PeerGlass

PeerGlass

Provides global internet resource intelligence by querying RIRs for IP and ASN data, routing visibility, and network health. It enables users to perform RPKI validation, BGP inspection, and historical allocation analysis through natural language or a REST API.

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README

🔍 PeerGlass — Internet Resource Intelligence

PeerGlass Branding

Protocol note: PeerGlass uses RDAP (Registration Data Access Protocol — RFC 7480–7484). RDAP (RFC 7480–7484) is the IANA-mandated JSON successor to legacy plain-text WHOIS. Where you see "historical-whois" in source code or API responses, that is RIPE Stat's own name for their endpoint — it is not our protocol choice.

Query all 5 global Regional Internet Registries simultaneously using RDAP, validate routes via RPKI, inspect BGP routing visibility, trace full historical allocation timelines, discover IXP peering data via PeeringDB, and monitor network health — all from natural language in Claude or via REST API.

What Are the 5 RIRs?

Think of the internet's IP address space like a global land registry. IANA (the root) delegates large blocks to 5 regional bodies:

RIR Region Countries
🌍 AFRINIC Africa 54
🌏 APNIC Asia-Pacific 56 economies
🌎 ARIN North America USA, Canada, Caribbean
🌎 LACNIC Latin America & Caribbean 33
🌍 RIPE NCC Europe, Middle East, Central Asia 75+

Quick Start

Install

git clone https://github.com/duksh/peerglass
cd peerglass
pip install -e .

Configure MCP Clients (Claude and others)

PeerGlass runs as a standard MCP stdio server (mcp.run() in server.py), so any MCP-compatible AI client can use it — not just Claude Desktop.

For Claude Desktop, edit ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):

{
  "mcpServers": {
    "peerglass": {
      "command": "peerglass",
      "args": []
    }
  }
}

If peerglass is not in your PATH, use:

{
  "mcpServers": {
    "peerglass": {
      "command": "python",
      "args": ["/full/path/to/peerglass/server.py"]
    }
  }
}

Restart Claude Desktop. All 17 tools become immediately available.

Start the REST API

uvicorn api:app --host 0.0.0.0 --port 8000 --reload

Interactive docs at: http://localhost:8000/docs

Example Queries (Natural Language in Claude)

Phase 1 — Registry lookups:

"Who owns the IP address 185.220.101.1?"
"What is the abuse contact for 8.8.8.8?"
"Who is AS13335 registered to?"
"Are all 5 RIR RDAP servers online right now?"

Phase 2 — Routing security:

"Is the route 1.1.1.0/24 via AS13335 RPKI valid?"
"Is 8.8.8.0/24 currently visible in the global BGP table?"
"What prefixes is AS15169 (Google) announcing right now?"
"Find all internet resources registered to Cloudflare globally."

Phase 3 — Historical intelligence:

"Show me the full registration history of 8.8.8.0/24."
"Has the prefix 192.0.2.0/24 ever been transferred between organizations?"
"Give me the global IPv4 exhaustion stats for all 5 RIRs."
"Show me the prefix hierarchy for 1.1.1.0/24 — parent blocks and sub-assignments."

Phase 4 — Peering, IXPs, health & monitoring:

"Who does AS13335 (Cloudflare) peer with at internet exchanges?"
"List all IXPs where Google has a presence."
"Is the network for 1.1.1.0/24 currently healthy — any ROA issues or BGP anomalies?"
"Monitor AS13335 for changes since last baseline."

