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API-first platform for AI agents

Persistent project memory
for AI coding agents.

Turn stateless AI coding tools into stateful, long-running systems. Persistent memory, changelogs, feedback, runbooks, agent orchestration, structured design systems, and task coordination — hosted API, no local installation.

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14-day free trial with 500 credits. No card required.

Works with your favourite AI coding tools

Claude Code
Cursor
Windsurf
GitHub Copilot
Any MCP client

Your AI tools forget everything

They already have a brain and a workspace. Minolith gives them a memory.

How it works

Minolith is a hosted multi-tenant API. Your data is stored on Minolith's servers — there is nothing to install, run, or host yourself.

Architecture

REST API at api.minolith.io, MCP server at mcp.minolith.io, client dashboard at app.minolith.io. All services share one API key per project.

Data model

Each service stores structured data in typed fields — not free-text documents, not vector embeddings, not knowledge graphs. Context entries have 19 types (rule, pattern, decision, warning, etc.), scoped by tags and priority. Agents filter entries using type, tags, scope, and priority parameters, or full-text search.

Multi-project

Create multiple projects in the dashboard. Each project gets its own API key, its own data, its own agent definitions. Data is isolated between projects — one project cannot access another's data.

MCP transport

Minolith's MCP server uses HTTP transport (Streamable HTTP), not stdio. There is no local server process, no npm package, no npx command. Connect with: claude mcp add --transport http minolith https://mcp.minolith.io

Pricing

$5/month base subscription includes 500 credits, plus 10% GST where applicable. Reads are free. Writes cost credits. 1 credit = $0.01 USD. Context is entirely free. Storage costs 5 credits per MB per month. Overage billed at $0.01/credit.

Teams

Invite team members by email and assign them to projects with admin or member roles. All usage bills to the team owner's subscription — one credit pool, no per-seat charges, unlimited members. Team members can create and manage their own projects independently.

What Minolith is not

Not a local tool

There is no npm package, no Docker image, no local server. Minolith is a hosted API you connect to over HTTPS.

Not a vector database

Minolith stores structured, typed data — not embeddings. Retrieval is by type, tags, scope, and priority — not semantic similarity.

Not a knowledge graph

Entries are independent records with tags, not nodes with edges. There are no entity relationships or graph traversal queries.

Not an AI layer

Minolith stores and serves data. It does not run AI models, generate embeddings, analyse sentiment, or make decisions. Your AI agent is the intelligence — Minolith is the infrastructure it operates on.

Everything your agents need

Nine services, one API key. All reads are free.

Context

A structured knowledge base your agents build for themselves. 19 entry types (rule, pattern, snippet, decision, fact, warning, event, brief, bug, todo, dependency, config, workaround, workflow, persona, reference, preference, test, glossary). Filtered by type, tags, scope, priority and full-text search. Event entries are immutable. All Context operations are free.

Free

Changelog

API-first changelog hosting. Create entries via REST API or MCP tools as your agent ships features. Group entries into named versions. Hosted public page at changelog.minolith.io/{slug}. Embeddable JS widget (shadow DOM, configurable position and colour). RSS feed. Categories: feature, improvement, fix, breaking, deprecation, security, other.

$0.03 / entry

Feedback

Collect structured user feedback via an embeddable JS widget or REST API. Five feedback types: feedback, bug, idea, question, praise. Status workflow: open → under_review → planned → in_progress → completed → declined. Widget uses a public endpoint (no API key in client code, rate limited by IP). Agents query feedback via MCP to understand what users need.

$0.01 / item

Runbooks

Reusable procedure templates your agents execute with persistent progress tracking. A runbook is a template; a run is a specific execution with its own state. Four step types: action, check, gate (human approval), branch (conditional routing). Variables resolve at run start. Agents call get_current_step to resume where they left off.

