Perceptlayer
com.perceptlayer/web-dataperceptlayer.comstreamable-httpv1.1.0Scanned
Live web data for AI agents: structured JSON from 248 websites through one API key.
3 tools: 1 change things and 2 only read.
- Reads private data · 0
- Reads text others write · 3
- Can send data out · 2
- 1 finding
Anlyon alternative
1 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 1Claude Code: ask
call_endpointRun one endpoint and return its JSON response.Reads text others writeCan send data out1 finding
Why it is in this group
- The name "call_endpoint" says "call": a word for a change.
- 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.
- outboundThe input takes a URL (input.endpoint): a request to a URL can carry data to whoever runs it.
Findings
- Warn
The server marks "call_endpoint" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
What this check looks forMatched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":true}; The name "call_endpoint" says "call": a word for a change.
Description, as the server wrote it Run one endpoint and return its JSON response. Spends the endpoint's credits from the user's balance on success only; failed calls are free. Pass parameters exactly as get_endpoint lists them (array parameters as JSON arrays). The result reports credits used and remaining. Errors come back with a code: invalid_parameters (fix the parameters and retry), not_found (no data for these parameters), rate_limited or temporarily_unavailable (wait and retry), insufficient_credits, restricted_endpoint (the user must accept the restricted-endpoint terms in their dashboard), invalid_api_key (the MCP server config needs a valid API key). Responses over 100,000 characters are truncated; use paging or limit parameters to fetch less.
Annotations the server declares
- title: Call a data endpoint
- readOnlyHint: true
- destructiveHint: false
- openWorldHint: true
Only reads 2Show 2 read-only tools
get_endpointGet the full parameter list for one endpoint: each parameter's name, type, whether it is required, allowed values and limits, plus an example set of parameters, the credit cost and…Reads text others writeCan send data outNo findings
Why it is in this group
- The name "get_endpoint" says "get": a word for reading.
What it can reach
- untrusted-inputThe input takes a URL (input.endpoint), and the tool reads it: it reads web pages, which anyone can write.
- outboundThe input takes a URL (input.endpoint): a request to a URL can carry data to whoever runs it.
Claude Code: ask, because it is tagged outbound.
Description, as the server wrote it Get the full parameter list for one endpoint: each parameter's name, type, whether it is required, allowed values and limits, plus an example set of parameters, the credit cost and tier. Call this before call_endpoint unless you already know the parameters. Free; no API key needed.
Annotations the server declares
- title: Get endpoint details
- readOnlyHint: true
- openWorldHint: false
search_endpointsFind Perceptlayer endpoints for a website or kind of data.Reads text others writeNo findings
Why it is in this group
- The name "search_endpoints" says "search": a word for reading.
What it can reach
- untrusted-inputThe description's first sentence says "find" and "website": it reads web pages, which anyone can write.
Description, as the server wrote it Find Perceptlayer endpoints for a website or kind of data. The catalogue has 1659 endpoints across 248 sources, so search before calling. Query with the site and the data you want, e.g. "amazon product reviews", "airbnb listing", "linkedin company", "google maps places", "zillow property". Returns compact matches: endpoint ID (pass it to get_endpoint or call_endpoint), name, HTTP method, credits per call, tier ("restricted" endpoints need the account's restricted-endpoint terms accepted) and required parameters. Free; no API key needed.
Annotations the server declares
- title: Search data endpoints
- readOnlyHint: true
- openWorldHint: false
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.
- 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 out2
- 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.
Findings
Matches of fixed checks, with the text they matched.
- Warncall_endpoint
The server marks "call_endpoint" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
What this check looks forMatched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":true}; The name "call_endpoint" says "call": a word for a change.
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 1.1.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http web-data https://api.perceptlayer.com/mcpclaude mcp add --transport http web-data https://api.perceptlayer.com/mcpRun 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__web-data__search_endpoints"
],
"ask": [
"mcp__web-data__get_endpoint",
"mcp__web-data__call_endpoint"
],
"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 web-data. Review it before you use it.
Capability tags behind 3 rules
- mcp__web-data__search_endpoints untrusted-input
- mcp__web-data__get_endpoint untrusted-input, outbound
- mcp__web-data__call_endpoint untrusted-input, outbound
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/com.perceptlayer/web-data/verify?hash=a26a18c446e62d489670418a187c4a063d34f2c8fcd2f73c0d7d0db18da1e937" | jq -e '.changed == false'Pinned hash a26a18c446e6, from Oct 27, 2026, 17:18 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/com.perceptlayer/web-data/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/com.perceptlayer/web-data)Source: MCP Registry. Synced Oct 27, 2026, 17:17 UTC.