All 17 MCP Tools

Phase 1 — Registry Queries

Tool Description Cache TTL
rir_query_ip Query all 5 RIRs for an IP address (parallel) 1 hour
rir_query_asn Query all 5 RIRs for an ASN (parallel) 1 hour
rir_get_abuse_contact Find abuse contact for any IP globally 1 hour
rir_server_status Health check all 5 RDAP servers live
rir_cache_stats View query cache state and TTLs live

Phase 2 — Routing Intelligence

Tool Description Cache TTL
rir_check_rpki Validate RPKI/ROA status for prefix + ASN 15 min
rir_check_bgp_status Check BGP visibility for a prefix or ASN 5 min
rir_get_announced_prefixes List all BGP-announced prefixes for an ASN 5 min
rir_audit_org Audit all IP/ASN resources for an organization 6 hours

Phase 3 — Historical Intelligence

Tool Description Cache TTL
rir_prefix_history Full ownership timeline for any prefix or ASN 12 hours
rir_detect_transfers Detect cross-org / cross-RIR resource transfers 12 hours
rir_ipv4_stats Global IPv4/IPv6/ASN dashboard + optional delegated IPv4 block listing (include_blocks, filters, pagination) 24 hours
rir_prefix_overview Prefix hierarchy: parent, children, BGP status 1 hour

Phase 4 — Peering, IXPs, Health & Monitoring

Tool Description Cache TTL
rir_get_peering_info PeeringDB peering data + BGP neighbours for an ASN 1 hour
rir_lookup_ixps Search Internet Exchange Points globally 6 hours
rir_network_health RPKI + BGP + RDAP health composite check 5 min
rir_change_monitor Detect changes since last baseline (delta report) live

REST API — 15 Endpoints

PeerGlass exposes every tool as a REST endpoint, allowing integration with dashboards, scripts, and CI/CD pipelines — no Claude required.

Method Endpoint Description
GET /v1/ip/{ip} RDAP lookup for an IP address
GET /v1/asn/{asn} RDAP lookup for an ASN
GET /v1/abuse/{ip} Abuse contact for any IP
GET /v1/rpki?prefix=...&asn=... RPKI validation
GET /v1/bgp/{resource} BGP visibility status
GET /v1/announced/{asn} Announced prefixes for an ASN
GET /v1/org?name=... Audit all resources for an org name
GET /v1/history/{resource} Prefix/ASN ownership history
GET /v1/transfers/{resource} Transfer detection
GET /v1/stats/ipv4 Global IPv4/IPv6/ASN stats
GET /v1/overview/{prefix} Prefix hierarchy overview
GET /v1/peering/{asn} Peering info from PeeringDB
GET /v1/ixp IXP search and listing
GET /v1/health/{resource} Composite network health check
GET /v1/monitor/{resource} Change monitoring (delta)

Quick example:

# Look up who owns 1.1.1.1
curl http://localhost:8000/v1/ip/1.1.1.1

# Validate RPKI for Cloudflare's prefix
curl "http://localhost:8000/v1/rpki?prefix=1.1.1.0/24&asn=AS13335"

# Get BGP peers for Google
curl http://localhost:8000/v1/peering/AS15169

# List AFRINIC delegated IPv4 blocks (allocated + Ghana), paginated
curl "http://localhost:8000/v1/stats/ipv4?rir=AFRINIC&include_blocks=true&status=allocated&country=GH&limit=5&offset=0&format=json"

Interactive docs (Swagger UI): http://localhost:8000/docs

Architecture

┌─────────────────────────────────────────────────────────┐
│                    PEERGLASS                            │
│                                                         │
│   Claude (LLM)              REST Clients                │
│       │ MCP / stdio              │ HTTP                 │
│       ▼                          ▼                      │
│   server.py (17 tools)      api.py (15 endpoints)       │
│       │                          │                      │
│       └──────────┬───────────────┘                      │
│                  ▼                                       │
│           rir_client.py  ── All async HTTP calls         │
│                  │                                       │
│       ┌──────────┼──────────────────┐                   │
│       ▼          ▼                  ▼                   │
│  normalizer.py  formatters.py    cache.py               │
│  (unify RDAP)   (markdown/JSON)  (TTL tiers)            │
│       │                                                  │
│       ▼                                                  │
│    models.py  (Pydantic v2 data models)                  │
└─────────────────────────────────────────────────────────┘

