Crossmint takes a broader infrastructure approach. Its Agent Cards issue a one-time card number or network token from the user's existing Visa or Mastercard over Visa Intelligent Commerce or Mastercard Agent Pay, alongside stablecoin wallets across many chains.
Feature Comparison
| Feature | Authoryze | Crossmint |
|---|---|---|
| Card model | Single-use credential per approved purchase, through the card networks' agentic programs (Visa Intelligent Commerce and Mastercard Agent Pay) | One-time number or network token derived from an existing Visa or Mastercard, expires in minutes |
| Integration | MCP-native via a single MCP server: Claude, ChatGPT, Claude Code, Codex, Cursor, Meta's Muse, custom agents | API/SDK, plus lobster.cash, Crossmint's own skill and CLI for Claude Code, OpenClaw, Cursor, Codex, and Gemini |
| Spend controls | Per-transaction caps, daily/weekly/monthly limits, merchant allow/blocklists, aggregate caps across agents, approval over thresholds | Amount, merchant, and expiry on each order intent; threshold approvals and audit logs appear in marketing copy, not the card API docs |
| Human approval | Built-in approval flow by email and dashboard, with duplicate detection | One-time passkey authorization of an intent, no threshold-triggered review documented |
| Teams | Shared team envelope, approvers, per-member and per-agent records, one monthly plan | Not documented for agent cards |
| Stablecoin / crypto | None, card rails only | Yes (USDC, x402, many chains) |
| Card data exposure | Agent never sees your real card; the single-use card comes back directly from retrieve_card, once | One-time number on network rails; the encrypted fallback hands the agent the user's real card |
Integration Model
Authoryze is MCP-native, so connecting it to Claude, ChatGPT, or a custom agent framework is adding one MCP server to your config. No SDK wiring, no new client library. The agent calls request_purchase, rules are enforced server-side, and once the purchase is approved the agent calls retrieve_card and gets the card in that response. Crossmint is API/SDK-first and requires integrating against its REST or SDK surface, with lobster.cash as an agent-facing skill and CLI for coding agents. If your agents already speak MCP, Authoryze is the lighter lift.
No Fallback to Your Real Card
Both products give the agent a one-time credential issued for one purchase. The difference is what happens when the network credential is unavailable. Crossmint's docs describe a fallback that returns the user's real saved card, encrypted to the agent, and are clear that the decrypted value is the real card and not a one-time number. Authoryze has no such fallback. If a single-use card cannot be issued, the request fails, and your real card never reaches the agent.
Spend controls differ too. Crossmint's card permissions API sets an amount, a description, an expiry, and an optional merchant on each order intent, and the user authorizes the intent once with a passkey. Its marketing pages describe spending limits, merchant whitelisting, threshold-based human approval, and auditable logs, but we could not find those as documented API features. Authoryze enforces per-agent and cross-agent limits, merchant allowlists, and an approval threshold on every request server-side.
Simple and Card-Only
Authoryze is deliberately card-only and crypto-free. Single-use cards on existing card rails, no stablecoins, wallets, or chains to manage. For teams who want agent spending to stay simple, predictable, and on cards, that focus is the point. Crossmint additionally spans stablecoin rails, including USDC and x402 across multiple chains, and acts as Merchant of Record for its Agent Checkouts product.
When Authoryze Is the Right Choice
Choose Authoryze if you want the simplest MCP-native way to give agents card spending with strong human-in-the-loop controls, duplicate purchase protection, and a full audit trail, without taking on crypto rails or additional infrastructure. Per-agent rules, cross-agent aggregate caps, approval for over-threshold requests, and shared team envelopes are built in.
Sources
Crossmint claims on this page were checked on September 16, 2026 against Crossmint's pricing page (crossmint.com/pricing), Agentic Cards page (crossmint.com/products/agentic-cards), agentic payments page (crossmint.com/solutions/agentic-payments), AI assistants docs (docs.crossmint.com/introduction/ai-assistants), Agent Cards docs (docs.crossmint.com/agents/payment-methods/cards/retrieve-agent-card), and the Crossmint/mcp-crossmint-checkout repository on GitHub. If something has changed since, let us know.
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