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Read-only US tax reference for notices, deadlines, filing screens, and clearly labeled estimates.
MCP endpoint :https://mcp.arcandledger.com/directory/mcp · website · measurements and detailsEnrolled Agent tax tools: IRS notices, FBAR, LLC vs S-Corp, quarterly estimates & more.
MCP endpoint :https://mcp.arcandledger.com/mcp · website · measurements and detailsAppend an operations activity entry
MCP endpoint :https://antibody-package-occasional-floppy.trycloudflare.com/mcp/workspace-activity-reference/downstream · measurements and detailsARC-Seal tag count, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/arc-ok/mcp · website · measurements and detailsASN.1 OID arc shape, value discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/oid-arc/mcp · website · measurements and detailsCommodities research MCP: knowledge graph, COT, NG storage/weather, quotes, and stories.
MCP endpoint :https://www.getarcresearch.com/mcp · website · measurements and detailsReact components and blocks with motion. Search docs, props and shadcn install commands.
MCP endpoint :https://uiarc.dev/api/mcp · website · measurements and detailsThe infrastructure for the AI economy: primitives for inference, agents, and decisions.
MCP endpoint :https://mcp.carbonarc.ai · website · measurements and detailsDMARC-safe email forwarding for agents: aliases, DNS health checks, and MCP tools on your domains.
MCP endpoint :https://arc-relay.com/mcp · website · measurements and detailsCálculos de engenharia elétrica pela norma brasileira (NBR), validados, com citação normativa.
MCP endpoint :https://arc-flash-platform.onrender.com/mcp · website · measurements and detailsOceania govt data, cited: rates, VAT, tax, wages, holidays, FX. 8 countries; Australia free.
MCP endpoint :https://ausref.dev/mcp · website · measurements and detailsEuropean govt data, cited: rates, VAT, tax, wages, holidays, FX. 35 countries; Germany free.
MCP endpoint :https://euroref.dev/mcp · website · measurements and detailsMCP server for SAP ABAP systems
Package npm :arc-1 · website · measurements and detailsMCP server for SAP ABAP systems
Package npm :arc-1 · website · measurements and detailsAfrican govt data, cited to source: rates, VAT, tax, wages, holidays, FX. 34 countries; Ghana free.
MCP endpoint :https://afriref.dev/mcp · website · measurements and detailsAsian govt data, cited to source: rates, VAT, tax, wages, holidays, FX. 28 countries; Japan free.
MCP endpoint :https://asiaref.dev/mcp · website · measurements and detailsLatAm govt data, cited to source: rates, VAT, tax, wages, holidays, FX. 22 countries; Brazil free.
MCP endpoint :https://latamref.dev/mcp · website · measurements and detailsSee your team's status, delegate work, follow progress, and approve requests from your AI client.
MCP endpoint :https://team.talkarcllc.com/mcp · website · measurements and detailsMid-East govt data, cited to source: rates, VAT, tax, wages, holidays, FX. 9 countries; UAE free.
MCP endpoint :https://mearef.dev/mcp · website · measurements and detailsN American govt data, cited to source: rates, VAT, tax, wages, holidays, FX. 10 countries; USA free.
MCP endpoint :https://usaref.dev/mcp · website · measurements and detailsAI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt
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