NicheDB MCP server
Featured official server
42 tools · Last check that passed 4 Nov 2026, 12:15 UTC
NicheDB's own remote MCP server gives an agent NicheDB's open database of public data, from game releases and package registries to domain names, business checks, blocklists and public profiles of people, with reads open to anyone and writes behind an API key. Once a day, Stackduke connects to it the way any MCP client would, with no account and no sign-in, and lists its tools. It never runs them.
All 42 tools
| Tool | Counted as |
|---|---|
where_to_buy_book | Moves money |
delete_webhook | Deletes |
update_webhook | Deletes |
test_webhook | Sends |
add_source | Changes things |
claim_profile | Changes things |
create_feed | Changes things |
create_invite | Changes things |
create_webhook | Changes things |
follow_feed | Changes things |
redeem_code | Changes things |
rotate_webhook_secret | Changes things |
run_source | Changes things |
submit_feed | Changes things |
update_profile | Changes things |
business_standing | Said to only read |
check_domain | Said to only read |
feed_items | Said to only read |
find_profile_by_linkedin | Said to only read |
get_item | Said to only read |
get_profile | Said to only read |
get_tld | Said to only read |
list_adapters | Said to only read |
list_collections | Said to only read |
list_enrichers | Said to only read |
list_feeds | Said to only read |
list_invites | Said to only read |
list_sources | Said to only read |
list_webhooks | Said to only read |
match_items | Said to only read |
population | Said to only read |
recent_items | Said to only read |
reputation_lookup | Said to only read |
search_items | Said to only read |
search_profiles | Said to only read |
search_tlds | Said to only read |
stats | Said to only read |
tld_changes | Said to only read |
traffic_list | Said to only read |
upcoming | Said to only read |
vuln_lookup | Said to only read |
webhook_deliveries | Said to only read |
The tools the server listed at the last check that passed, at its default address and settings, with no sign-in; an account that signs in, or other settings, may see other tools. What a tool is counted as doing is Stackduke's cautious reading of the server's labels, the tool's name and its description: where they disagree it takes whichever says the tool can do most, so it overcounts on purpose. It does not say the server is safe, and it does not list what a tool cannot do. Descriptions are not shown, because they are written for models and may try to steer them.
Recent checks
21 of the last 21 checks passed
A check passes when the server lists its tools. Checked at https://nichedb.dev/mcp.
Recent changes
29 Oct 2026, 10:58 UTC, after a check on 28 Oct 2026, 17:08 UTC
Can do more 1 tool added: vuln_lookup. The server's own labels changed on add_source, business_standing, check_domain, claim_profile, create_feed and 15 more. Inputs or outputs changed on add_source, business_standing, check_domain, claim_profile, create_feed and 9 more. 41 tools changed in all. Counted as able to do more: rotate_webhook_secret (make changes that cannot be undone), update_profile (make changes that cannot be undone).
28 Oct 2026, 17:08 UTC, after a check on 28 Oct 2026, 10:48 UTC
Can do more 7 tools added: create_webhook, delete_webhook, list_webhooks, rotate_webhook_secret, test_webhook and 2 more. Counted as able to do more: delete_webhook (make changes that cannot be undone), update_webhook (make changes that cannot be undone), test_webhook (send messages or publish to other people) and 4 more.
27 Oct 2026, 10:01 UTC, after a check on 26 Oct 2026, 10:21 UTC
Can do more 3 tools added: create_invite, list_invites, redeem_code. Counted as able to do more: redeem_code (move or spend money), create_invite (create or change things).
26 Oct 2026, 10:21 UTC, after a check on 25 Oct 2026, 09:21 UTC
Can do more 1 tool added: where_to_buy_book. Counted as able to do more: where_to_buy_book (move or spend money).
18 Oct 2026, 06:13 UTC, after a check on 16 Oct 2026, 18:22 UTC
Can do more 3 tools added: business_standing, reputation_lookup, traffic_list. Counted as able to do more: business_standing (not clear what it does).
From the scan of 4 Nov 2026, 12:43 UTC. "Changed" and "Can do more" count changes from the last 30 days; older ones stay listed here. A change made and undone between two checks is not seen. Every check is in the scanner's public data.
Know when NicheDB's tools change.
One email when NicheDB's official MCP server adds, removes or changes tools, with what changed. Nothing else.
What to watch for
- With a key, its tools create and follow feeds, add data sources, claim and edit profiles, create invites, redeem credit codes, and create, change and delete webhooks that post events to an https URL. NicheDB's MCP documentation
- create_webhook and rotate_webhook_secret return the signing secret, so the agent sees it. NicheDB's MCP documentation
- search_profiles and find_profile_by_linkedin return public profiles of people, assembled from other apps, by name or by LinkedIn URL. NicheDB's MCP documentation
- Item titles and summaries from public sources, and profiles people wrote come back to the agent as text, and text an agent reads can carry instructions for it. OWASP, prompt injection
How to limit it
With NicheDB's own settings, as its documentation describes them. Stackduke has not tested them.
- NicheDB says reads need no key and the key is only for the tools that write, so we recommend connecting it with no key when the agent only reads. NicheDB's MCP documentation
- NicheDB says a business_standing name match is not an identity, so confirm a match against the address and identifiers before acting on it, as it advises. NicheDB's MCP documentation
What Stackduke is designed to do
Stackduke is designed to sit between your agents and their MCP servers: to check each tool call against your rules before it runs, hold the risky ones for a person to approve, and keep a record of what was decided.
It does not yet forward or block tool calls for customers. Today it reads what this server offers and publishes what changes.