# Hypothesis programs: create, get, list

URL: /code/mcp/hypothesis/records · Id: `page:code/mcp/hypothesis/records`

> The Hypothesis Verbs create, get, list as MCP do programs, with inputs, result, refusals and an example.

Reference for [Hypothesis](/business/nouns/hypothesis), one group of [Hypothesis programs](/code/mcp/hypothesis).

### Hypothesis.create
Creates a Hypothesis. [Verb page](/business/nouns/hypothesis/create?interface=mcp).

```text
do: return await $.Hypothesis.create(input)
```

Emits `Hypothesis.created`.

**Inputs**

| Input | Type | Required | Description |
| --- | --- | --- | --- |
| `statement` | `text` | Yes | The belief, in one sentence. |
| `kind` | `string` | Yes | One of `founding`, the five slots (`customer`, `problem`, `approach`, `switch`, `differentiation`), or `loop`. |
| `parent` | [Hypothesis](/business/nouns/hypothesis) | No | The Founding Hypothesis a slot Hypothesis belongs to. |
| `metric` | [Metric](/business/nouns/metric) | No | The Metric that settles it. |
| `threshold` | `string` | No | The Metric value that settles it. |
| `grade` | `string` | No | Computed: the strongest grade of its outside Evidence, `None` without any. |

**Returns**

| Output | Type | Required | Description |
| --- | --- | --- | --- |
| `hypothesis` | [Hypothesis](/business/nouns/hypothesis) | Yes | The Hypothesis. |

**Refuses when**

| Check | Error | Fix | Then call |
| --- | --- | --- | --- |
| The key is valid, but its scopes do not allow this operation. | [`forbidden`](/code/api/errors/forbidden) | Use a key whose scopes cover the operation, or ask an owner of the namespace to grant them. | None. |

**Example**

```json
{
  "name": "do",
  "arguments": {
    "code": "return await $.Hypothesis.create({ statement: 'Tracks lease renewals for small property managers.', kind: 'founding' })"
  }
}
```

### Hypothesis.get
Returns one Hypothesis by id. [Verb page](/business/nouns/hypothesis/get?interface=mcp).

```text
do: return await $.Hypothesis.get(input)
```

Reads only: it emits no Event.

**Inputs**

| Input | Type | Required | Description |
| --- | --- | --- | --- |
| `id` | `string` | Yes | The id of the Hypothesis. |
| `at` | `string` | No | A time or Version name: the record as it stood then. Unset: as it stands now. |

**Returns**

| Output | Type | Required | Description |
| --- | --- | --- | --- |
| `hypothesis` | [Hypothesis](/business/nouns/hypothesis) | Yes | The Hypothesis. |

**Refuses when**

| Check | Error | Fix | Then call |
| --- | --- | --- | --- |
| The key is valid, but its scopes do not allow this operation. | [`forbidden`](/code/api/errors/forbidden) | Use a key whose scopes cover the operation, or ask an owner of the namespace to grant them. | None. |

**Example**

```json
{
  "name": "do",
  "arguments": {
    "code": "return await $.Hypothesis.get({ id: 'hypothesis_Z1gjx1kbtc' })"
  }
}
```

### Hypothesis.list
Returns Hypotheses, newest first, one page at a time. [Verb page](/business/nouns/hypothesis/list?interface=mcp).

```text
do: return await $.Hypothesis.list(input)
```

Reads only: it emits no Event.

**Inputs**

| Input | Type | Required | Description |
| --- | --- | --- | --- |
| `limit` | `integer` | No | At most this many records, up to 100. The default is 20. |
| `after` | `string` | No | The cursor from the previous page. |
| `where` | `string` | No | A filter over the properties, such as `paidAt = null and total.amount > 500`. |
| `sort` | `string` | No | Properties to sort by, comma-separated; a leading minus sorts descending. |
| `total` | `boolean` | No | True adds the match count as `meta.total`, exact up to 10,000 matches and estimated above. |
| `facets` | `string` | No | Properties to count by value, comma-separated, returned as `meta.facets`. |
| `fields` | `string` | No | Properties to return on each record, comma-separated; `$id` and `$type` always return. |
| `include` | `string` | No | Related records to embed in place of their URLs, comma-separated. |
| `depth` | `integer` | No | How many levels of related records to embed. The default is 1. |
| `q` | `string` | No | Words to match across the text properties, ranked by relevance. |
| `match` | `string` | No | Ranks the search by `words`, or `meaning`; words is the default. |

**Returns**

| Output | Type | Required | Description |
| --- | --- | --- | --- |
| `hypotheses` | list of [Hypothesis](/business/nouns/hypothesis) | Yes | One page of Hypotheses. |

**Refuses when**

| Check | Error | Fix | Then call |
| --- | --- | --- | --- |
| The key is valid, but its scopes do not allow this operation. | [`forbidden`](/code/api/errors/forbidden) | Use a key whose scopes cover the operation, or ask an owner of the namespace to grant them. | None. |

**Example**

```json
{
  "name": "do",
  "arguments": {
    "code": "return await $.Hypothesis.list({ limit: 20 })"
  }
}
```