DataDoe vs Harny

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

DataDoe compared with Harny
Detail	DataDoe	Harny
What it does	Amazon data and action layer for any AI	Agent harness infrastructure that gives AI agents memory for each user, connected accounts, action limits and an audit record.
Stage	Startup	Not given
Founded	2025	Not given
Based in	US	CA
Pricing model	Free trial	Freemium
Pricing	$97 per month after a 14-day free trial. Includes 2,000 AI tokens per month (4,000 for the first 3 months), 10,000,000 data rows, one seat, unlimited Seller Central, Vendor Central and Amazon Ads connections, MCP, REST API, BigQuery access, and write-back Actions. Add-ons: +$49 per 10M data rows, +$	Free: first 500 monthly-active end users per month, free forever. Paid: $0.30 per monthly-active end user above 500, billed monthly.
Key features	MCP and REST API access to 130+ Amazon tables Connect to any AI including Claude, ChatGPT, Gemini, Cursor Write-back Actions to update listings, prices, bids and orders BigQuery integration for custom queries and BI tools Unified data from Seller Central, Vendor Central and Amazon Ads About two years of historical data backfilled Amazon-approved for buyer PII handling	Timestamped memory ingestion with backdating capability Per-user data isolation and privacy scoping Ranked memory recall with dated evidence Connected accounts integration per user Long-running agent jobs with folder-level operations Configurable token ceiling per API call Enforced action limits on agent operations Complete action audit trail with hash chaining MCP server integration for Claude and other clients
What makes it different	Single normalized schema joining Seller, Vendor and Ads data Retains data history longer than Amazon's API windows Lower AI token consumption than Amazon's own MCP Writes off by default with optional dry-run preview No per-account billing for unlimited Seller, Vendor and Ads connections	Highest published BEAM benchmark score at 128K tokens: 85.1, compared to competing memory systems 98% fewer tokens required than raw tool output, making responses 4× cheaper Works with 20+ agent frameworks including LangChain, LangGraph and LlamaIndex First 500 monthly-active end users free forever Per-person billing model scales with user growth, not API calls
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	23 +1 (up) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	16	0
Citation Flow (Majestic)	38	0
Referring domains (Majestic)	124	1

6 details filled in for both companies.

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