Ephemeral Cloud MCP server
io.github.weekendinvestor/ephemeral-cloud-mcp·v0.1.3Temporary webhooks, URL watches and delayed callbacks for AI agents. Pay per use in USDC (x402).
60 downloads/wk
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If you have run it, two minutes of your experience saves the next person an afternoon.
Ephemeral Cloud tools (6, 4 write)
write = sends, deletes, buys or postsRead from the package source without running it. The installed server may list more.
create_callbackwrite actionSchedule a delayed wake ($0.01): after delay_seconds the payload lands in the resource mailbox (fetch with get_events), and is POSTed to callback_url if that URL echoes the x402_challenge query parameter. Granularity ~60s.
create_watchwrite actionDelegate waiting: the service polls a public URL until a condition holds, then delivers the result to the resource mailbox (and to a challenge-verified callback_url). One-shot. $0.25 up to 24h, $1.00 up to 7 days. Far cheaper than polling with your own inference calls.
create_webhookwrite actionCreate a temporary inbound webhook URL you can hand to any third-party service. Incoming requests are stored; fetch them with get_events. First call per IP is free (15 min); otherwise $0.01 (≤1h TTL) or $0.05 (≤24h). Returns url, retrieve_url, read_token, delete_token.
delete_resourcewrite actionDelete a webhook, callback, or watch early using its delete_token. Free.
get_eventsFetch the stored events/results of a webhook, callback, or watch using its read_token. Free.
service_infoMachine-readable description of the Ephemeral Cloud service: every endpoint, exact prices in USDC, limits, and error codes.
Public scan report
scanner v0.1.10 · 2026-10-30 · same rubric, same numbers if you re-run it
- Code scan3 source files scanned25/25
- –Live reliabilityno gateway calls yet and no remote to proben/a
- –Tool poisoningtools not inspected (local package is not executed); not countedn/a
- Auth qualitylocal package, no credentials required12/15
- Maintenancerepository not readable: repo not found3/15
- Maintainer identityno repository or website to verify2/10
How Ephemeral Cloud compares
Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.
- Safety score
- 65/100
- higher than 20% of 48,243 servers
- Tools
- 6
- the typical server has 7
- Tools that change things
- 67%
- typical: 0%. Fewer write tools means less an agent can break
- Downloads a week
- 60
- more than 48% of 12,306 servers with a package
What its tools let an agent do: 2 read · 3 create · 1 delete
Install Ephemeral Cloud in Claude Code, Cursor or VS Code
Runs npx -y ephemeral-cloud-mcp on your machine. Read the scan report first; the gateway never runs local packages.
claude mcp add ephemeral-cloud-mcp -- npx -y ephemeral-cloud-mcp
Ephemeral Cloud: common questions
- Is Ephemeral Cloud MCP server safe?
- With care: it is graded C, so read the findings first (65/100). Read the Ephemeral Cloud safety report
- How do I install Ephemeral Cloud?
- It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
- Does Ephemeral Cloud need an API key?
- No secret keys are declared. It reads 3 settings from the environment.
- Is Ephemeral Cloud maintained?
- The latest release is v0.1.3.
- How does Ephemeral Cloud compare with other MCP servers?
- safety score 65/100 (higher than 20% of 48,243 servers); tools 6 (the typical server has 7); tools that change things 67% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.