DELTA Witness API

Agent Tools · Operational · checked 40h ago · 30d uptime 100%
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DELTA Witness — Trust Layer for Autonomous Actions. Observe a public source immediately before software takes a consequential action. DELTA returns timestamped content hashes and a public verifier while keeping raw capture artifacts private. Capture preserves what a public page says now through POST /v1/capture. Guard/Preflight compares a fresh observation with a prior DELTA proof, expected hashes, or explicit text rules through POST /v1/preflight. $10 Guarded-Action Pilot bundles 1-3 public URL proofs for Base mainnet USDC settlement. Payment: x402 v2 on Base mainnet USDC (eip155:8453). Endpoints: /v1/quote (get pricing), /v1/capture ($1/observation), /v1/preflight ($5/check), /v1/guarded-action-pilot ($10/package).

Trust signals

Pricing
PAID
Auth
NONE
CORS
Yes
Rate limit
Unknown
Health
203 ms
Trust score
90 (A)80% evidence

Uptime

Uptime 24h100.0%
Uptime 7d100.0%
Uptime 30d100.0%

Trust factors

30 day uptime — 25%100
response time — 15%100
documentation quality — 15%100
auth clarity — 10% (unverified)—
CORS — 10% (unverified)—
pricing clarity — 10%100
freshness — 10%100
OpenAPI availability — 5%100

Excellent production-readiness signals. 80% of weighted signals verified.

80% of weighted signals verified · unverified: auth clarity, CORS

Facts

Access

AuthenticationNONE
PricingPAID
Rate limitnot yet verified
Credit card requirednot yet verified
Commercial use allowedyes

Health & trust

Health statusOPERATIONAL
Uptime 24h100%
Uptime 7d100%
Uptime 30d100%
Response time203 ms
Trust score90 (grade A)
Evidence confidence80%
Unverified signalsauth clarity, CORS
Last checked2026-11-03T19:45:17.815Z

Verification

FieldSourceVerified at
pricingCORE_API_REVIEW2026-09-16T00:00:00.000Z
authenticationnot yet verifiednot yet verified
documentationCORE_API_REVIEW2026-09-16T00:00:00.000Z
corsnot yet verifiednot yet verified

Data updated 2026-11-03T19:45:17.815Z

Links

Integration checklist

  • Auth is NONE
  • CORS enabled — callable directly from browsers.
  • Rate limit: not documented
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DELTA Witness API — pricing, auth, CORS & health | Reqistry