Build with CMC: API Hackathon · Real World Assets

Shelfware

Six in ten tokenised stocks on CoinMarketCap have no wrapper with a tracked market.

Built for Build with CMC v0.1.0 stdlib Python · keyless counted 2026-09-18 22:16 UTC

60%

476 of 791 underlyings flagged has_tokens: true · 2026-09-18 22:16 UTC · 5 keyed credits · a count, not a model

of the tokenised assets CoinMarketCap lists have no wrapper with a CMC-tracked market.

The problem

A boolean is not a market

An allocator vetting an issuer's catalogue opens CoinMarketCap's RWA page for Morgan Stanley. It says tokenised. Which wrapper? Does it trade? Whose is it? Same API, next endpoint over — a different answer.

/v5/real-world-assets/map — the claim

{
  "symbol": "MS",
  "name": "Morgan Stanley",
  "asset_type": "stock",
  "rwa_rank": 43,
  "has_tokens": true
}

/v5/…/quotes/latest tokens[] · /v1/cryptocurrency/map — the wrapper

{
  "symbol": "wMSx",
  "issuer_name": "Backed Assets",
  "price": null,
  "market_cap": null,
  "status": "untracked"
}

same API

The solution

Type MS. Get the receipt.

shelfware.edycu.dev/?t=MS

The live site answering MS: Morgan Stanley, has_tokens: true; one wrapper wMSx by Backed Assets on X Layer, price null, status UNTRACKED from /public-api/v1/cryptocurrency/map live keyless 0 credits, listed 2026-08-11, 38 days on the shelf; verdict 0 of 1 wrapper(s) with a CMC-tracked market

no key · no install · stdlib

$ git clone https://github.com/edycutjong/shelfware.git
$ python3 -m shelfware MS

MS  Morgan Stanley · stock · rwa_rank 43 · has_tokens: true
    roster: snapshot 2026-09-18T22:16:17Z (the RWA endpoints need a key)
    wMSx  Wrapped Morgan Stanley Tokenized Stock (xStock)
        issuer   Backed Assets
        chain    X Layer  0x2874A11805783324C54562eDB1A641C5d1d077a5
        price    null · market_cap null · volume_24h null
        status   UNTRACKED  ← /public-api/v1/cryptocurrency/map
                 live · keyless · 0 credits
                 "listed, no CMC-tracked market" — CMC
                 listed 2026-08-11 (date_added) · 38 days on the shelf

0 of 1 wrapper(s) with a CMC-tracked market
receipt: cmc/map symbol=wMSx → HTTP 200 · keyless · 0 credits to any key
         · 491 ms · sha256 d7e1ecdef293e6c8

How it works

Four ledgers, one join, three rules

The number — recount it yourself

476 / 791

underlyings flagged has_tokens: true whose every wrapper is untracked · stocks alone 437 of 689 (63%)

476 no tracked wrapper — listed, no CMC-tracked market315 at least one tracked wrapper

stock

49% shelf

etf

38% shelf

commodity

0% shelf

strict rule: an id on no public CMC surface (4 today) is shown, never counted · price == null ⇔ status == untracked held with zero exceptions

Live — shelfware.edycu.dev

Issuers, graded by their shelf

shelfware.edycu.dev — issuers, by shelf rate

The issuer scorecard on the live site: Dinari Assets 100% shelf, 27 of 27 untracked, $0 live; Backed Assets 82%, 632 of 772, $669M live; Robinhood 8%; Ondo Assets 2%, $891M; bStocks 0%, 77 of 77 tracked, $797M

1

2

3

shelfware.edycu.dev/?t=NVDA — evidence drawer, open

7 of 8 wrapper(s) with a CMC-tracked market
▾ evidence — the raw rows, endpoint, HTTP status, credit_count
/api/status → /public-api/v1/cryptocurrency/map?listing_status=active,inactive,untracked
  &symbol=NVDAX,WNVDAX,NVDAon,NVDA,NVDAB,rNVDA,NVDA → HTTP 200 · keyless · 0 credits
tokens[] entries — /v5/real-world-assets/quotes/latest
{ "crypto_id": 28616, "symbol": "NVDA.D", "issuer_name": "Dinari Assets",
  "price": null, "market_cap": null, "status": "untracked" }

4

1Dinari: 27 of 27 on the shelf, $0 live
2Backed: 632 of 772 (82%) beside $669M live
3bStocks: 0 of 77 — every wrapper trades, $797M
4NVDA: 7 of 8 tracked; Dinari's is the one on the shelf — raw rows shown

demo video: see BUIDL · NVDA for a mixed case (7 of 8 tracked; Dinari's is not), GILD or PLD for more shelf, GOLD for a commodity that trades

CoinMarketCap integration — every endpoint, and what calls it

Six endpoints. One join.

