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Fulcra vs Rayrun

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

Fulcra compared with Rayrun
Detail FulcraRayrun logo Rayrun
What it doesThe user-owned context backend for AI agents One endpoint for every MCP tool
StageGrowing Not given
FoundedNot given Not given
Based inUS US
Pricing modelFreemium Freemium
PricingNot given 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
  • One user-owned context for every agent
  • Agents wake up to what changed since their last loop
  • Readable, traceable context with every change logged
  • End-to-end encryption with AES-256
  • Granular sharing controls with revocable access
  • Right to export, delete, and transparency
  • Context that travels across AI products and models
  • 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
  • User-owned context that travels with you across AI products
  • Traceable agent activity with full visibility and control
  • Agents coordinate through shared context without learning being trapped in silos
  • End-to-end encryption with no data selling
  • 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 planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)37 +3 (up) since last check45 no change since last check
Trust Flow (Majestic)2012
Citation Flow (Majestic)4036
Referring domains (Majestic)593125

5 details filled in for both companies.

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