io.github.CryptoAPIs-io/mcp-blockchain-events
cryptoapis-blockchain-events
MCP server for subscribing to and managing on-chain event webhooks via Crypto APIs
alive probed 2026-10-15
3tools
2.8ktokens in Claude Opus 5.5
2.8ktokens in Claude Code
1.4 %of a 200k context window
1.6ko200k_base estimate
395 msto initialize
10 msto list tools
- Run it
- npx -y @cryptoapis-io/mcp-blockchain-events@0.5.0 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- cryptoapis-blockchain-events 0.1.0
- Capabilities
- prompts, resources, tools
- Instructions
- none
- Claude count
- Claude Opus 5.5, measured 2026-10-15. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/CryptoAPIs-io/cryptoapis-mcp-blockchain-events
- Registry
- active, updated 2026-09-24 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| blockchain_events_create | 808 | 51 % |
| blockchain_events_manage | 543 | 34 % |
| system_info | 229 | 14 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.CryptoAPIs-io/mcp-blockchain-events)
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.