Who it is for
Growth marketers and the engineers who maintain their referral attribution.
Overview
What Cello does
Cello runs referral, partner, and affiliate programs, and its connector serves two audiences from one surface. For growth and marketing, the listing describes live program metrics, benchmark comparisons, identifying which referrers drive revenue, spotting referrers worth re-engaging, and recommendations on conversion. For engineers, it describes confirming integration status, checking whether attribution is working, validating incoming webhook and API events, and pulling setup documentation into context. Seven tools are claimed across both. The listing states one connection covers Claude, Claude Code, and Cowork. Community tier, with documentation and an endpoint URL published, and a Cello account is required.
Tool surface
The endpoint declined the listing request without explanation, so the seven claimed tools stay unnamed and the split between program analytics and integration diagnostics is only as described.
Availability
Where Cello is listed
Cello is listed in the Claude connectors directory only. Cello has no app under the same domain in the ChatGPT directory; 392 of the 3,150 products here are on both marketplaces, and this is not one of them.
The MCP server behind a Claude connector is usually the same server a ChatGPT app would need, so the absence is a distribution decision rather than a technical one.
Claude listing
In the Claude connectors directory
Cello publishes 7 tools to Claude. That is a mid-sized surface: 33.4% of the 1,253 Claude-listed connectors expose fewer.
The median Claude-listed connector filed under Data & Analytics publishes 12, so this one sits 5 tools below its bucket's median, 129th of 198.
It falls in the 7-10 tools band, which holds 14.6% of the Claude directory.
Cello 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
- Cello
- Verification
- Community-listed (61.5% of the Claude directory)
- Filed under
- Data & Analytics
- Endpoint
-
https://mcp.cello.so/mcp - Documentation
- Publisher setup docs
- Published tools
- 7 · 7-10 tools band
- Depth rank in Data & Analytics
- 129 of 198
- Snapshot
- August 2026
Cello 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 Cello describes it
Connect Cello to Claude to build and scale your referral, partner, or affiliate programs without leaving the conversation. For growth and marketing teams: Ask which referrers drive the most revenue, identify who to re-engage before they churn, and get recommendations to improve conversion. Pull program metrics and compare them against benchmarks. For developers and technical teams: Confirm your integration status, check whether attribution is working correctly, and validate incoming webhook or API events. Fetch setup documentation in context when you need it. Key capabilities: — Live referral program metrics and benchmark data — Top referrer identification — Attribution and integration health status — Actionable recommendations — On-demand setup and API documentation Works across Claude.ai, Claude Code, and Cowork. Connect once, query in plain language.
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
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This is an independent catalogue entry compiled by Node8 from Cello's public marketplace listing as it 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 Cello, and inclusion here is not an endorsement.
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