AI & Machine Learning

classifier.dev

MCP server for text classification that sorts texts into custom labels with confidence scores, multi-label support, label histograms, uncertainty review, and classifier listing.

2 endpoints8 known toolsFirst detected September 19, 2026Last detected September 19, 2026

ENDPOINT 1

https://classifier.dev/mcp

No auth detected

MCP server metadata

Name: classifier.dev
Version: 1.0.0

Capabilities

tools

Server instructions

classifier.dev sorts text into labels you name, many texts per call, with a calibrated confidence on every answer. Use classify_texts for one label per text, classify_multi_label when several can apply, count_labels for a histogram over a corpus, and review_uncertain to pull out only the answers worth a human (or your own) look. Reach for it when reading the inputs is the expensive part: forty search results, a thousand log lines, a backlog of tickets. Under about five items you can already see, just decide yourself. Labels are free text; descriptive names classify better. No key is needed. Limits per IP: 3,000 classifications/min on fast, 200/min on smart; a 429 says how long to wait. Docs: https://classifier.dev — the docs are also an MCP server at https://classifier.dev/mcp/docs.

Known tools 4

classify_texts

Sort up to 1,000 texts into exactly one of your own labels each, with a calibrated confidence per answer.

Inferred read-only

classify_multi_label

Like classify_texts, but each text gets every label that applies (possibly none), with an independent 0-1 score per label.

Inferred read-only

count_labels

Classify up to 1,000 texts and return only a histogram: how many landed on each label, and how many the model was unsure about.

Inferred read-only

review_uncertain

Classify up to 1,000 texts and return only the ones whose confidence fell under a threshold (default 0.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.classifier-dev]
url = "https://classifier.dev/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "classifier-dev": {
      "type": "http",
      "url": "https://classifier.dev/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: classifier-dev
Remote MCP URL: https://classifier.dev/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "classifier-dev": {
      "url": "https://classifier.dev/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "classifier-dev": {
      "type": "http",
      "url": "https://classifier.dev/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "classifier-dev",
  "transport": "streamable-http",
  "url": "https://classifier.dev/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

ENDPOINT 2

https://classifier.dev/mcp/docs

No auth detected

MCP server metadata

Name: classifier.dev docs
Version: 1.0.0

Capabilities

tools

Server instructions

This server answers questions about classifier.dev, the keyless text-classification API; it does not classify anything itself — for that connect https://classifier.dev/mcp. Start with search_docs for a specific question, list_docs to see what exists, and read_doc (optionally with a section) for the full text.

Known tools 4

list_docs

List every classifier.

Inferred read-only

read_doc

Return one document in full, or just one of its sections.

Inferred read-only

search_docs

Full-text search across every classifier.

Inferred read-only

get_examples

Return a copy-pasteable example of calling classifier.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.classifier-dev-docs]
url = "https://classifier.dev/mcp/docs"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "classifier-dev-docs": {
      "type": "http",
      "url": "https://classifier.dev/mcp/docs"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: classifier-dev-docs
Remote MCP URL: https://classifier.dev/mcp/docs

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "classifier-dev-docs": {
      "url": "https://classifier.dev/mcp/docs"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "classifier-dev-docs": {
      "type": "http",
      "url": "https://classifier.dev/mcp/docs"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "classifier-dev-docs",
  "transport": "streamable-http",
  "url": "https://classifier.dev/mcp/docs"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

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Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

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