classifier.dev
Sort up to 1,000 texts into your own labels with a calibrated confidence per answer. No API key.
Connect it
Settings → Connectors → Add custom connector
URL: https://classifier.dev/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://classifier.dev/mcp{
"mcpServers": {
"classifier": {
"url": "https://classifier.dev/mcp"
}
}
}claude mcp add --transport http classifier https://classifier.dev/mcp{
"servers": {
"classifier": {
"type": "http",
"url": "https://classifier.dev/mcp"
}
}
}5 tools, verified live
classify_textsSort up to 1,000 texts into exactly one of your own labels each, with confidence per answer. Use this when you have many items to triage, route, filter or bucket and do not want to read them all: search results before opening them, tickets, log lines, changed files, feedback. Do not use it for fewer than about five items you can already see — just decide. For default Jev, confidence is calibrated
classify_dimensionsClassify each text by several named dimensions, such as team, urgency and kind, in one request. Returns a label, confidence, scores and model for each field. At most 1,000 item × dimension decisions; every field counts toward the quota. Use per-dimension instructions to define ambiguous categories.
classify_multi_labelLike classify_texts, but each text gets every label that applies (possibly none), with an independent 0-1 score per label. Use this for tagging — topics of an article, components touched by a ticket — where one answer is not enough. Set max_labels to cap how many come back per text. Labels scoring >= 0.7 are kept.
count_labelsClassify up to 1,000 texts and return only a histogram: how many landed on each label, and how many the model was unsure about. Use this when you want the shape of a corpus — what share of feedback is bugs vs praise, how many search results are relevant — without pulling a thousand individual answers into context. Use classify_texts when you need the answer per item.
review_uncertainClassify up to 1,000 texts and return only the ones whose confidence fell under a threshold (default 0.7), each with its two most likely labels. Use this after a bulk classification to decide which items deserve your own attention: the confident answers can be trusted, these are the ones to read. Returns the index of each item so you can map back to your list.
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