FabTally Chain

On-chain monitoring reads: ENS/Basename expiry, gas, token unlocks & Chainlink oracle health.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "fabtally-chain": {
      "command": "npx",
      "args": [
        "-y",
        "fabtally-chain"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

FabTally Chain — MCP server

On-chain monitoring reads an AI agent or dev polls per-call. Fronts the Chain HTTP API at https://chain.fabtally.com. Holds no private key.

Tools (all paid; a call with no payment returns the decoded x402 402 challenge)

Tool	Price	What it does
`ens_expiry`	$0.001	Resolve an ENS `.eth` / Basename `.base.eth` name's registration expiry on-chain — expiry date, days-left, 90-day grace status, release date, current owner. Args: `name`.
`gas`	$0.001	Current gas for a chain via public RPC — base fee + suggested priority + max fee (gwei) at the latest block; optional at/below-threshold boolean. Args: `chain`, `below_gwei?`.
`token_unlocks`	$0.003	Next token vesting/unlock event(s) from DefiLlama's public emissions data — date, amount, % of max supply. Cleanly says so when there's no public schedule. Args: `token` (symbol/name/address), `chain?`.
`oracle_health`	$0.003	Chainlink price-feed health — last-update age, latest answer, round monotonicity, stale flag vs heartbeat, optional deviation vs a reference. Args: `feed_address`, `chain`, `heartbeat_seconds?`, `reference?`.

Every tool also accepts an optional x_payment (base64 x402 payload) that is forwarded as the X-PAYMENT header to settle the call and return the real result. Humans can instead prepay by card and use an X-FabTally-Key credit key against the HTTP API.

Transports

stdio (portable): npx fabtally-chain-mcp (bin: fabtally-chain-mcp)
streamable-http (hosted): https://chain.fabtally.com/mcp

Config: FABTALLY_CHAIN_BASE (default https://chain.fabtally.com).

Read-only, keyless, stateless, descriptive market-data/utility reads. Operated by Sunstone Soft (fabtally.com). Not financial advice, not a signal, not a prediction. The stateful "alert me when …" delivery is a separate product (the FabTally Alerts Telegram bot).

Read the full README →View source on GitHub →

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Frequently Asked Questions about FabTally Chain

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "fabtally-chain": { "command": "npx", "args": ["-y", "FabTally Chain"] } }

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Technical Specs & Signals

CategoryFinance & Fintech

27Quality signal: Emerging · 27/100How this signal is calculated ▾

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Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

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