API · Manage · Equity

Create a share class.

Define a class of stock the entity can issue — common, preferred, or a numbered preferred series. The share class fixes the economic and governance terms (par_value, liquidation_preference, conversion_rights, voting_rights) that flow through to every grant and ledger entry against it.

Called at three points: at formation (one common class only), at the closing of every priced round (a new preferred series — Series Seed, Series A, etc.), and on a recapitalization (an amended class with new conversion or liquidation terms). The Certificate of Designations is generated and attached as certificate_of_designations_document_id; for non-Delaware jurisdictions the equivalent constitutive document is produced.

Share class kinds (kind) - common — voting common stock. Required for grants of iso, nso, rsu, rsa. Liquidation last in priority. - preferred — investor stock with a series label and structured liquidation_preference (multiple, participation), conversion_rights (ratio, automatic and optional triggers), and voting_rights (per-share or as-converted, protective provisions).

Prerequisites - Entity must be in registered or active state. - For a preferred series, an adopting board and stockholder resolution (or written consent) must already exist or be authored in the same transaction via resolution_id. - authorized must not exceed the entity's total authorized shares; expand the certificate of incorporation first if it does (POST /entities/{id}/filings with type: amendment).

Returns 202 Accepted. On completion, emits one of: grant.issued, share_class.created, valuation.created, share_ledger.entry_recorded. Subscribe via `POST /v1/webhook_endpoints` to consume. Idempotent via Idempotency-Key. See idempotency.

Last updated Jun 14, 2026

Request Body

application/json

TypeScript Definitions

Use the request body type in TypeScript.

namestringRequired

kindstringRequired

One of"common""preferred"

seriesstringOptional

authorizedintegerRequired

par_valueobjectRequired

Currency amount in the smallest unit (cents for USD).

amountintegerRequired

Integer in smallest unit. 100 = USD 1.00.

currencystringRequired

ISO 4217 alpha-3, lower-cased.

liquidation_preferencenumberOptional

Response Body

`application/json`

`application/problem+json`

Request

curl -X POST "https://api.mattermode.com/v1/entities/{id}/share_classes" \  -H "Content-Type: application/json" \  -d '{    "name": "Waypoint Systems, Inc.",    "kind": "common",    "series": "string",    "authorized": 1,    "par_value": {      "amount": 50000,      "currency": "usd"    },    "liquidation_preference": 0  }'

const body = JSON.stringify({  "name": "Waypoint Systems, Inc.",  "kind": "common",  "series": "string",  "authorized": 1,  "par_value": {    "amount": 50000,    "currency": "usd"  },  "liquidation_preference": 0})fetch("https://api.mattermode.com/v1/entities/{id}/share_classes", {  method: "POST",  headers: {    "Content-Type": "application/json"  },  body})

package mainimport (  "fmt"  "net/http"  "io/ioutil"  "strings")func main() {  url := "https://api.mattermode.com/v1/entities/{id}/share_classes"  body := strings.NewReader(`{    "name": "Waypoint Systems, Inc.",    "kind": "common",    "series": "string",    "authorized": 1,    "par_value": {      "amount": 50000,      "currency": "usd"    },    "liquidation_preference": 0  }`)  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 = {    "name": "Waypoint Systems, Inc.",    "kind": "common",    "series": "string",    "authorized": 1,    "par_value": {        "amount": 50000,        "currency": "usd"    },    "liquidation_preference": 0}resp = requests.post(    "https://api.mattermode.com/v1/entities/ent_Nq3KcAbc/share_classes",    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("""{  "name": "Waypoint Systems, Inc.",  "kind": "common",  "series": "string",  "authorized": 1,  "par_value": {    "amount": 50000,    "currency": "usd"  },  "liquidation_preference": 0}""");HttpClient client = HttpClient.newBuilder()  .connectTimeout(Duration.ofSeconds(10))  .build();HttpRequest.Builder requestBuilder = HttpRequest.newBuilder()  .uri(URI.create("https://api.mattermode.com/v1/entities/{id}/share_classes"))  .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("""{  "name": "Waypoint Systems, Inc.",  "kind": "common",  "series": "string",  "authorized": 1,  "par_value": {    "amount": 50000,    "currency": "usd"  },  "liquidation_preference": 0}""", Encoding.UTF8, "application/json");var client = new HttpClient();var response = await client.PostAsync("https://api.mattermode.com/v1/entities/{id}/share_classes", body);var responseBody = await response.Content.ReadAsStringAsync();

