lobsters WebMCP
Browser tool configuration for lobsters
URL Pattern: ^https?://lobste\.rs(/.*)?$
Allowed Extra Domains: example.com, lobste.rs
Tools (4)
lobsters_active()
Lobste.rs most active discussions
Parameters
limit
number
- Number of stories
JavaScript Handler
(params) => {
const args = Object.assign({"limit": 20}, params || {});
let data = null;
let __wbContextUrl = globalThis.location?.href || '';
let __wbContextDocument = globalThis.document || null;
const __wbDefault = (value, fallback) => (value === undefined || value === null || value === '' ? fallback : value);
const __wbJoin = (value, separator) => Array.isArray(value) ? value.join(separator) : (value ?? '');
const __wbGet = (value, path) => {
if (!path) return value;
return String(path).split('.').reduce((acc, part) => (acc == null ? undefined : acc[part]), value);
};
const __wbBaseUrl = () => (__wbContextUrl || globalThis.location?.href || 'https://example.com/');
const __wbResolve = (target, base) => {
if (target == null) return '';
const text = String(target);
try {
return /^https?:/i.test(text) ? text : new URL(text, base || __wbBaseUrl()).toString();
} catch (_error) {
return text;
}
};
const __wbFetch = async (target, options) => {
const url = __wbResolve(target, __wbBaseUrl());
const resp = await globalThis.fetch(url, Object.assign({ credentials: 'include' }, options || {}));
if (!resp.ok) {
throw new Error(`HTTP ${resp.status} for ${url}`);
}
const text = await resp.text();
try {
return { url, text, data: JSON.parse(text) };
} catch (_error) {
return { url, text, data: text };
}
};
return (async () => {
{
const __wbResp = await __wbFetch("https://lobste.rs/active.json");
data = __wbResp.data;
}
{
const source = Array.isArray(data) ? data : (data == null ? [] : [data]);
data = source.map((item, index) => ({
"rank": index + 1,
"title": item.title,
"score": item.score,
"author": item.submitter_user,
"comments": item.comment_count,
"tags": __wbJoin((item.tags), ', '),
"url": item.comments_url,
}));
}
if (Array.isArray(data)) data = data.slice(0, Number(args.limit) || 0);
return data;
})();
}
lobsters_hot()
Lobste.rs hottest stories
Parameters
limit
number
- Number of stories
JavaScript Handler
(params) => {
const args = Object.assign({"limit": 20}, params || {});
let data = null;
let __wbContextUrl = globalThis.location?.href || '';
let __wbContextDocument = globalThis.document || null;
const __wbDefault = (value, fallback) => (value === undefined || value === null || value === '' ? fallback : value);
const __wbJoin = (value, separator) => Array.isArray(value) ? value.join(separator) : (value ?? '');
const __wbGet = (value, path) => {
if (!path) return value;
return String(path).split('.').reduce((acc, part) => (acc == null ? undefined : acc[part]), value);
};
const __wbBaseUrl = () => (__wbContextUrl || globalThis.location?.href || 'https://example.com/');
const __wbResolve = (target, base) => {
if (target == null) return '';
const text = String(target);
try {
return /^https?:/i.test(text) ? text : new URL(text, base || __wbBaseUrl()).toString();
} catch (_error) {
return text;
}
};
const __wbFetch = async (target, options) => {
const url = __wbResolve(target, __wbBaseUrl());
const resp = await globalThis.fetch(url, Object.assign({ credentials: 'include' }, options || {}));
if (!resp.ok) {
throw new Error(`HTTP ${resp.status} for ${url}`);
}
const text = await resp.text();
try {
return { url, text, data: JSON.parse(text) };
} catch (_error) {
return { url, text, data: text };
}
};
return (async () => {
{
const __wbResp = await __wbFetch("https://lobste.rs/hottest.json");
data = __wbResp.data;
}
{
const source = Array.isArray(data) ? data : (data == null ? [] : [data]);
data = source.map((item, index) => ({
"rank": index + 1,
"title": item.title,
"score": item.score,
"author": item.submitter_user,
"comments": item.comment_count,
"tags": __wbJoin((item.tags), ', '),
"url": item.comments_url,
}));
}
if (Array.isArray(data)) data = data.slice(0, Number(args.limit) || 0);
return data;
})();
}
lobsters_newest()
Lobste.rs newest stories
Parameters
limit
number
- Number of stories
JavaScript Handler
(params) => {
const args = Object.assign({"limit": 20}, params || {});
let data = null;
let __wbContextUrl = globalThis.location?.href || '';
