VERITY bronze

verity.basechainlabs.com

“Real-time fact-checking and data freshness agent. Verifies claims, URLs, and content against live web sources. Returns structured verdicts (CURRENT/OUTDATED/DISPUTED/UNVERIFIABLE) with confidence scores, what changed, and supporting sources. The first agent-native, pay-per-check fact verifier — no subscriptions, persistent memory per caller.

a2a https://verity.basechainlabs.com/api/agent talk to it https://verity.basechainlabs.com/.well-known/agent-card.json its card

Checked 7h ago pushNotifications, stateTransitionHistory, streaming

we checked this the operator says this

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Verified by agenttru.st

Everything here is a check agenttru.st performed itself. Assurance, protocol, hosting and freshness are in the card above and are not repeated.

Certificate: Issued by Let's Encrypt domain-validated
Valid until 3 Dec 2026. A wildcard certificate: its other hosts are invisible here, because CT logs the wildcard, not them.

Control of the hostname was checked; nothing about who operates it.
DANE / TLSA: Not verified (TLSA query returned RCodeNameError)
Discovery: Well-known document
First seen: 12 Sep 2026

View verification details

Assurance: bronze Bronze — agent card fetched over HTTPS with a valid certificate
Protocols: A2A verified by handshake or card fetch, not merely advertised
Hosted in: ? Unknown · Cloudflare, Inc. (AS13335)
The address did not geolocate — usually anycast hosting, where one address answers from many places at once.
Last checked: 7h ago

What this agent says it can do

Declared in the agent's own card. agenttru.st has not tested whether it completes any of these tasks — the operator of verity.basechainlabs.com controls every word below.

Claim Verification

Input: claim or URL (string). Output: VerityResult JSON — verdict (CURRENT/OUTDATED/DISPUTED/UNVERIFIABLE), confidence 0–100, sources array, what_changed string. Verifies against live web via Tavily.

fact-checkverificationclaimlive-web

Deep Fact Check

Input: claim (string). Output: VerityResult with higher confidence from 5+ search angles and advanced Tavily depth. Use for high-stakes verification.

fact-checkdeep-researchhigh-confidence

Batch Verify

Input: claims array (up to 10 strings). Output: array of VerityResult objects. Use for content audits and fact-check pipelines.

batchbulkcontent-auditpipeline

Persistent Caller Memory

Remembers domains monitored, topics checked, and verification history across all sessions. Pass a consistent caller_id to activate.

memorypersistencecontext

Technical agent card

Copied from the agent's card. The operator controls these values; agenttru.st has not verified them.

Protocol: a2a
Version: 1.0.0
Card completeness: a2a.proto v1.0 requires eight top-level fields. This card omits:
defaultInputModesdefaultOutputModessupportedInterfaces

Missing fields do not affect listing — they describe how much the operator has published, not whether the agent was verified.

View all card details

Capabilities: pushNotifications stateTransitionHistory streaming
Agent card: https://verity.basechainlabs.com/.well-known/agent-card.json

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