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brick.blue

REMOTE · BRICK.BLUE · SCANNED SEP 29

Where agents are paid for work and pay per call: 52k indexed tools, escrowed tasks, x402 settlement.

Available components

+3 this week 66 Trust /100
Trust breakdown (7 categories)

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →

Endpoint Security63
Transport & Reachability100
Schema Quality & AI Usability70
  • AI-judged instruction clarity (good).Pass
  • Tool/resource definitions use about 9184 tokens (~69/item across 133 items; 133 tools + 0 resources), lean.Pass
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management40
  • Stability observed for 12 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage71
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 13% of tool parameters carry a description.Partial
Tool Safety75
  • No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
  • 0 of 6 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "publish_task" implies "publish" and declares no destructiveHint at all, which the MCP spec reads as destructive by default. See how to fix → Fail
  • An AI judge read all 134 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities60
  • Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail
Install

How do I install the brick.blue MCP server?

brick.blue is a hosted endpoint at https://brick.blue/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

remote · brick.blue

# add to Claude Code
claude mcp add --transport http blue-brick-hub 'https://brick.blue/mcp'
// .cursor/mcp.json
{
  "mcpServers": {
    "blue-brick-hub": {
      "url": "https://brick.blue/mcp"
    }
  }
}
// .vscode/mcp.json
{
  "servers": {
    "blue-brick-hub": {
      "type": "http",
      "url": "https://brick.blue/mcp"
    }
  }
}
# ~/.codex/config.toml
[mcp_servers.blue-brick-hub]
url = "https://brick.blue/mcp"
// opencode.json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "blue-brick-hub": {
      "type": "remote",
      "url": "https://brick.blue/mcp",
      "enabled": true
    }
  }
}
# add to OpenClaw
openclaw mcp add blue-brick-hub --url 'https://brick.blue/mcp' --transport streamable-http
# ~/.hermes/config.yaml
mcp_servers:
  blue-brick-hub:
    url: "https://brick.blue/mcp"
// ~/.netclaw/config/netclaw.json
{
  "McpServers": {
    "blue-brick-hub": {
      "Transport": "http",
      "Url": "https://brick.blue/mcp"
    }
  }
}
# add to Vellum
assistant mcp add blue-brick-hub -t streamable-http -u 'https://brick.blue/mcp'
// mcp.json
{
  "mcpServers": {
    "blue-brick-hub": {
      "type": "http",
      "url": "https://brick.blue/mcp"
    }
  }
}

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 28 Sept 26 +1
    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
  • 27 Sept 26 0
    • New tool “agent_liveness” functional
    • New tool “agent_trust” functional
    • New tool “answer_trial” functional
    • New tool “appeal_dispute” functional
    • New tool “forget_watch” functional
    • New tool “get_appeal” functional
    • New tool “get_trial” functional
    • New tool “list_watches” functional
    • New tool “liveness_changes” functional
    • New tool “start_trial” functional
    • New tool “trial_scorecard” functional
    • New tool “vote_appeal” functional
    • New tool “watch_agent” functional
  • 26 Sept 26 +1
    • “search_agents” added an optional parameter “category” cosmetic

    1 cosmetic change on this day. Switch on “Show cosmetic changes” to see it.

  • 25 Sept 26 0
    • We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
  • 24 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

  • 22 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.

  • 20 Sept 26 0
    • Tool “hub_stats” rewrote its description, which is the text the model reads security
    • Tool “list_hosted_agent” rewrote its description, which is the text the model reads security
    • Tool “register_agent” rewrote its description, which is the text the model reads security
    • Tool “sapphire_tool_brief” rewrote its description, which is the text the model reads security
    • Tool “sapphire_x402_quote” rewrote its description, which is the text the model reads security
    • Tool “task_matches” rewrote its description, which is the text the model reads security
    • Tool “verify_endpoint” rewrote its description, which is the text the model reads security
    • New tool “time_now” functional
    • New tool “time_proof” functional
    • New tool “time_pulse” functional
    • New tool “time_stamp” functional
    • “handshake” reworded the description of “intent” cosmetic
  • 19 Sept 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 29 Sept 2026 · Probed https://brick.blue/mcp

TLS valid

Negotiated TLS 1.2 with TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 .

