# Square L1 · Needs a person Square sells payments, point-of-sale, invoices and banking for small businesses. **Can an AI agent use Square? No.** Our agent couldn't get into Square on its own. Category: Payments · Connects by: MCP, API, SDK · Agent payments: None found · Driven: 27 Oct 2026 **How to connect** - MCP server URL: `https://mcp.squareup.com/mcp` (streamable HTTP, documented). Source: https://mcp.squareup.com/mcp - API base URL: `https://connect.squareup.com` (documented). Source: https://developer.squareup.com/reference/square/apple-pay-api/register-domain **Level 1: Needs a person.** Agents can't get in on their own. - Got in by: A person sets it up (Not on its own in its last 2 drives) - Got as far as: Sign up (Use, Pay and Leave not reached) - To reach L2: Let an agent sign up on its own. 2 drives on one day, awaiting confirmation [What the levels mean](https://agentdrives.com/method/levels?via=md) ## From finding it to leaving What an agent managed without a person, at each step. 1. **Find**: On its own. Docs it can act on: llms.txt, an OpenAPI and an MCP server. 478 doc pages read. 2. **Get in**: Stopped. Can't sign up. An invisible bot check refused the sign-up on both email addresses. Stopped here. 3. **Use**: Not reached. Tasks need an account. 4. **Pay**: Not reached. Buying needs an account. 5. **Leave**: Not reached. Nothing to cancel or delete. ## Getting in None of the 2 ways in worked without a person. Where it stopped: **Email and password**. An invisible bot check refused the sign-up on both email addresses. - Agent on a server (API, MCP, CLI): No. Signing up needs a person: the form refused our agent's browser. - Assistant in its own browser (Like ChatGPT agent): Partly. A normal browser got through at sign-up where our scripted one didn't. The steps after it weren't tried in a normal browser. - Signed agent (Known to Cloudflare): Not checked. Not checked. | Way in | What happened | |---|---| | Email and password | Stopped by a CAPTCHA | | Sign-in for apps (OAuth, MCP) | Stopped: The consent page needs an account | - Crawlers: **robots.txt asks crawlers to stay off sign-up and the API.** Nothing to fix. It keeps these pages out of search and doesn't stop agents signing up. [How agents get past bot checks](https://agentdrives.com/guides/let-signed-agents-past-your-bot-check.md?via=md) ## What an agent can do with Square No task was tried: our agent couldn't get into Square. Core tasks Square offers an agent: - Accept an online payment (API) - Take an in-person payment (API) - Create and send an invoice (API) - Refund a payment (API) - Create a customer (API) - Create an order for a customer (API) - Read the account balance (Web app) - Pay out the balance to a bank account (API) What it can't do, and why: - Get an access token or make any call that touches data: Tokens come from the Developer Console, which needs an account. - Use the remote MCP server on the Sandbox: The docs say remote instances only reach production. 32 more tasks it offers: - Save a customer's payment method (API) - Enable payment methods (Afterpay, Cash App Pay, ACH) (Web app) - Create a product (API) - Update inventory levels (API) - Create a discount code (API) - Create an estimate or quote (API) - Convert an estimate to an invoice (Web app) - Set up recurring invoices (API) - Set up automatic payment reminders (API) - Request a deposit or retainer (API) - Accept online payment on an invoice (Web app) - Build an online store or booking site (Web app) - Send an email or text marketing campaign (Web app) - Run a sales/payment report (API) - Apply for business financing (Square Loans) (Web app) - Get a Square Credit Card (Web app) - Pay bills automatically (Square Bill Pay) (Web app) - View payouts and settlements (API) - Schedule shifts and track team attendance (API) - Run payroll for employees (Web app) - Run a loyalty rewards program (API) - Issue physical or digital gift cards (API) - Offer self-service kiosk ordering (Web app) - Convert sales revenue to bitcoin (Web app) - Change account settings (API) - Invite a team member (API) - Set a team member's role or permissions (API) - Connect a third-party accounting integration (Web app) - Set the brand logo and colors on invoices (Web app) - Create an API