External APIs called at runtime:
  ├── RDAP:    rdap.afrinic.net / rdap.apnic.net / rdap.arin.net
  │            rdap.lacnic.net  / rdap.db.ripe.net
  ├── RPKI:    rpki.cloudflare.com
  ├── BGP:     stat.ripe.net (bgp-state, announced-prefixes,
  │            routing-status, asn-neighbours, historical-whois)
  ├── IXP:     peeringdb.com/api/net, /api/ix, /api/netixlan
  ├── Stats:   NRO Extended Delegation Stats (all 5 RIRs)
  └── Routing: data.iana.org/rdap/ (IANA bootstrap)

How Parallel Queries Work

asyncio.gather() fires all 5 RIR queries at exactly the same time:

  AFRINIC ──── responds in 1.1s ──── 404 Not Found
  APNIC   ──── responds in 0.9s ──── ✅ 200 OK  ← authoritative
  ARIN    ──── responds in 1.2s ──── 404 Not Found
  LACNIC  ──── responds in 1.4s ──── 404 Not Found
  RIPE    ──── responds in 0.8s ──── 404 Not Found

Total wall-clock time: ~1–2s (parallel) vs ~6–8s (sequential)

Testing

PeerGlass has two separate test suites serving different purposes. You should run both — they catch different categories of problems.

┌─────────────────────────────────────────────────────────────┐
│                   TESTING PYRAMID                           │
│                                                             │
│      🔺 INTEGRATION TESTS  (test_integration.py)            │
│      /\   Real internet. Real APIs. Real data.              │
│     /  \  Proves the product actually works end-to-end.     │
│    /────\  Run this on your machine or a GCP VM.            │
│                                                             │
│   🔺 UNIT / STATIC TESTS  (test_peerglass.py)              │
│   /\   In-memory. No network. Instant.                      │
│  /  \  Proves code structure, branding, and wiring.         │
│ /────\  Runs anywhere including CI/CD.                      │
└─────────────────────────────────────────────────────────────┘

Test 1 — Static / Unit Tests (test_peerglass.py)

What it checks:

# Test What It Verifies
1 Compile check All 7 .py files parse without syntax errors
2 Branding audit No stale legacy product/server identity strings
3 RDAP endpoints All 5 RIR RDAP URLs are present and correct
4 Protocol header Accept: application/rdap+json is set
5 User-Agent Updated to peerglass/1.0.0
6 MCP server name "peerglass"
7 Tool count Exactly 17 @mcp.tool() decorators in server.py
8 REST endpoints All 15 routes present in api.py
9 FastAPI runtime TestClient hits 3 endpoints in-memory, validates responses
10 README PeerGlass branding, 17 tools, RDAP note all present

How to run:

cd peerglass
python test_peerglass.py

Expected output:

============================================================
PEERGLASS — COMPLETE TEST SUITE
============================================================
1. COMPILE CHECK
   ✅ server.py  ✅ rir_client.py  ✅ formatters.py
   ✅ models.py  ✅ cache.py  ✅ normalizer.py  ✅ api.py

2. BRANDING AUDIT — no stale WHOIS identity strings
   ✅ server.py  ✅ rir_client.py  ✅ README.md  ...

...

✅ ALL TESTS PASSED — 0 errors
  Python files: 7  |  MCP tools: 17  |  REST endpoints: 15
  Protocol: RDAP throughout (RFC 7480-7484)
  Branding: PeerGlass throughout
============================================================

When to run: Before every commit. Runs in under 3 seconds. No internet required.

Test 2 — Integration Tests (test_integration.py)

What it checks:

Real HTTP calls to external internet registries/data providers using well-known, stable test fixtures (Cloudflare AS13335, Google AS15169, 1.1.1.0/24). Every test asserts on actual response data — not just that the server responded.