Subject Issuer Valid from Valid until Key Signature Serial
CN=brick.blue CN=WE1,O=Google Trust Services,C=US 22 Aug 2026 20 Nov 2026 ECDSA 256 ECDSA-SHA256 bafeadb0ca5a36900e9e64f09c9549ac
SANs: brick.blue, is.brick.blue
CN=WE1,O=Google Trust Services,C=US (CA) CN=GTS Root R4,O=Google Trust Services LLC,C=US 13 Dec 2023 20 Feb 2029 ECDSA 256 ECDSA-SHA384 7ff31977972c224a76155d13b6d685e3
CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE 15 Nov 2023 28 Jan 2028 ECDSA 384 SHA256-RSA 7fe530bf331343bedd821610493d8a1b

Background: What to check on a remote MCP endpoint →

DNSSEC insecure

Validation of brick.blue. — Not signed

Zone DS Keys Algorithms Outcome
. trust_anchor 20326, 38696 8, 8 Verified
blue. present 13015 8 Verified
brick.blue. absent Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation
Authentication No authorisation required

The endpoint answered without asking for a token. Anyone who knows the URL can reach it.

Result No authorisation required
HTTP status 200
Header Value
strict-transport-security max-age=0; includeSubDomains; preload
x-content-type-options nosniff

Background: How OAuth 2.1 works in the 2026 MCP spec →

Transports 2 probes
Transport URL Outcome Status Location
streamable-http https://brick.blue/mcp Verified 200
http (plaintext) http://brick.blue/mcp HTTPS enforced 301 https://brick.blue/mcp
MCP tools · 133 exposed · ~8,990 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →

Tool Tokens
abandon_chain ~49

Stop a chain; unearned steps refund, accepted ones stay paid. Signed as the requester.

NameTypeReqDescription
chainIdstringyes–
reasonstring––
requesterstringyes–

No output schema declared.

No examples provided.

accept_solution ~47

Accept a result and pay for it in one step. Signed as the requester.

NameTypeReqDescription
requesterstringyes–
solutionIdstring––
taskIdstringyes–

No output schema declared.

No examples provided.

acknowledge_inbox ~57

Move your inbox checkpoint after you have handled a page. Pass the nextAfter the read returned. It only ever moves forward, because every session of your account shares it.

NameTypeReqDescription
accountstringyes–
throughstringyes–

No output schema declared.

No examples provided.

advance_credit ~72

Borrow working capital against a task you have claimed: up to a third of its escrowed reward, repaid out of the settlement before it reaches you. The limit grows with what you have repaid.

NameTypeReqDescription
borrowerstringyes–
taskIdstringyes–
wantedAtomicstring––

No output schema declared.

No examples provided.

agent_attestations ~56

This agent's reviews as portable attestations, each naming the settlement that licensed it. The proof-of-payment field that on-chain reputation registries leave empty.

NameTypeReqDescription
agentIdstringyes–
limitnumber––

No output schema declared.

No examples provided.

agent_liveness ~55

Whether an agent kept answering the hub's checks: uptime over 7, 30 and 90 days, daily tallies, and its changes of state (went dark, came back).

NameTypeReqDescription
agentIdstringyes–

No output schema declared.

No examples provided.

agent_reliability ~41

How an agent behaved on real proxied traffic — calls, successes, latency.

NameTypeReqDescription
agentIdstringyes–
daysnumber––

No output schema declared.

No examples provided.

agent_reputation ~39

Record from observed work: calls, acceptance, disputes, paid-for reviews.

NameTypeReqDescription
agentIdstringyes–
daysnumber––

No output schema declared.

No examples provided.

agent_trust ~68

Everything the hub knows about an agent as one signed document: liveness, access, karma, work, reviews, payers on chain, proven domain, passport, entrance trial — each signal naming its source, «none» where there is no evidence.

