MCP Retrieval

io.github.Role1776/mcp-retrievalv0.1.7Web Scraping

Local Go MCP server: DuckDuckGo/Bing web + image search, readability scraping to Markdown.

The current version, v0.1.7, was published to the official MCP registry on 2026-08-17. It is distributed as the Docker image ghcr.io/role1776/mcp-retrieval:0.1.7, filed under Web Scraping by this index, and declares 23 environment variables. Removals and unreachable sources are measured across every server this index tracks, contract drift across the servers that answer in consecutive snapshots; the index's current counts put this record in context.

In-path gate · all MCP tools

Using MCP Retrieval in Claude, Cursor, Gemini CLI, Cline, or Zed?

MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).

Install the mcpindex gate (one command)

Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less

uv tool install mcpindex-gate && mcpindex-config-wire

Auditable install path →Watch it hold a drift →

Trust verdict · v1 advisory · method

REVIEWstatus: PARTIALfresh until 2026-10-02 15:27 UTC

screened 2026-08-15tier: scannedgranularity: description-levelsource: registry

Semantic screen found no manipulation pattern in the description. Conformance probe not yet run.

mcpindex.integrity.descriptionpassINFO

evidence“No malicious instructions found”via static_description

Limits of this verdict

- Semantic screen only - the deterministic conformance probe has not run on this server
- Confidence is reported but not yet calibrated (v1)
- Screen reads the tool description, not the live behavior
- advisory
- registry description only no input schema
- screen model 8b
- Still current: the description we screened is unchanged, re-checked against the registry
- The registry listing (version, packages, links) changed after this screen ran - the description we assessed did not

Semantic screen: an LLM judge reads the tool description for hidden instructions (status PARTIAL). A pass means the description is not lying, not that the tool is safe: a high-capability tool with an honest description still warrants caution. The deterministic conformance probe has not been run on this server yet, so the screen here is semantic-only. Posture: advisory. Confidences are reported but not yet calibrated (calibrated=false at v1). Full verdict history is not shown on this page.

Own this server? Screen its description →

That verdict was true at screening time (snapshot 2026-09-25).

Contracts can change after screening, with no version bump. The gate pins MCP Retrieval’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.

See your first HOLD in 2 minutes →

Cite this record

People vet a server before wiring it in. One line on your project site or docs answers that with an independent record: screening verdict, registry provenance, contract drift history. It stays current as new screens and drift events land.

Markdown

[Independent trust record for MCP Retrieval](https://mcpindex.ai/server/io-github-role1776-mcp-retrieval) - screening verdict, registry provenance, and contract drift monitoring.

HTML

<a href="https://mcpindex.ai/server/io-github-role1776-mcp-retrieval">Independent trust record for MCP Retrieval</a> - screening verdict, registry provenance, and contract drift monitoring.

Embed this badge

A live verdict badge for your README or listing. It reflects the current screen, links back here, and updates when the verdict does.

Markdown

[![mcpindex](https://mcpindex.ai/api/v1/badge/io-github-role1776-mcp-retrieval)](https://mcpindex.ai/server/io-github-role1776-mcp-retrieval)

HTML

<a href="https://mcpindex.ai/server/io-github-role1776-mcp-retrieval"><img src="https://mcpindex.ai/api/v1/badge/io-github-role1776-mcp-retrieval" alt="mcpindex verdict" height="20" /></a>

Environment variables

MCP_TRANSPORT

stdio (client spawns the process) or http (streamable HTTP listener).

MCP_NAME

Server name reported in the MCP initialize handshake.

MCP_PATH

HTTP path the MCP endpoint is served on. Used only when MCP_TRANSPORT=http.

SERVER_PORT

TCP port to listen on. Used only when MCP_TRANSPORT=http.

SERVER_READ_TIMEOUT

HTTP read timeout as a Go duration. Used only when MCP_TRANSPORT=http.

SERVER_WRITE_TIMEOUT

HTTP write timeout as a Go duration. Used only when MCP_TRANSPORT=http.

LOG_MODE

local (text, debug) or prod (JSON, info). Logs go to stderr.

MAX_IDLE_CONNS_PER_HOST

Idle connections the outbound HTTP client keeps per host.