# Test API Called Fixture Assertion
1 RDAP reachability All 5 RIRs 1.1.1.1 HTTP 200 or 404 (both mean server is up)
2 RDAP IP lookup APNIC 1.1.1.1 objectClassName=ip network, startAddress=1.1.1.0
3 RDAP ASN lookup ARIN AS13335 objectClassName=autnum, name contains CLOUDFLARE
4 RPKI validation RIPE Stat 1.1.1.0/24 AS13335 status=ok, validation status is valid
5 BGP status RIPE Stat 1.1.1.0/24 Prefix visible to RIS peers, origin ASN present
6 Announced prefixes RIPE Stat AS13335 >= 5 prefixes, mix of IPv4 + IPv6
7 Historical data RIPE Stat AS15169 status=ok, historical object versions returned
8 PeeringDB network PeeringDB AS13335 Network record found, peering policy present
9 IANA Bootstrap IANA AS13335 Mapped to correct RDAP service URL
10 AFRINIC RDAP AFRINIC 102.176.0.0 objectClassName=ip network, African country code
11 ASN neighbours RIPE Stat AS13335 Upstream / peer ASN list returned
12 PeeringDB IXPs PeeringDB global IXP list with name and country
13 IANA consistency IANA/ICANN IPv4 + IPv6 + ASN bootstrap files All 5 RIR service URLs present

How to run:

# On your local machine or a GCP VM (requires internet access)
cd peerglass
python test_integration.py

Expected output (passing):

============================================================
  PEERGLASS — LIVE INTEGRATION TEST SUITE
  Real HTTP calls. No mocks. No fakes.
============================================================
  Time: 2026-02-20 14:00:00 UTC
  APIs: RIPE · ARIN · APNIC · LACNIC · AFRINIC · RIPE Stat · PeeringDB · IANA

────────────────────────────────────────────
  TEST 1 — RDAP Server Reachability (all 5 RIRs)
────────────────────────────────────────────
   ✅ PASS  RIPE RDAP reachable      HTTP 404
   ✅ PASS  ARIN RDAP reachable      HTTP 404
   ✅ PASS  APNIC RDAP reachable     HTTP 200
   ✅ PASS  LACNIC RDAP reachable    HTTP 404
   ✅ PASS  AFRINIC RDAP reachable   HTTP 404

...

============================================================
  SUMMARY
  Checks run   : 48
  ✅ Passed    : 47
  ❌ Failed    : 0
  ⚠️  Skipped  : 1
  Duration     : ~20-40s

  🎉 ALL TESTS PASSED — PeerGlass live APIs confirmed working!
============================================================

When to run:

  • Before a release
  • After any change to rir_client.py (the HTTP layer)
  • After any change to the external API URLs or parameters
  • On a schedule (e.g. daily cron on a GCP VM) to detect API changes upstream

Why this cannot run in CI/CD without configuration: The integration tests require outbound internet access to external APIs (RIPE, ARIN, APNIC, LACNIC, AFRINIC, RIPE Stat, PeeringDB, IANA). Standard CI runners (GitHub Actions free tier) have internet access, so these tests can run there. Restricted sandboxes (Anthropic Claude environment, some corporate proxies) will block the outbound calls and every test will fail with 403 Forbidden — this is expected behaviour of the sandbox, not a bug in PeerGlass.

Understanding Test Results

Why does RDAP return 404 and still pass?

APNIC owns 1.1.1.0/24 (Cloudflare's block). If you ask RIPE for 1.1.1.1:

  You:  GET https://rdap.db.ripe.net/ip/1.1.1.1
  RIPE: HTTP 404

This 404 is RIPE saying "I know about this IP but it's not mine."
The server is alive and working correctly. 404 = server reachable.
200 = server reachable AND it's the authoritative RIR for that IP.
Both are valid success states for the reachability test.

Why does Test 7 sometimes SKIP?

RIPE Stat's historical-whois endpoint has variable coverage. For some ASNs it returns rich history; for others the objects array is empty. An empty array is a valid API response — the skip is logged to distinguish "no data" from "API broken".