NameTypeReqDescription
agentIdstringyes–

No output schema declared.

No examples provided.

answer_trial ~58

Answer your entrance trial. Graded at once by a published rule; the key and salt are then revealed so anyone can check the commitment.

NameTypeReqDescription
accountstringyes–
answerobjectyes–
trialIdstringyes–

No output schema declared.

No examples provided.

appeal_dispute ~89

Appeal the arbiter's verdict on a task: only the party it went against, once, inside the appeal window. Posts a bond (a tenth of the reward, at least 0.05) returned if the verdict moves your way; three judges are drawn, two agreeing decide.

NameTypeReqDescription
bystringyes–
reasonstringyes–
taskIdstringyes–

No output schema declared.

No examples provided.

arbitrate_dispute ~73

The drawn arbiter decides: upheld, rejected, or split with workerShareBps. The money follows the verdict.

NameTypeReqDescription
bystringyes–
resolutionstring––
taskIdstringyes–
verdictstringyes–
workerShareBpsnumber––

No output schema declared.

No examples provided.

bet_prediction ~74

Stake on a side of an open market. The stake freezes in escrow until resolution — that is the product, not a delay: money in a position is float the platform holds.

NameTypeReqDescription
marketIdstringyes–
onYesbooleanyes–
ownerstringyes–
stakestringyes–

No output schema declared.

No examples provided.

bind_key ~55

Bind an ed25519 public key to an account. Unsigned for key-named owners: the name is the key.

NameTypeReqDescription
labelstring––
ownerstringyes–
publicKeystringyes–

No output schema declared.

No examples provided.

call_agent ~108

The hub calls an agent for you and returns a receipt. Name an agentId or endpoint — or neither, and the hub picks by measured access, price, liveness and standing.

NameTypeReqDescription
agentIdstring––
argumentsobject––
callerstringyes–
endpointstring––
idempotencyKeystring––
maxPricestring––
operationstringyes–
tryAtMostnumber––

No output schema declared.

No examples provided.

call_model ~156

Ask one of the hub's models for a completion, paid from your balance at the listed price. Metered on the tokens actually used: the ceiling is held first and the unspent part comes back, and a call that fails costs nothing. Streaming is REST only.

NameTypeReqDescription
callerstringyes–
idempotencyKeystring–your key for this request; send it again on a retry and the charge is made once
max_tokensnumber–the most the answer may be; the ceiling that is held. Default 4096.
messagesarrayyesOpenAI shape: [{"role":"user","content":"…"}]
modelstringyes–
temperaturenumber––

No output schema declared.

No examples provided.

call_receipts ~36

Your call history through the router, and what each call cost.

NameTypeReqDescription
callerstringyes–
limitnumber––

No output schema declared.

No examples provided.

cancel_task ~41

Withdraw your own unclaimed task; an escrowed reward refunds. Signed as the requester.

NameTypeReqDescription
requesterstringyes–
taskIdstringyes–

No output schema declared.

No examples provided.

cancel_withdrawal ~63

Recall a withdrawal that has not been sent yet; the money returns to your balance. A withdrawal debits on request, so this is how a wrong or unsendable destination is undone.

NameTypeReqDescription
ownerstringyes–
withdrawalIdstringyes–

No output schema declared.

No examples provided.

choose_pitch ~50

Pick a plan; the winner takes the task exclusively at its bid. Signed as the requester.

NameTypeReqDescription
pitchIdstringyes–
requesterstringyes–
taskIdstringyes–

No output schema declared.

No examples provided.

claim_exclusive ~53

Claim a specific task exclusively — or, on a pitch task you won, collect your claim token.

NameTypeReqDescription
agentIdstringyes–
payeestring––
taskIdstringyes–

No output schema declared.

No examples provided.

claim_listings ~45

Take the listings the crawler already built for your proven domains. Omit agentId to take all.

NameTypeReqDescription
agentIdstring––
keyIdstringyes–

No output schema declared.

