The repository does not have a GitHub Pages site. See https://docs.github.com/v3/repos/pages/ - jekyll

Question

I have a Jekyll site published to Github Pages. I am trying to use the Github API to be able to schedule posts.
I can "Get a Github Pages site" with the API, https://docs.github.com/en/rest/pages?apiVersion=2022-11-28#get-a-github-pages-site
When I try to test the Github API for "Request a Github Pages build," it gives me the following error:
curl
-X POST
-H "Accept: application/vnd.github+json"
-H "Authorization: Bearer $Classic_Personal_Access_Token_with_all_permissions_for_testing"
-H "X-GitHub-Api-Version: 2022-11-28"
https://api.github.com/repos/aykchoe/aykchoe.github.io/pages/builds -vv
Trying 192.30.255.116:443...
Connected to api.github.com (192.30.255.116) port 443 (#0)
ALPN: offers h2
ALPN: offers http/1.1
CAfile: /etc/ssl/cert.pem
CApath: none
(304) (OUT), TLS handshake, Client hello (1):
(304) (IN), TLS handshake, Server hello (2):
(304) (IN), TLS handshake, Unknown (8):
(304) (IN), TLS handshake, Certificate (11):
(304) (IN), TLS handshake, CERT verify (15):
(304) (IN), TLS handshake, Finished (20):
(304) (OUT), TLS handshake, Finished (20):
SSL connection using TLSv1.3 / AEAD-CHACHA20-POLY1305-SHA256
ALPN: server accepted h2
Server certificate:
subject: C=US; ST=California; L=San Francisco; O=GitHub, Inc.; CN=.github.com
start date: Mar 16 00:00:00 2022 GMT
expire date: Mar 16 23:59:59 2023 GMT
subjectAltName: host "api.github.com" matched cert's ".github.com"
issuer: C=US; O=DigiCert Inc; CN=DigiCert TLS Hybrid ECC SHA384 2020 CA1
SSL certificate verify ok.
Using HTTP2, server supports multiplexing
Copying HTTP/2 data in stream buffer to connection buffer after upgrade: len=0
h2h3 [:method: POST]
h2h3 [:path: /repos/aykchoe/aykchoe.github.io/pages/builds]
h2h3 [:scheme: https]
h2h3 [:authority: api.github.com]
h2h3 [user-agent: curl/7.85.0]
h2h3 [accept: application/vnd.github+json]
h2h3 [authorization: Bearer $Classic_Personal_Access_Token_with_all_permissions_for_testing]
h2h3 [x-github-api-version: 2022-11-28]
Using Stream ID: 1 (easy handle 0x15600d800)
POST /repos/aykchoe/aykchoe.github.io/pages/builds HTTP/2
Host: api.github.com
user-agent: curl/7.85.0
accept: application/vnd.github+json
authorization: Bearer $Classic_Personal_Access_Token_with_all_permissions_for_testing
x-github-api-version: 2022-11-28
HTTP/2 403
server: GitHub.com
date: Sat, 14 Jan 2023 03:49:29 GMT
content-type: application/json; charset=utf-8
content-length: 203
x-oauth-scopes: admin:enterprise, admin:gpg_key, admin:org, admin:org_hook, admin:public_key, admin:repo_hook, admin:ssh_signing_key, audit_log, codespace, delete:packages, delete_repo, gist, notifications, project, repo, user, workflow, write:discussion, write:packages
x-accepted-oauth-scopes:
github-authentication-token-expiration: 2023-02-13 03:44:38 UTC
x-github-media-type: github.v3; format=json
x-github-api-version-selected: 2022-11-28
x-ratelimit-limit: 5000
x-ratelimit-remaining: 4996
x-ratelimit-reset: 1673671506
x-ratelimit-used: 4
x-ratelimit-resource: core
access-control-expose-headers: ETag, Link, Location, Retry-After, X-GitHub-OTP, X-RateLimit-Limit, X-RateLimit-Remaining, X-RateLimit-Used, X-RateLimit-Resource, X-RateLimit-Reset, X-OAuth-Scopes, X-Accepted-OAuth-Scopes, X-Poll-Interval, X-GitHub-Media-Type, X-GitHub-SSO, X-GitHub-Request-Id, Deprecation, Sunset
access-control-allow-origin: *
strict-transport-security: max-age=31536000; includeSubdomains; preload
x-frame-options: deny
x-content-type-options: nosniff
x-xss-protection: 0
referrer-policy: origin-when-cross-origin, strict-origin-when-cross-origin
content-security-policy: default-src 'none'
vary: Accept-Encoding, Accept, X-Requested-With
x-github-request-id: C127:4B9A:5325FBA:5629D14:63C22649
{
"message": "The repository does not have a GitHub Pages site. See https://docs.github.com/v3/repos/pages/",
"documentation_url": "https://docs.github.com/rest/pages#request-a-github-pages-build"
}
Connection #0 to host api.github.com left intact
From Googling, it seems like a permissions error (http 403), but not sure what I could be missing.
I tried both fine-grain token and classic.
I noticed my git user was different than the repo owner, so I added it as a collaborator.
I tried switching the git user to the repo owner.
I tried making a new Jekyll repo with Github Pages and running the API code.