AreaCode.fyi MCP Server

NPM · @RIV-LC/AREACODE-MCP · SCANNED AUG 3

North American (NANP) area-code & phone-number intelligence for AI agents, by areacode.fyi.

Available components

+33 this week 79 79 Trust /100

Trust breakdown (6 categories)

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score →

Supply Chain Security86

No malware found by supply-chain analysis.Pass
Only part of the dependency tree could be resolved (94 of 98), so this covers what we could see, not the whole tree.Partial
No install/post-install scripts declared.Pass
Only part of the dependency tree could be resolved (94 of 98), so this covers what we could see, not the whole tree. View diagnostics → Partial

Provenance & Transparency97

Source repository is publicly reachable at the declared URL. View diagnostics → Pass
Cryptographically verified build provenance (signed, bound to riv-lc/areacode-mcp). View diagnostics → Pass
Clear OSI-approved license (MIT).Pass
Actively maintained (last published 41 days ago).Pass
Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail

Schema Quality & AI Usability77

AI-judged instruction clarity (excellent).Pass
Tool/resource definitions use about 651 tokens (~81/item across 8 items; 8 tools + 0 resources), lean.Pass
Usage-examples check failed: none of the tools include examples. See how to fix → Fail

Stability & Change Management23

Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial

Tool Coverage100

100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
100% of tool parameters carry a description.Pass

Capabilities100

Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass

Install

Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.

npm · @riv-lc/areacode-mcp

Claude Codex opencode OpenClaw Hermes Other

# add to Claude Code

claude mcp add riv-lc-areacode-mcp -- npx -y @riv-lc/areacode-mcp

# add to Codex CLI

codex mcp add riv-lc-areacode-mcp -- npx -y @riv-lc/areacode-mcp

// opencode.json

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "riv-lc-areacode-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@riv-lc/areacode-mcp"
      ],
      "enabled": true
    }
  }
}

# add to OpenClaw

openclaw mcp add riv-lc-areacode-mcp --command npx --arg -y --arg @riv-lc/areacode-mcp

# ~/.hermes/config.yaml

mcp_servers:
  riv-lc-areacode-mcp:
    command: "npx"
    args: ["-y", "@riv-lc/areacode-mcp"]

// mcp.json

{
  "mcpServers": {
    "riv-lc-areacode-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@riv-lc/areacode-mcp"
      ]
    }
  }
}

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.

2 Aug 26 +74
- Known CVEs: unverified → partial ▲ security
- Provenance: unverified → pass ▲ security
- Install scripts: unverified → pass ▲ security
- Malware scan: unverified → pass ▲ security
- The attested source repository moved: riv-lc/areacode-mcp security
- Security disclosure: fail → unverified ▼ functional
- MCP protocol: unverified → pass ▲ functional
- Maintenance: unverified → pass ▲ functional
- Stability: unverified → 0.20 ▲ functional
- Dependency health: unverified → partial ▲ functional
- License: unverified → pass ▲ functional
- Tool coverage: unverified → 100 ▲ functional
- Licence: MIT functional
1 Aug 26 0
- Security disclosure: unverified → fail ▼ functional
31 Jul 26 −57
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
30 Jul 26 −30
- Known CVEs: partial → unverified ▼ security
- Malware scan: pass → unverified ▼ security
- Dependency health: partial → unverified ▼ functional
29 Jul 26 +66
- Install scripts: unverified → pass ▲ security
- Known CVEs: unverified → partial ▲ security
- Provenance: unverified → pass ▲ security
- The attested source repository moved: riv-lc/areacode-mcp security
- Maintenance: unverified → pass ▲ functional
- License: unverified → pass ▲ functional
- Tool coverage: unverified → 100 ▲ functional
- Schema quality: unverified → excellent ▲ functional
- Licence: MIT functional
28 Jul 26 −20
- Tool coverage: 100 → unverified ▼ functional
- Dependency health: unverified → partial ▲ functional
- First check of Schema quality: unverified functional
27 Jul 26 46

First indexed and scored.

