io.usefulapiPublished by usefulapi.ioOfficial publisherv1.23.5Updated Nov 8, 2026
Read ClassMarker groups, links, exams and recent results; manage question bank and access codes.
The publisher's own server: Ably MCP by usefulapi
ClassMarker MCP by usefulapi's hosted MCP server (classmarker.usefulapi.io), published by usefulapi.io; no sign-in required; Streamable HTTP; 15 tools.
No AI overview yet: these facts come from the registry entry and the server itself.
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.
Read https://sourceweft.com/mcp/io.usefulapi%2Fclassmarker/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.Add this to your client's mcpServers config.
{
"mcpServers": {
"classmarker-by-usefulapi": {
"type": "http",
"url": "https://classmarker.usefulapi.io/mcp"
}
}
}Use ClassMarker from Claude, Cursor, or any MCP client — groups, links, exams, recent results, categories and the question bank, plus access codes. Hosted, no local install: connect with your own ClassMarker credentials.
Live endpoint: https://classmarker.usefulapi.io/mcp · Homepage: https://usefulapi.io/classmarker
https://classmarker.usefulapi.io/mcp.claude mcp add --transport http classmarker https://classmarker.usefulapi.io/mcp, then run /mcp to log in.Add only the URL. Do not add an Authorization header or an API key to the client config: the server signs you in with OAuth, and the login page asks for your ClassMarker credentials.
Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/classmarker/
read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.
*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to [email protected].
Pro covers this server only. Subscribe with classmarker_upgrade (it returns a Stripe Checkout link). Cancel any time with classmarker_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running classmarker_upgrade before then undoes the cancel. Or write to [email protected].
MIT © usefulapi. Not affiliated with or endorsed by ClassMarker.
Source: servers/classmarker/README.md at commit 4046075
List groups, links and exams
List the groups, links and exams (tests) this API key can access, with the ids the other tools need (group_id, link_id, link_url_id, test_id, and access_list_id for links with an access-code list). Good first call. Counts as one of ClassMarker's 30 requests per hour per API key. API: GET /v1.json.
Takes no parameters.
Recent results across all groups
Recent finished test results taken in the key's groups (all groups, all exams), oldest first, PAGED by finish time: test-taker name, email, score, percentage, pass/fail, timing, certificate. Contains personal data: use small pages. Max look-back 3 months. Counts as one of ClassMarker's 30 requests per hour per API key. API: GET /v1/groups/recent_results.json.
limitinclude_monitor_eventsfinished_after_timestampRecent results across all links
Recent finished test results taken through the key's links (all links, all exams), oldest first, PAGED by finish time: test-taker name, email, score, pass/fail, timing, access code, extra tracking fields, IP address, certificate. Contains personal data: use small pages. Max look-back 3 months. Counts as one of ClassMarker's 30 requests per hour per API key. API: GET /v1/links/recent_results.json.
limitinclude_monitor_eventsfinished_after_timestampRecent results for one group exam
Recent finished results for ONE exam in ONE group (ids from classmarker_list_groups_links_exams), oldest first, PAGED by finish time. Contains personal data: use small pages. Counts as one of ClassMarker's 30 requests per hour per API key. API: GET /v1/groups/{group_id}/tests/{test_id}/recent_results.json.
limittest_idrequiredgroup_idrequiredinclude_monitor_eventsfinished_after_timestampRecent results for one link exam
Recent finished results for the exam of ONE link (ids from classmarker_list_groups_links_exams), oldest first, PAGED by finish time. Contains personal data: use small pages. Counts as one of ClassMarker's 30 requests per hour per API key. API: GET /v1/links/{link_id}/tests/{test_id}/recent_results.json.
limitlink_idrequiredtest_idrequiredinclude_monitor_eventsfinished_after_timestampList question categories
List the question-bank categories with their parent categories and ids (needed for creating and updating questions). Counts as one of ClassMarker's 30 requests per hour per API key. API: GET /v1/categories.json.
