Authority alternatives

Tools that do what Authority does, found by what they say they do rather than by shelf. Among the equally alike, the most used come first. Each line says how it differs from Authority.

Read 2026-11-02 · Authority itself: From $4.99 once

With a free plan or free to use: Relatch, Mintlify, SmartMoney77, Perplexity, InvestJournal, AskVerdict.

10 alternativesUnlike Authority

#1
Relatch Knowledge
Converts uploaded documents into structured markdown skill files that Claude and Codex CLI can load as persistent context.
Free planMore widely used
3
Active
#2
The AI Agent Marketplace Knowledge
Sells downloadable markdown skill files that load into Claude to act as SEO, analytics and marketing specialists.
Also: Analytics, WritingMore widely used
21
Active
From $29/mo
#3
Sidepad Knowledge
Captures highlighted text from web pages and AI conversations into locally-stored markdown documents.
Also: WritingMore widely used
4
Active
#4
Mintlify Knowledge MCP · sign-in
Hosts self-updating documentation and knowledge bases that agents and LLMs can access and search.
Free planAlso: Search, RAG
34.9k
Active
From $450/mo
#5
Agentage Memory Knowledge MCP · open
Stores plain markdown memory files in an EU-hosted account and shares them with Claude, ChatGPT, Cursor and Claude Code over MCP.
More widely used
190
Active
#6
SmartMoney77 Finance MCP · open
Free web calculators that project compound growth, inflation erosion, fees, and investment returns from figures you enter.
Free plan
1
Active
2025
#7
Perplexity AI assistants
AI search engine that answers questions from live web sources with citations, with plans for teams and companies.
Free planMore widely used
4.2M
From $17/mo
2022
#8
InvestJournal Finance MCP · sign-in
Grades stocks with DCF valuation and quality ratios, keeps private investment theses, sorts company news, and lets Claude challenge theses against filings.
Free planAlso: Analytics
194
Active
#9
AskVerdict Knowledge
Multiple AI experts debate questions and argue different sides to reach a structured verdict with confidence scoring.
Free planAlso: Agents, Workflow automation
5
From $19/mo
#10
Publish Knowledge MCP · open
Peer-reviews submitted research papers with an AI editor and a panel of three language models, publishing each accepted paper's full review history alongside it.
Also: Evaluation
Little sign of use
Active

← Authority: the full card All Knowledge tools →

How this list is made: the words Authority is described with (what it does, for whom, what it is used for) are matched against every tool in the Atlas. A tool on the same shelf, or doing the same kind of work, counts for a little more. Nothing here is paid for.