Show 4 earlier entries Hide earlier entries

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 3 Aug 2026 · Analysed npm/@riv-lc/[email protected]

Provenance verified

Ecosystem: npm · Outcome: verified

Reason: verified

Source repo:: riv-lc/areacode-mcp
Certificate issuer:: https://token.actions.githubusercontent.com
Certificate SAN:: https://github.com/riv-lc/areacode-mcp/.github/workflows/release.yml@refs/tags/v0.2.2
Rekor log index:: 1905825872
Predicate type:: https://slsa.dev/provenance/v1
Subject digest:: sha512:50d55c0da688e6f203d1a8b4c91aca633e58a16300e68a7a044d1744fed09204c58751821ea82cdbddd9cec88ebd9905be390f1572c769b3f7d852125
Discovery method:: attestation_endpoint

Dependencies 94 packages

94 packages in the resolved dependency tree · 94 deprecated · 29 stale.

The dependency tree was only partially resolved, so these counts may be incomplete.

MCP tools — 8 exposed · ~651 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.

Tool Tokens

area_codes_for_city Area codes for a city ~82

List the area codes that serve a US or Canadian city. Optionally pass a state/province to disambiguate cities that share a name.

Input Output Examples

Name	Type	Req	Description
city	string	yes	City name, e.g. "Las Vegas".
state	string	—	Optional state/province name or 2-letter code to disambiguate, e.g. "NV".

No output schema declared.

No examples provided.

area_codes_for_state Area codes for a state/province ~49

List every area code in a US state or Canadian province.

Input Output Examples

Name	Type	Req	Description
state	string	yes	State/province name or 2-letter code, e.g. "Nevada" or "ON".

No output schema declared.

No examples provided.

check_number_reputation Check a number's community reputation ~97

Return the UNVERIFIED, crowd-sourced community signal for a US/Canada number from areacode.fyi: 'low' (people have looked it up), 'mid'/'high' (it has user reports). Caller ID can be spoofed — this is never proof a specific number is fraudulent.

Input Output Examples

Name	Type	Req	Description
number	string	yes	A US/Canada phone number, e.g. "702-555-0199".

No output schema declared.

No examples provided.

explain_area_code_topic Explain a phone / area-code topic ~37

Source-backed explanation of a phone-numbering topic, suitable for answering end users.

Input Output Examples

Name	Type	Req	Description
topic	string	yes	The topic to explain.

No output schema declared.

No examples provided.

is_scam_area_code Is an area code a scam? ~80

Explain whether an area code is associated with scams. An area code is never a scam by itself; this returns that context plus spoofing notes — caller ID can be faked, so judge calls by what they ask for, not the area code.

Input Output Examples

Name	Type	Req	Description
code	string	yes	A 3-digit area code, e.g. "702".

No output schema declared.

No examples provided.

lookup_area_code Look up an area code ~91

Look up a North American (NANP) area code: country, state/province, principal city and served cities, time zone, current local time, 10-digit-dialing flag, overlay codes, and nearby codes. Returns a canonical areacode.fyi URL and the NANPA source date.

Input Output Examples

Name	Type	Req	Description
code	string	yes	A 3-digit area code, e.g. "702".

No output schema declared.

No examples provided.

lookup_carrier Look up a number's carrier (assigned block) ~109

Look up the carrier, line type (wireless/landline), and rate center that a US/Canada number's NPA-NXX block was assigned to — covering nearly every active area code. Based on public block-allocation data, NOT a live lookup: if the number was ported the current carrier differs. Not for caller identity, fraud, or FCRA decisions.

Input Output Examples

Name	Type	Req	Description
number	string	yes	A US/Canada phone number, e.g. "212-555-0143".

No output schema declared.

No examples provided.

lookup_phone_number Look up a phone number ~106

Parse and validate a US/Canada (NANP) phone number. Returns whether the format is valid, the E.164 form, the area code, the likely region and time zone, and the current local time there. Area-code level only — NOT the caller's identity, exact location, or live carrier; caller ID can be spoofed.

Input Output Examples

Name	Type	Req	Description
number	string	yes	A phone number in any format, e.g. "+1 702-555-0199".

No output schema declared.

No examples provided.

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Scoring key

80+ high trust
60–79 medium
below 60 low

How we score

Score history · last 30 days

27 Jul 3 Aug