key / access token (API) - Register a webhook subscription (API) - Use a sandbox or test mode (API) **Surface audit:** 349 documented operations, 3 run, 3 passed, 346 blocked (sandbox or plan limits). ## How an agent connects MCP, API, SDK and llms.txt found. Agent surfaces: API documented · MCP tested · CLI none found · SDK documented · Docs tested · Agent payments none found. Issues found: 0. - **MCP server**: 2 tested. Official server. Beta; remote OAuth server (production only) and local npm square-mcp-server 0.1.2 with 3 tools when driven. Sign-in needed to see its tools. https://mcp.squareup.com/mcp (4 tools across its docs) - **API**: Listed, not tested. REST, 332 operations in the OpenAPI spec. (333 operations across its docs) - **OpenAPI**: Unknown. - **CLI**: None found. - **SDK**: Listed, not tested. 7 official SDKs; npm square 46.0.0. (7 methods across its docs) - **llms.txt**: Yes. https://squareup.com/llms.txt - **Agent payments**: None found. The checkout wasn't reached: Square Plus, $49 a month. - **Docs**: No gaps in what we read. Covers getting started, auth, error codes and code examples. (478 of 582 pages read) [The standards](https://agentdrives.com/standard) ## Tips for agent builders - Read the docs as Markdown by appending .md to a developer.squareup.com/docs URL; start from developer.squareup.com/llms.txt - Use the OpenAPI spec at raw.githubusercontent.com/square/connect-api-specification/master/api.json (332 operations) - The remote MCP server (mcp.squareup.com/mcp) only reaches production data: test on the Sandbox with the local server - Send an Idempotency key on every write: llms.txt says every write endpoint accepts one ## How Square compares In Payments: 2 of the 7 products we drove in Payments are higher; 4 others share L1. - [GoCardless](https://agentdrives.com/tools/gocardless.md?via=md): L4, Gets in on its own - [Stripe](https://agentdrives.com/tools/stripe.md?via=md): L3, Gets in on its own - [Lemon Squeezy](https://agentdrives.com/tools/lemonsqueezy.md?via=md): L1, Can't sign up on its own - [Mollie](https://agentdrives.com/tools/mollie.md?via=md): L1, Can't sign up on its own - [PayPal](https://agentdrives.com/tools/paypal.md?via=md): L1, Can't sign up on its own - [Polar](https://agentdrives.com/tools/polar.md?via=md): L1, Can't sign up on its own - **Square** (this page): L1, Can't sign up on its own [All 7 in Payments](https://agentdrives.com/categories/payments?via=md) Sorted by level, then work done, then time to the first call. [How we rank](https://agentdrives.com/method?via=md#order) On our standard (24 criteria: against other payments products where we measured 5 or more, otherwise against every product we measured): - [Errors a program can read](https://agentdrives.com/standard#err-02): **The best result** All 4 others (payments products) lower. - [Descriptions that say when to use the tool](https://agentdrives.com/standard#mcp-04): **Ahead of most** 51 of 65 others (every product) lower, 14 the same. - [Typed, tight input schemas](https://agentdrives.com/standard#mcp-06): **Ahead of most** 50 of 65 others (every product) lower, 15 the same. - [Agents pick the right tool](https://agentdrives.com/standard#mcp-05): **Ahead of most** 46 of 65 others (every product) lower, 19 the same. - [Export before leaving](https://agentdrives.com/standard#leave-03): **Ahead of most** 3 of 5 others (payments products) lower, 2 the same. - [A tool list that fits](https://agentdrives.com/standard#mcp-11): **Ahead of most** 33 of 65 others (every product) lower, 32 the same. - [Docs an agent can navigate](https://agentdrives.com/standard#docs-11): **Level with most** 3 of 5 others (payments products) the same, 2 lower. - [Versions an agent can pin](https://agentdrives.com/standard#api-07): **Level with most** 3 of 4 others (payments products) the same, 1 lower. - [Tool names that sort themselves](https://agentdrives.com/standard#mcp-03): **Level with most** 61 of 65 others (every product) the same, 4 lower. - [Pages fit one fetch](https://agentdrives.com/standard#docs-08): **The same as all** 5 others (payments products). - [A path written for agents](https://agentdrives.com/standard#docs-10): **The same as all** 5 others (payments products). - [Fast to the first