better-proposals

Better Proposals through One

A web-based platform that enables businesses to create, customize, send, and track professional sales proposals and contracts with interactive elements, e-signatures, and analytics to streamline client engagement and close deals faster.

One exposes Better Proposals through four MCP tools. The table below carries real action ids from One's knowledge base, so for a common operation you can skip search and go straight to reading the action's parameters.

How to run an action

1. Find the action in the table below, or call search_one_platform_actions with platform better-proposals if it is not listed.
2. Call get_one_action_knowledge with the action id. Do this every time, including for actions in this table. The table gives you the id, not the parameters.
3. Call execute_one_action with parameters copied from that knowledge.

Never guess a parameter name, a body field, or an enum value. The knowledge has the real schema, and a guessed field is either a 400 or a silent write of the wrong thing.

Before you start

Call list_one_integrations once and confirm Better Proposals is connected. If it is missing, the user has not connected it: say so and point them at https://app.withone.ai rather than reaching for raw HTTP.

Each connection carries an access field. If it reports {"policy": "methods", "methods": ["GET"]} the agent is read-only here, so plan a read-only answer instead of attempting a write that will be refused.

Before a write

Creates, updates, deletes and sends land on a real Better Proposals account and cannot be recalled. State the action and the specific target in one line before the first write in a task, and let the user stop you. Reads need no confirmation.

Actions

Proposals

Action	Method	Path	Action id
Count Proposals	GET	/proposal/count	conn_mod_def::GJt0qVU92Ag::Efx41lPUQW2YWEdyOcrHNQ
List New Proposals	GET	/proposal/new	conn_mod_def::GJt0pY8rKis::1NPVDqDaQg-2OkOrJi4aNw
List Proposals	GET	/proposal	conn_mod_def::GJt0pSKM8qI::VVWVLgScT3qY4wHVAfQJOw