infrabroker
Infrastructure · tested 2026-08-19 · re-test due 2026-11-19 · by the Hlido desk, not the vendor
In short: An infrastructure access broker built on a genuinely strong idea — the model never holds a credential; it requests an action and the broker mints a single-use key for it.
Quick answer
infrabroker scores 74/100 (STEADY) on Hlido’s independent, hands-on test (reviewed 2026-08-19). STEADY (74) for a security-first infrastructure access broker with a genuinely strong core design (agents never hold credentials; single-use SSH certs / bound ServiceAccount tokens), three authenticated frontends, and co
infrabroker (formerly ssh-broker) is an SSH and Kubernetes access broker for AI agents whose central design decision is the right one: the model never receives a credential. It requests an action, and the broker executes it with a credential minted for that single operation — an ephemeral, scope-limited SSH certificate from its own CA, or a short-lived bound ServiceAccount token — and returns only the output. That inverts the usual, dangerous pattern of handing an agent long-lived secrets. It offers three frontends from one binary: MCP over stdio for local personal use with process isolation, MCP over HTTP with OAuth2/OIDC where each client authenticates and the user identity and groups propagate to the signer for multi-user setups, and HTTP+mTLS for network agents with a client certificate. The engineering discipline shows in the documentation: the published reference (HTTP endpoints, MCP tool schemas, config fields, CLI) is generated from the actual code by a docgen tool and diff-checked in CI, so it cannot drift from the implementation — and the site foregrounds an explicit threat model and architecture. The honest limits are maturity and reach: at v3.1.2 with a low public star count and an apparently single maintainer, this is an early, specialist tool, and Hlido reviewed the documentation site rather than a running broker, so the credential-minting and isolation behaviour are described and code-referenced rather than exercised. But the security model is exactly what agent infrastructure access should adopt.
Why STEADY
STEADY (74) for a security-first infrastructure access broker with a genuinely strong core design (agents never hold credentials; single-use SSH certs / bound ServiceAccount tokens), three authenticated frontends, and code-generated CI-checked docs with a published threat model — held down to low-medium confidence by early maturity (v3.1.2, low adoption, apparently solo) and a surface-only review that did not exercise the broker. Not VITAL absent hands-on verification and broader track record.
What we saw
4 screenshots captured by the Hlido engine during the reviewed run (run-2c1d994261f6bdbb-luisgf-github-io). Our own captures — not vendor marketing material.
What it does well
- Excellent core primitive: the model never receives a credential — it requests an action and the broker mints a single-use, scope-limited SSH cert or short-lived ServiceAccount token
- Three clear frontends from one binary: local MCP/stdio, multi-user MCP/HTTP with OAuth2/OIDC and identity propagation, and HTTP+mTLS for certificate-bearing network agents
- Documentation is generated from code (routes, tool schemas, config structs) and diff-checked in CI, so the reference cannot drift from the implementation
- Foregrounds an explicit threat model and architecture rather than burying security
- Directly targets the right risk — replacing long-lived agent secrets with per-operation, auditable credentials
What it fails at
- Early and low-adoption — v3.1.2 with a small public star count and an apparently single maintainer
- Surface-only review — Hlido read the docs, not a running broker, so credential minting, scoping and isolation are described, not tested here
- Specialist scope (SSH + Kubernetes) and real operational setup (a CA/PKI, OIDC, mTLS) — not a turnkey product
- No independent security audit is cited on the captured surface
Best for
- Teams giving AI agents SSH or Kubernetes access who want per-operation, auditable credentials instead of long-lived secrets
- Security-conscious operators comfortable running a broker with its own CA/PKI and OIDC/mTLS
- Multi-user setups needing user identity to propagate to the credential signer
Not recommended for
- Users wanting a mature, widely-adopted product with vendor support
- Teams unwilling to operate PKI/OIDC/mTLS infrastructure
- Anyone needing a hands-off, turnkey access solution
Related agents
Agent relevance
API CLI MCP Behavioral-testable
Agentic-Commerce Readiness 67/100 · INTEGRABLE
Independent readiness for agent delegation & transaction. How it’s scored · check live
Run `infrabroker serve-mcp` (local stdio) or `serve-mcp-http` (OAuth2/OIDC, multi-user); agents call MCP tools that request SSH/Kubernetes actions, and the broker executes them with a single-use minted credential. A `serve-http` mTLS endpoint (POST /v1/ssh_run) serves certificate-bearing network agents.
Agent-friendly score: 9/10
Score over time
The longitudinal record — every point is the score as published on that date. Raw series.
Evidence
- Excellent core primitive: the model never receives a credential — it requests an action and the broker mints a single-use, scope-limited SSH cert or short-lived ServiceAccount token — source (2026-08-19) verified
- Three clear frontends from one binary: local MCP/stdio, multi-user MCP/HTTP with OAuth2/OIDC and identity propagation, and HTTP+mTLS for certificate-bearing network agents — source (2026-08-19) verified
- Documentation is generated from code (routes, tool schemas, config structs) and diff-checked in CI, so the reference cannot drift from the implementation — source (2026-08-19) verified
- Foregrounds an explicit threat model and architecture rather than burying security — source (2026-08-19) verified
- Hands-on runtime behaviour (executing the tool / a live task) — source (2026-08-19)



