Blockworks plugin for Claude

Crypto research and market data from Blockworks, inside Claude. The plugin connects Claude to the Blockworks MCP server and adds a skill, a command and an agent that teach Claude how to use it well.

What it includes

• MCP server (.mcp.json): connects to the hosted Blockworks MCP server at https://mcp.blockworks.com/mcp over HTTP. The plugin contains only this address. It does not contain or run any server code on your machine.
• Skill crypto-research: tells Claude which tool answers which kind of question.
• Command /blockworks:research <topic>: writes a short, cited research brief on an asset, protocol or topic.
• Agent crypto-analyst: handles multi-part research questions that need numbers and sources.

Tools

All tools are read-only. They do not trade, move funds or change any data.

Tool	What it does
search_documents	Finds research, news, governance, diligence and transcript documents
tabular_catalog	Lists row-and-column datasets and their fields
tabular_data	Reads filtered, sorted rows from one dataset
timeseries_catalog	Lists time-series datasets, granularities and metrics
timeseries_data	Reads metric values over a time window

Get an API key

You need a Blockworks API key to use the plugin. Create one at app.blockworks.com/account/api.

Sign in

The server uses OAuth, and your API key is the credential.

1. The first time Claude calls a Blockworks tool, Claude opens a Blockworks sign-in page in your browser.
2. Enter your Blockworks API key on that page and submit it.
3. The page sends you back to Claude. Claude then sends your API key as the bearer token on each request to the server.

The server gives Claude a token that lasts 30 days. If you revoke your API key, the next tool call fails and Claude asks you to sign in again.

Known limit: the sign-in page does not check your API key. If you enter a wrong key, sign-in still completes. The error appears at the first tool call as UNAUTHORIZED: API key invalid or expired. To fix it, disconnect the Blockworks server in Claude, then sign in again with the correct key.

Access tiers

What you can read depends on the entitlements of your API key.

• search_documents needs an Enterprise account with the ai_toolkit_permission API permission. It allows 30 requests per minute for each user.
• Datasets: each dataset in tabular_catalog and timeseries_catalog shows an access tier. A public dataset needs no entitlement. The unpaid, paid and permissive tiers need a key with the matching entitlement. A permissive dataset also names the permission it needs.

The catalogs list only the datasets that Blockworks publishes to its public API.

Example prompts

• "What happened with EigenLayer governance in August 2026? Cite your sources."
• "Show the top 10 assets by market cap today."
• "Show the daily price of ETH for the last 90 days."
• "How did Uniswap fees change from Q1 2026 to Q2 2026?"
• "/blockworks:research Hyperliquid"

Troubleshooting

Error	Cause	Fix
UNAUTHORIZED: API key invalid or expired	The key is wrong, revoked or expired	Disconnect the server in Claude and sign in again with a valid key
FORBIDDEN: this endpoint requires an Enterprise account with the ai_toolkit_permission API permission	search_documents needs Enterprise access	Upgrade your plan, or use the dataset tools only
FORBIDDEN: your subscription tier does not grant access to this dataset	The dataset's access tier is above your key's entitlements	Pick a dataset your tier allows. Check the tier in the catalog.
RATE_LIMITED: ...	Too many requests in a short time	Wait, then try again
search_documents returns old documents	The query has no dates	Put concrete dates in the question, such as "in August 2026"

Data and privacy

The plugin sends your questions and tool arguments only to the Blockworks MCP server at mcp.blockworks.com. It runs no local code and no hooks. Your API key goes only to Blockworks. See the Blockworks Terms and Privacy Policy.

Install

After the listing goes live, add the plugin from the Claude plugin directory.

To test a local copy in Claude Code, clone this repository and start Claude Code with the plugin folder:

claude --plugin-dir ./blockworks-claude-plugin

License

MIT. See LICENSE.