MAX_QUERIES

Maximum queries or URLs accepted in one call.

DEFAULT_RESULTS

Snippets returned per query when the call does not ask for a count.

MAX_RESULTS

Upper bound for snippets per query.

DEFAULT_IMAGES

Images returned per query when the call does not ask for a count.

MAX_IMAGES

Upper bound for images per query.

DEFAULT_TIMEOUT_MS

Per-call timeout in milliseconds when the call does not request one.

MIN_TIMEOUT_MS

Lowest timeout a call may request, in milliseconds.

MAX_TIMEOUT_MS

Highest timeout a call may request, in milliseconds.

DEFAULT_DOCUMENT_CHARS

Characters kept per scraped page when the call does not ask for a limit.

MAX_DOCUMENT_CHARS

Upper bound for characters kept per scraped page.

PROXY_SCHEME

Outbound proxy scheme. Optional; set all five PROXY_* variables or none.

PROXY_HOST

Outbound proxy host. Enables per-request rotating proxy sessions.

PROXY_PORT

Outbound proxy port. Required when PROXY_HOST is set.

PROXY_LOGIN

secret

Outbound proxy username. Required when PROXY_HOST is set.

PROXY_PASSWORD

secret

Outbound proxy password. Required when PROXY_HOST is set.

MCP_TRANSPORT

stdio (client spawns the process) or http (streamable HTTP listener).

MCP_NAME

Server name reported in the MCP initialize handshake.

MCP_PATH

HTTP path the MCP endpoint is served on. Used only when MCP_TRANSPORT=http.

SERVER_PORT

TCP port to listen on. Used only when MCP_TRANSPORT=http.

SERVER_READ_TIMEOUT

HTTP read timeout as a Go duration. Used only when MCP_TRANSPORT=http.

SERVER_WRITE_TIMEOUT

HTTP write timeout as a Go duration. Used only when MCP_TRANSPORT=http.

LOG_MODE

local (text, debug) or prod (JSON, info). Logs go to stderr.

MAX_IDLE_CONNS_PER_HOST

Idle connections the outbound HTTP client keeps per host.

MAX_QUERIES

Maximum queries or URLs accepted in one call.

DEFAULT_RESULTS

Snippets returned per query when the call does not ask for a count.

MAX_RESULTS

Upper bound for snippets per query.

DEFAULT_IMAGES

Images returned per query when the call does not ask for a count.

MAX_IMAGES

Upper bound for images per query.

DEFAULT_TIMEOUT_MS

Per-call timeout in milliseconds when the call does not request one.

MIN_TIMEOUT_MS

Lowest timeout a call may request, in milliseconds.

MAX_TIMEOUT_MS

Highest timeout a call may request, in milliseconds.

DEFAULT_DOCUMENT_CHARS

Characters kept per scraped page when the call does not ask for a limit.

MAX_DOCUMENT_CHARS

Upper bound for characters kept per scraped page.

PROXY_SCHEME

Outbound proxy scheme. Optional; set all five PROXY_* variables or none.

PROXY_HOST

Outbound proxy host. Enables per-request rotating proxy sessions.

PROXY_PORT

Outbound proxy port. Required when PROXY_HOST is set.

PROXY_LOGIN

secret

Outbound proxy username. Required when PROXY_HOST is set.

PROXY_PASSWORD

secret

Outbound proxy password. Required when PROXY_HOST is set.

MCP_TRANSPORT

stdio (client spawns the process) or http (streamable HTTP listener).

MCP_NAME

Server name reported in the MCP initialize handshake.

MCP_PATH

HTTP path the MCP endpoint is served on. Used only when MCP_TRANSPORT=http.

SERVER_PORT

TCP port to listen on. Used only when MCP_TRANSPORT=http.

SERVER_READ_TIMEOUT

HTTP read timeout as a Go duration. Used only when MCP_TRANSPORT=http.

SERVER_WRITE_TIMEOUT

HTTP write timeout as a Go duration. Used only when MCP_TRANSPORT=http.

LOG_MODE

local (text, debug) or prod (JSON, info). Logs go to stderr.

MAX_IDLE_CONNS_PER_HOST

Idle connections the outbound HTTP client keeps per host.

