API · Platform · Authorizations
Accept terms.
Record the principal's acceptance of the current published terms-of-service version. Required before any mutating call (createIntent, createFormationPacket, etc.) — those endpoints return a 409 terms_acceptance_required until the principal has an active acceptance. Read-only calls are not gated.
Last updated
Header Parameters
Idempotency-KeystringOptionalRequired for retries — 24h retention, token-scoped.
Request Body
application/json
TypeScript Definitions
Use the request body type in TypeScript.
terms_versionstringRequiredThe terms-of-service version being accepted. Server-validated against the current published version.
principal_idstringRequiredID of the human or agent principal accepting the terms.
channelstringOptionalSurface the acceptance happened on. Captured for audit.
One of
"chat""dashboard""embedded_partner"Response Body
application/json
application/problem+json
Request
curl -X POST "https://api.mattermode.com/v1/terms/accept" \ -H "Content-Type: application/json" \ -d '{ "terms_version": "string", "principal_id": "string" }'const body = JSON.stringify({ "terms_version": "string", "principal_id": "string"})fetch("https://api.mattermode.com/v1/terms/accept", { method: "POST", headers: { "Content-Type": "application/json" }, body})package mainimport ( "fmt" "net/http" "io/ioutil" "strings")func main() { url := "https://api.mattermode.com/v1/terms/accept" body := strings.NewReader(`{ "terms_version": "string", "principal_id": "string" }`) req, _ := http.NewRequest("POST", url, body) req.Header.Add("Content-Type", "application/json") 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", "Idempotency-Key": "ee7c3a9b-3f1a-4d8e-9b2a-7c5e1f0a2d4b",}payload = { "terms_version": "example", "principal_id": "example"}resp = requests.post( "https://api.mattermode.com/v1/terms/accept", headers=headers, json=payload,)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;import java.net.http.HttpRequest.BodyPublishers;var body = BodyPublishers.ofString("""{ "terms_version": "string", "principal_id": "string"}""");HttpClient client = HttpClient.newBuilder() .connectTimeout(Duration.ofSeconds(10)) .build();HttpRequest.Builder requestBuilder = HttpRequest.newBuilder() .uri(URI.create("https://api.mattermode.com/v1/terms/accept")) .header("Content-Type", "application/json") .POST(body) .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 body = new StringContent("""{ "terms_version": "string", "principal_id": "string"}""", Encoding.UTF8, "application/json");var client = new HttpClient();var response = await client.PostAsync("https://api.mattermode.com/v1/terms/accept", body);var responseBody = await response.Content.ReadAsStringAsync();curl --request POST 'https://api.mattermode.com/v1/terms/accept' \ --header 'Authorization: Bearer sk_test_4eC39HqLyjWDarjtT1zdp7dc' \ --header 'Matter-Version: 2026-06-10' \ --header 'Idempotency-Key: ee7c3a9b-3f1a-4d8e-9b2a-7c5e1f0a2d4b' \ --header 'Content-Type: application/json' \ --data '{ "terms_version": "example", "principal_id": "example"}'const response = await fetch("https://api.mattermode.com/v1/terms/accept", { method: "POST", headers: { "Authorization": "Bearer sk_test_4eC39HqLyjWDarjtT1zdp7dc", "Matter-Version": "2026-06-10", "Idempotency-Key": "ee7c3a9b-3f1a-4d8e-9b2a-7c5e1f0a2d4b", "Content-Type": "application/json", }, body: JSON.stringify({ "terms_version": "example", "principal_id": "example" }),});if (!response.ok) { throw new Error(`Matter API ${response.status}: ${await response.text()}`);}const data = await response.json();console.log(data);Response
application/json{
"acceptance_id": "string",
"terms_version": "string",
"accepted_at": "2019-08-24T14:15:22Z",
"channel": "chat",
"audit_entry_id": "string"
}{
"type": "https://mattermode.com/docs/errors/invalid_state_transition",
"title": "Invalid state transition",
"status": 409,
"detail": "Entity ent_Nq3KcAbc is in state `dissolved` and cannot be dissolved again.",
"instance": "/requests/req_Qw9xYz8A",
"code": "invalid_state_transition",
"param": "founders[0].equity",
"doc_url": "https://mattermode.com/docs/guides/errors#invalid_state_transition",
"request_id": "req_Qw9xYz8A",
"retry_after": 30,
"authorized_by": {
"human_principal_id": "usr_4Kj2m8pQ",
"agent_id": "agt_Nq3KcAbc"
}
}