Acp Sandbox

com.flo-voice1Published by flo-voice1.comOfficial publisherv1.0.1Updated Nov 3, 2026

Agentic Commerce Protocol sandbox: agent builds a cart, human approves a real PayPal payment.

VerifiedStreamable HTTPWeb executableFinanceBusiness & Commerce

Overview

Acp Sandbox's hosted MCP server (acp-sandbox.flo-voice1.com), published by flo-voice1.com; no sign-in required; Streamable HTTP; 8 tools.

No AI overview yet: these facts come from the registry entry and the server itself.

Publisher
flo-voice1.com
Endpoint
acp-sandbox.flo-voice1.com
Last checked

Installation

In SourceWeft

  1. Open Acp Sandbox in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/com.flo-voice1%2Facp-sandbox/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "acp-sandbox": {
      "type": "http",
      "url": "https://acp-sandbox.flo-voice1.com/mcp"
    }
  }
}

README

acp-sandbox

A hosted mock merchant implementing the Agentic Commerce Protocol (ACP) checkout API — for testing AI shopping-agent integrations end to end without real money, a real store, or real buyer data.

Live at https://acp-sandbox.flo-voice1.com — open it in a browser for the quickstart page, or hit the endpoints below directly.

Why

ACP defines how a shopping agent talks to a merchant to complete a purchase. Stripe's own test mode covers the payment side (test cards, test API keys), but there's no hosted "fake merchant" a third-party agent developer can point their code at to verify their ACP client logic actually works — creating a session, updating it, completing checkout, handling errors. This fills that gap.

v1 scope: checkout session lifecycle only (create / retrieve / update / complete / cancel), against a small static demo catalog. Payment is stubbed — any payment_data you send is accepted and the session is marked paid. OAuth delegated-authentication is not implemented in v1.

Quickstart

  1. Get a test API key (no signup, no email verification — this is a sandbox):
bash
curl -X POST https://acp-sandbox.flo-voice1.com/keys \  -H "Content-Type: application/json" \  -d '{"email":"[email protected]"}'# => {"api_key":"acps_test_..."}
  1. See what you can buy:
bash
curl https://acp-sandbox.flo-voice1.com/catalog
  1. Create a checkout session:
bash
curl -X POST https://acp-sandbox.flo-voice1.com/checkout_sessions \  -H "Authorization: Bearer acps_test_..." \  -H "Content-Type: application/json" \  -d '{    "line_items": [{"id": "item_demo_headphones", "quantity": 1}],    "currency": "usd",    "buyer": {"email": "[email protected]"}  }'
  1. Complete it (any payment_data is accepted):
bash
curl -X POST https://acp-sandbox.flo-voice1.com/checkout_sessions/{id}/complete \  -H "Authorization: Bearer acps_test_..." \  -H "Content-Type: application/json" \  -d '{"payment_data": {"handler_id": "test", "instrument": {"type": "card", "credential": {"type": "spt", "token": "tok_test"}}}}'
  1. Inspect what your agent actually sent:
bash
curl https://acp-sandbox.flo-voice1.com/logs -H "Authorization: Bearer acps_test_..."

Endpoints

MethodPathDescription
POST/keysIssue a test API key
GET/catalogList demo items you can reference in line_items
POST/checkout_sessionsCreate a session
GET/checkout_sessions/{id}Retrieve a session
POST/checkout_sessions/{id}Update a session (line items, buyer, fulfillment)
POST/checkout_sessions/{id}/completeFinalize checkout, creates an order
POST/checkout_sessions/{id}/cancelCancel a session
GET/logsLast 50 requests made with your key

Responses follow the real ACP CheckoutSession / Order / Error schemas (2026-04-17 spec version) for the fields this sandbox supports. Fields outside v1 scope (discounts, fulfillment options, marketplace details, etc.) are simply omitted rather than faked.

Known v1 limitations

  • No real payment processing — complete always succeeds.
  • No OAuth delegate_authentication flow.
  • No fulfillment options (shipping/pickup) — sessions go straight to ready_for_payment.
  • Fixed demo catalog, not a real product feed.

Local development

bash
npm installnpm run dev   # tsx watch, http://localhost:3900

Uses Node's built-in node:sqlite (no native dependencies) for storage — data persists in ./data/acp-sandbox.db.

Source: README.md at commit 4f9ccbc

Tools

8

list_products

List products

List everything the demo store sells, with product ids and prices. Prices are in USD.

Takes no parameters.

create_checkout

Create a checkout

Start a checkout (an Agentic Commerce Protocol checkout session) with the products and quantities the user wants. Returns the session id, the cart and its total. If no api_key is given, a sandbox key is created and returned.

Parametersitemsrequiredapi_keybuyer_email

update_checkout

Change the cart

Replace the items in an open checkout (e.g. the user changed their mind). Any PayPal payment created for the old total is dropped.

Parametersitemsrequiredapi_keysession_idrequired

get_checkout

Get a checkout

Read the current cart, total, payment status and order of a checkout.

Parametersapi_keysession_idrequired

request_paypal_payment

Ask the user to pay with PayPal

Create a PayPal (sandbox) payment for the checkout's exact total. Returns approve_url, the PayPal link where the user approves the payment.

Parametersapi_keysession_idrequired

wait_for_payment_approval

Wait for the user to approve the PayPal payment

Wait (up to 45s per call) until PayPal reports the user approved the payment. Returns still_waiting if the user has not approved yet.

Parametersapi_keysession_idrequiredtimeout_seconds

complete_checkout

Complete the checkout

Place the order. With payment "paypal" the approved PayPal payment is captured first, and the order only goes through if PayPal confirms the money for the exact total. "mock" skips real payment (testing only).

Parametersapi_keypaymentsession_idrequired

cancel_checkout

Cancel a checkout

Cancel an open checkout. Nothing is charged.

Parametersapi_keysession_idrequired

Version history

2
  1. v1.0.1LatestNov 3, 2026
  2. v1.0.0Oct 9, 2026

Score

100% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

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