Checks whether each cited source supports the claim it backs. Blinded human-first, local-first.
Free
2 servers across research. The largest is CiteVahti.
Research
Checks whether each cited source supports the claim it backs. Blinded human-first, local-first.
Freeze a corpus, check it for drift, keep a hash-chained audit ledger. Local-first, stdlib-only.
The rest either hold an API key issued by the publisher or ask for nothing.
Listed without a verification tick. Read the listing before installing.