Registrai Arc data
Read-only hourly data on stablecoin apps on Arc: payments, volume, indices, verified builders.
Should I use this
Quality & Safety
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"arc-data": {
"url": "https://builder.registrai.cc/api/mcp"
}
}
}Remote endpoints
https://builder.registrai.cc/api/mcpstreamable-httpWhat it can do
Tool inventory
Tools (13)
🟢arc_indices
Latest hourly close of the Arc Builders, Integrations and Ecosystem indices (ABI, AII, AEI), their 24 h change base and decay parameters.
Input Schema
{
"type": "object",
"properties": {},
"required": [],
"additionalProperties": false
}🟢arc_index_history(index, from, to)
Hourly closes of one Arc index, oldest first (at most 744 hours per call).
Input Schema
{
"type": "object",
"properties": {
"index": {
"type": "string",
"enum": [
"abi",
"aii",
"aei"
],
"description": "abi = builder apps, aii = integrations, aei = both plus the Arc base layer"
},
"from": {
"type": "string",
"description": "First hour (inclusive). An ISO hour close, e.g. 2026-10-14T19:00:00Z."
},
"to": {
"type": "string",
"description": "Last hour (inclusive). An ISO hour close, e.g. 2026-10-14T19:00:00Z."
}
},
"required": [
"index"
],
"additionalProperties": false
}🟢arc_apps(sort)
Every stablecoin app on Arc in the indices with its last 24 h of stablecoin payments and USD volume, verified status and first-seen hour.
Input Schema
{
"type": "object",
"properties": {
"sort": {
"type": "string",
"enum": [
"payments",
"usdc",
"points",
"first_seen"
]
}
},
"required": [],
"additionalProperties": false
}🟢arc_app(id)
One Arc app by id (e.g. domain:archery.wtf, integration:uniswap): last 24 h, contracts count, verified status and the last 7 days of hourly rows.
Input Schema
{
"type": "object",
"properties": {
"id": {
"type": "string"
}
},
"required": [
"id"
],
"additionalProperties": false
}🟢arc_app_history(id, index, from, to)
One app's hourly points and activity (payments, paying wallets, new payers, USD) in one index, oldest first.
Input Schema
{
"type": "object",
"properties": {
"id": {
"type": "string"
},
"index": {
"type": "string",
"enum": [
"abi",
"aii",
"aei"
],
"description": "abi = builder apps, aii = integrations, aei = both plus the Arc base layer"
},
"from": {
"type": "string",
"description": "First hour (inclusive). An ISO hour close, e.g. 2026-10-14T19:00:00Z."
},
"to": {
"type": "string",
"description": "Last hour (inclusive). An ISO hour close, e.g. 2026-10-14T19:00:00Z."
}
},
"required": [
"id",
"index"
],
"additionalProperties": false
}🟢arc_new_apps(index, since)
Apps first seen in an index after a given hour.
Input Schema
{
"type": "object",
"properties": {
"index": {
"type": "string",
"enum": [
"abi",
"aii",
"aei"
],
"description": "abi = builder apps, aii = integrations, aei = both plus the Arc base layer"
},
"since": {
"type": "string",
"description": "Members first seen after this hour. An ISO hour close, e.g. 2026-10-14T19:00:00Z."
}
},
"required": [
"index",
"since"
],
"additionalProperties": false
}🟢arc_verified
Projects whose builder proof validates against the Arc mainnet builder registry.
Input Schema
{
"type": "object",
"properties": {},
"required": [],
"additionalProperties": false
}🟢arc_index_history_deep(index, from, to)
Hourly closes of one Arc index for any window (beyond the free 744 h). Paid via x402 (USDC on Arc): $0.002 via Circle Gateway or $0.01 standard. Call once to get the payment requirements, then retry with params._meta["x402/payment"].
Input Schema
{
"type": "object",
"properties": {
"index": {
"type": "string",
"enum": [
"abi",
"aii",
"aei"
],
"description": "abi = builder apps, aii = integrations, aei = both plus the Arc base layer"
},
"from": {
"type": "string",
"description": "First hour (inclusive). An ISO hour close, e.g. 2026-10-14T19:00:00Z."
},
"to": {
"type": "string",
"description": "Last hour (inclusive). An ISO hour close, e.g. 2026-10-14T19:00:00Z."
}
},
"required": [
"index"
],
"additionalProperties": false
}🟢arc_app_history_deep(id, index, from, to)
One app's hourly points and activity for any window. Paid via x402 (USDC on Arc): $0.002 via Circle Gateway or $0.01 standard. Call once to get the payment requirements, then retry with params._meta["x402/payment"].
Input Schema
{
"type": "object",
"properties": {
"id": {
"type": "string"
},
"index": {
"type": "string",
"enum": [
"abi",
"aii",
"aei"
],
"description": "abi = builder apps, aii = integrations, aei = both plus the Arc base layer"
},
"from": {
"type": "string",
"description": "First hour (inclusive). An ISO hour close, e.g. 2026-10-14T19:00:00Z."
},
"to": {
"type": "string",
"description": "Last hour (inclusive). An ISO hour close, e.g. 2026-10-14T19:00:00Z."
}
},
"required": [
"id",
"index"
],
"additionalProperties": false
}🟢arc_members_day(date)
Every member's hourly rows and the ABI, AII and AEI closes for one UTC day. Paid via x402 (USDC on Arc): $0.03 via Circle Gateway or $0.05 standard. Call once to get the payment requirements, then retry with params._meta["x402/payment"].
Input Schema
{
"type": "object",
"properties": {
"date": {
"type": "string",
"description": "YYYY-MM-DD (UTC)."
}
},
"required": [
"date"
],
"additionalProperties": false
}🟢arc_events(since_block, until_block, since_ts, kind, project, ...)
Watch-feed events on Arc: deploys, upgrades, control changes, pauses and large outflows, labelled to projects. Paid via x402 (USDC on Arc): $0.002 via Circle Gateway or $0.01 standard. Call once to get the payment requirements, then retry with params._meta["x402/payment"].
Input Schema
{
"type": "object",
"properties": {
"since_block": {
"type": "string"
},
"until_block": {
"type": "string"
},
"since_ts": {
"type": "string"
},
"kind": {
"type": "string"
},
"project": {
"type": "string"
},
"contract": {
"type": "string"
},
"labelled": {
"type": "string"
},
"min_balance": {
"type": "string"
},
"min_project_usdc_24h": {
"type": "string"
},
"limit": {
"type": "string"
}
},
"required": [],
"additionalProperties": false
}🟢arc_contract(address)
Facts for one contract on Arc: label, project, recent events and USDC balance. Paid via x402 (USDC on Arc): $0.005 via Circle Gateway or $0.01 standard. Call once to get the payment requirements, then retry with params._meta["x402/payment"].
Input Schema
{
"type": "object",
"properties": {
"address": {
"type": "string"
}
},
"required": [
"address"
],
"additionalProperties": false
}🟢arc_project_scope(source, limit, offset)
Every contract attributed to one project. Paid via x402 (USDC on Arc): $0.01 via Circle Gateway or $0.02 standard. Call once to get the payment requirements, then retry with params._meta["x402/payment"].
Input Schema
{
"type": "object",
"properties": {
"source": {
"type": "string"
},
"limit": {
"type": "string"
},
"offset": {
"type": "string"
}
},
"required": [
"source"
],
"additionalProperties": false
}Community
Evidence