axcient-mcp

MCP server for Axcient x360Recover — BCDR clients, devices, backup jobs, vaults, and appliances. Built on @wyre-technology/node-axcient and the MCP v2 SDK, serving both the 2025-era initialize handshake and the 2026-07-28 stateless envelope from a single dual-era HTTP entrypoint.

Credentials

Generate an API key in the x360Portal: Settings → API Keys (see Axcient's key management guide).

Copy .env.example. Leave CONDUIT_S2S_SECRET empty in that file.

• Local / stdio (Claude Desktop, CLI): set AXCIENT_API_KEY. The stdio transport does not use CONDUIT_S2S_SECRET.

• Hosted / gateway: the WYRE MCP Gateway injects X-Axcient-Api-Key per request (AUTH_MODE=gateway). The gateway compose service does not set AXCIENT_API_KEY and does not use env_file.

/health and /healthz stay unauthenticated and do not read credentials.

X-Gateway-S2S signing

With MCP_TRANSPORT=http and CONDUIT_S2S_SECRET set, every /mcp request must include X-Gateway-S2S:

X-Gateway-S2S: t=<unix seconds>,v1=<hex hmac-sha256>

v1 is HMAC-SHA256 over the ASCII message t=<unix seconds>, keyed with CONDUIT_S2S_SECRET, hex-encoded. The timestamp must be within 300 seconds of the server clock. A missing or invalid header returns 401. The secret is never logged.

import { createHmac } from "node:crypto";

const t = Math.floor(Date.now() / 1000);
const v1 = createHmac("sha256", process.env.CONDUIT_S2S_SECRET).update(`t=${t}`).digest("hex");
const xGatewayS2s = `t=${t},v1=${v1}`;

In AUTH_MODE=gateway, /mcp also requires X-Axcient-Api-Key. A request missing that header returns 401 and does not fall back to AXCIENT_API_KEY.

Related MCP server: spanning-mcp

Run locally (stdio)

npm install
npm run build
AXCIENT_API_KEY=your-key npm start

Run as HTTP (gateway / hosted)

CONDUIT_S2S_SECRET="$(openssl rand -hex 32)" MCP_TRANSPORT=http AUTH_MODE=env AXCIENT_API_KEY=your-key npm start
# → http://127.0.0.1:8080/mcp, health at http://127.0.0.1:8080/health

Local HTTP without a secret is development-only. It binds 127.0.0.1 and logs a warning:

MCP_TRANSPORT=http MCP_ALLOW_INSECURE_DEV=1 npm start

Docker

The image listens on 0.0.0.0 inside the container (MCP_HTTP_HOST) and defaults to AUTH_MODE=gateway. Publish the port on loopback and pass the S2S secret. In gateway mode, the Axcient API key arrives on each request as X-Axcient-Api-Key; it is not read from the environment.

docker build --platform linux/amd64 --build-arg GITHUB_TOKEN=$(gh auth token) -t axcient-mcp .
docker run \
  -e CONDUIT_S2S_SECRET=your-s2s-secret \
  -p 127.0.0.1:8080:8080 \
  axcient-mcp

Compose refuses to start when CONDUIT_S2S_SECRET is unset, runs AUTH_MODE=gateway, publishes 127.0.0.1:8080:8080, and does not inject AXCIENT_API_KEY:

CONDUIT_S2S_SECRET=your-s2s-secret GITHUB_TOKEN=$(gh auth token) docker compose up

Single-tenant HTTP (AUTH_MODE=env) still requires the S2S secret, then uses AXCIENT_API_KEY:

docker run \
  -e CONDUIT_S2S_SECRET=your-s2s-secret \
  -e AUTH_MODE=env \
  -e AXCIENT_API_KEY=your-key \
  -p 127.0.0.1:8080:8080 \
  axcient-mcp

Tools

20 tools, flat surface (no router — well under the fleet's ~25-tool threshold).

No destructive tools exist in this surface — the x360Recover public API (v0.3.1) has no delete/disable operations, so no confirmation/elicitation flow is wired up. See node-axcient's README for known API quirks (error-shape inconsistencies, list-endpoint schema documentation bugs) this server's error messages surface verbatim from the SDK.

License

Apache-2.0