io.github.spendpreflight/spendpreflight
SpendPreflight
Operated by SpendPreflight: sanctions screening and allow/hold/block preflight for x402 payments.
alive probed 2026-10-14 · HTTP 200
4tools
2.5ktokens in Claude Opus 5.5
2.5ktokens in Claude Code
1.2 %of a 200k context window
1.4ko200k_base estimate
787 msto initialize
416 msto list tools
- Endpoint
- https://api.spendpreflight.com/mcp (streamable-http)
- Host
- api.spendpreflight.com
- Protocol
- 2025-11-25
- Reports itself as
- spendpreflight 1.2.0
- Capabilities
- logging, prompts, resources, tools
- Instructions
- 677 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-14. Counted again when the tool definitions change. Method.
- Website
- https://spendpreflight.com
- Registry
- active, updated 2026-10-06 · registry entry
- Reachable
- 3 of the last 3 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| preflight_payment | 733 | 52 % |
| check_endpoint | 283 | 20 % |
| check_payee | 253 | 18 % |
| get_service_info | 142 | 10 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-14 09:35 | alive | 484 ms | 4 | 2.5k | 1.4k |
| 2026-10-10 10:30 | alive | 721 ms | 4 | 2.2k | 1.3k |
| 2026-10-07 11:22 | alive | 787 ms | 3 | 1.4k | 820 |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.spendpreflight/spendpreflight)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.