io.github.CryptoAPIs-io/mcp-block-data
cryptoapis-block-data
MCP server for retrieving block-level data from EVM, UTXO, and XRP blockchains via Crypto APIs
alive probed 2026-10-19
4tools
≈ 2.4ktokens, estimate
≈ 1.2 %of Claude's 200k window
1.7×the median server
501 msto initialize
9 msto list tools
- Run it
- npx -y @cryptoapis-io/mcp-block-data@0.4.0 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- cryptoapis-block-data 0.1.0
- Capabilities
- prompts, resources, tools
- Instructions
- none
- Of a 1M window
- ≈ 0.2 % of a 1M context window, estimate
- Claude count
- The count_tokens endpoint refused the tool schemas: invalid x-api-key. The estimate stands in.
- Repository
- https://github.com/CryptoAPIs-io/cryptoapis-mcp-block-data
- Registry
- active, updated 2026-09-24 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
Estimates with the o200k_base tokenizer.
| Tool | o200k estimate | Share of this server |
|---|---|---|
| evm_block_data | 894 | 37 % |
| utxo_block_data | 754 | 31 % |
| xrp_block_data | 517 | 22 % |
| system_info | 229 | 10 % |
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 Anthropic count_tokens endpoint refused the tool schemas (invalid x-api-key). A client that validates schemas can refuse them too.