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Crosswalk between CoinMarketCap and CoinGecko coin ids

Source: R/crypto_crosswalk.R
crypto_crosswalk.Rd

Downloads the Open Crypto Pricing crosswalk, which links every CoinMarketCap id (as used by the crypto_* functions) to its CoinGecko coin (as used by the cg_* functions), including dead coins. Each pair is matched on contract addresses, project links, name/symbol and slug, cross-checked against DefiLlama, and confirmed on the price series of both providers. The file is updated weekly.

Usage

crypto_crosswalk(
  min_confidence = c("high", "medium", "low"),
  include_unmatched = FALSE,
  refresh = FALSE,
  quiet = FALSE
)

Source

Stoeckl & Pukrop (2026), Open Crypto Pricing, https://opencryptopricing.com. Licensed under CC BY 4.0: cite the source when you use or redistribute the crosswalk.

Arguments

min_confidence

Lowest match confidence to keep, one of "high" (default), "medium" or "low". Each level includes the ones above it, so "low" returns all published matches.

include_unmatched

If TRUE, also return coins listed by only one provider (match_confidence "cmc_only" or "cg_only"), which have NA for the other provider's ids. Default FALSE.

refresh

Download again even if the file is cached this session.

quiet

Suppress the one-line source message.

Value

Tibble with one row per coin:

uid

Open Crypto Pricing id, never reused (e.g. "OCP004106" for Bitcoin).

cmc_id

CoinMarketCap id (the id column of crypto_list()).

cg_id

CoinGecko slug (the slug column of cg_list()).

cg_numeric_id

CoinGecko numeric id (the id column of cg_list()).

name, symbol

Coin name and symbol.

match_confidence

"high", "medium" or "low", or "cmc_only" / "cg_only" for unmatched coins.

match_basis

The evidence that matched, joined by + (e.g. "contract+name_sym+slug+price").

defillama_check

"agrees", "disagrees", "suggests_pair_we_lack" or NA when DefiLlama has no entry.

is_stablecoin, is_derived_token, is_tokenized_tradfi

Logical flags.

Details

The file is downloaded once per session and cached in tempdir(). Parquet is used when the arrow package is installed, CSV otherwise.

Examples

if (FALSE) { # \dontrun{
cw <- crypto_crosswalk()

# CoinGecko history for the CMC top 100, via the crosswalk
top <- crypto_listings(limit = 100)
ids <- dplyr::inner_join(top, cw, by = c("id" = "cmc_id"))
hist <- cg_history(dplyr::select(ids, slug = cg_id, id = cg_numeric_id))
} # }