Registrai Arc data

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

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

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "Registrai Arc data": {
      "url": "https://builder.registrai.cc/api/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (11)

• arc_indices read-only

  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.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• arc_index_history read-only

  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.

  Parameters:

  • index (required) — string — abi = builder apps, aii = integrations, aei = both plus the Arc base layer
  • to — string — Last hour (inclusive). An ISO hour close, e.g. 2026-10-14T19:00:00Z.
  • from — string — First hour (inclusive). An ISO hour close, e.g. 2026-10-14T19:00:00Z.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• arc_apps read-only

  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.

  Parameters:

  • sort — string

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• arc_app read-only

  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.

  Parameters:

  • id (required) — string

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• arc_app_history read-only

  One Arc app's hourly points and activity (payments, paying wallets, new payers, USD) in one index, oldest first.

  Parameters:

  • id (required) — string
  • index (required) — string — abi = builder apps, aii = integrations, aei = both plus the Arc base layer
  • to — string — Last hour (inclusive). An ISO hour close, e.g. 2026-10-14T19:00:00Z.
  • from — string — First hour (inclusive). An ISO hour close, e.g. 2026-10-14T19:00:00Z.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• arc_new_apps read-only

  Arc apps first seen in an index after a given hour. Use this when asked what is new on Arc.

  Parameters:

  • index (required) — string — abi = builder apps, aii = integrations, aei = both plus the Arc base layer
  • since (required) — string — Members first seen after this hour. An ISO hour close, e.g. 2026-10-14T19:00:00Z.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• arc_verified read-only

  Arc projects whose builder proof validates against the Arc mainnet builder registry.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• arc_ecosystem read-only

  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.

  Parameters:

  • q — string — Name contains.
  • status — string
  • category — string

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• arc_entity read-only

  One project in the Arc ecosystem directory by slug (slugs come from arc_ecosystem): summary, status with evidence, links, contracts on Arc and sources.

  Parameters:

  • slug (required) — string

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• arc_numbers read-only

  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.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

• arc_apps_week read-only

  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.

  Hints: read-only yes · destructive no · idempotent yes · open-world no

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Measured by MCPYP probing. Untested fields are omitted, never estimated. Listing is always free; MCPYP never proxies calls or stores user tokens.