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api.veritylayer.dev

veritylayer.dev

VerityLayer verifies factual claims with confidence scores, evidence, and cryptographically signed receipts for AI agents.

ai_agent_tool
from$0.02

Trust signal

Emerging3939/ 100

4 of 4 pillars

coverage 100%

Pillars

Traction
50%
Liveness
64%
Identity
0%
Longevity
20%

Signals

On-chain settlement (CDP)
Active in last 30 days
Endpoint reachable
GitHub org present
X (Twitter) handle
.well-known/agent.json
skill.md published
ERC-8004 registered

Evidence tiers, not an endorsement · trust model v0.1.0 (provisional) · CDP-lane settlement only (D3) · Trust API coming soon

On-chain traction

Min price (402)$0.02
Total vol$2.91
30d vol$2.91
Total tx21
30d tx21
FirstJun 27, 2026
LastJul 8, 2026

ERC-8004 agent registry

—Not registered

Not found in the ERC-8004 agent registry. This is the default state — absence is not a negative signal.

Identity & classification

Domainveritylayer.dev
Xunverified
GitHubunverified
ENSunverified
Category confidenceunscored

Settlement volume

USDC settled on-chain · monthly

as of Jul 12, 2026

loading chart…

Endpoints(3)

https://api.veritylayer.dev/verify/quick

VerityLayer verifies whether a factual claim is true — fact-check, verify a claim, is this true. Independent, fail-closed verification for AI agents: returns a verdict (supported/unsupported/uncertain), a calibrated 0-1 confidence, reasoning, and evidence; abstains rather than guess. Every verdict includes an Ed25519-signed receipt — portable cryptographic proof of what was verified, free re-verification at /receipt/verify. Tier: quick — fast ungrounded pre-filter (Haiku).

$0.020 USDCpay_to unverifiedunreachableJul 6
https://api.veritylayer.dev/verify

VerityLayer verifies whether a factual claim is true — fact-check, verify a claim, is this true. Independent, fail-closed verification for AI agents: returns a verdict (supported/unsupported/uncertain), a calibrated 0-1 confidence, reasoning, and evidence; abstains rather than guess. Every verdict includes an Ed25519-signed receipt — portable cryptographic proof of what was verified, free re-verification at /receipt/verify. Tier: grounded — live web citations (Sonnet, default).

$0.250 USDCpay_to unverifiedunreachableJul 6
POSThttps://api.veritylayer.dev/verify/pro

VerityLayer verifies whether a factual claim is true — fact-check, verify a claim, is this true. Independent, fail-closed verification for AI agents: returns a verdict (supported/unsupported/uncertain), a calibrated 0-1 confidence, reasoning, and evidence; abstains rather than guess. Every verdict includes an Ed25519-signed receipt — portable cryptographic proof of what was verified, free re-verification at /receipt/verify. Tier: pro — grounded premium synthesis (Opus).

$0.350 USDCpay_to unverifiedlive · 16014msJul 6