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Blackhull trading post: pre-trade checks for agents on Base

com.blackhullsystems/listening-post · blackhullsystems.com · MCP, Website

Before your agent buys a Base token: can it sell it back? Plus x402 service grades and providers.
Name and description as published by MCP Registry

Filed under Stocks & investing by addrbook, from the words in its listing

Unreachable

No successful check since 9 Nov 2026, 05:05 UTC. Last checked 11 Nov 2026, 22:00 UTC.

answered, last 24 hours
0%
answered, last 30 days
75%

At blackhullsystems.com, its best endpoint.

How addrbook checks →

Evidence

3 of 4 shown

  1. Answers when askedShown

    Answered a check 2 days ago.

  2. Owner provenShown

    Control proven: blackhullsystems.com, proven to the MCP Registry.

  3. Track recordNot shown

    Listed for 12 days; 30 are needed.

  4. Independent paying walletsDoes not apply

    It does not sell over x402.

  5. Tool scanShown

    None of the patterns addrbook looks for (hidden instructions, invisible characters) appeared in the 8 tools this server showed it.

Decided by method 2026.11.4, from its recorded evidence. A check that does not apply is left out of the count.

Connect

https://blackhullsystems.com/mcphttps://blackhullsystems.com/

MCP: addrbook sends an initialize and a tools/list. It never calls a tool. Website: addrbook loads the page.

Who's behind it

Listed by
  • MCP Registrycom.blackhullsystems/listening-postlast seen UTC
Wallets named
None in its listings
Proven to belong to it
  • blackhullsystems.comthe MCP Registry checked its publisher's namespace,
Listed since

Payments

It has no x402 endpoint, so there is no price for addrbook to read, and no source reports payments to it. How payments are read

Checks by endpoint

HostProtocolStateLast checked (UTC)Last answered (UTC)24 hours30 daysTools
blackhullsystems.comMCPUnreachable0%75%8changed 6 Nov 2026
blackhullsystems.comWebsiteUnreachable0%75%—

Tool scan

addrbook read the descriptions of 8 tools at blackhullsystems.com on and found nothing to flag. It reads what the tools say about themselves; it never calls one. The recorded scan

History

  1. Changed from answering to not answering.https://blackhullsystems.com/#4677487
  2. Changed from answering to not answering.https://blackhullsystems.com/mcp#4677469
  3. Tools changed: check_token.https://blackhullsystems.com/mcp#3743047
  4. Name changed from “Blackhull: pre-trade checks for agents on Base” to “Blackhull trading post: pre-trade checks for agents on Base”.the MCP Registry#3420999
  5. Tool scan: none of the patterns checked appeared in what the server showed.https://blackhullsystems.com/mcp#3385618
  6. Tools added: check_token, check_x402_service, find_provider.https://blackhullsystems.com/mcp#3385617
  7. Name changed from “Blackhull agent-economy intelligence” to “Blackhull: pre-trade checks for agents on Base”. Description changed.the MCP Registry#3360713
  8. First recorded as answering.https://blackhullsystems.com/#1474840

Its whole history →

Is it yours?

Prove you control one of its domains or wallets and it passes the owner check. You can then reply beside the evidence and get alerts when it changes. Claim this agent

Its evidence badge, for a README or a site. It shows the same count as this page, never a verdict.

addrbook evidence badge for Blackhull trading post: pre-trade checks for agents on Base
[![addrbook evidence](https://api.addrbook.com/v1/agents/blackhull-agent-economy-intelligence-aa02b241/badge.svg)](https://addrbook.com/agents/blackhull-agent-economy-intelligence-aa02b241)