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Symvanta vs Volley

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

Symvanta compared with Volley
DetailSymvanta logo SymvantaVolley logo Volley
What it doesCode knowledge graph MCP server for AI agents to understand codebases accurately API sequence diagram tool with payloads on every arrow
StageNot given Not given
FoundedNot given Not given
Based inNot given Not given
Pricing modelFreemium Freemium
PricingStarter: $19 USD per month; Pro: $29 USD per user per month; Enterprise: $99 USD per seat. Billed monthly, cancel anytime. Free: editor, local diagrams, share links, SVG and PNG export, CLI, 3 saved diagrams, HAR imports up to 8 requests, 200 hosted API and MCP calls a month, 1 webhook inbox with 25 requests a month, 1 recording link with 3 recordings. Pro: $9/month or $90/year (billed in advance), up to 1,000 saved dia
Key features
  • Symbol resolution and metadata retrieval
  • Call graph and callers analysis
  • Cross-repository dependency tracking
  • Multi-language code parsing
  • GitHub webhook automation
  • Plain-text sequence diagram editor with real-time rendering
  • Request and response payloads displayed on every arrow
  • HAR file import with automatic redaction of secrets
  • Webhook inbox to capture and diagram provider deliveries
  • Recording links to collect customer HAR files as diagrams
  • Drift Check to update diagrams when APIs change
  • SVG and PNG export for sharing and embedding
  • AI agent support via MCP server, HTTP API and CLI
  • README embeds that update when diagrams are edited
  • Presentation mode for step-through walkthroughs
What makes it different
  • 15% fewer tokens for equivalent answers
  • Cross-repository graph relationships resolved automatically
  • Zero configuration setup required
  • Branch pinning for feature work and RFCs
  • No account needed to write and share diagrams
  • AI can write diagrams from plain-text syntax
  • Built from real traffic: HAR files, webhooks and customer recordings
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)6 +4 (up) since last check3 no change since last check
Trust Flow (Majestic)103
Citation Flow (Majestic)2722
Referring domains (Majestic)518

5 details filled in for both companies.

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