$0.05 / template

Agents

Define agent identities: name, role, system prompt, allowed/denied tools, and Context queries that pre-load relevant knowledge. Bootstrap returns the agent's identity, session instructions, subagents, active runs, and feedback counts in one call. Browse and install from the curated template registry.

$0.03 / agent

Styleguide

Design tokens, components, patterns, voice rules, and managed image assets — a structured design system your agent queries before building any UI. Tokens define colours, spacing, typography, and breakpoints. Components describe reusable UI elements with variants and usage rules. Patterns capture layout conventions. Voice rules enforce tone and terminology. All queryable via MCP and REST API.

from $0.02

Tasks

Agent-human task coordination. Create tasks, assign them to agents or team members, track status through configurable workflows. Add notes for progress updates, blockers, or linked commits. Team feed shows activity across all tasks. Agents call get_my_tasks at session start to see what needs doing.

$0.02 / task

API Docs

Hosted API documentation your agent writes as it builds. Define endpoints, parameters, request/response examples through the API or MCP tools. Minolith renders and publishes themed documentation pages with sidebar navigation, search, and nested parameter trees. Five themes included.

$0.01–0.03 / write

Teams

Share projects with your whole team. Invite members by email and assign them to projects with admin or member roles. All usage bills to the team owner's subscription — one credit pool, no per-seat charges, unlimited members. Team members can manage their own projects independently.

from $15/mo

API + MCP

Full REST API at api.minolith.io and native MCP server at mcp.minolith.io. Hosted service — no local installation, no npm packages, no Docker containers. Connect via claude mcp add --transport http or any HTTP MCP client. One API key (prefixed mlth_) authenticates all services. JSON responses, cursor-based pagination, structured errors with fix suggestions. All reads are free. Writes cost credits at $0.01 each.

All services
See all features

Powered by MCP

Minolith's MCP server uses HTTP transport (Streamable HTTP) — no local process, no npm package, no stdio. Any MCP-compatible client can connect directly. One API key authenticates all services.

claude mcp add --transport http minolith https://mcp.minolith.io

Up and running in 60 seconds

No configuration files. No infrastructure. Just connect and go.

1

Create a project

Sign up, name your project, and get an API key. No card required.

2

Connect your agent

Add Minolith as an MCP server. It's a hosted service — nothing to install locally. Uses HTTP transport.

claude mcp add --transport http minolith https://mcp.minolith.io \ --header "Authorization: Bearer mlth_your_api_key" \ --header "X-Minolith-Agent: your_agent_name"

Or call the REST API directly:

curl -H "Authorization: Bearer mlth_your_api_key" \ https://api.minolith.io/v1/context/entries?type=rule&priority=high
3

Start building

Your agent now has persistent memory, changelogs, feedback, runbooks, design systems, and more.

Start free trial

Works everywhere you do

Local MCP servers lose context when you switch machines. Start a task on your office desktop, pick it up on a laptop at a coffee shop — Minolith keeps your agent's memory, runbook progress, and project state alive across every device. No sync scripts, no file sharing, no manual export. If your agent can reach api.minolith.io, it has everything it needs.

Simple pricing

Pay only for what you use. No tiers, no seat counts, no overages. Unlimited projects at no extra cost.

Context Free Included with every account
Changelog $0.03 / entry Reads, updates, and publishes are free
Feedback $0.01 / item Notes, status changes, and reads are free
Runbooks $0.05 / template Runs, step progression, and reads are free
Agents $0.03 / agent Bootstrap, registry installs, and reads are free
Styleguide from $0.02 Reads, updates, and deletes are free
Tasks $0.02 / task Notes, status changes, and reads are free
Storage $0.05 / MB / mo Deleting data reduces your next bill
Teams from $15 / mo Unlimited members, no per-seat charges

$5/month base — 500 credits included, plus 10% GST where applicable. Overage at $0.01/credit. All reads are free. All prices in USD.
14-day free trial with 500 credits, no card required.

Full pricing details