Braintrust vs Rayrun

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

Braintrust compared with Rayrun
Detail	Braintrust	Rayrun
What it does	The active observability platform for agents	One endpoint for every MCP tool
Stage	Growing	Not given
Founded	Not given	Not given
Based in	Not given	US
Pricing model	Freemium	Freemium
Pricing	Starter plan free with $10 credits monthly, 1 GB processed data, 10k scores, 14-day retention. Pro plan $249/month with $100 credits, 5 GB processed data, 50k scores, 30-day retention. Enterprise with custom pricing. Overage charges at $4/GB for Starter and $3/GB for Pro on processed data.	Free for one developer with up to 25 source-built services, 50,000 tool calls a month, then $0.20 per thousand. Team plan is $25 per developer per month with 100,000 tool calls per developer a month, pooled, then $0.20 per thousand. Enterprise from $1,500 per month.
Key features	Real-time trace inspection LLM scoring and evaluation Production monitoring dashboards Automated pattern detection Dataset versioning and management Prompt optimization with Loop agent Natural language trace investigation Custom annotation interfaces Gateway API for unified access Brainstore database for AI data	Source-built servers with TypeScript or Python projects Remote MCP, OpenAPI, npm package, and container image support Per-tool and per-argument access control policies Tool definition review and approval workflow Content scanning with literal and regex detectors Activity tracking and audit trails OIDC and SAML 2.0 single sign-on SCIM 2.0 provisioning Workspace-specific data encryption Custom domain publishing with DNS and Cloudflare certification
What makes it different	Built specifically for agents which fail differently than normal software Automatic pattern discovery from production data Framework agnostic with no vendor lock-in Enterprise security with SOC 2 Type II and HIPAA compliance Brainstore query engine for faster production debugging	One endpoint replaces every client config, eliminating need for each client to store every server and secret Coding agent builds the server automatically with no adapter needed Credentials held once by Rayrun instead of distributed across clients Built-in security review with published controls and audit trails for compliance teams Support for multiple service types without writing adapters
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)	77 +1 (up) since last check	45 no change since last check
Trust Flow (Majestic)	28	12
Citation Flow (Majestic)	51	36
Referring domains (Majestic)	3530	125

5 details filled in for both companies.

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