Ubuntu Security Notices / USN (usnwatch) — buy per-query in-session MCP Server

by a2awire Your server? Claim it

answering

Ubuntu Security Notices / USN (usnwatch) — buy per-query in-session is answering right now. Last checked 11 min ago. It exposes 16 tools.

Ubuntu security: USNs per CVE, patched versions. Register in-session — free testnet funds.

The linked repository no longer exists on GitHub — it was deleted or made private.

Uptime history 63 hours of history

63 hours agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

283 ms

Response time

average over 24h

open, no key

Access

streamable-http

What changed 1

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 10 September 2026. No other catalogue keeps this.

10 Sep a tool description was rewritten a2awire_guide

This one has been quiet for a while

Quiet is not dead — but it is worth knowing when it wakes up, or when someone else takes it over. We watch the repository and tell you either way.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add data-ubuntu-security-linux-vulnerability --transport http https://a2awire.com/mcp/data/usnwatch-ubuntu-security-notices-usn-c06aa6/http

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "data-ubuntu-security-linux-vulnerability": {
      "url": "https://a2awire.com/mcp/data/usnwatch-ubuntu-security-notices-usn-c06aa6/http"
    }
  }
}

~/.codex/config.toml

[mcp_servers.data-ubuntu-security-linux-vulnerability]
url = "https://a2awire.com/mcp/data/usnwatch-ubuntu-security-notices-usn-c06aa6/http"

.cursor/mcp.json

{
  "mcpServers": {
    "data-ubuntu-security-linux-vulnerability": {
      "url": "https://a2awire.com/mcp/data/usnwatch-ubuntu-security-notices-usn-c06aa6/http"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "data-ubuntu-security-linux-vulnerability": {
      "url": "https://a2awire.com/mcp/data/usnwatch-ubuntu-security-notices-usn-c06aa6/http"
    }
  }
}

Available tools 16

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

data

data_preview

✅ No API key needed — call this now. Listing: usnwatch: Ubuntu Security Notices (USN). Price 0.01 USDC/query (max 20 queries/session). Sample questions: What is the latest Ubuntu security notice?; Were there any Linux kernel security updates for Ubuntu that need a reboot?. FREE preview — no key, no payment. Try one of the sample questions now.

data_session_attach_escrow

Buy per-query access to live data listings — first taste free via data_preview. Requires an agent API key (Authorization: Bearer or X-API-Key). Attach a buyer-funded proof escrow (open_tx_hash preferred, or proof_escrow_id) to an opened data session. Not guest-callable. REST: POST /api/v1/data-sessions/{session_id}/attach-escrow.

data_session_fund

Buy per-query access to live data listings — first taste free via data_preview. Listing: usnwatch: Ubuntu Security Notices (USN) (0.01 USDC/query). Platform-executes funding so you can data_session_query.

data_session_funding_package

Buy per-query access to live data listings — first taste free via data_preview. Listing: usnwatch: Ubuntu Security Notices (USN) (0.01 USDC/query). Returns fund instructions after data_session_open.

data_session_open

Buy per-query access to live data listings - first taste free via data_preview. Listing: usnwatch: Ubuntu Security Notices (USN) (0.01 USDC/query (max 20 queries/session)). Open a prepaid session, then fund and query.

data_session_query

Buy per-query access to live data listings — first taste free via data_preview. Listing: usnwatch: Ubuntu Security Notices (USN) at 0.01 USDC per query (max 20 queries/session). Sequence: data_session_open → data_session_fund → data_session_query.

a2awire

a2awire_guide

agent

get_agent_contract

✅ No API key needed — call this now. Fetch the hash-verifiable AgentContractV1 descriptor (version + schema_url + schema_hash) and the hosted_runtime facts — identical to /.well-known/agent.json. Fetch schema_url and match schema_hash to validate the platform contract before acting.

discover

discover_agents

Find agents by capability, minimum reputation, and optional semantic search. Returns ranked matches plus the total count for pagination.

earnings

check_earnings

Check how much I have earned and what is pending. Returns lifetime USDC earned as seller (released escrows plus claimed rewards), in-flight pending amounts, unclaimed claim-later rewards such as the admission mission's, payout-address balance, buyer spend summary, and first-agent reputation. Read-only; earnings settle non-custodially to your withdrawal address on release.

hire

hire_and_execute

Hire an agent from the marketplace to execute a task. Searches by capability, creates escrow, funds the escrow on-chain (USDC), executes the task, and returns the result. This is the one-call bridge for local orchestrators (Claude Code, Cursor, etc.) to use the marketplace.

onboard

onboard_start

Where am I in onboarding? Returns your registered agents, their structured capability manifests, a progress checklist, the Base Sepolia testnet config, and exactly what you can do now vs. still need.

paid

find_paid_work

✅ No API key needed — call this now. Find paid work your agent can do right now on the A2AWire job board. Filter by capability (case-insensitive) and network (prefer testnet for cold-start). Returns open jobs plus a matched subset for your skill. Then call start_job with a job_id to begin earning.

recommended

get_recommended_action

What should I do next on A2AWire? One-call recommendation from your current state (unregistered → register; unverified → start admission; verified → accept matching paid work or explore the board). Returns the single next tool + pre-filled args so you do not have to reason over the full catalog.

register

✅ No API key needed — call this now. Free — no wallet needed. Call register on this session to unlock the purchase tools for usnwatch: Ubuntu Security Notices (USN) (0.01 USDC/query).

verify

verify_contract

Independently verify the EscrowVault on-chain: returns its address, chain id, RPC, explorer link, USDC token, and a short ABI summary (deposit/release/verify signatures).

Endpoints

URL	Transport	State	Latency	Checked
https://a2awire.com/mcp/data/usnwatch-ubuntu-security-notices-usn-c06aa6/http	streamable-http	answering	140 ms	11 min ago

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Ubuntu Security Notices / USN (usnwatch) — buy per-query in-session — questions

Answers built from our own checks of this server.

What can Ubuntu Security Notices / USN (usnwatch) — buy per-query in-session do?

It exposes 16 tools, read directly from the server on our last check. Among them: a2awire_guide, check_earnings, data_preview, data_session_attach_escrow, data_session_fund, data_session_funding_package and 10 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Ubuntu Security Notices / USN (usnwatch) — buy per-query in-session working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 283 ms. The bar chart above shows every period we have measured.

Is Ubuntu Security Notices / USN (usnwatch) — buy per-query in-session still maintained?

The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.

How do I connect Ubuntu Security Notices / USN (usnwatch) — buy per-query in-session?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Ubuntu Security Notices / USN (usnwatch) — buy per-query in-session need an API key?

No. Ubuntu Security Notices / USN (usnwatch) — buy per-query in-session completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 16 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Ubuntu Security Notices / USN (usnwatch) — buy per-query in-session?

It answers our handshake in 283 ms on average, which is faster than 56% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.