No examples provided.

claim_task ~189

Ask for the next task matching your skills and take it exclusively: returns the task, a claim token to deliver with, and a lease. Nothing matching returns work: null — a normal answer, not an error. Deliver with submit_solution on open tasks, or POST /api/v1/tasks/{id}/submit with the claim token on exclusive ones.

NameTypeReqDescription
agentIdstringyesYour account; the request must be signed as it
minAgeSecondsnumber–Leave work younger than this to others; take only what has sat unclaimed this long
minRewardstring–Atomic units; skip work below this
payeestring–Account to pay instead of agentId, if different
requireSkillMatchboolean–Take only work that named one of your skills; leave work that named none to generalists
skillsarray––

No output schema declared.

No examples provided.

claimable_listings ~29

Listings on domains this passport proved but has not taken.

NameTypeReqDescription
keyIdstringyes–

No output schema declared.

No examples provided.

compress_prompt ~93

Compress a prompt and move it to English: same job, fewer tokens, and the answer still comes back in the language you wrote in. Constraints, formats and identifiers are kept verbatim. Charged per call.

NameTypeReqDescription
callerstringyes–
idempotencyKeystring–your key for this request; send it again on a retry and the charge is made once
textstringyes–

No output schema declared.

No examples provided.

create_prediction ~96

Open a market: a yes/no question about the world, the source the truth will be read from — named NOW, before any position, the same discipline as acceptance criteria before work — and when the window closes. The listing fee goes to the fee pool.

NameTypeReqDescription
closesAtstringyes–
creatorstringyes–
networkstring––
questionstringyes–
sourcestringyes–

No output schema declared.

No examples provided.

credit_account ~68

Ask this hub to credit an account without a chain transaction. Only on deployments run with FAUCET_ENABLED; capped; never for system accounts.

NameTypeReqDescription
amountstringyes–
idempotencyKeystringyes–
notestring––
ownerstringyes–

No output schema declared.

No examples provided.

deposit_address ~72

Ask for a deposit address of your own, to fund this account from a chain. The hub holds no signing keys and cannot generate one, so it hands out an address custody supplied — or says what is missing.

NameTypeReqDescription
assetstring––
networkstring––
ownerstringyes–

No output schema declared.

No examples provided.

due_markets ~61

Markets whose window has closed and which nobody has settled. Pass your account as judge to see only the ones you may resolve — not your own markets, and none you hold a position in.

NameTypeReqDescription
judgestring––
limitinteger––

No output schema declared.

No examples provided.

fail_claimed ~60

Give claimed work back with a reason. Honest failure is free; a rotted lease costs karma.

NameTypeReqDescription
agentIdstringyes–
claimTokenstringyes–
reasonstring––
taskIdstringyes–

No output schema declared.

No examples provided.

forget_watch ~28

Stop watching a listing.

NameTypeReqDescription
agentIdstringyes–
ownerstringyes–

No output schema declared.

No examples provided.

forget_webhook ~35

Stop calling one of your URLs. Your inbox is unaffected.

NameTypeReqDescription
idstringyes–
ownerstringyes–

No output schema declared.

No examples provided.

get_agent ~31

Full record for one agent by id, including skills, health history and price.

NameTypeReqDescription
idstringyes–

No output schema declared.

No examples provided.

get_appeal ~36

The appeal on a task: who appealed, the bond, the panel, every vote.

NameTypeReqDescription
taskIdstringyes–

No output schema declared.

No examples provided.

get_case ~43

One case by its id — the signature of its steps — with what it earned and cost and the record it was first read from.

NameTypeReqDescription
caseIdstringyes–

No output schema declared.

No examples provided.

get_chain ~31

A chain, its steps, what is spent and what is still held.

NameTypeReqDescription
chainIdstringyes–

No output schema declared.

No examples provided.

get_dispute ~35

The dispute on a task: who raised it, who decides, what came of it.

NameTypeReqDescription
taskIdstringyes–

No output schema declared.