Running Both Suites Together

cd peerglass

# Step 1: Always run static tests first (fast, catches code errors)
python test_peerglass.py
echo "Exit code: $?"

# Step 2: Only run integration tests if static tests pass
if [ $? -eq 0 ]; then
    python test_integration.py
fi

Verification — Source-Pinned Retrieval vs Model Recall

If you want to verify that PeerGlass is deterministic and source-pinned (real API retrieval) rather than model recall, run this quick check.

  1. Ask ChatGPT to fetch all 5 RIR RDAP endpoints for 1.1.1.1 and return raw JSON only.
  2. Repeat the exact same prompt multiple times.
  3. Compare ChatGPT output against direct endpoint results below.

Use this prompt in ChatGPT:

For IP 1.1.1.1, query these exact RDAP endpoints and return ONLY JSON:

- AFRINIC: https://rdap.afrinic.net/rdap/ip/1.1.1.1
- APNIC: https://rdap.apnic.net/ip/1.1.1.1
- ARIN: https://rdap.arin.net/registry/ip/1.1.1.1
- LACNIC: https://rdap.lacnic.net/rdap/ip/1.1.1.1
- RIPE: https://rdap.db.ripe.net/ip/1.1.1.1

Output schema per RIR:
{
  "rir": "...",
  "url": "...",
  "http_status": ...,
  "objectClassName": "... or null",
  "handle": "... or null",
  "error": "... or null"
}

Do not summarize. Do not infer.

Ground-truth script (direct endpoint calls):

python - <<'PY'
import asyncio
import json
import httpx

ENDPOINTS = {
    "AFRINIC": "https://rdap.afrinic.net/rdap/ip/1.1.1.1",
    "APNIC": "https://rdap.apnic.net/ip/1.1.1.1",
    "ARIN": "https://rdap.arin.net/registry/ip/1.1.1.1",
    "LACNIC": "https://rdap.lacnic.net/rdap/ip/1.1.1.1",
    "RIPE": "https://rdap.db.ripe.net/ip/1.1.1.1",
}

async def query_one(client, rir, url):
    try:
        r = await client.get(url, timeout=20)
        content_type = r.headers.get("content-type", "")
        data = r.json() if "json" in content_type else {}
        return {
            "rir": rir,
            "url": url,
            "http_status": r.status_code,
            "objectClassName": data.get("objectClassName"),
            "handle": data.get("handle"),
            "error": None,
        }
    except Exception as exc:
        return {
            "rir": rir,
            "url": url,
            "http_status": None,
            "objectClassName": None,
            "handle": None,
            "error": str(exc),
        }

async def main():
    headers = {
        "Accept": "application/rdap+json",
        "User-Agent": "peerglass/verification",
    }
    async with httpx.AsyncClient(headers=headers, follow_redirects=True) as client:
        results = await asyncio.gather(*[
            query_one(client, rir, url) for rir, url in ENDPOINTS.items()
        ])
    print(json.dumps(results, indent=2))

asyncio.run(main())
PY

If ChatGPT outputs are inconsistent or fail to fetch while direct calls are stable, that difference is exactly why PeerGlass uses deterministic source-pinned retrieval.

Adding Your Own Integration Tests

The test_integration.py script is designed to be extended. Each test follows this pattern:

async def test_your_thing():
    section("TEST N — Short description")
    print("  What API, what fixture, what you expect")

    url = "https://example-api.com/endpoint"
    params = {"resource": "your-fixture", "sourceapp": "peerglass-test"}
    headers = {"Accept": "application/json", "User-Agent": "peerglass/1.0.0 (integration-test)"}

    try:
        async with httpx.AsyncClient(timeout=25.0) as client:
            resp = await client.get(url, params=params, headers=headers)

        if resp.status_code != 200:
            fail("API returned 200", f"HTTP {resp.status_code}"); return

        data = resp.json()
        value = data.get("some", {}).get("field", "")

        ok("Field is what I expected", f"value='{value}'") if value == "expected" else fail("Field check", f"Got '{value}'")

    except Exception:
        fail("API call failed", traceback.format_exc()[-120:])

Then add it to the main() coroutine:

async def main():
    ...
    await test_your_thing()   # ← add here
    ...

