# list_signals

Rank buying signals by timing × distinct signal types on the account. Person signals count toward their company. Dismissed signals do not add strength.

| | |
| --- | --- |
| Group | Buying signals |
| Scope | `crm:read` |
| Who can call it | Agents and people with this scope. |
| Kind | Read-only (MCP annotation `readOnlyHint: true`). |
| Retries | Safe to repeat. |
| Widget | In hosts that support MCP Apps, the result shows the ranked signal list. |

## Parameters

| Parameter | Type | Required | Notes |
| --- | --- | --- | --- |
| `id` | id (uuid) | no |  |
| `status` | `new` \\| `dismissed` \\| `converted` | no | default "new" |
| `type` | `complaint` \\| `post_engagement` \\| `hiring` \\| `job_change` \\| `funding` \\| `tech_adoption` \\| `headcount` \\| `news` \\| `ad` \\| `review` \\| `website_change` \\| `other` | no |  |
| `entity_id` | id (uuid) | no |  |
| `company_id` | id (uuid) | no |  |
| `since` | date-time (ISO 8601 with offset) | no |  |
| `limit` | integer | no | default 100, 1–200 |

## Call it over MCP

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "list_signals",
    "arguments": {}
  }
}
```

Send it to `https://api.tandemcrm.app/mcp` (streamable HTTP). Most people never write this by hand: their agent picks the tool from its description.

## Call it over REST

```bash
curl -X POST https://api.tandemcrm.app/v1/ops/list_signals \
  -H "Authorization: Bearer $TANDEM_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{}'
```

## Input schema

The JSON Schema the MCP server advertises for this tool:

```json
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "format": "uuid",
      "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$"
    },
    "status": {
      "default": "new",
      "type": "string",
      "enum": [
        "new",
        "dismissed",
        "converted"
      ]
    },
    "type": {
      "type": "string",
      "enum": [
        "complaint",
        "post_engagement",
        "hiring",
        "job_change",
        "funding",
        "tech_adoption",
        "headcount",
        "news",
        "ad",
        "review",
        "website_change",
        "other"
      ]
    },
    "entity_id": {
      "type": "string",
      "format": "uuid",
      "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$"
    },
    "company_id": {
      "type": "string",
      "format": "uuid",
      "pattern": "^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$"
    },
    "since": {
      "type": "string",
      "format": "date-time",
      "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$"
    },
    "limit": {
      "default": 100,
      "type": "integer",
      "minimum": 1,
      "maximum": 200
    }
  }
}
```