MCP server

At a glance

Transport

Streamable HTTP, one JSON-RPC message per request

Protocol revisions

2025-11-25, 2025-06-18, 2025-03-26, 2024-11-05

Authentication

OAuth 2.1 authorization code with PKCE, one store per connection

Tools

39 curated, plus 5 behind mcp:advanced

Guides

• Connect an assistant

  Add the Sign Customiser connector to Claude, ChatGPT, Codex, Cursor or the MCP Inspector, and approve the scopes it asks for.

• Authentication

  How the connector authenticates: discovery, dynamic registration, PKCE, the resource binding, token lifetimes and revoking a connection.

• The advanced catalogue

  Reach every /api/v3 operation through the advanced catalogue: searching operations, the four executors, and the safety rules they enforce.

• Code execution and Code Mode

  Drive the connector from code: Cloudflare Agents Code Mode, Anthropic code execution and mcp-use, and what the schemas give each of them.

Permissions

A connection holds only what the merchant approved on the consent screen. Each tool's reference page names the permission it needs, and a tool called without it answers with the name of the permission to approve rather than failing silently.

• search_docsread

  Look up how Sign Customiser documents something, rather than inferring it from a tool result.

• get_storereadstore:read

  Identify the Store the connection acts for, report which scopes the merchant approved, and read the currency and integration_id the commerce writes require, before calling anything else.

• get_store_subscriptionreadstore:read

  Tell a merchant whether their plan covers what they are asking for, before suggesting a change that their plan would refuse.

• get_analytics_summaryreadanalytics:read

  Answer "how is the store doing" without reading orders one by one.

• list_customiser_prototypesreadcustomisers:read

  Discover which kinds of sign product this Store can create a customiser for, and get the prototype id that creation takes.

• list_customisersreadcustomisers:read

  Discover what a Store sells and obtain the customiser ids the rest of the customiser surface takes.

• get_customiserreadcustomisers:read

  Read one customiser before changing it, and read its settings or labels document in the same call.

• create_customiserwritecustomisers:write

  Add a new configurable sign product to the Store, starting from a prototype rather than from nothing.

• update_customiserwritecustomisers:write

  Change a customiser name, styling mode, behavioural settings or storefront labels, one section at a time.

• set_customiser_statuswritecustomisers:write

  Publish a customiser to the storefront, withdraw it, or bring a deleted one back.

• delete_customiserdestructive writecustomisers:write

  Remove a customiser from the Store after the merchant has agreed to it.

• list_customiser_optionsreadcustomisers:read

  Discover what a customiser offers in one option family, and obtain the record ids the option read and write tools take.

• get_customiser_optionreadcustomisers:read

  Read the current values of one option record before patching it, and see which of its asset slots are filled.

• create_customiser_optionwritecustomisers:write

  Add one option a shopper can pick from — a colour, a font, a size, a mounting — to one customiser.

• update_customiser_optionwritecustomisers:write

  Change one option a shopper picks from, without touching the rest of its family.

• reorder_customiser_optionswritecustomisers:write

  Put one option family in the order the merchant wants shoppers to see.

• delete_customiser_optiondestructive writecustomisers:write

  Take one option off a customiser after the merchant has agreed to it.

• create_uploadwritecustomisers:write

  Reserve a staging target for one file, before attaching it to an option image, a font, a backboard shape or the storefront product image.

• get_uploadreadcustomisers:read

  Check whether a staged upload is ready to attach, or why it was rejected.

• attach_customiser_assetdestructive writecustomisers:write

  Put an uploaded file into one asset slot on one option record, or on the customiser labels document.

• delete_customiser_assetdestructive writecustomisers:write

  Take a file out of one asset slot, leaving the record itself in place.

• list_customiser_languagesreadcustomisers:read

  See which languages a customiser offers and how complete each translation is.

• get_customiser_languagereadcustomisers:read

  Read one language record, and read a bounded slice of its translation entries when the strings themselves are needed.

• get_customiser_pricingreadpricing:read

  Read the pricing rules a customiser applies, in the exact document shape a pricing replacement takes back.

• update_customiser_pricingwritepricing:write

  Change what a customiser charges: its rates, modifiers, minimums and rounding rules.

• list_integration_productsreadproducts:read

  See what customers have bought or configured, and obtain the product ids get_integration_product takes.

• get_integration_productreadproducts:read

  Read one product in full, and resolve the option ids its design captured back to the customiser configuration.

• create_integration_productwriteproducts:write

  Record a product bought through a custom integration against the customiser that designed it, so Sign Customiser can hand it to production.

• list_ordersreadorders:read

  Survey a Store trading activity and obtain the order ids get_order takes, without pulling customer data into the answer.

• get_orderreadorders:read

  Read one order end to end when the line items, totals or the customer snapshot are what the merchant asked about.

• create_orderdestructive writeorders:write

  Record an order bought through a custom integration, so Sign Customiser hands its designs to production.

• list_quotesreadquotes:read

  Count and locate shopper submissions, and obtain the ids get_quote takes, without pulling shopper free text into the answer.

• get_quotereadquotes:read

  Read what a shopper actually submitted when the merchant asks about one enquiry.

• list_webhook_event_typesreadwebhooks:read

  Find the exact topic string a webhook subscription needs, rather than guessing its spelling.

• list_webhook_subscriptionsreadwebhooks:read

  See where a Store already sends events, and obtain the subscription ids the update and delete tools take.

• get_webhook_subscriptionreadwebhooks:read

  Confirm where one subscription delivers and which topic it carries, before changing or deleting it.

• create_webhook_subscriptionwritewebhooks:write

  Point one Sign Customiser event topic at an endpoint the merchant runs.

• update_webhook_subscriptionwritewebhooks:write

  Move a subscription to another endpoint, or point it at a different event topic.

• delete_webhook_subscriptiondestructive writewebhooks:write

  Stop Sign Customiser delivering one event topic to one endpoint.

• search_operationsread

  Find the partner API operation that does what you need, and the exact arguments it takes, before running it through an executor.

• execute_readread

  Read anything the partner API exposes, including the parts no curated tool covers, without being able to change any of it.

• execute_createwrite

  Create anything the partner API can create, including the resources no curated tool covers, one operation per call.

• execute_updatewrite

  Change anything the partner API can change, including the resources no curated tool covers, one operation per call.

• execute_deletedestructive write

  Remove anything the partner API can remove, including the resources no curated tool covers, one operation per call.

Machine-readable resources

• Tool manifest · every tool's schemas, annotations, error cases and examples, as one JSON document.
• OpenAPI JSON · the public API contract these tools call.