xyz.paystage/preflight
PayStage Preflight
Is the PayStage Preflight MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-11.
Evaluate x402 PaymentRequired against a local spending policy before an agent pays
alive probed 2026-11-15 · unchanged since 2026-11-11
- Run it
- npx -y @paystage/preflight@0.2.2 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- paystage-preflight 0.2.0
- Capabilities
- tools
- Instructions
- none
- Of a 1M window
- <0.1 % of a 1M context window
- Count
- 148 tokens in Claude Opus 5.5, exact, measured 2026-11-11. With the Claude Code prefix mcp__…__ on each tool name: 156. The o200k_base estimate is 75. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/base-buzz/paystage
- Website
- https://paystage.xyz
- Registry
- active, updated 2026-11-10 · registry entry
- Changes
- 2 recorded, reachable in 2 of them. A row is added when the result, the tool count or the cost changes.
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.97×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| evaluate_mcp_payment | 148 | 75 | 100 % |
Compare this server with others, or with the servers that share its tool set.
Same tool set as 1 other server
These registry entries have the same tool names and the same schema sizes.
- io.github.base-buzz/preflight npmjs.com
More servers
Other registry entries on npmjs.com, the ones next to this name; all of them.
- Hyperliquid Funding xyz.honeycheck/hyperliquid-funding-mcp · alive
- Mandate xyz.mandatefi/mcp · alive
- PayStage Auth Watch xyz.paystage/auth-watch · alive
- PayStage xyz.paystage/mcp · alive
- PayStage Trade Preflight xyz.paystage/trade-preflight · alive
- 水獭 AI 比价 xyz.shuita/ai-price · alive
- I, Pencil verification xyz.sotapop/verify · alive
- Yault AESP xyz.yault/aesp · alive
Servers that mention preflight.
- objekts Production Desk ai.objekts.mcp/production-desk · alive
- PreClick — An MCP-native URL preflight scanning service for autonomous agents. ai.preclick/preclick-mcp · alive
- PreClick — An MCP-native URL preflight scanning service for autonomous agents (formerly URLCheck). ai.urlcheck/urlcheck-mcp · alive
- cc.ticktape/mcp · alive
- Agent Preflight com.agent-preflight/agent-preflight · alive
- Agent Distribution com.agentdistributionservices/agent-distribution · alive
- Silent Door Repository Handoff Planner com.aibitious.silent/repository-safety-preflight · alive
- Butterfly Delta Preflight com.butterflydelta/preflight · alive
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-11-11 08:38 | alive | 291 ms | 1 | 148 | 75 |
| 2026-10-30 07:54 | alive | 215 ms | 1 | 145 | 73 |
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers initialize and tools/list. Nothing to fix.