---
title: "tool si.act.settle"
description: "a hypothesis, the standing, the caller: the hypothesis settled, with who settled it and on what."
section: reference
address: /reference/tools/si-act-settle
contract: 0476e35e6e275db5
---

# tool si.act.settle

a hypothesis, the standing, the caller: the hypothesis settled, with who settled it and on what.

[figure: Over MCP, si.act.settle takes SettleInput and returns a card whose body is Hypothesis.]

the hypothesis settled, with who settled it and on what. The call needs the act grant at the strategy rung.



| | |
|---|---|
| input | [SettleInput](/concepts/settleinput) |
| result | a card whose body is [Hypothesis](/concepts/hypothesis) |
| read-only | no |
| destructive | yes |
| card address | `ui://scale-intelligence/cards/Hypothesis` |
| HTTP route | [`/v1/act/settle`](/reference/act/settle) |





| field | type | required | note |
|---|---|---|---|
| `hypothesis` | `id` | yes |  |
| `standing` | `one of supported \| refuted \| cannot tell \| under test` | yes |  |
| `on` | `text` | yes | what it was settled on |