MAX_QUERIES

Maximum queries or URLs accepted in one call.

DEFAULT_RESULTS

Snippets returned per query when the call does not ask for a count.

MAX_RESULTS

Upper bound for snippets per query.

DEFAULT_IMAGES

Images returned per query when the call does not ask for a count.

MAX_IMAGES

Upper bound for images per query.

DEFAULT_TIMEOUT_MS

Per-call timeout in milliseconds when the call does not request one.

MIN_TIMEOUT_MS

Lowest timeout a call may request, in milliseconds.

MAX_TIMEOUT_MS

Highest timeout a call may request, in milliseconds.

DEFAULT_DOCUMENT_CHARS

Characters kept per scraped page when the call does not ask for a limit.

MAX_DOCUMENT_CHARS

Upper bound for characters kept per scraped page.

PROXY_SCHEME

Outbound proxy scheme. Optional; set all five PROXY_* variables or none.

PROXY_HOST

Outbound proxy host. Enables per-request rotating proxy sessions.

PROXY_PORT

Outbound proxy port. Required when PROXY_HOST is set.

PROXY_LOGIN

secret

Outbound proxy username. Required when PROXY_HOST is set.

PROXY_PASSWORD

secret

Outbound proxy password. Required when PROXY_HOST is set.

MCP_TRANSPORT

stdio (client spawns the process) or http (streamable HTTP listener).

MCP_NAME

Server name reported in the MCP initialize handshake.

MCP_PATH

HTTP path the MCP endpoint is served on. Used only when MCP_TRANSPORT=http.

SERVER_PORT

TCP port to listen on. Used only when MCP_TRANSPORT=http.

SERVER_READ_TIMEOUT

HTTP read timeout as a Go duration. Used only when MCP_TRANSPORT=http.

SERVER_WRITE_TIMEOUT

HTTP write timeout as a Go duration. Used only when MCP_TRANSPORT=http.

LOG_MODE

local (text, debug) or prod (JSON, info). Logs go to stderr.

MAX_IDLE_CONNS_PER_HOST

Idle connections the outbound HTTP client keeps per host.

MAX_QUERIES

Maximum queries or URLs accepted in one call.

DEFAULT_RESULTS

Snippets returned per query when the call does not ask for a count.

MAX_RESULTS

Upper bound for snippets per query.

DEFAULT_IMAGES

Images returned per query when the call does not ask for a count.

MAX_IMAGES

Upper bound for images per query.

DEFAULT_TIMEOUT_MS

Per-call timeout in milliseconds when the call does not request one.

MIN_TIMEOUT_MS

Lowest timeout a call may request, in milliseconds.

MAX_TIMEOUT_MS

Highest timeout a call may request, in milliseconds.

DEFAULT_DOCUMENT_CHARS

Characters kept per scraped page when the call does not ask for a limit.

MAX_DOCUMENT_CHARS

Upper bound for characters kept per scraped page.

PROXY_SCHEME

Outbound proxy scheme. Optional; set all five PROXY_* variables or none.

PROXY_HOST

Outbound proxy host. Enables per-request rotating proxy sessions.

PROXY_PORT

Outbound proxy port. Required when PROXY_HOST is set.

PROXY_LOGIN

secret

Outbound proxy username. Required when PROXY_HOST is set.

PROXY_PASSWORD

secret

Outbound proxy password. Required when PROXY_HOST is set.

MCP_TRANSPORT

stdio (client spawns the process) or http (streamable HTTP listener).

MCP_NAME

Server name reported in the MCP initialize handshake.

MCP_PATH

HTTP path the MCP endpoint is served on. Used only when MCP_TRANSPORT=http.

SERVER_PORT

TCP port to listen on. Used only when MCP_TRANSPORT=http.

SERVER_READ_TIMEOUT

HTTP read timeout as a Go duration. Used only when MCP_TRANSPORT=http.

SERVER_WRITE_TIMEOUT

HTTP write timeout as a Go duration. Used only when MCP_TRANSPORT=http.

LOG_MODE

local (text, debug) or prod (JSON, info). Logs go to stderr.

MAX_IDLE_CONNS_PER_HOST

Idle connections the outbound HTTP client keeps per host.