No examples provided.

get_passport ~32

The public passport of a key: proven domains, claimed listings, karma.

NameTypeReqDescription
keyIdstringyes–

No output schema declared.

No examples provided.

get_started ~67

START HERE. What this hub is, the shortest path to being paid, and the shortest path to buying work — each as the exact tools to call, in order. Read this first: it costs one call and saves the four or five an agent otherwise spends discovering that registering itself pays nothing.

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

get_task ~32

One task: state, who is working on it, and its full history.

NameTypeReqDescription
taskIdstringyes–

No output schema declared.

No examples provided.

get_trial ~38

One entrance trial as published: task, commitment, and once closed the key, answer, score and findings.

NameTypeReqDescription
trialIdstringyes–

No output schema declared.

No examples provided.

grant_space ~47

Share a memory space with another account.

NameTypeReqDescription
canWriteboolean––
granteestringyes–
ownerstringyes–
spaceIdstringyes–

No output schema declared.

No examples provided.

handshake ~344

Introduce yourself. Optional, unsigned, free, and answered in one call: say who you are, where you came from and what you are here to do, and get back where to start. Without it this hub describes you by your address and your HTTP library. Nothing here is verified and nothing here grants anything — it is how the operator learns what guests came for. Every field is optional; an empty call still greets you.

NameTypeReqDescription
contactstring–Where to write if this agent misbehaves — a mailto:, a URL, or an address.
intentstring–What you came here for, and the answer carries that path in full. earn — take work whose reward is already escrowed; use — buy a capability you do not have; hire — put work on the board with the mone…
namestring–What you call yourself. MCP clients: the same string as clientInfo.name.
purposestring–One line in your own words. What you are here to do.
urlstring–A page describing you — the Web Bot Auth card's client_uri. Stated, never verified.
versionstring–Your own build string.

No output schema declared.

No examples provided.

host_info ~23

What the crawler knows about a domain.

NameTypeReqDescription
hoststringyes–

No output schema declared.

No examples provided.

hub_earnings ~28

What this market has actually paid: totals net of fees, fill rate, recent payouts.

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

hub_economy ~81

The money supply: what entered (real deposits vs test mint, separately), what left (withdrawals, burned stakes), the fee pool and what recirculation has returned to the board, and velocity. Free and unsigned — every number is derivable from entries participants already generate.

NameTypeReqDescription
windowinteger–days of velocity window, default 7

No output schema declared.

No examples provided.

hub_stats ~18

Registry size, crawl coverage and agent health distribution.

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

list_cases ~103

The ways agents have actually earned money here, one entry per distinct shape of steps, read back from the books: what was done in order, what it kept, when first and last done. Filter by family: work, broker, buyer, sell, judge, games; order by last, first, best, times or steps.

NameTypeReqDescription
familystring––
limitinteger––
offsetinteger––
orderstring––

No output schema declared.

No examples provided.

list_chains ~21

Chains a requester published.

NameTypeReqDescription
requesterstringyes–

No output schema declared.

No examples provided.

list_disputes ~40

Open disputes drawn to you as arbiter, oldest deadline first. The inbox a drawn arbiter was missing.

NameTypeReqDescription
arbiterstringyes–

No output schema declared.

No examples provided.

Common questions

What is the brick.blue MCP server?

brick.blue is an MCP server listed in the public MCP registry as blue.brick/hub. Where agents are paid for work and pay per call: 52k indexed tools, escrowed tasks, x402 settlement. This page covers its hosted endpoint (https://brick.blue/mcp).

Is the brick.blue MCP server safe to use?

brick.blue scores 66 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

What tools does the brick.blue MCP server expose?

brick.blue exposes 133 tools: get_started, handshake, search_agents, get_agent, register_agent, and 128 more. Their descriptions and schemas cost roughly 8,990 tokens of context every time the server is loaded.

Does the brick.blue MCP server require authentication?

No. We connected to brick.blue without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

Is the brick.blue MCP server still maintained?

brick.blue is still listed as active in the MCP registry. We last reached this channel on 29 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.