Cossistant
by Cossistant · Open-source AI and human support framework for React and Next.js apps
BenchRank score
Screenshots of Cossistant
Homepage
Overview
Cossistant is an open-source support framework for React and Next.js apps, installed as a package (@cossistant/next). An AI agent answers from past answers and a knowledge base crawled from your docs and conversations, and escalates to a human teammate when it cannot answer. Model, prompt and skills are configurable, with tools for Linear, Stripe and Cal.com.
- Best for
- React and Next.js SaaS teams wanting an AI support agent inside their own product.
- Pricing
- Free tier at $0/month, then Hobby at $20/month and Pro at $40/month under a launch promo (list prices $30 and $90); no annual rates are shown.
- Runs on
- WebSelf-hosted
Strengths and trade-offs
Strengths
- Open source under GPL-3.0, with self-hosting listed on the plans
- Installs into a React or Next.js app with one package
- Crawls docs and conversations to auto-build FAQ answers
- Built-in tools for Linear, Stripe and Cal.com, plus your own APIs
Trade-offs
- Free tier caps you at 20 conversations and 200 messages per 30 days
- Only React and Next.js are named; no other frameworks are mentioned
- $20 and $40 are launch promo rates; list prices are $30 and $90
- Two advanced features on the plan table are marked "Soon"
How Cossistant markets itself
A structured read of the promise, proof and page design on Cossistant’s captured homepage.
Homepage capture
“AI Agent Customer Support for Your SaaS in Under 10 Lines of Code”
- Angle: Developer-first
- Hero: Product screenshot
Pricing
Published plans and prices from Cossistant’s own pricing page.
How this score is made up
Each dimension is scored out of 100 and combined into the headline score using fixed weights.
MCP support
Whether an agent can drive the product through the Model Context Protocol, and how much setup that takes.
API quality
Public API surface: machine-readable spec, official SDKs, documented auth, errors, rate limits and versioning.
Documentation
Publicly reachable docs — coverage, freshness, code samples and machine readability.
Agent friendliness
How readable the site is to an automated client: llms.txt, structured data, server-rendered content, crawler access.
Pricing transparency
Whether real prices are published, self-serve signup exists, and usage costs are knowable without a sales call.
Changelog
A public, dated record of what shipped and when — the clearest signal that a product is still alive.
Marketing site structure
Whether the site answers a buyer's questions: clear positioning, the pages that matter, and accessibility.
Page speed
How fast the site loads for real visitors: Chrome UX Report 75th-percentile LCP, INP and CLS, with a Lighthouse mobile run standing in where a site has too little traffic for field data.
Operational trust
Status page and incident history, security disclosure, compliance and data-processing documentation.
Measured, but not part of the score
Useful to know, but not a mark for or against the product — so these do not affect the ranking.
Openness
Source availability, self-hosting, data export and open standards. Scored and shown, but not part of the composite — paid SaaS is not worse for being paid SaaS.
Maintenance
Release cadence and repository activity. Scored and shown, but not part of the composite — it is only measurable for open repositories.
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Where this comes from
The Cossistant pages BenchRank reads when it scores the product — its documentation, release notes, status and security pages, and its repository where there is one.
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