MAX_QUERIES

Maximum queries or URLs accepted in one call.

DEFAULT_RESULTS

Snippets returned per query when the call does not ask for a count.

MAX_RESULTS

Upper bound for snippets per query.

DEFAULT_IMAGES

Images returned per query when the call does not ask for a count.

MAX_IMAGES

Upper bound for images per query.

DEFAULT_TIMEOUT_MS

Per-call timeout in milliseconds when the call does not request one.

MIN_TIMEOUT_MS

Lowest timeout a call may request, in milliseconds.

MAX_TIMEOUT_MS

Highest timeout a call may request, in milliseconds.

DEFAULT_DOCUMENT_CHARS

Characters kept per scraped page when the call does not ask for a limit.

MAX_DOCUMENT_CHARS

Upper bound for characters kept per scraped page.

PROXY_SCHEME

Outbound proxy scheme. Optional; set all five PROXY_* variables or none.

PROXY_HOST

Outbound proxy host. Enables per-request rotating proxy sessions.

PROXY_PORT

Outbound proxy port. Required when PROXY_HOST is set.

PROXY_LOGIN

secret

Outbound proxy username. Required when PROXY_HOST is set.

PROXY_PASSWORD

secret

Outbound proxy password. Required when PROXY_HOST is set.

MCP_TRANSPORT

stdio (client spawns the process) or http (streamable HTTP listener).

MCP_NAME

Server name reported in the MCP initialize handshake.

MCP_PATH

HTTP path the MCP endpoint is served on. Used only when MCP_TRANSPORT=http.

SERVER_PORT

TCP port to listen on. Used only when MCP_TRANSPORT=http.

SERVER_READ_TIMEOUT

HTTP read timeout as a Go duration. Used only when MCP_TRANSPORT=http.

SERVER_WRITE_TIMEOUT

HTTP write timeout as a Go duration. Used only when MCP_TRANSPORT=http.

LOG_MODE

local (text, debug) or prod (JSON, info). Logs go to stderr.

MAX_IDLE_CONNS_PER_HOST

Idle connections the outbound HTTP client keeps per host.

MAX_QUERIES

Maximum queries or URLs accepted in one call.

DEFAULT_RESULTS

Snippets returned per query when the call does not ask for a count.

MAX_RESULTS

Upper bound for snippets per query.

DEFAULT_IMAGES

Images returned per query when the call does not ask for a count.

MAX_IMAGES

Upper bound for images per query.

DEFAULT_TIMEOUT_MS

Per-call timeout in milliseconds when the call does not request one.

MIN_TIMEOUT_MS

Lowest timeout a call may request, in milliseconds.

MAX_TIMEOUT_MS

Highest timeout a call may request, in milliseconds.

DEFAULT_DOCUMENT_CHARS

Characters kept per scraped page when the call does not ask for a limit.

MAX_DOCUMENT_CHARS

Upper bound for characters kept per scraped page.

PROXY_SCHEME

Outbound proxy scheme. Optional; set all five PROXY_* variables or none.

PROXY_HOST

Outbound proxy host. Enables per-request rotating proxy sessions.

PROXY_PORT

Outbound proxy port. Required when PROXY_HOST is set.

PROXY_LOGIN

secret

Outbound proxy username. Required when PROXY_HOST is set.

PROXY_PASSWORD

secret

Outbound proxy password. Required when PROXY_HOST is set.

MCP_TRANSPORT

stdio (client spawns the process) or http (streamable HTTP listener).

MCP_NAME

Server name reported in the MCP initialize handshake.

MCP_PATH

HTTP path the MCP endpoint is served on. Used only when MCP_TRANSPORT=http.

SERVER_PORT

TCP port to listen on. Used only when MCP_TRANSPORT=http.

SERVER_READ_TIMEOUT

HTTP read timeout as a Go duration. Used only when MCP_TRANSPORT=http.

SERVER_WRITE_TIMEOUT

HTTP write timeout as a Go duration. Used only when MCP_TRANSPORT=http.

LOG_MODE

local (text, debug) or prod (JSON, info). Logs go to stderr.

MAX_IDLE_CONNS_PER_HOST

Idle connections the outbound HTTP client keeps per host.

