API · Entities
List boievaluations.
List the entity's BOI (Beneficial Ownership Information) evaluations. Triggered automatically by cap-table changes (SAFE issued, convertible note issued, officer change, director change) and on demand via the boi_evaluation routine. Each evaluation outputs no_change (with a plain-English no_change_confirmation), filed_update (with boir_submission.sub_agent_session_id linking to the FinCEN BOIR sub-agent), or deferred.
Use this endpoint to surface BOI history on the founder compliance dashboard, to audit "did we file BOIR after Sasha became a director?", or to confirm a no_change outcome after a small-check SAFE.
Filter via ?since=<ISO timestamp> to retrieve only evaluations triggered after a known cutoff (e.g., the last time the dashboard polled).
Errors: 400, 401, 404, 429. See errors for the RFC 7807 envelope and per-code recovery guidance.
Last updated
Query Parameters
sincestring<date-time>OptionalFilter to evaluations triggered after this timestamp.
Response Body
application/json
Request
curl -X GET "https://api.mattermode.com/v1/entities/{id}/boi_evaluations"fetch("https://api.mattermode.com/v1/entities/{id}/boi_evaluations", { method: "GET"})package mainimport ( "fmt" "net/http" "io/ioutil")func main() { url := "https://api.mattermode.com/v1/entities/{id}/boi_evaluations" req, _ := http.NewRequest("GET", url, nil) res, _ := http.DefaultClient.Do(req) defer res.Body.Close() body, _ := ioutil.ReadAll(res.Body) fmt.Println(res) fmt.Println(string(body))}import requestsheaders = { "Authorization": "Bearer sk_test_4eC39HqLyjWDarjtT1zdp7dc", "Matter-Version": "2026-06-10",}resp = requests.get( "https://api.mattermode.com/v1/entities/ent_Nq3KcAbc/boi_evaluations", headers=headers,)resp.raise_for_status()print(resp.json())import java.net.URI;import java.net.http.HttpClient;import java.net.http.HttpRequest;import java.net.http.HttpResponse;import java.net.http.HttpResponse.BodyHandlers;import java.time.Duration;HttpClient client = HttpClient.newBuilder() .connectTimeout(Duration.ofSeconds(10)) .build();HttpRequest.Builder requestBuilder = HttpRequest.newBuilder() .uri(URI.create("https://api.mattermode.com/v1/entities/{id}/boi_evaluations")) .GET() .build();try { HttpResponse<String> response = client.send(requestBuilder.build(), BodyHandlers.ofString()); System.out.println("Status code: " + response.statusCode()); System.out.println("Response body: " + response.body());} catch (Exception e) { e.printStackTrace();}using System;using System.Net.Http;using System.Text;var client = new HttpClient();var response = await client.GetAsync("https://api.mattermode.com/v1/entities/{id}/boi_evaluations");var responseBody = await response.Content.ReadAsStringAsync();curl --request GET 'https://api.mattermode.com/v1/entities/ent_Nq3KcAbc/boi_evaluations' \ --header 'Authorization: Bearer sk_test_4eC39HqLyjWDarjtT1zdp7dc' \ --header 'Matter-Version: 2026-06-10'const response = await fetch("https://api.mattermode.com/v1/entities/ent_Nq3KcAbc/boi_evaluations", { method: "GET", headers: { "Authorization": "Bearer sk_test_4eC39HqLyjWDarjtT1zdp7dc", "Matter-Version": "2026-06-10", },});if (!response.ok) { throw new Error(`Matter API ${response.status}: ${await response.text()}`);}const data = await response.json();console.log(data);Response
200BOI evaluation history.
application/json{
"evaluations": [
{
"id": "string",
"triggered_at": "2019-08-24T14:15:22Z",
"trigger_kind": "safe_issued",
"triggered_by_resource_id": "string",
"outcome": "filed_update",
"no_change_confirmation": "string",
"boir_filing_id": "string",
"fincen_reference": "string",
"substantial_control_test": {
"passed": true,
"rationale": "string",
"evaluated_stakeholders": [
{
"stakeholder_id": "string",
"ownership_pct": 0,
"has_substantial_control": true
}
]
},
"boir_submission": {
"sub_agent_session_id": "string",
"submitted_at": "2019-08-24T14:15:22Z",
"fincen_acknowledgement": "string"
}
}
]
}