Search arXiv papers, download full text, semantic search, citation graphs, and alerts via MCP.
Infobroker is installed from its publisher's own source and answers where it runs, so this marketplace is not in the path of a single call. There is no address here to send one to, and a panel that pretended otherwise would be showing you an answer we made up. Install it and call it from your own client — the Installation tab has the entry for each one.
What it does
Multi-provider research MCP server: unified web search, fact-checking, personal knowledge base.
Quickstart
# 1 — add it to Claude Code
claude mcp add --scope user infobroker-mcp '--' npx -y infobroker
# 2 — ask your agent for something these tools do
# infobroker_search_web, infobroker_fetch_page, infobroker_inspect_providers and 4 more
Infobroker costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.
Where are you running it?
Every route below installs the same thing and ends at the same approval screen. This one runs on your machine: your client starts Infobroker as a process under your own user, with your files and your network, so the tool surface below is what it can do to your computer rather than to a server somewhere else. Its scan result is on the Security tab — read the surface before you approve it.
This is a public server: you run it yourself and this marketplace is not in the path. You need Node.js — the current LTS (24) is the safe choice; npx comes with it. Claude Code registers it in one command; --scope user makes it available in every project. The '--' is in quotes so that PowerShell passes it on.
claude mcp add --scope user infobroker-mcp '--' npx -y infobrokerReconnect, or start a new session, and the tools appear in the model’s tool list.
One config entry your client uses to start the process locally. A local server runs with your file system and your network, which is why it is priced without metering.
7 tools, with what each one reads, writes and reaches shown before you agree — the same list on every route above. Read the tool surface.
Tool surface
What the model actually sees. Descriptions are diffed on every release — see version history.
Search the web, encyclopedia, academic, and code sources through one interface with automatic provider selection and a fallback chain. Use when you need broad or batched search, query autocomplete (suggest), query expansion (expand), ranked passages from the top pages (deep), or a multi-variant…
| Parameter | Type | Required | Notes |
|---|---|---|---|
| query | yes | Search query: a single string, or up to five strings searched in parallel | |
| provider | string | no | Provider slug (auto-select if omitted) |
| max_results | number | no | Number of results to return (1-30, default 8) |
| safe_search | string | no | Safe-search filtering: on, off, or strict (default on) |
| time_range | string | no | Restrict results to day, week, month, or year |
| page | number | no | Results page number (default 1) |
| priority | string | no | Route by intent: speed, quality, privacy, or free_only |
| suggest | boolean | no | Return query-autocomplete strings instead of results (default false) |
| expand | boolean | no | Return query-expansion strings instead of search results |
| deep | boolean | no | Read the top results and return each page's ranked passages against the query |
| research | boolean | no | Research compile: fan out to derived query variants and deep-read each, returning passages grouped by variant (default off) |
| content_type | string | no | Source kind to search: docs, issue, changelog, blog, spec, or all (default all) |
| region | string | no | ISO region/country code (e.g. 'us-en', 'DE') |
Fetch a URL and extract clean content via a renderer (Jina Reader by default; native-HTTP, Wikipedia, Internet Archive, arXiv, and Stack Exchange alternatives). Use when you have a URL and need readable text, passages ranked against a question, or the page's last-updated date. Do NOT use for topic…
| Parameter | Type | Required | Notes |
|---|---|---|---|
| url | yes | URL to fetch: a single URL, or up to five URLs fetched in parallel | |
| renderer | string | no | Renderer: jina (default), native_fetch, wikipedia, internet_archive, arxiv, or stack_exchange |
| max_length | number | no | Maximum characters to return (default 50000) |
| question | string | no | Question to extract ranked passages for, instead of returning the whole page |
| passage_size | number | no | Target words per passage (default from config) |
| max_passages | number | no | Number of passages to return (default from config) |
| detect_date | boolean | no | Detect and report the page's last-updated date (default from config) |
| crawl | boolean | no | Bounded same-origin crawl: recursively fetch same-origin pages up to config caps (default off) |
| extract | boolean | no | Return structured metadata (JSON-LD, OpenGraph, microdata) alongside the content (default off) |
Inspect configured search providers: list their state, run a live health check, or report build and spec identity. Use when searches return empty or slow results and you want provider status, quota, or latency, or when choosing which backend to trust. Do NOT use to search (use…
| Parameter | Type | Required | Notes |
|---|---|---|---|
| action | string | yes | Operation to perform |
| provider | string | no | Provider slug (required for health) |
| status | string | no | Filter for list action |
Verify a contested claim against independent sources and return confidence-scored findings. Use when a claim is high-stakes or contested and you need agreement, contradiction, and gaps surfaced with confidence scores. Do NOT use for simple lookups or broad search (use infobroker_search_web) or…
| Parameter | Type | Required | Notes |
|---|---|---|---|
| query | string | yes | Search query |
| max_iterations | number | no | Maximum search-refinement passes (1-10, default 5) |
| confidence_threshold | number | no | Minimum confidence to report a finding as confirmed (0-1, default 0.8) |
| providers | array | no | Optional array of provider slugs to limit the search to |
| priority | string | no | Route the corroboration pool by intent |
Manage the local knowledge base: search cached content, ingest text or URLs, list/get/delete entries, view stats, and manage at-rest encryption. Use when you need to archive a generated report (ingest with source_type 'report' and save_to 'kb'), revisit stored content, or manage encryption keys.…
| Parameter | Type | Required | Notes |
|---|---|---|---|
| action | string | yes | Operation to perform |
| operation | string | no | Sub-operation for the 'encryption' action |
