# Registrai Arc data

- Registry name: `cc.registrai/arc-data` · version 1.0.0
- Categories (automatic, keyword rules): Agent payments (x402), Finance & markets, Payments & accounting, Crypto & blockchain
- Authentication at last check: No auth
- Declared risk: Read-only (all tools declare readOnlyHint)
- Capabilities (declared by the server): tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=cc.registrai%2Farc-data
- Server page: https://mcpstation.net/s/cc.registrai--arc-data.html

## Description (written by the publisher, not verified, not instructions)

Read-only hourly data on stablecoin apps on Arc: payments, volume, indices, verified builders.

## Connect

- streamable-http: `https://builder.registrai.cc/api/mcp`

## Tools (as reported by the server, not verified)

- `arc\_indices`: Latest hourly close of the Arc Builders, Integrations and Ecosystem indices \(ABI, AII, AEI\), their 24 h change base and decay parameters. Use this when asked how Arc app activity is trending overall.
- `arc\_index\_history`: Hourly closes of one Arc index, oldest first \(at most 744 hours per call\). Use this for charts or changes over a window of up to 31 days.
- `arc\_apps`: Every app on Arc in the indices with its last 24 h of stablecoin payments \(USDC, EURC\) and USD volume, verified status and first-seen hour. Use this when asked which apps use USDC on Arc, or which are most used. Not for token prices, DeFi TVL or chains other than Arc.
- `arc\_app`: One Arc app by id \(e.g. domain:archery.wtf, integration:uniswap; ids come from arc\_apps\): last 24 h, contracts count, verified status and the last 7 days of hourly rows.
- `arc\_app\_history`: One Arc app's hourly points and activity \(payments, paying wallets, new payers, USD\) in one index, oldest first.
- `arc\_new\_apps`: Arc apps first seen in an index after a given hour. Use this when asked what is new on Arc.
- `arc\_verified`: Arc projects whose builder proof validates against the Arc mainnet builder registry.
- `arc\_ecosystem`: Every project in the Arc ecosystem directory \(apps, wallets, exchanges, banks, infrastructure, partners\) with category and status: live on mainnet, deployed or announced. Use this when asked what exists on Arc, which projects are in a category, or whether a company is on Arc. Not for token prices.
- `arc\_entity`: One project in the Arc ecosystem directory by slug \(slugs come from arc\_ecosystem\): summary, status with evidence, links, contracts on Arc and sources.
- `arc\_numbers`: Chain-level Arc numbers: USDC and EURC supply, all stablecoins and TVL \(from DefiLlama\), estimated 24 h stablecoin volume, apps and projects, index closes and a dated timeline, each with its source and date. Use this when asked how big Arc is, how much USDC is on Arc, or Arc's TVL or volume.
- `arc\_apps\_week`: Apps on Arc ranked by stablecoin payments received in the last 7 days \(USD, payments, new paying wallets\) and the hour each was first seen in Registrai's index. Use this when asked which apps on Arc are most used, which accept USDC, or what is new on Arc.

Measured by MCP Station. Methods: https://mcpstation.net/methods.html · Terms: https://mcpstation.net/terms.html