Takes no parameters.
List question-bank questions
List the questions of the question bank, 200 per page (page 1, 2, ...): question text, type, category, points, options, correct options, status. A full page means more may follow, so ask for the next page. Counts as one of ClassMarker's 30 requests per hour per API key. API: GET /v1/questions.json?page=N.
pageGet a question
Get one question-bank question by id (ids from classmarker_list_questions). Counts as one of ClassMarker's 30 requests per hour per API key. API: GET /v1/questions/{question_id}.json.
question_idrequiredAdd access codes to a list
WRITE: add access codes (1-100 per call, up to 255 characters each; a list holds at most 20,000) to a link's access-code list, so those people can start the exam. The access_list_id comes from classmarker_list_groups_links_exams (links[].access_list_id). Only adds; removing codes is not offered. Does not count against the 30 requests per hour limit. API: POST /v1/accesslists/{access_list_id}.json.
codesrequiredaccess_list_idrequiredCreate a parent category
WRITE: create a new top-level question category. Returns its parent_category_id. Counts as one of ClassMarker's 30 requests per hour per API key. API: POST /v1/categories/parent_category.json.
parent_category_namerequiredRename a parent category
WRITE: rename an existing parent category (overwrites its name). Counts as one of ClassMarker's 30 requests per hour per API key. API: PUT /v1/categories/parent_category/{parent_category_id}.json.
parent_category_idrequiredparent_category_namerequiredCreate a category
WRITE: create a question category under a parent category. Returns its category_id. Counts as one of ClassMarker's 30 requests per hour per API key. API: POST /v1/categories/category.json.
category_namerequiredparent_category_idrequiredUpdate a category
WRITE: rename a category and/or move it to another parent (overwrites both fields: send the name and parent_category_id you want it to have). Counts as one of ClassMarker's 30 requests per hour per API key. API: PUT /v1/categories/category/{category_id}.json.
category_idrequiredcategory_namerequiredparent_category_idrequiredCreate a question
WRITE: add a new question to the question bank. Only multiplechoice, multipleresponse, truefalse and essay can be created. Returns the new question_id. For truefalse, give only correct_options ["A"] (True) or ["B"] (False). Counts as one of ClassMarker's 30 requests per hour per API key. API: POST /v1/questions.json.
pointsoptionsquestionrequiredcategory_idgrade_stylequestion_typerequiredrandom_answerscorrect_optionscorrect_feedbackincorrect_feedbackUpdate a question
WRITE (overwrites): replace an existing question-bank question. Send the COMPLETE question (type, text, options, correct options, points, feedback), not only the changed fields; read it first with classmarker_get_question. Only multiplechoice, multipleresponse, truefalse and essay questions can be updated. Counts as one of ClassMarker's 30 requests per hour per API key. API: PUT /v1/questions/{question_id}.json.
pointsoptionsquestionrequiredcategory_idgrade_stylequestion_idrequiredquestion_typerequiredrandom_answerscorrect_optionscorrect_feedbackincorrect_feedback100% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
io.usefulapiOfficial publisher
Ably MCP by usefulapi's hosted MCP server, published by usefulapi.io; no sign-in required; Streamable HTTP; 15 tools.
io.usefulapiOfficial publisher
Hosted read-only MCP server that lets an assistant read Tiltify campaigns, donations and top donor and fundraiser leaderboards.
io.usefulapiOfficial publisher
Hosted Termii server that lets an assistant send SMS, check wallet balance, DND status, sender IDs and message history.
io.usefulapiOfficial publisher
Hosted MCP server that lets an assistant read Temp Stick temperature and humidity sensors, their readings and alert notifications.
io.usefulapiOfficial publisher
Connects an assistant to a Stibee email marketing workspace to read address books, subscribers and email stats, and to add subscribers and group members.
{ "mcpServers": { "classmarker": { "url": "https://classmarker.usefulapi.io/mcp" } }}