# Kimetsu

**Canonical:** https://apis.io/providers/kimetsu-dev/  
**Website:** https://kimetsu.dev/  
**APIs profiled:** 4

Kimetsu (kimetsu.dev) is Rodrigo Córdoba's open-source infrastructure for coding agents. Kimetsu itself is a local, model-free memory sidecar — one Rust binary and one SQLite brain per project — that Claude Code, Codex, Cursor, Pi and OpenClaw load as a local-stdio MCP server (~28 kimetsu_* tools), with a CLI, npm/cargo/PyPI packages, a self-hostable Kimetsu Remote HTTP MCP server and published benchmark numbers. The domain also operates agents.kimetsu.dev, a credential-free, read-only Agent Gateway with a published OpenAPI 3.1.0 (15 operations), an A2A Agent Card served at the RFC 8615 path (0.3 by default, 1.0 negotiated with the A2A-Version header) and a live JSON-RPC guide for Sidequest Commons — the maintainer's daily public project-selection loop run through GitHub issues and reactions — plus llms.txt on two hosts, a /.well-known/kimetsu-agents.json discovery pointer and JSON Schemas for its discovery documents. Everything is MIT OR Apache-2.0. Seeded from the A2A Registry listing dev.kimetsu.sidequest_commons_guide under the harvest name "Sidequest Commons".

## Kin Score — 44.9 / 100 (developing)

Scored 2026-10-09 under rubric 0.23.0. Trend: flat (+0.5 from 44.4).

| Facet | Score |
|---|---|
| Discoverability | 68.3 |
| Contract Quality | 48.4 |
| Contract Governance | 18.2 |
| Operational Transparency | 63.2 |
| Developer Ergonomics | 76.2 |
| Access Clarity | 0.0 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 22.5 (matched via fallback).

## Agent readiness — 33.3 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | documented |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | derived |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | yes |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | conformant |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## APIs (5)

- **Sidequest Commons Guide (A2A)** — A2A agent (JSON-RPC; 0.3 message/send by default, 1.0 SendMessage with A2A-Version 1.0) that returns deterministic, credential-free guidance on discovering Sidequest Commons and...
- **Kimetsu MCP Server (local stdio)** — The memory product's agent surface: `kimetsu mcp serve` exposes ~28 kimetsu_* tools (context retrieval, lesson recording, memory CRUD and curation, citations, conflict resolutio...
- **Kimetsu A2A API** — Deterministic guidance; no delegated actions or writes.
- **Kimetsu Discovery API** — Static, anonymous machine-discovery documents.
- **Kimetsu Sidequest API** — Read-only Sidequest Commons public data.

## MCP servers (1)

- **Kimetsu MCP Server** — Kimetsu ships its MCP server inside the kimetsu binary: `kimetsu mcp serve` is a local stdio server that hosts (Claude Code, Codex, Cursor, Pi, OpenClaw, Gemini CLI) launch per ...

## Agentic access (1)

- **Kimetsu Dev Agentic Access** — 15 operations · 1 acting

## Security (3)

- **Kimetsu Dev Authentication** — none · 0 schemes
- **Kimetsu Dev Domain Security** — TLSv1.3 · DNSSEC
- **Kimetsu Dev Vulnerability Disclosure** — contact published

## Plans (1)

- **Kimetsu Dev Plans Pricing**

## Tags

Company, AI Agents, Agent Memory, Coding Agents, MCP, A2A, Developer Tools, Open Source, Rust, Agent Discovery, Public Goods

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/kimetsu-dev/). Scores are computed from the provider's own public artifacts under a published rubric.