Endpoint	Leg	Access	What only it carries
`/v5/real-world-assets/map`	universe	keyed · 0 credits	791 underlyings flagged `has_tokens` — the claim
`/v5/real-world-assets/quotes/latest`	roster	keyed · 1 / 250 assets	`tokens[]` with `issuer_id` and the `price: null` rows the RWA pages hide
`/v5/real-world-assets/issuers/list`	registry	keyed · 1 credit	declared `num_tokens` — Backed declares 1176, attaches 772
`/v1/cryptocurrency/map` · `listing_status=active,inactive,untracked`	state	keyless · 0 credits	the only place a wrapper's tracked / untracked status lives
`/v2/cryptocurrency/info`	date	keyless · 0 credits	`date_added` → days on the shelf; state for the 38 dotted symbols the map filter rejects
`/v1/key/info`	receipt	keyed · 0 credits	credits used before and after — equals Σ `credit_count` over the run
`/v5/real-world-assets/market-pairs/list`	—	403 error 1006 on Startup	documented as Basic; tried, plan-gated, recorded in FEEDBACK.md §3 — not built on

Delete CoinMarketCap and both ledgers vanish: no other source lists the wrapper roster with its nulls, or the listing state that explains them. 12 dated findings for the CMC team are in FEEDBACK.md.

It runs — the census receipt, 2026-09-18T22:16:17Z

40.9 seconds, 5 credits, 121 tests

python3 -m shelfware census — live, keyed (A, B, C) + keyless (D)

1. /v5/real-world-assets/map             7,811 underlyings · 791 has_tokens
2. /v5/real-world-assets/quotes/latest   1,435 wrappers
3. /v5/real-world-assets/issuers/list    25 issuers
4. /public-api/v1/cryptocurrency/map     38,682 rows keyless
5. /public-api/v2/cryptocurrency/info    date_added for the shelf

wrappers untracked        673 of 1,435
underlyings, every wrapper untracked   476 of 791  → 60%
what trades is young      median 80 d · p90 380 (n=757)

40.9 s · 39 keyed calls = 5 credits · 15 keyless calls = 0 credits to any key
/v1/key/info before → after: 12020 → 12025   wrote docs/proof/live_run.json

552 ms

ticker question p50, keyless · p95 603 ms

1.17 ms

the join, 243 real wrappers · p95 1.48 ms

121

tests · 104 offline · 11 node · 6 live

500

generated ledgers, 0 failing · six invariants

The field — the RWA track, by name

They count what trades

Backstop48946 · closest

Issuer concentration by market cap — its own page sets aside "almost half the tokens" that report none. That half is ours.

Parity48797

Fair price and wrapper spread. Its pipeline runs presence → unit → liquidity first, so a null-price wrapper is excluded at step one.

Bedrock48952

A research explorer ranked by price and market cap — a wrapper priced null cannot enter a ranking.

Signal Desk48805

Twenty endpoints, one issuer view of what was issued. No listing state, so no shelf.

RWA Compass48802

An LLM agent labelling venue concentration of wrappers that trade. Shelfware has no model in it.

Shelfwarethis deck

673 null-price rows, counted; 476 underlyings with no market; every issuer graded by its shelf beside its live cap.

Same universe, opposite halves of the roster.

Honest limits

What the number does not say

The word is CoinMarketCap's

"untracked" means listed, no CMC-tracked market — not that nothing ever traded anywhere. Dinari dShares trade on Dinari's own venue. Every surface prints CMC's definition beside the state.

The roster leg needs a key

The RWA family refuses keyless calls (403 error 1005). With no key the roster is a dated snapshot, labelled; the state leg is live regardless. The census refuses to run without a key rather than replay.

Dotted symbols, two sources

The map's symbol filter rejects CMC's own NVDA.D — 38 wrappers. Those take a coarser state from /v2/cryptocurrency/info and the finer word from the snapshot; each row names both. Filed in FEEDBACK.md.

A young series, 4 unresolved ids

Daily snapshots since 2026-09-18; the delta panel shows what flipped. 4 wrapper ids resolve on no public CMC surface — shown in their own bucket, counted nowhere.

The ask — 30 seconds, no key

Clone it.
Type a ticker.

For judges — claim, path, receiptshelfware.edycu.dev/judge ↗ The one screen, liveshelfware.edycu.dev ↗ Repository — MIT, stdlib, 121 testsgithub.com/edycutjong/shelfware ↗ DEMO.md — both live runs with receiptsblob/main/DEMO.md ↗

A boolean says tokenised.
The join says whether it trades.

shelfware.edycu.dev/judge