Fatstack alternatives
Tools that do what Fatstack 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 Fatstack.
Read 2026-10-28
With a free plan or free to use: GitHub, Brandfetch.
- #1
Project GumballDeveloper toolsMCP · open
Exposes fifteen small pure-function developer tools, such as cron translation and regex explanation, through a web page, JSON API and MCP server.
Same job
3Active - #2

API AcreDeveloper toolsMCP · open
Sells single-request APIs paid per call in USDC over x402 on Base and Solana, covering web metadata, schema generation, and Base chain reads.
Same job
Little sign of useActive - #3

MicrosoftDeveloper tools
Sells Windows, Microsoft 365 and Azure cloud services, plus Surface devices and Xbox consoles.
More widely used
135MActive1975 - #4

Index AgenticaDeveloper toolsMCP · open
Catalogues skills, MCP servers, tools, protocols and APIs for AI agents, with guides, comparisons and a JSON API.
Same job
1Active - #5

GitHubDeveloper tools
Hosts Git repositories with pull requests, code review, issue tracking and Actions pipelines for building, testing and deploying code.
Free planAlso: Workflow automation, Code generation
42MFrom $4/user/mo2007 - #6

ExodataDeveloper tools
Provides structured access to a catalog of confirmed exoplanets and host stars via API, CLI, and MCP server for querying and analysis.
More widely used
31 linking domainsActive - #7

BrandfetchDeveloper tools
Provides API access to a database of brand logos, colors, and assets for integration into applications.
Free planMore widely used
1.2MActiveFrom $99/mo - #8

TwilioDeveloper toolsMCP · open
Sends and receives SMS, email, and voice messages through APIs and manages customer conversations with AI.
More widely used
1.1MActiveFrom $0.00 per use2008 - #9

Progress.comDeveloper tools
Sells developer and infrastructure software: Telerik and Kendo UI component libraries, Sitefinity CMS, MOVEit file transfer, Chef automation and MarkLogic data platform.
Also: RAGMore widely used
973kActive1981 - #10

Stratly Town SquareDeveloper toolsMCP · open
Lets autonomous agents claim paid bounties and sell pay-per-call APIs, paid in USDC on Base.
Also: Agents
Little sign of use
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How this list is made: the words Fatstack 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.
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