Peerlytics Data
xyz.peerlytics/peerlytics-datapeerlytics.xyzstreamable-httpv1.0.0Scanned
Peer protocol seller-rate and liquidity history on Base. Paid aggregate reads via x402 USDC.
3 tools: 2 change things and 1 only read.
- Reads private data · 0
- Reads text others write · 3
- Can send data out · 0
- No findings
Tools listed without sign-in. Remote posture
Anlyon alternative
2 of these tools change something. Run those as governed actions.
Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.
Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.
Import an OpenAPI spec →Tools
Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.
3 tools
Changes things 2Claude Code: ask
peerlytics_liquidity_depthHourly public USDC liquidity for one payment platform and currency: listed depth, sellers, best premium, largest order and depth within 0.5% to 3% of mid-market, for up to the last…Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it Hourly public USDC liquidity for one payment platform and currency: listed depth, sellers, best premium, largest order and depth within 0.5% to 3% of mid-market, for up to the last 168 recorded hours. Costs $0.05 in USDC on Base via x402.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
- title: Liquidity depth history
peerlytics_weekly_seller_ratesWeekly realised seller premiums against the ECB reference for one currency across platforms, or one platform route, for every ISO week since the first Base fill.Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it Weekly realised seller premiums against the ECB reference for one currency across platforms, or one platform route, for every ISO week since the first Base fill. Withheld weeks keep only the reason. Costs $0.05 in USDC on Base via x402.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
- title: Weekly seller rates
Only reads 1Show 1 read-only tool
peerlytics_paid_datasetsList the paid Peer datasets with coverage, columns, prices and x402 download URLs.Reads text others writeNo findings
Why it is in this group
- The description's first verb is "list": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it List the paid Peer datasets with coverage, columns, prices and x402 download URLs. Free.
Annotations the server declares
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
- title: Peerlytics paid datasets
This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.
Exfil surface
Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.
No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or outbound.
- Reads private data0
- Reads files, mail, messages, databases, secrets, calendars or repositories.
- Reads text others write3
- Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
- Can send data out0
- Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.
Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.
Remote posture
What anyone on the internet sees at the remote endpoint: an anonymous initialize and tools/list, and the public OAuth metadata.
Looked at Oct 22, 2026, 15:16 UTC, unchanged since Oct 22, 2026. No credentials were sent and no tool was called. What is looked at.
- Reachable
- yes
- HTTP status of an anonymous initialize
- 200
- tools/list served without credentials
- yes
- Tools that change things, listed without credentials
- 2
- Protocol version
- 2025-06-18
- WWW-Authenticate on 401
- not observed
- resource_metadata in WWW-Authenticate
- not observed
- RFC 9728 protected resource metadata
- not observed
- Authorization servers
- not observed
- Legacy HTTP+SSE transport
- no
- Dynamic client registration
- not observed
- Client ID metadata documents
- not observed
- WarnThe whole server
The endpoint served tools/list without credentials, and the list has 2 tools that change things (2 write). Whether a call also works without credentials was not tested: tools are never called.
What this check looks forMatched text
https://peerlytics.xyz/api/mcp/data: tools/list returned 3 tools to an anonymous client, including peerlytics_weekly_seller_rates (write), peerlytics_liquidity_depth (write)
Findings
Matches of fixed checks, with the text they matched.
No check matched anything in these tool definitions. That is not a safety guarantee.
History
Changes to its tool definitions and to its remote endpoint, newest first.
No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.
Install
Pinned to version 1.0.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http peerlytics-data https://peerlytics.xyz/api/mcp/dataclaude mcp add --transport http peerlytics-data https://peerlytics.xyz/api/mcp/dataRun in a terminal.
Claude Code permissions
Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [
"mcp__peerlytics-data__peerlytics_paid_datasets"
],
"ask": [
"mcp__peerlytics-data__peerlytics_weekly_seller_rates",
"mcp__peerlytics-data__peerlytics_liquidity_depth"
],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as peerlytics-data. Review it before you use it.
Capability tags behind 3 rules
- mcp__peerlytics-data__peerlytics_paid_datasets untrusted-input
- mcp__peerlytics-data__peerlytics_weekly_seller_rates untrusted-input
- mcp__peerlytics-data__peerlytics_liquidity_depth untrusted-input
Pin
Keep the decision: fail CI when the tools change, follow every change, or show a badge.
Pin in CI
Fail a build when the tools you reviewed are not the tools the server serves today.
curl -s "https://anlyon.dev/api/v1/servers/xyz.peerlytics/peerlytics-data/verify?hash=4822cbcd6cc9825a74e1bd18d7264a876bc42e2289d8612884588fe8679a704b" | jq -e '.changed == false'Pinned hash 4822cbcd6cc9, from Oct 21, 2026, 19:21 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/xyz.peerlytics/peerlytics-data/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/xyz.peerlytics/peerlytics-data)Source: MCP Registry. Synced Oct 21, 2026, 18:55 UTC.