let __wbContextDocument = globalThis.document || null;
const __wbDefault = (value, fallback) => (value === undefined || value === null || value === '' ? fallback : value);
const __wbJoin = (value, separator) => Array.isArray(value) ? value.join(separator) : (value ?? '');
const __wbGet = (value, path) => {
if (!path) return value;
return String(path).split('.').reduce((acc, part) => (acc == null ? undefined : acc[part]), value);
};
const __wbBaseUrl = () => (__wbContextUrl || globalThis.location?.href || 'https://example.com/');
const __wbResolve = (target, base) => {
if (target == null) return '';
const text = String(target);
try {
return /^https?:/i.test(text) ? text : new URL(text, base || __wbBaseUrl()).toString();
} catch (_error) {
return text;
}
};
const __wbFetch = async (target, options) => {
const url = __wbResolve(target, __wbBaseUrl());
const resp = await globalThis.fetch(url, Object.assign({ credentials: 'include' }, options || {}));
if (!resp.ok) {
throw new Error(`HTTP ${resp.status} for ${url}`);
}
const text = await resp.text();
try {
return { url, text, data: JSON.parse(text) };
} catch (_error) {
return { url, text, data: text };
}
};
return (async () => {
{
const __wbResp = await __wbFetch("https://lobste.rs/newest.json");
data = __wbResp.data;
}
{
const source = Array.isArray(data) ? data : (data == null ? [] : [data]);
data = source.map((item, index) => ({
"rank": index + 1,
"title": item.title,
"score": item.score,
"author": item.submitter_user,
"comments": item.comment_count,
"tags": __wbJoin((item.tags), ', '),
"url": item.comments_url,
}));
}
if (Array.isArray(data)) data = data.slice(0, Number(args.limit) || 0);
return data;
})();
}
lobsters_tag()
Lobste.rs stories by tag
Parameters
tag
string
required
- Tag name (e.g. programming, rust, security, ai)
limit
number
- Number of stories
JavaScript Handler
(params) => {
const args = Object.assign({"limit": 20}, params || {});
let data = null;
let __wbContextUrl = globalThis.location?.href || '';
let __wbContextDocument = globalThis.document || null;
const __wbDefault = (value, fallback) => (value === undefined || value === null || value === '' ? fallback : value);
const __wbJoin = (value, separator) => Array.isArray(value) ? value.join(separator) : (value ?? '');
const __wbGet = (value, path) => {
if (!path) return value;
return String(path).split('.').reduce((acc, part) => (acc == null ? undefined : acc[part]), value);
};
const __wbBaseUrl = () => (__wbContextUrl || globalThis.location?.href || 'https://example.com/');
const __wbResolve = (target, base) => {
if (target == null) return '';
const text = String(target);
try {
return /^https?:/i.test(text) ? text : new URL(text, base || __wbBaseUrl()).toString();
} catch (_error) {
return text;
}
};
const __wbFetch = async (target, options) => {
const url = __wbResolve(target, __wbBaseUrl());
const resp = await globalThis.fetch(url, Object.assign({ credentials: 'include' }, options || {}));
if (!resp.ok) {
throw new Error(`HTTP ${resp.status} for ${url}`);
}
const text = await resp.text();
try {
return { url, text, data: JSON.parse(text) };
} catch (_error) {
return { url, text, data: text };
}
};
return (async () => {
{
const __wbResp = await __wbFetch(`https://lobste.rs/t/${args.tag}.json`);
data = __wbResp.data;
}
{
const source = Array.isArray(data) ? data : (data == null ? [] : [data]);
data = source.map((item, index) => ({
"rank": index + 1,
"title": item.title,
"score": item.score,
"author": item.submitter_user,
"comments": item.comment_count,
"tags": __wbJoin((item.tags), ', '),
"url": item.comments_url,
}));
}
if (Array.isArray(data)) data = data.slice(0, Number(args.limit) || 0);
return data;
})();
}
WebMCP clients
Use mcp-chrome, or fetch the same tools from the public API in your own browser automation runtime.
How to Use WebMCP
WebMCP tools are designed for browser extensions or automation frameworks. The browser extension matches the current URL against the pattern and executes the JavaScript handler when the tool is invoked.
API Endpoint:
GET /api/webmcp/match?url=https://www.lobsters.com/...
Third-party clients can use the same endpoint as mcp-chrome. Execute the returned JavaScript handler in your own browser page context.