Postal Lookup MCP
io.github.Lulu-The-Narwhal/postal-lookup-mcp
Free, keyless postal/ZIP code lookup: place name(s), state/region, and coordinates.
— the operator's own registry description reported
Publisher io.github.Lulu-The-Narwhal · first seen 2026-08-12 · endpoint https://ads.getlulu.dev/postal/mcp
Dependency rating derived
block — dead / unreachable · retrieval-public ○ · V n/a
Cluster unreachable · distinctiveness —. Every figure is a percentile or class within the 11,094-server census — see the whole spectrum.
🔏 Signed receipt rr_2b87f5782906e6304fc3903a · ed25519 · key rs-rcpt-2026-08 — this rating is tamper-evident; an agent gets the full signature from check_server and can verify it against the published key.
● observed · ◐ derived · ○ reported — the verdict synthesizes Q1–Q4; Q5 is context. Methodology →
History observed
Every probe we made, oldest → newest (2 shown, 2026-08-12 → 2026-08-14). Green answered · amber answered-but-walled · red no useful answer. A gap in our cadence is a gap in coverage, not evidence about the server.
changelog (2 events)
| date | type | what changed |
|---|---|---|
| 2026-08-14 | outcome | http_error (was ok_tools) |
| 2026-08-12 | outcome | first probe: ok_tools |
What kind of tools these are derived
Verification only means something relative to a tool's NATURE — an email-sender has no "true answer", a generator has no answer key. Classification evidence: classified from the operator's own registry description — REPORTED, not observed (tools were not visible to the probe). What checking applies to each kind (the full methodology →):
| nature | tools | meaning | what checking applies |
|---|---|---|---|
| retrieval-public | 1 | serves public facts | truth-checkable against a public source — the V-ladder applies in full |
Tools last seen observed
Truth checks observed
Not in the Tier-2 trade lane, or not yet checked. Tier-2 re-derives a server's answers against published primary sources — see truth checks.
Drift observed
No confirmed drift on record. Baseline set 2026-08-14; changes appear here after human review.
Looking for an alternative?
This server doesn't answer, but these live, allow-verdict servers describe themselves similarly — similar by what they say they do — never verified drop-in replacements; check each one before depending on it.
| server | verdict | shared terms |
|---|---|---|
| io.github.ColinHughes2121/gocreative-agent-api 17-model LLM gateway + 350+ data/KYB/sanctions tools. Pay-per-call USDC via x402, no API key. | allow | code, keyless, lookup, postal |
| io.github.huwhitememes/tollbooth 37 paid x402 MCP tools for OSINT, prediction markets, web intel, and agent security on Base USDC. | allow | code, keyless, lookup, postal |
| io.github.blackboxfoundry/livedatalink One key for 284 tools across 59 US public-data domains. Resale-safe government and open data. | allow | code, free, keyless, lookup |
| io.github.pipeworx-io/geonames GeoNames MCP — GeoNames geographical database API | allow | code, postal, zip |
| io.github.lazymac2x/govdata-korea Cloudflare Workers MCP server: govdata-korea | allow | code, lookup, postal |
raw probe records
| probed (UTC) | outcome | http | ms | protocol |
|---|---|---|---|---|
| 2026-08-14T19:59:07Z | http_error | 502 | 24 | |
| 2026-08-12T05:34:21Z | ok_tools | 200 | 30 | 2025-06-18 |
Watch or embed this verdict
Operators: put the live verdict in your README — it updates with every census, links back here, and is a dated observation, never a warranty:
[](https://robinsaige.com/s/io.github.Lulu-The-Narwhal/postal-lookup-mcp)
Depend on it? Subscribe to its change feed — outcome changes and confirmed drift, no account needed. Building on it? The full dossier as JSON — verdict, rating, truth checks, history — stable enough to gate CI on.