nab

Token-optimized HTTP client for LLMs: fetches any URL as clean markdown. CLI and MCP server.

What does this entry provide?

nab is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 56/100. As a Model Context Protocol server, it exposes tools that MCP-compatible LLM clients such as Claude, Cursor, and Copilot can call directly, extending an agent's reach beyond its built-in capabilities. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. No automated install command is listed; check the repository for manual setup instructions. Review the last-pushed date and repository status before adding nab to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.

Snapshot facts

Source: Official MCP Registry
Quality: 56/100
Install method: manual
Repo: MikkoParkkola/nab
Repo updated: Oct 24, 2026

Install command

See source docs

Install method: manual

Review the upstream source before running this command.

GitHub project

Quality

Repo stars

Repo updated

Oct 24, 2026

How is this score calculated?

Weighted across six dimensions, scored 0-100.
Provenance (25): listed in an official or curated registry.
Installability (25): a runnable install command beats a declared transport, which beats a source checkout.
Maintenance (20): recency of the last push; archived entries score zero here.
Adoption (20): repository stars on a log curve.
Documentation (10) and description quality (10): parsed manifest or SKILL.md frontmatter, and a real description rather than a placeholder.

MCP manifest

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-10-24T14:03:13.098038Z",
      "publishedAt": "2026-10-24T14:03:13.098038Z",
      "statusChangedAt": "2026-10-24T14:03:13.098038Z"
    }
  },
  "server": {
    "name": "io.github.MikkoParkkola/nab",
    "title": "nab",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "version": "0.12.6",
    "packages": [
      {
        "version": "0.12.6",
        "transport": {
          "type": "stdio"
        },
        "identifier": "nab",
        "registryType": "cargo",
        "registryBaseUrl": "https://crates.io",
        "environmentVariables": [
          {
            "name": "NAB_SSRF_ALLOW_PRIVATE",
            "description": "Set to allow fetching private/internal IP addresses (corporate dashboards). Never unblocks loopback, link-local/cloud-metadata, or other always-denied ranges. Off by default."
          },
          {
            "name": "NAB_SSRF_ALLOWLIST",
            "description": "Comma-separated list of private IP/CIDR ranges to exempt from the SSRF guard (e.g. 10.252.0.0/16,192.168.1.5). Narrower, preferred alternative to NAB_SSRF_ALLOW_PRIVATE. Empty by default."
          },
          {
            "name": "NAB_WEBMCP_STRICT",
            "description": "Set to a truthy value to require fetched pages advertising a WebMCP manifest to match NAB_WEBMCP_OPT_IN before ingestion is allowed (defense against prompt injection via fetched content). Off by default."
          },
          {
            "name": "NAB_WEBMCP_OPT_IN",
            "description": "Comma-separated allowlist consulted when NAB_WEBMCP_STRICT is enabled. Empty by default."
          },
          {
            "name": "NAB_STATE_DIR",
            "description": "Overrides the directory used to persist session/cookie state (default: ~/.nab)."
          },
          {
            "name": "NAB_KEYCHAIN_INTERACTION",
            "description": "Controls whether cookie extraction may prompt macOS Keychain for authorization. Set to 'never' in automated/headless callers so a background fetch cannot open a GUI dialog."
          },
          {
            "name": "NAB_OP_BIN",
            "description": "Path to the 1Password CLI binary used for credential retrieval during the login tool (default: op)."
          },
          {
            "name": "NAB_MCP_CLI_BIN",
            "description": "Path to the mcp-cli binary used for MCP-based credential retrieval (default: mcp-cli)."
          },
          {
            "name": "NAB_NO_TELEMETRY",
            "description": "Set to anything other than 0 or false to skip the daily heartbeat. NO_TELEMETRY and DO_NOT_TRACK do the same."
          },
          {
            "name": "NAB_TELEMETRY_ENDPOINT",
            "description": "Replace the daily heartbeat URL. An empty value leaves the default."
          }
        ]
      }
    ],
    "repository": {
      "url": "https://github.com/MikkoParkkola/nab",
      "source": "github"
    },
    "websiteUrl": "https://github.com/MikkoParkkola/nab",
    "description": "Token-optimized HTTP client for LLMs: fetches any URL as clean markdown. CLI and MCP server."
  }
}

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