Loyverse for AI agents
Loyverse is free point-of-sale software for small retail and hospitality businesses to manage sales, inventory, employees, and customer loyalty from a single register. Connect it once through Arc0, and your agent, or Claude, ChatGPT and Cursor, can use it through one MCP endpoint, limited to what each user approved.
What agents do in Loyverse.
Look up an item's stock
Check an item's current inventory details before confirming it is available to sell at the register.
Create a sales receipt
Record a new receipt for a completed sale coming from another channel.
Approve before deleting an item
Require approval before deleting a catalog item, since it removes it from past receipts and reports.
58 Loyverse actions, graded by risk.
Every Loyverse action is tagged read, write or destructive, so one policy covers the whole app and new actions inherit the right default.
read
33Look things up. Allowed by default.
- loyverse.get_taxGet Tax
- loyverse.get_itemGet Item
- loyverse.get_jwksGet JWKS
- loyverse.get_storeGet Store
- loyverse.list_itemsList Items
- loyverse.get_receiptGet Receipt
- loyverse.get_variantGet Variant
- loyverse.get_webhookGet Webhook
- loyverse.list_shiftsList Shifts
- loyverse.list_storesList Stores
- loyverse.list_taxes2List Taxes
- loyverse.get_categoryGet Category
- loyverse.get_customerGet Customer
- loyverse.get_discountGet Discount
- loyverse.get_employeeGet Employee
- loyverse.get_modifierGet Modifier
write
13Create and change things. Allow, or ask the user first.
- loyverse.create_receiptCreate Receipt
- loyverse.update_inventoryUpdate Inventory
- loyverse.create_or_update_taxCreate or Update Tax
- loyverse.create_or_update_itemCreate or Update Item
- loyverse.create_or_update_variantCreate or Update Variant
- loyverse.create_or_update_webhookCreate or Update Webhook
- loyverse.create_or_update_categoryCreate or Update Category
- loyverse.create_or_update_customerCreate or Update Customer
- loyverse.create_or_update_discountCreate or Update Discount
- loyverse.create_or_update_modifierCreate or Update Modifier
- loyverse.create_or_update_supplierCreate or Update Supplier
- loyverse.create_or_update_pos_deviceCreate or Update POS Device
- loyverse.upload_item_imageUpload Item Image
destructive
12Delete, cancel or archive. Ask first, or deny outright.
- loyverse.delete_taxDelete Tax
- loyverse.delete_itemDelete Item
- loyverse.delete_variantDelete Variant
- loyverse.delete_webhookDelete Webhook
- loyverse.delete_categoryDelete Category
- loyverse.delete_customerDelete Customer
- loyverse.delete_discountDelete Discount
- loyverse.delete_modifierDelete Modifier
- loyverse.delete_supplierDelete Supplier
- loyverse.delete_item_imageDelete Item Image
- loyverse.delete_pos_deviceDelete POS Device
- loyverse.create_refundCreate Refund
Loyverse in three steps.
- 01Your users connect LoyverseThey add their Loyverse api key on Arc0 Connect, under your brand. It goes straight into the vault.
- 02You set the rulesReads run, writes like “create Receipt” can wait for the user, and “delete Tax” can be denied outright.
- 03Any agent can actYour agent calls Loyverse through the Arc0 SDK or MCP, and so can Claude, ChatGPT and Cursor. Every call lands on the audit log.
await arc0.policies.set('loyverse', { read: 'allow', write: 'ask', // create_receipt destructive: 'deny', // delete_tax }) # Claude Code: the same connection, one URL $ claude mcp add --transport http arc0 \ https://mcp.arc0.ai/u/u_8f2
How Loyverse connects.
Users add their Loyverse api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.
The same Loyverse connection serves your agent over MCP and your own backend over REST and the proxy, so a user connects once. How Arc0 handles credentials →
- AUTH
- API key
- CREDENTIALS
- Per-tenant encrypted vault
- MODEL SEES
- Results only, never credentials
- AUDIT LOG
- Every call, on every plan
Use Loyverse from any agent.
Loyverse and Arc0, answered.
Can I use Loyverse with Claude, ChatGPT or Cursor?
Yes. Connect Loyverse to Arc0 once, then add your Arc0 MCP URL to Claude, ChatGPT, Cursor, Claude Code or any other remote-MCP client. Each assistant only gets the Loyverse actions you allow.
How do users connect Loyverse?
Users add their Loyverse api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.
Which Loyverse actions can my agent take?
58 in total: 33 read, 13 write and 12 destructive, such as “create Receipt”. Your policies decide which of them each agent may call.
Can I stop my agent from deleting things in Loyverse?
Yes. Actions like “delete Tax” are graded destructive. Set destructive actions to deny, or to ask so the user approves each one, and blocked calls still show up on the audit log.
Can my own backend call Loyverse too?
Yes. The same Loyverse connection is available over REST and through the Arc0 proxy, so your product and your agent share one connection per user.
Plug Loyverse into your agent.
Your users connect Loyverse once, under your brand. Your agent gets 58 actions behind your policies, with every call on the record.
Free to build · MCP + REST · Audit log on every plan