An open resolver between CoinGecko IDs and CAIP-19 chain-agnostic identifiers. Every lookup is a static file: no key, no rate limit, no server that can be down differently from any other file.
Type a name, ticker, CoinGecko id or contract address. You get back every chain the asset is deployed on, as CAIP-19.
loading the registry…
The lookup above needs none of these. It loads the whole registry once and searches locally. These are for a program that wants one file.
| Route | Key | Returns |
|---|---|---|
/name/{slug}.json | lowercased, punctuation→- | every asset with that name, a group, because names are not unique |
/symbol/{slug}.json | same slug rule | every asset with that ticker. usdc returns 60+ |
/cg/{id}.json | CoinGecko ID | one asset with all its chain deployments |
/caip/{ns}/{ref}/{ans}/{aref}.json | CAIP-19 as a path | the asset at that exact identifier |
/far.json.gz | the entire registry, ~1.8 MB, often simpler than making requests |
/index.json | counts, source hashes, route list |
/manifest.json | sha256 of every file plus a Merkle root |
/_namespace-gaps.json | identifiers we had to invent because no CASA spec defines one |
curl -s https://0xcounting.github.io/FAR/cg/tether.json | shasum -a 256
# compare against the entry for cg/tether.json in /manifest.jsonThe manifest also carries a Merkle root over every
(path, hash) pair, so a single file can be proven to belong to a published
release without downloading the rest. An inclusion proof is about 17 hashes. Builds are
deterministic: same inputs, same root.
const BASE = 'https://0xcounting.github.io/FAR';
// by name — returns a GROUP, because names are not unique
const r = await fetch(`${BASE}/name/${slug}.json`);
if (r.status === 404) return null; // no asset by that name
const { assets } = await r.json();
// by CAIP-19 — ":" and "/" become path separators, "%" becomes "~"
const path = caip19.replace(/:/g, '/').replace(/%/g, '~');
const one = await fetch(`${BASE}/caip/${path}.json`);