# Carbon Arc — AI Connector Carbon Arc publishes 10 MCP tools to Claude and is listed in the ChatGPT apps directory. Marketplace availability, tool surface, verification tier, and what Node8 measured against the live endpoint. Source: https://node8.ai/ai-connectors/data-analytics/carbon-arc/ --- [AI Connectors](https://node8.ai/ai-connectors/) · [Data & Analytics](https://node8.ai/ai-connectors/data-analytics/) # Carbon Arc Business intelligence queries over private data holdings Listed in ChatGPT and Claude · 10 published tools · Community-listed [ChatGPT listing](https://chatgpt.com/plugins/carbon-arc?open_in_app) [Claude connector docs](https://docs.carbonarc.ai/platform/mcp/carbonarc-mcp) [carbonarc.ai](https://www.carbonarc.ai/) Overview ## What Carbon Arc does The Carbon Arc app connects ChatGPT to the company's business intelligence platform, where questions in ordinary language are resolved against private datasets and returned as structured tables. Four functions are listed in the record: asking a data question and getting a table back, searching by company, location, or metric name to see what is covered, examining trends across time periods and geographies, and following relationships between entities in the data. One example is a request for Walmart card spend during 2024, which indicates the sort of consumer transaction data available. Another asks the app to list its agent personas. ### Who it is for Analysts and researchers with a Carbon Arc subscription who work with alternative data. ### What stands out Answers arrive as structured tables rather than as narrative summaries. Availability ## Where Carbon Arc is listed Carbon Arc ships this on both marketplaces: Carbon Arc is listed in the Claude connectors directory and in the ChatGPT apps directory, under the same publisher domain. Only 392 of the 3,150 products in this directory are listed in both marketplaces. One MCP server can serve both surfaces; what differs is each platform's listing and review process. ChatGPT listing ## In the ChatGPT apps directory Developer Carbon Arc Corporation Filed under Data & Analytics Listed since June 2026 Authentication Authenticates when installed Website [carbonarc.ai](https://carbonarc.ai/) Policies published Privacy policy · Terms of service Official listing [Open in ChatGPT](https://chatgpt.com/plugins/carbon-arc?open_in_app) Snapshot August 2026 ### Example prompts from the listing - Show me all agent personas? - Show me Walmart credit card spend? Claude listing ## In the Claude connectors directory Carbon Arc publishes 10 tools to Claude. That is a mid-sized surface: 45% of the 1,253 Claude-listed connectors expose fewer. The median Claude-listed connector filed under Data & Analytics publishes 12, so this one sits 2 tools below its bucket's median, 110th of 198. It falls in the 7-10 tools band, which holds 14.6% of the Claude directory. Carbon Arc publishes a remote MCP endpoint. Claude connects to it over HTTP; there is nothing to install locally. Every connector in the Claude directory is remote, all 1,253 of them, so transport is not a differentiator there. Publisher Carbon Arc Verification Community-listed (61.5% of the Claude directory) Filed under Data & Analytics Endpoint `https://mcp.carbonarc.ai/` Documentation [Publisher setup docs](https://docs.carbonarc.ai/platform/mcp/carbonarc-mcp) Published tools 10 · 7-10 tools band Depth rank in Data & Analytics 110 of 198 Snapshot August 2026 Carbon Arc is community-listed in the Claude directory, the tier 770 of 1,253 connectors sit in (61.5%). It is the default for a self-published server, and says nothing either way about quality. In the publisher's words ## How Carbon Arc describes it > The Carbon Arc MCP Server is a data infrastructure layer that converts natural language questions into real-world signals for decision-making by providing access to proprietary data. Core Functions: 1. Ask questions like "Show me Walmart's 2025 credit card spend" and get structured data tables 2. Search for companies, locations, and metrics by name based on available data 3. Analyze trends across different time periods and geographic regions 4. Explore relationships between entities and available data Quoted from the connector's own Claude directory listing as captured in August 2026. Node8 did not write it and does not vouch for it. Nearby ## Other Data & Analytics connectors ### [0Delta.ai](https://node8.ai/ai-connectors/data-analytics/0delta-ai/) Exact Online finance data for fractional CFOs and founders Claude ### [Adobe Customer Journey Analytics](https://node8.ai/ai-connectors/data-analytics/adobe-customer-journey-analytics/) Query Adobe Customer Journey Analytics metrics, dimensions, and segments Claude ### [AFAS AI Connect, by iWebDevelopment](https://node8.ai/ai-connectors/data-analytics/afas-ai-connect-by-iwebdevelopment/) AFAS Profit queries and drafted writes for Dutch businesses Claude ### [Airbyte Agent Engine](https://node8.ai/ai-connectors/data-analytics/airbyte-agent-engine/) Connects ChatGPT to business apps through Airbyte connectors ChatGPT ### [BencinaMCP](https://node8.ai/ai-connectors/data-analytics/bencinamcp/) Fuel price comparisons for Chilean service stations ChatGPT ### [DataAssist-IO](https://node8.ai/ai-connectors/data-analytics/dataassist-io/) Organisation-scoped SQL and CSV querying for teams ChatGPT [All 260 Data & Analytics connectors](https://node8.ai/ai-connectors/data-analytics/) This is an independent catalogue entry compiled by Node8 from Carbon Arc's public marketplace listings as they stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with Carbon Arc, and inclusion here is not an endorsement. ## Want your company reachable inside ChatGPT and Claude? Node8 builds MCP servers end to end: deciding which tools are worth exposing, the authentication and permission model, the review submissions, and the onboarding that gets them used. One server serves ChatGPT, Claude, and Microsoft Copilot. [See how it works](https://node8.ai/mcp) Book a strategy session