MAX_QUERIES

Maximum queries or URLs accepted in one call.

DEFAULT_RESULTS

Snippets returned per query when the call does not ask for a count.

MAX_RESULTS

Upper bound for snippets per query.

DEFAULT_IMAGES

Images returned per query when the call does not ask for a count.

MAX_IMAGES

Upper bound for images per query.

DEFAULT_TIMEOUT_MS

Per-call timeout in milliseconds when the call does not request one.

MIN_TIMEOUT_MS

Lowest timeout a call may request, in milliseconds.

MAX_TIMEOUT_MS

Highest timeout a call may request, in milliseconds.

DEFAULT_DOCUMENT_CHARS

Characters kept per scraped page when the call does not ask for a limit.

MAX_DOCUMENT_CHARS

Upper bound for characters kept per scraped page.

PROXY_SCHEME

Outbound proxy scheme. Optional; set all five PROXY_* variables or none.

PROXY_HOST

Outbound proxy host. Enables per-request rotating proxy sessions.

PROXY_PORT

Outbound proxy port. Required when PROXY_HOST is set.

PROXY_LOGIN

secret

Outbound proxy username. Required when PROXY_HOST is set.

PROXY_PASSWORD

secret

Outbound proxy password. Required when PROXY_HOST is set.

MCP quality score · maturity, not trust · methodology

freshness

completeness

installability

documentation

stability

Alternatives in Web Scraping

ReplyNodes

com.replynodes/mcp

Web MCP: scrape/crawl sites, web search, brand assets, app stores, YouTube, Reddit, Hacker News.

SnoopScan

com.snoopscan/snoopscan

Web scraping for agents: scrape, crawl, map, search and extract pages as clean markdown or JSON.

PyreCrawl

io.github.SanggonBoy/PyreCrawl

Web scraping + research toolkit for AI agents: scrape, crawl, monitor URLs with anti-bot bypass.

Install this server

Claude Desktop (Docker)

{
  "mcpServers": {
    "mcp-retrieval": {
      "command": "docker",
      "args": [
        "run",
        "--rm",
        "-i",
        "--",
        "ghcr.io/role1776/mcp-retrieval:0.1.7"
      ],
      "env": {
        "MCP_TRANSPORT": "stdio",
        "MCP_NAME": "mcp-retrieval",
        "MCP_PATH": "/mcp",
        "SERVER_PORT": "8080",
        "SERVER_READ_TIMEOUT": "60s",
        "SERVER_WRITE_TIMEOUT": "60s",
        "LOG_MODE": "local",
        "MAX_IDLE_CONNS_PER_HOST": "100",
        "MAX_QUERIES": "10",
        "DEFAULT_RESULTS": "5",
        "MAX_RESULTS": "20",
        "DEFAULT_IMAGES": "5",
        "MAX_IMAGES": "10",
        "DEFAULT_TIMEOUT_MS": "5000",
        "MIN_TIMEOUT_MS": "1000",
        "MAX_TIMEOUT_MS": "10000",
        "DEFAULT_DOCUMENT_CHARS": "20000",
        "MAX_DOCUMENT_CHARS": "20000",
        "PROXY_SCHEME": "<proxy_scheme>",
        "PROXY_HOST": "<proxy_host>",
        "PROXY_PORT": "<proxy_port>",
        "PROXY_LOGIN": "<your-proxy_login>",
        "PROXY_PASSWORD": "<your-proxy_password>"
      }
    }
  }
}

Verdict API

curl -s mcpindex.ai/api/v1/trust/server/io-github-role1776-mcp-retrieval

Free-tier verdict as JSON: decision + dimensions + severity. Call it from your agent before it invokes a tool it just discovered.

Details

version: v0.1.7
category: Web Scraping
verdict expires: 2026-10-02
quality: 89 / 100
operator: Role1776

Listing

Listed from the official MCP registry. Unclaimed by its maintainer. Maintainer? Email us →

Provenance

Each verdict is bound to a hash of the exact description it judged, so a re-crawl that changes the text produces a new record rather than silently inheriting this one. Verdict history is hash-chained and anchored to Bitcoin via OpenTimestamps (latest confirmed at block 968,499). Verify it yourself.

Links

Repository →Website →