curl --request POST 'https://api.mattermode.com/v1/entities/ent_Nq3KcAbc/share_classes' \  --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 '{  "name": "Waypoint Systems, Inc.",  "kind": "common",  "series": "string",  "authorized": 1,  "par_value": {    "amount": 50000,    "currency": "usd"  },  "liquidation_preference": 0}'

const response = await fetch("https://api.mattermode.com/v1/entities/ent_Nq3KcAbc/share_classes", {  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({    "name": "Waypoint Systems, Inc.",    "kind": "common",    "series": "string",    "authorized": 1,    "par_value": {      "amount": 50000,      "currency": "usd"    },    "liquidation_preference": 0  }),});if (!response.ok) {  throw new Error(`Matter API ${response.status}: ${await response.text()}`);}const data = await response.json();console.log(data);

Response

application/json

{
  "id": "string",
  "object": "share_class",
  "entity_id": "ent_Nq3KcAbc",
  "name": "Common Stock",
  "kind": "common",
  "series": "Series Seed",
  "authorized": 0,
  "issued": 0,
  "par_value": {
    "amount": 50000,
    "currency": "usd"
  },
  "liquidation_preference": 0,
  "conversion_rights": {},
  "voting_rights": {},
  "certificate_of_designations_document_id": "string",
  "metadata": {},
  "created": 1745539200,
  "updated": 1745539200,
  "livemode": false
}

{
  "type": "https://mattermode.com/docs/errors/invalid_request",
  "title": "Invalid request",
  "status": 400,
  "code": "invalid_request",
  "detail": "Request body could not be parsed as JSON.",
  "doc_url": "https://mattermode.com/docs/guides/errors#invalid_request",
  "request_id": "req_Qw9xYz8A"
}

{
  "type": "https://mattermode.com/docs/errors/authentication_required",
  "title": "Authentication required",
  "status": 401,
  "code": "authentication_required",
  "detail": "No bearer token was supplied. Pass `Authorization: Bearer sk_live_...` on every request.",
  "doc_url": "https://mattermode.com/docs/guides/errors#authentication_required",
  "request_id": "req_Qw9xYz8A"
}

{
  "type": "https://mattermode.com/docs/errors/rate_limit_exceeded",
  "title": "Rate limit exceeded",
  "status": 429,
  "code": "rate_limit_exceeded",
  "detail": "Request rate exceeded for this key. Retry after `retry_after` seconds or honor the `Retry-After` header.",
  "doc_url": "https://mattermode.com/docs/guides/errors#rate_limit_exceeded",
  "request_id": "req_Qw9xYz8A",
  "retry_after": 30
}

Create a share class.

Last updated Jun 14, 2026

Request Body

application/json

TypeScript Definitions

Use the request body type in TypeScript.

namestringRequired

kindstringRequired

One of"common""preferred"

seriesstringOptional

authorizedintegerRequired

par_valueobjectRequired

Currency amount in the smallest unit (cents for USD).

amountintegerRequired

Integer in smallest unit. 100 = USD 1.00.

currencystringRequired

ISO 4217 alpha-3, lower-cased.

liquidation_preferencenumberOptional

Response Body

`application/json`

`application/problem+json`

Request

curl -X POST "https://api.mattermode.com/v1/entities/{id}/share_classes" \  -H "Content-Type: application/json" \  -d '{    "name": "Waypoint Systems, Inc.",    "kind": "common",    "series": "string",    "authorized": 1,    "par_value": {      "amount": 50000,      "currency": "usd"    },    "liquidation_preference": 0  }'

const body = JSON.stringify({  "name": "Waypoint Systems, Inc.",  "kind": "common",  "series": "string",  "authorized": 1,  "par_value": {    "amount": 50000,    "currency": "usd"  },  "liquidation_preference": 0})fetch("https://api.mattermode.com/v1/entities/{id}/share_classes", {  method: "POST",  headers: {    "Content-Type": "application/json"  },  body})