call](https://agentdrives.com/standard#in-03): **The same as all** 4 others (payments products). - [One way to page through lists](https://agentdrives.com/standard#api-03): **The same as all** 4 others (payments products). - [Real status codes](https://agentdrives.com/standard#err-01): **The same as all** 5 others (payments products). - [Payments safe to retry, with a receipt](https://agentdrives.com/standard#pay-04): **In the middle** 1 of 4 others (payments products) lower, 2 the same, 1 higher. - [WebMCP tools on the web app](https://agentdrives.com/standard#proto-02): **The same as all** 5 others (payments products). - [Answers sized for an agent](https://agentdrives.com/standard#api-04): **In the middle** 1 of 4 others (payments products) lower, 1 the same, 2 higher. - [The best way in is built for agents](https://agentdrives.com/standard#in-12): **Level with most** 3 of 5 others (payments products) the same, 2 higher. - [Sign-in for agents acting for a person](https://agentdrives.com/standard#in-08): **Behind most** 3 of 5 others (payments products) higher, 2 the same. - [Every way in works for an agent](https://agentdrives.com/standard#in-11): **Behind most** 3 of 5 others (payments products) higher, 2 the same. - [A request id on every answer](https://agentdrives.com/standard#err-07): **Behind most** 3 of 5 others (payments products) higher, 2 the same. - [Truthful annotations](https://agentdrives.com/standard#mcp-07): **Behind most** 48 of 65 others (every product) higher, 17 the same. - [Spend an agent can see and cap](https://agentdrives.com/standard#pay-05): **Behind most** 3 of 4 others (payments products) higher, 1 the same. - [Errors say what to do next](https://agentdrives.com/standard#err-03): **The lowest result** All 4 others (payments products) higher. [How each criterion is graded](https://agentdrives.com/standard) ## For the team behind Square **9 things to fix for agents.** Agent surfaces: no issues found. Safety review: 1 issue found. Agents get stuck at Get in. Prove Square is yours, then see where each issue is, read your safety findings and ask for a free drive after a fix. How to fix each one comes with the Audit. - Find: Clear - Get in: Blocks agents - Use: Not reached - Pay: Not reached - Leave: Not reached [Claim Square, free](https://agentdrives.com/app/products?add=squareup.com&ref=listing) · [What a drive covers](https://agentdrives.com/method?via=md) ## Where Square fits - Category: [Payments and finance](https://agentdrives.com/categories/finance?via=md), [Payments](https://agentdrives.com/categories/payments?via=md) - Wall: [Bot checks](https://agentdrives.com/access/get-in/bot-checks) (kept our agent out), [Google reCAPTCHA bot check](https://agentdrives.com/vendors/recaptcha) (the check, and every product we met it at), [Let signed AI agents past your bot check](https://agentdrives.com/guides/let-signed-agents-past-your-bot-check?via=md) (fix guide) - Standards: [MCP](https://agentdrives.com/standards/mcp) (tools an agent can call), [llms.txt](https://agentdrives.com/standards/llms-txt) (its docs, listed for agents) - Steps: [Find](https://agentdrives.com/access/find), [Get in](https://agentdrives.com/access/get-in) (stopped here), [Use](https://agentdrives.com/access/use), [Pay](https://agentdrives.com/access/pay), [Leave](https://agentdrives.com/access/leave) - Rivals: [Lemon Squeezy](https://agentdrives.com/tools/lemonsqueezy?via=md) (L1), [Mollie](https://agentdrives.com/tools/mollie?via=md) (L1), [PayPal](https://agentdrives.com/tools/paypal?via=md) (L1) ## Cited in 1 article - [CLI for AI agents: 11 of 14 databases have one](https://agentdrives.com/research/which-kinds-of-software-give-ai-agents-a-cli-or-mcp-server?via=md) Data: [JSON](https://agentdrives.com/api/tools/squareup.json?via=md) · [Markdown](https://agentdrives.com/tools/squareup.md?via=md) · [History](https://agentdrives.com/tools/squareup/history?via=md) · [Atom](https://agentdrives.com/feeds/tools/squareup.atom) · [JSON Feed](https://agentdrives.com/feeds/tools/squareup.json) · licence [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/) **Found an error?** [Tell us on this page](https://agentdrives.com/tools/squareup?via=md#correct) or read [how corrections work](https://agentdrives.com/corrections?via=md).