External APIs Used

API Purpose Cache TTL
All 5 RIR RDAP endpoints IP/ASN registration data (RDAP JSON) 1 hr
data.iana.org/rdap/ Bootstrap: which RIR owns which IP/ASN range permanent
rpki.cloudflare.com RPKI/ROA validation (Validated ROA Payloads) 15 min
stat.ripe.net/data/bgp-state BGP routing table visibility 5 min
stat.ripe.net/data/announced-prefixes Prefixes announced by an ASN 5 min
stat.ripe.net/data/asn-neighbours BGP peer/upstream/downstream ASNs 1 hr
stat.ripe.net/data/historical-whois RDAP object change history (RIPE's naming) 12 hr
stat.ripe.net/data/allocation-history Allocation lifecycle events 12 hr
stat.ripe.net/data/prefix-overview Prefix hierarchy metadata 1 hr
stat.ripe.net/data/routing-status Routing status and visibility 5 min
peeringdb.com/api/net Network peering policies 1 hr
peeringdb.com/api/ix Internet Exchange Point directory 6 hr
peeringdb.com/api/netixlan Network-to-IXP membership records 1 hr
NRO Extended Delegation Stats Authoritative IPv4/IPv6/ASN allocation counts (all 5 RIRs) 24 hr

Phase 3 Data Sources Explained

RIPE Stat historical-whois

Records every change ever made to an RDAP object: when the org field changed, when the status changed, when a new maintainer was added. Used by rir_prefix_history and rir_detect_transfers. The name "historical-whois" is RIPE Stat's own endpoint naming — PeerGlass uses RDAP protocol throughout.

Coverage: Best for RIPE NCC resources. Partial for other RIRs.

RIPE Stat allocation-history

Logs the full allocation lifecycle: when a block was first allocated from the RIR pool, when it was sub-allocated to an ISP, when it was returned.

NRO Extended Delegation Stats

Published daily by each RIR as a pipe-delimited text file. Contains every single IP and ASN record ever created, with current status. Authoritative source for rir_ipv4_stats.

RIPE Stat prefix-overview / less-specifics / more-specifics

Three APIs queried in parallel to build the prefix hierarchy tree for rir_prefix_overview.

Use Case Workflows

BGP Hijack Investigation

1. rir_query_ip(suspicious_ip)         → Who registered this IP?
2. rir_check_bgp_status(prefix)        → Which ASN is announcing it right now?
3. rir_check_rpki(prefix, asn)         → Is the announcement RPKI-valid?
4. rir_prefix_overview(prefix)         → Any unexpected more-specifics?
5. rir_detect_transfers(prefix)        → Did this block recently change hands?

M&A Due Diligence

1. rir_audit_org(company_name)         → What IP blocks does this company own?
2. rir_prefix_history(each_prefix)     → When were they acquired?
3. rir_detect_transfers(each_prefix)   → Were any transferred recently?
4. rir_get_announced_prefixes(asn)     → What are they actively routing?

Peering & IXP Analysis

1. rir_get_peering_info(asn)           → Where does this network peer?
2. rir_lookup_ixps(city or ixp_name)  → Find IXPs in a region
3. rir_network_health(asn)             → Is the network healthy?
4. rir_change_monitor(asn)             → Any changes since last check?

Policy Research / ISOC Report

1. rir_ipv4_stats()                    → Full global IPv4/IPv6/ASN dashboard
2. rir_ipv4_stats(rir_filter="AFRINIC")→ Africa-specific detail
3. Compare ipv6_total_prefixes across  → IPv6 adoption rates by region

IPv4 Exhaustion Context

RIR IPv4 Free Pool Exhausted
APNIC 15 April 2011
RIPE NCC 14 September 2012
ARIN 24 September 2015
LACNIC June 2020
AFRINIC 2020–2021

All RIRs now operate under transfer policies. IPv4 addresses trade on the secondary market. rir_ipv4_stats tracks remaining pools in real time.

License

MIT

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