List an address's token transfers

Keyset-paginated list of token transfers involving an address within a mandatory block window (from_block and to_block are both required). Ordered by (block_number, log_index) descending.

direction=in|out|any (defaults to any) filters by transfer direction relative to {address}. token optionally filters transfers for a specific token contract. standard must be erc20 or erc721; erc1155 returns 422 no_coverage. Opaque pagination token from the previous response's next_cursor; pass it back unchanged.

Window and head clamping: to_block above as_of_block is 409 not_indexed_yet unless clamp=true, which truncates to_block down to as_of_block (never possible when from_block is itself already past it — that stays a hard 409 regardless of clamp). meta.finalized_block is a marker and never bounds a window. A window wider than 100,000 blocks is 409 window_too_large unless clamp=true, which truncates from the older end (raises from_block, keeps to_block fixed). The window's lower bound is computed per dataset, not from the chain's start alone: the per-address ERC-20 / ERC-721 transfer index is a derived dataset, and while its backfill is still filling older blocks its data starts above GET /chains coverage.from_block. The dataset's start only counts when it is higher than the start of the token-transfer data it is derived from (a chain with no transfer at its beginning is not a gap). A window entirely before that start is 422 no_coverage; one that starts before it is partial, and clamp=true raises from_block to that start before the 100,000-block limit is applied. Limitation: during an ascending backfill the hole between the backfilled tail and the live start is not detected (the dataset's start is its lowest covered block), so a window inside that hole is still 200 with an empty list. When clamped or partial, meta.coverage = "partial" ("full" otherwise).