Fact-check drafts before your pipeline publishes them.

# a newsletter draft in — atomic, verifiable claims out
draft = """
Space news this week. The James Webb Space Telescope
launched in December 2019 and orbits the Sun-Earth L2
point, about 1.5 million km from Earth. Its mirror has
18 hexagonal segments and spans 6.5 metres, which most
astronomers consider a leap over Hubble.
"""

out = client.extract(text=draft)
for c in out.claims:
    print("-", c.claim)
# opinions skipped, pronouns resolved, compounds split:
# - The James Webb Space Telescope launched in December 2019.
# - ...

# fast verdict from a panel of frontier models
r = client.assess(
    claim="The James Webb Space Telescope "
          "launched in December 2019.",
)
for c in r.claims:
    print(c.verdict, c.confidence)
    if c.rationale:
        print(c.rationale)
# False high
# It launched on 25 December 2021, after repeated
# delays, not in 2019.

# a list of up to 20 in one call:
# one row per claim, same order
rows = client.assess(claims=[
    "Water boils at 100 °C at sea level.",
    "Drinking coffee lowers the risk of heart disease.",
]).claims
for c in rows:
    print(c.verdict, c.confidence)
# True high
# Mostly True low

# deep check with citations
v = client.verify_and_wait(
    claim="The James Webb Space Telescope "
          "launched in December 2019.",
)

print(v.verdict, v.lenz_score, v.confidence)
# → "False" 1 "high"
# It launched on 25 December 2021, not in 2019.

for s in v.sources[:2]:
    print(s.title, s.url)
# → "James Webb Space Telescope" — science.nasa.gov

# a statement and the page it cites in;
# the finding and the passage out
check = client.citecheck_and_wait(pairs=[{
    "statement": "The Eiffel Tower was completed in 1889.",
    "url": "https://en.wikipedia.org/wiki/Eiffel_Tower",
}])
for c in check.citations:
    finding = c.result.finding if c.result else "failed"
    print(finding, c.check.snippet)