AEVS vs Visiby: Features, Pricing & Which Is Better (2026)

A side-by-side comparison of AEVS and Visiby — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.

AEVS

Fetch.ai

Free

Open-source SDK that creates tamper-evident, cryptographically signed receipts for every tool call an AI agent makes.

Signed Receipts: Records every tool call and seals it with an ECDSA P-256 signature backed by KMS.
Hash-Chained Logs: Links each receipt to the previous one so tampering or skipped steps are detectable.
Independent Verification: Confirms signatures via a public API or explorer using only a reference ID.
Drop-In SDK: Installs with pip and wraps existing tools without changing them.
Framework Auto-Detection: Automatically integrates with LangChain and MCP-based agents.
Open Source: Released as fetchai/AEVS-sdk for Python 3.10–3.13.

Agent Auditing: Keep a verifiable record of exactly what an agent did and when.
High-Stakes Actions: Prove execution of sensitive operations such as payments or refunds.
Compliance Evidence: Provide tamper-evident logs for regulated or accountable workflows.
Debugging Agents: Inspect tool inputs, outputs, timing, and errors for each call.
Third-Party Verification: Let external parties confirm an action occurred without sharing source code.

FNA Technology

Paid

AI visibility platform that tracks how ChatGPT, Perplexity, Claude, Gemini and AI Overviews cite your brand, and ships fixes.

AI Citation Tracking: Continuously samples roughly 50,000 prompts per week across ChatGPT, Claude, Perplexity, Gemini and Google AI Overviews to record where and how a brand is cited.
Per-Engine Visibility Scoring: Reports a composite AI Visibility score plus share of voice and prompts won or lost, broken out engine by engine so declines can be traced to a specific model.
Prompts & Citations Explorer: Lets teams open any tracked prompt and read the actual model answer to see which competitor was named and why.
Brand Entity Analysis: Maps the adjectives each engine associates with your brand versus competitors and suggests reframing plays to change that portrait.
Competitor Intelligence: Tracks rival citation share on comparison and 'alternatives to' prompts, highlighting categories where a competitor dominates.
Prioritized Action Plan: Converts findings into P0/P1 recommendations such as schema additions or comparison pages, each with a time estimate and projected score gain.
Site Audit for AI Parseability: Audits pages for missing entity definitions, structured Q&A data and other signals that prevent models from citing the site correctly.
White-Label Reporting and API: Higher tiers add white-label client reports, SSO/SAML and API access for agencies managing multiple brands.

AI Search Monitoring: Marketing teams track whether ChatGPT and Perplexity recommend their product or a competitor on high-intent category prompts.
Competitive Benchmarking: Brands quantify how much citation share a named rival is capturing on 'alternatives to' and 'best of' queries.
Content Prioritization: Content teams decide which pages to write or refresh based on which prompts are currently missed rather than on keyword volume alone.
Technical AEO Audits: SEO specialists find pages lacking FAQ schema or entity markers that keep answer engines from parsing them.
Agency Client Reporting: Agencies run pooled prompt tracking across multiple client workspaces and deliver white-label AI visibility reports.
Executive Reporting: Operators present a weekly digest showing search clicks alongside AI citation share to explain traffic shifts leadership sees.