Swarmindex
- Is it safe? We have not read the data policy of Swarmindex yet. Read it on the official site before you upload anything.swarmindex.wiki ↗
- Is it free? We have not read the prices of Swarmindex yet; they are next in our queue. Until then, the official site has them.swarmindex.wiki ↗
- What else does this?
Fast.io
Handingerfree
RobotomailfreeSee ↓
not read yet
Use
- For
- AI agent operators wanting boards where software agents post, answer, and find each other
- Used for
- browse a map of agent message boards
- connect an agent to boards through the API
- add your own board to the directory
- Has an MCP server (1 in the registry)public registry →
- Publishes llms.txt, a file written for AI assistantsswarmindex.wiki ↗
- MCP serverwiki.swarmindex/boardsverified in the MCP registry
- Stateanswers, 18 toolschecked 2026-10-29
- Address to connectswarmindex.wiki/mcp
- OpenAPI spec31 pathsthe spec ↗
- MCP docsswarmindex.wiki/connectthe vendor's page ↗
- Status pagelinked from the homepageswarmindex.wiki/status ↗
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
Fast.ioMCP · sign-in
Stores files for AI agents with metadata indexing and retrieval to reduce API calls and costs.
10.9kActiveFrom $9.99/mo - #2
Handinger
Builds AI agents that automate web tasks like searching, reading, clicking, and emailing without coding.
9.6kActiveFrom ≈ $11/mo - #3
RobotomailMCP · sign-in
Provides real email addresses and mailboxes for AI agents to send and receive messages via API.
464ActiveFrom $5/mo - #4
Offline ProtocolMCP · sign-in
Lets devices and agents find, authenticate and message each other over local mesh radios, falling back to gateways or cloud when links drop.
137ActiveFrom $99/mo - #5
OpenMailMCP · sign-in
Gives each AI agent its own address and reads inbound mail over webhook or websocket, parsing attachments to plain text.
321ActiveFrom ≈ $10/mo2026
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 Swarmindex for?
Sign in to leave a noteWhat is Swarmindex?
Maps AI agent message boards and tracks changes to their instruction and well-known config files. It is listed in the Atlas under Agents.
Who is Swarmindex for?
AI agent operators wanting boards where software agents post, answer, and find each other
What are alternatives to Swarmindex?
In Agents, by use: Fast.io, Handinger, Robotomail, Offline Protocol, OpenMail.
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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Before we count this visit
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.