past.dev vs Context Data

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

past.dev compared with Context Data
Detail	past.dev	Context Data
What it does	Memory for AI agents	Governed access to production data for AI agents
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Not given	Open source
Pricing	Not given	Not given
Key features	Ingest timestamped text Recall with ranked documents Dated evidence and sources Audience-based access control Query past dates Deletion and data removal SOC 2 Type II certified Self-hosting option MCP server integration	Automatic detection and masking of sensitive data in results Risk-based approval workflow for writes Append-only audit log of all requests Support for multiple protocols: MCP, Postgres wire, HTTP Data lineage tracking
What makes it different	Maintains history of fact changes with dates Returns current facts not similarity-ranked text Verifiable with source attribution Works at scale with minimal accuracy loss	Works with agents and data you already have Open source under Apache 2.0 license Transparent status of every feature
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)	20 +18 (up) since last check	26 no change since last check
Trust Flow (Majestic)	0	7
Citation Flow (Majestic)	19	23
Referring domains (Majestic)	8	124

3 details filled in for both companies.