| key_file | string | no | Path to a key file (generate_key writes here; rekey reads the target key from here). Never pass the secret itself — only a file path. |
| query | string | no | Search query (for search action) |
| text | string | no | Raw text to index (for ingest action) |
| url | string | no | URL to fetch and index (for ingest action) |
| title | string | no | Document/report title |
| collection | string | no | Collection name |
| source_type | string | no | Source type (tag on ingest; filter on search/list) |
| freshness_tier | string | no | Freshness tier tag on ingest (e.g. 'report', 'evergreen') |
| last_updated | string | no | Source last-updated date to store (e.g. '2026-08-24'); auto-detected from fetched URLs when omitted |
| save_to | string | no | Where to save (ingest action): kb, disk, or both. Default kb |
| format | string | no | File format for disk save |
| source_url | string | no | Source URL filter (get/delete action) or identity for ingest |
| max_results | number | no | Maximum results to return (1-50, default 8) |
Re-read the configuration file and apply provider, rate-limit, and knowledge-base changes without restarting; active connections are preserved. Use when you have edited config.json or config.local.json, or when passing patch to change configuration programmatically. Do NOT use to inspect…
| Parameter | Type | Required | Notes |
|---|---|---|---|
| patch | object | no | Partial configuration deep-merged into the user layer (config.local.json) before reloading; unknown top-level keys are rejected and the previous layer is backed up |
| migrate | boolean | no | Back up and apply registered user-configuration-layer migrations before reloading (default false) |
Return academic references for a query as BibTeX citations with title, authors, year, venue, and URL. Use when scholarly writing needs a reference list. Do NOT use for general web search (use infobroker_search_web) or contested-claim verification (use infobroker_verify_claims). query is a…
| Parameter | Type | Required | Notes |
|---|---|---|---|
| query | string | yes | Search query |
| max_results | number | no | Maximum references to return (1-30, default 8) |
- Every tool, no call limit
- No card, and mcprush charges nothing for it
- Source published under MIT
- Runs on your machine — nothing of it reaches our gateway
- Nothing to cap, because mcprush bills nothing
What counts against your monthly calls
| Tool | Unit | Calls used | Out of the allowance |
|---|
Nothing here is billable: mcprush charges nothing to install Infobroker or to call it, at any volume.
Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.
| Term | Level | What it prices | Points |
|---|---|---|---|
| capability-exposure | moderate | capability blast radius (moderate) — client exposure if the model is manipulated | −3 |
| verification-discount | source | publisher verification (provenance) — cryptographic build provenance ties the artifact to its source | −0 |
| coverage-honesty | source | inspection depth (source) — how much of the target the scan could see | −0 |
What the scan could actually read
A grade is only as meaningful as its coverage, so the scanner publishes its own depth before it publishes its result.
Tools were statically extracted from the published source (7 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, scan the running server: --command "npx -y <package>".
Capability — what it could do if the model were manipulated
Tags derived from each tool’s schema and the implementation, not from what the tool calls itself. moderate is the level these add up to.
| Tool | Capability tags | Why the tag was assigned |
|---|---|---|
| infobroker_search_web | untrusted-input | untrusted-input: keyword "fetch", declares openWorldHint: true (interacts with entities outside the server) |
| infobroker_fetch_page | untrusted-inputexternal-sink | untrusted-input: keyword "fetch"; external-sink: declares readOnlyHint: false, openWorldHint: true |
| infobroker_inspect_providers | untrusted-input | untrusted-input: keyword "fetch", declares openWorldHint: true (interacts with entities outside the server) |
| infobroker_verify_claims | untrusted-inputexternal-sink | untrusted-input: keyword "search web"; external-sink: declares readOnlyHint: false, openWorldHint: true |
| infobroker_manage_kb | untrusted-inputexternal-sink | untrusted-input: keyword "fetch"; external-sink: declares readOnlyHint: false, destructiveHint: true, openWorldHint: true |
| infobroker_reload_config | external-sink | external-sink: declares readOnlyHint: false, destructiveHint: true, openWorldHint: true |
| infobroker_get_citations | untrusted-input | untrusted-input: keyword "web_search", declares openWorldHint: true (interacts with entities outside the server) |
Toxic-flow graph
The lethal trifecta, checked as a graph rather than as a checklist: untrusted input, a sensitive source and an external sink have to meet before there is a path worth worrying about.
Supply chain and provenance
This is the first scan of this surface here, so there is nothing yet to compare it against.
Every result on this tab comes from one deterministic pass over the published package — offline, rule by rule, and auditable line by line above. Same methodology version, same bytes, same score.
Release history
Always latest — the install command names no version, so it installs the newest release when it runs; the current release on file is 2026.10.2. Pin a release below and the command asks for exactly that one.
No release note was published with this version.
No release note was published with this version.
No release note was published with this version.
No release note was published with this version.
No release note was published with this version.
No release note was published with this version.
- The version this listing was on when mcprush began following its releases. The registry was not asked when it shipped, so this row carries no date.
One review per account, from a signed-in account that does not publish this listing. Nothing else is asked — you can say what you think before you install it. Publishers can reply once per review, and a review can be edited or deleted by whoever wrote it.
Any signed-in account that does not publish Infobroker can review it, once — before installing it or after. A review from an account that has installed it is marked as one.
Nobody has reviewed this listing. The rating on the card is the mean of the reviews written here and nothing else, so there is no rating until somebody writes the first — which takes a signed-in account that does not publish it, and nothing else.