package mainimport (  "fmt"  "net/http"  "io/ioutil"  "strings")func main() {  url := "https://api.mattermode.com/v1/entities/{id}/share_classes"  body := strings.NewReader(`{    "name": "Waypoint Systems, Inc.",    "kind": "common",    "series": "string",    "authorized": 1,    "par_value": {      "amount": 50000,      "currency": "usd"    },    "liquidation_preference": 0  }`)  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 = {    "name": "Waypoint Systems, Inc.",    "kind": "common",    "series": "string",    "authorized": 1,    "par_value": {        "amount": 50000,        "currency": "usd"    },    "liquidation_preference": 0}resp = requests.post(    "https://api.mattermode.com/v1/entities/ent_Nq3KcAbc/share_classes",    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("""{  "name": "Waypoint Systems, Inc.",  "kind": "common",  "series": "string",  "authorized": 1,  "par_value": {    "amount": 50000,    "currency": "usd"  },  "liquidation_preference": 0}""");HttpClient client = HttpClient.newBuilder()  .connectTimeout(Duration.ofSeconds(10))  .build();HttpRequest.Builder requestBuilder = HttpRequest.newBuilder()  .uri(URI.create("https://api.mattermode.com/v1/entities/{id}/share_classes"))  .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("""{  "name": "Waypoint Systems, Inc.",  "kind": "common",  "series": "string",  "authorized": 1,  "par_value": {    "amount": 50000,    "currency": "usd"  },  "liquidation_preference": 0}""", Encoding.UTF8, "application/json");var client = new HttpClient();var response = await client.PostAsync("https://api.mattermode.com/v1/entities/{id}/share_classes", body);var responseBody = await response.Content.ReadAsStringAsync();

curl --request POST 'https://api.mattermode.com/v1/entities/ent_Nq3KcAbc/share_classes' \  --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 '{  "name": "Waypoint Systems, Inc.",  "kind": "common",  "series": "string",  "authorized": 1,  "par_value": {    "amount": 50000,    "currency": "usd"  },  "liquidation_preference": 0}'

const response = await fetch("https://api.mattermode.com/v1/entities/ent_Nq3KcAbc/share_classes", {  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({    "name": "Waypoint Systems, Inc.",    "kind": "common",    "series": "string",    "authorized": 1,    "par_value": {      "amount": 50000,      "currency": "usd"    },    "liquidation_preference": 0  }),});if (!response.ok) {  throw new Error(`Matter API ${response.status}: ${await response.text()}`);}const data = await response.json();console.log(data);

Response

application/json

{
  "id": "string",
  "object": "share_class",
  "entity_id": "ent_Nq3KcAbc",
  "name": "Common Stock",
  "kind": "common",
  "series": "Series Seed",
  "authorized": 0,
  "issued": 0,
  "par_value": {
    "amount": 50000,
    "currency": "usd"
  },
  "liquidation_preference": 0,
  "conversion_rights": {},
  "voting_rights": {},
  "certificate_of_designations_document_id": "string",
  "metadata": {},
  "created": 1745539200,
  "updated": 1745539200,
  "livemode": false
}

{
  "type": "https://mattermode.com/docs/errors/invalid_request",
  "title": "Invalid request",
  "status": 400,
  "code": "invalid_request",
  "detail": "Request body could not be parsed as JSON.",
  "doc_url": "https://mattermode.com/docs/guides/errors#invalid_request",
  "request_id": "req_Qw9xYz8A"
}

{
  "type": "https://mattermode.com/docs/errors/authentication_required",
  "title": "Authentication required",
  "status": 401,
  "code": "authentication_required",
  "detail": "No bearer token was supplied. Pass `Authorization: Bearer sk_live_...` on every request.",
  "doc_url": "https://mattermode.com/docs/guides/errors#authentication_required",
  "request_id": "req_Qw9xYz8A"
}

{
  "type": "https://mattermode.com/docs/errors/rate_limit_exceeded",
  "title": "Rate limit exceeded",
  "status": 429,
  "code": "rate_limit_exceeded",
  "detail": "Request rate exceeded for this key. Retry after `retry_after` seconds or honor the `Retry-After` header.",
  "doc_url": "https://mattermode.com/docs/guides/errors#rate_limit_exceeded",
  "request_id": "req_Qw9xYz8A",
  "retry_after": 30
}

Create a share class.

Request Body

Response Body

202application/json

400application/problem+json

401application/problem+json

429application/problem+json

Create a share class.

Request Body

Response Body

202application/json

400application/problem+json

401application/problem+json

429application/problem+json

`application/json`

`application/problem+json`

`application/problem+json`

`application/problem+json`

`application/json`

`application/problem+json`

`application/problem+json`

`application/problem+json`