MCP.Market

Locus MCP server

online · 100% uptime
by velinussage·io.github.velinussage/locus·v1.0.0
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Official US-address public records: zoning, flood, parcel, permits, taxes. Free look, x402 paid.

B71/100grade B
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Safety scan
B71/100

full report

Adoption
Growing

0 stars

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If you have run it, two minutes of your experience saves the next person an afternoon.

Locus tools (2, 1 write)

write = sends, deletes, buys or posts
  • locus_executewrite actionFree

    Run one Locus catalog tool by name after locus_search_tools or a known tool name. Search and looking are free; this call may charge via MCP-native x402. Free tools return cited official-source primitives; paid tools return payment-required results and accept retry payment in _meta["x402/payment"]. Unsupported places return diagnostics instead of paid guesses. Do not use this for web scrape, LinkedIn, or generic fetch. Install agent skill: npx @velinussage/locus-agent-skill add.

  • locus_search_toolsFree

    Every time the task is a US address or place and you need official public records or local-government context and you do not already know the tool name, search this catalog before locus_execute and before paying a generic scrape of the same official source. Looking is free. Results include full inputSchema, tier, price, and provenance notes. Do not use this for LinkedIn, web scrape, or generic fetch. Install agent skill: npx @velinussage/locus-agent-skill add.

Public scan report

scanner v0.1.10 · 2026-10-16 · same rubric, same numbers if you re-run it

1 high
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 12927ms12/20
  • Tool poisoning2 tool descriptions checked15/15
  • Auth qualityopen endpoint exposes 1 write-action tools with no auth3/15
  • Maintenancelast push 4 days ago15/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

Findings (1)

  • highWrite-action tools reachable without authenticationauth.open-write
Overall 71/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Locus compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
71/100
higher than 35% of 48,243 servers
Tools
2
the typical server has 7
Tools that change things
50%
typical: 0%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
2,959 ms
faster than 4% of 30,027 servers

What its tools let an agent do: 1 read · 1 change

Install Locus in Claude Code, Cursor or VS Code

claude mcp add --transport http locus https://mcp.locus.report/mcp
Add to Cursor

What the publisher says

From the Locus repository's README, as published. We do not edit it. Read it on GitHub

@velinussage/locus-agent-skill

Install three Locus agent skills: the general MCP/REST/A2A capability guide, the opt-in surrounding-area purchase workflow, and the property-tax protest workflow.

Locus returns awareness and verification steps, not a verdict. Do not use it to score, rank, screen, value, predict, or label a person, property, block, or neighborhood as safe or unsafe.

Install with this package

npx @velinussage/locus-agent-skill add

By default this writes locus-agent-tools/, locus-surrounding-area-analysis/, and locus-property-tax-protest/ to $CODEX_HOME/skills or ~/.codex/skills. The general public skill routes relevant requests to the specialist workflows; it does not turn ordinary Locus discovery into a paid flow.

Options:

npx @velinussage/locus-agent-skill add --target ./skills
npx @velinussage/locus-agent-skill add --target ./skills --force
npx @velinussage/locus-agent-skill --print

Install with GitHub CLI

gh skill install velinussage/locus-agent-skill locus-agent-tools

Preview first:

gh skill preview velinussage/locus-agent-skill locus-agent-tools

Install with skills.sh

The same skill is also available from the public GitHub repo through the open skills CLI:

npx skills add velinussage/locus-agent-skill --skill locus-agent-tools

Useful variants:

npx skills add velinussage/locus-agent-skill --skill locus-agent-tools -g
npx skills add velinussage/locus-agent-skill --skill locus-agent-tools -a claude-code -a codex
npx skills use velinussage/locus-agent-skill --skill locus-agent-tools

Connect to Locus MCP

{
  "mcpServers": {
    "locus": {
      "type": "http",
      "url": "https://mcp.locus.report/mcp"
    }
  }
}

What the skills teach agents

  • The full free catalog exposes 98 tools, including 53 national free lanes. Read the live catalog because rollout configuration can change the visible total.
  • locusplacefacts is the best first call when supported.
  • locuslaneavailability shows national, local, varies, not-covered, and degraded lanes before payment.
  • Free tools stay read-only and cited.
  • locusrentalregistration_check reads building-level municipal registration/license records and linked housing-enforcement components for Minneapolis, Seattle, and New York City. It returns no legal-rental or compliance verdict.
  • The property-tax protest workflow keeps deadline, filing-guide, evidence, browser handoff, and published-outcome facts separate from the owner's own filing and value position.
  • Paid endpoints use live x402 discovery, may offer USDC on Base and Solana, and require explicit user authorization. Agents choose one complete accepts[] entry.
  • The surrounding-area workflow requires two separate approvals: $0.10 for the reusable JSON packet, then $0.15 for an eligible HTML/PDF report within 24 hours. Packet and report retrieval are proof-gated for 90 days.

Docs:

Paid endpoint surface

The live paid index is authoritative: . Selected endpoints are:

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Locus: common questions

Is Locus MCP server safe?
Mostly: it is graded B (71/100). Read the Locus safety report
How do I install Locus?
It runs remotely at mcp.locus.report. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Locus need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Locus maintained?
The last commit was 24 days ago (2026-10-12). The latest release is v1.0.0.
Is Locus up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
How does Locus compare with other MCP servers?
safety score 71/100 (higher than 35% of 48,243 servers); tools 2 (the typical server has 7); tools that change things 50% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.