Authority
From $4.99 onceActively maintained
- Is it safe? Run by Marketing Signals Ltd.See ↓
- Is it free? From $4.99 once · pricing page, read Oct 19, 2026See ↓
- What else does this?
Perplexityfree
The AI Agent Marketplace
SidepadSee ↓
≈ 28visits/mo
Little sign of use · estimate, read Oct 14, 2026
- Price
- From $4.99 oncepricing page, read Oct 19, 2026
- Activity
- Actively maintainedsite updated 10 days ago
- Company
- Marketing Signals Ltd · since 2026privacy policy · per their site
- Used for
- evaluate a long-term investment with a value-investing lens
- weigh capital allocation decisions
- apply a named thinker's decision heuristics to a live decision
- Has an MCP server (1 in the registry)public registry →
- Publishes llms.txt, a file written for AI assistantsauthority.md ↗
- Founded2026per their site ↗
- HeadquartersHalifax, GBper their site
- Run byMarketing Signals Ltdprivacy policy ↗
- Certifications they stateGDPRprivacy policy ↗
- Privacy policy updated2026-04-21privacy policy ↗
These are Authority's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.
- MCP servermd.authority/authority-mdverified in the MCP registry
- Stateanswers, 4 toolschecked 2026-10-19
- Address to connectauthority.md/api/mcp
- MCP docsauthority.md/mcpthe vendor's page ↗
This card as JSON, for your agent →
Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.
Figure and bar: visits/mo, estimate · year: online since
- #1
Perplexity
AI search engine that answers questions from live web sources with citations, with plans for teams and companies.
4.2MFrom $17/mo2022 - #2
The AI Agent Marketplace
Sells downloadable markdown skill files that load into Claude to act as SEO, analytics and marketing specialists.
21ActiveFrom $29/mo - #3
Sidepad
Captures highlighted text from web pages and AI conversations into locally-stored markdown documents.
4Active - #4
Relatch
Converts uploaded documents into structured markdown skill files that Claude and Codex CLI can load as persistent context.
3Active - #5
PublishMCP · 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.
Little sign of useActive
Not it? Say what you need
betaThree tools from the Atlas for the job you describe, each with what fits and what does not.
No notes yet. What do you use Authority for?
Sign in to leave a noteWhat is Authority?
Packages historical thinkers' decision heuristics as markdown skill files that Claude or any LLM can load as reasoning frameworks. It is listed in the Atlas under Knowledge and made by Marketing Signals Ltd.
How much does Authority cost?
Paid plans start at $4.99 once, per Authority's pricing page on 2026-10-19.
Is Authority free?
No. Its pricing page showed no free plan on 2026-10-19.
Do people use Authority?
Little sign of use: ≈ 28 visits/mo · estimate, 2026-10.
Is Authority still maintained?
Actively maintained: site updated 10 days ago.
Who owns Authority?
Authority is run by Marketing Signals Ltd, per its privacy policy (2026-10-19).
Is Authority safe?
We do not audit vendors. What Authority publishes, read 2026-10-19: GDPR stated on its privacy policy.
Does Authority give refunds?
In its own words (terms of service, 2026-10-19): “We offer a full refund within 30 days of purchase, on request, no questions asked.”
How we read a tool
No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.
- Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
- Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
- Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
- The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.
How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.
How we read every tool → · By INITE Atlas Desk
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Analytics and ad measurement tell us which pages and which of our ads do their job: Google Analytics and Google Ads, the Meta pixel, Yandex Metrica, and one first-party id of our own. Nothing is stored until you answer, and declining changes nothing about the site.