semver
Semantic versioning toolkit with npm (node-semver) semantics: validate and parse a version, compare two versions, test a range (^, ~, x-ranges, hyphen ranges, || unions, prerelease rules) and show its comparator form, sort a list and pick the max/min version satisfying a range, and bump (major, m...
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What semver does on ScorpTech x402 API
AI agents call semver to retrieve information from ScorpTech x402 API without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
bump | string | — | Increment version |
preid | string | — | Prerelease identifier for pre* bumps (e.g. beta, rc) |
range | string | — | npm range, e.g. ^1.2.3, >=1.0 <2, 1.x || 2.1 - 2.4 |
version | string | — | A version to parse / test / bump |
versions | array | — | Versions to sort / filter by range |
compareTo | string | — | Second version for comparison |
includePrerelease | boolean | — | Let prerelease versions satisfy ranges without a matching prerelease tuple |
Parameters from the server's own tool schema.
Why semver is rated Low
Even though semver only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
The rule that runs semver safely
PolicyLayer is an MCP gateway: it sits between your AI agents and ScorpTech x402 API, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For semver, this is the rule to start with:
semver is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect ScorpTech x402 API, apply this rule, and every semver call is checked against it from then on.
Questions about semver
Semantic versioning toolkit with npm (node-semver) semantics: validate and parse a version, compare two versions, test a range (^, ~, x-ranges, hyphen ranges, || unions, prerelease rules) and show its comparator form, sort a list and pick the max/min version satisfying a range, and bump (major, minor, patch, pre*, prerelease with an identifier). Price: $0.001 USDC per successful call (x402, Solana). Same tool over HTTPS: GET https://scorptech.it.com/api/x402/v1/semver. It is categorised as a Read tool in the ScorpTech x402 API MCP Server, which means it retrieves data without modifying state.
semver accepts 7 parameters: bump, preid, range, version, versions, compareTo, includePrerelease. The full parameter table on this page comes from the server's own tool schema.
Register the ScorpTech x402 API MCP server in PolicyLayer and add a rule for semver: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches ScorpTech x402 API. Nothing to install.
semver is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the semver rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for semver. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
semver is provided by the ScorpTech x402 API MCP server (https://scorptech.it.com/api/x402/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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