AccInt MCP Server for Claude

Content

AccInt is a local Work Model MCP server for Claude and other coding agents. It exposes two MCP tools: acc_retrieve, which reads the scored substrate by late-interaction retrieval, and acc_act, which records commitments, solves sub-goals, runs bounded local work, registers reusable runtimes, and closes outcomes after reality answers.

Use AccInt when you want agent work to compound across projects without sending the Work Model to a cloud memory service. The substrate is a local SQLite file (acc.db), and the same file can be shared across Claude Code, Codex, OpenCode, and Cursor host wiring.

Source Review

• https://github.com/maxbaluev/accreted-intelligence
• https://github.com/maxbaluev/accreted-intelligence/blob/main/README.md
• https://github.com/maxbaluev/accreted-intelligence/blob/main/docs/install/README.md
• https://github.com/maxbaluev/accreted-intelligence/blob/main/docs/registry/mcp-registry.md
• https://registry.modelcontextprotocol.io/v0.1/servers/io.github.maxbaluev%2Faccint/versions/latest
• https://accint.xyz

These sources were reviewed on 2026-06-18. Prefer the repository README, install guide, official MCP Registry entry, and live site for current install paths and platform support.

Features

• Two MCP tools: acc_retrieve for scored Work Model retrieval and acc_act for actions such as solve, continue, outcome, exec, register, and browser or registered runtimes.
• Local-first storage through a user-owned acc.db SQLite substrate.
• Official MCP Registry identity io.github.maxbaluev/accint with MCPB packages for supported macOS, Linux, and Windows targets.
• Host wiring for Claude Code, Codex, OpenCode, and Cursor through acc hosts-sync.
• Outcome-credit workflow where passing tests, owner approval, delivered actions, or other grounded results can strengthen future retrieval and action choices.
• Public Apache-2.0 installer/docs/plugins/registry glue with a proprietary local engine binary under the AccInt EULA.

Installation

Install AccInt from the Official MCP Registry entry io.github.maxbaluev/accint when your client supports MCPB packages. For broader self-serve setup, follow the repository install guide and review the installer before running it.

If AccInt is already installed locally, add the stdio server to Claude Code:

claude mcp add accint -- acc --db /absolute/path/to/acc.db mcp

To wire all detected local agent hosts after installation:

acc hosts-sync
acc status

MCPB-aware clients can install the official MCP Registry entry io.github.maxbaluev/accint instead of running the broad self-serve installer. The registry path ships the local acc binary, not a prebuilt acc.db.

Configuration

If you wire the MCP server manually, point your client at the local acc binary and choose a database path:

{
  "mcpServers": {
    "accint": {
      "command": "acc",
      "args": ["--db", "/absolute/path/to/acc.db", "mcp"]
    }
  }
}

The same acc.db path can be reused across compatible host agents when you want one Work Model to accumulate lessons from multiple tools.

Use Cases

• Let Claude retrieve project- or business-specific context that has been strengthened by real outcomes rather than raw recall alone.
• Record a commitment before agent work starts and close it when a test passes, a browser flow completes, or the owner confirms the result.
• Reuse routines that have already worked, such as scripts, browser flows, or MCP runtimes, instead of re-reasoning through the same task every session.
• Share one local Work Model between Claude Code and other coding-agent hosts.
• Keep operational learning on a machine you control while still allowing explicit, approved external actions.

Safety and Privacy

AccInt runs as a local binary with real host permissions, so install it only on machines where that trust boundary is acceptable. Review the installer, release binary, EULA, and MCP client permissions before connecting it to sensitive workspaces. acc_act can invoke local execution, browser, and registered runtime paths; external actions are designed to require owner authority before publishing, sending, deploying, deleting important data, or using credentials.

The Work Model stays in a local SQLite file chosen by the user. The MCPB bundle does not ship a database, and retrieval, scoring, prediction, and sandboxed work run locally. The public installer enables opt-out anonymous telemetry limited to event names and source refs; it excludes prompts, files, memory, and Work Model data. Disable it with ACC_NO_TELEMETRY=1 during install or acc telemetry off later.

Troubleshooting

Claude cannot find the tools

Run acc hosts-sync, restart Claude Code, then check that the configured MCP server points at the installed acc binary and a writable acc.db path.

First run takes a long time

The installer may download the embedding model on first use, which can be several GB. Let the installer finish, then run acc status or acc doctor for health output.

You need a marketplace install

Use the Official MCP Registry entry io.github.maxbaluev/accint when your client supports MCPB packages. The installer remains the broader path when you want host auto-wiring across local agent tools.

Telemetry is not acceptable

Set ACC_NO_TELEMETRY=1 before running the installer, or run acc telemetry off after installation.

Duplicate Check

No AccInt, Accreted Intelligence, accreted-intelligence, maxbaluev, or matching AccInt source URL entry was found in content/mcp or the repository content before this submission.