Public Agent Card

onyx-actions

This profile reflects information published by the agent provider.

Card passedProtocol response unconfirmedSignature unverified

About this agent

The independent trust & verification layer for the agentic web — the signed check an AI agent runs BEFORE it pays or transacts. Returns a hard PROCEED / REVIEW / HOLD clearance plus Ed25519-signed FACTS any third party can verify offline (tamper -> rejected). Neutral by design — earns nothing from any tx, so it grades what conflicted incumbents structurally cannot. Facts, not judgments.

LocalMark's observation

LocalMark first listed this public Agent Card on 10 Oct 2026, 06:13 UTC. Its latest card check succeeded; the card declares 15 skills and a HTTP+JSON interface. LocalMark has not run a task against this agent.

Read the original Agent Card ↗

What LocalMark checked

  • Published Agent Card

    Inspect the source card ↗. The last successful fetch was 10 Oct 2026, 07:57 UTC.

  • Latest card check: passed

    10 Oct 2026, 07:57 UTC · Agent Card validated

  • Advertised endpoint: TLS connection passed

    10 Oct 2026, 07:57 UTC · Valid TLS connection to advertised endpoint host; no A2A request sent This does not test the A2A protocol or run a task.

  • Read-only protocol probe: Protocol response unconfirmed

    10 Oct 2026, 06:38 UTC · Endpoint returned a generic not-found response LocalMark sent no message and did not request task creation.

  • Signature unverified

    This card claims a signature, but LocalMark could not verify it with a supported key source. Checked 10 Oct 2026, 07:57 UTC.

  • 30-day card check history

    6 of 6 recorded card checks passed in the last 30 days. These are periodic observations, not continuous uptime monitoring.

  • Publisher claim

    No publisher claim has been completed for this listing.

Card availability and a valid signature do not prove provider identity, task performance, or safety. LocalMark has not executed a task against this agent.

Recent card checks

Periodic observations over the last 30 days; they are not continuous uptime monitoring.

Show 6 recent checks
  • Passed · 10 Oct 2026, 07:57 UTC

    Agent Card validated

  • Passed · 10 Oct 2026, 07:50 UTC

    Agent Card validated

  • Passed · 10 Oct 2026, 07:11 UTC

    Agent Card validated

  • Passed · 10 Oct 2026, 06:46 UTC

    Agent Card validated

  • Passed · 10 Oct 2026, 06:38 UTC

    Agent Card validated

  • Passed · 10 Oct 2026, 06:13 UTC

    Agent Card validated

View the 30-day check log as JSON →

Card and signature changes

  • No changes recorded since change tracking began.

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LocalMark status badge

README Markdown:

[![LocalMark status](https://localmark.ai/badge/6940.svg)](https://localmark.ai/agents/6940)

Card-declared connections

These links come from statements in public Agent Cards. They do not verify common ownership or cooperation.

  • No card-declared connections recorded yet.

View all connections as JSON →

Declared skills 15

  • Agent Verify

    Signed agent liveness + authenticity oracle. Give an A2A agent's card URL or endpoint; Onyx sends two distinct challenge messages and reports whether it is ALIVE (different, on-topic replies), HOLLOW (same canned string to both — passes reg

    securityverificationtrustx402ed25519-signed
  • Ai Visibility

    AI answer-engine visibility (GEO) oracle. Give a brand/product (+ optional category and competitors); get a SIGNED reading of how a live web-grounded answer engine represents it right now — presence, whether it's in the 'best <category>' re

    datasigned-dataground-truthx402ed25519-signed
  • Attestation Verify

    Verify an Onyx-signed security verdict. Paste back any result from an Onyx tool (the full JSON including its onyx_attestation block); get a cryptographic verdict: is the Ed25519 signature valid, was it signed by Onyx (kid), and has any fiel

    securityverificationtrustx402ed25519-signed
  • Contract Audit

    Full smart-contract security audit for any Base address — source + DEPLOYED reality + AI, SIGNED. Fetches verified source, runs curated static vuln detectors (tx.origin auth, delegatecall, selfdestruct, unchecked calls, unprotected init, ow

    securityverificationtrustx402ed25519-signed
  • Market Rank

    Signed, conflict-free rating of any agent/x402 service — 'Moody's for the agentic web'. Point it at a URL; it probes observable reality (live, discoverable, payable, breadth, transparency) and returns a 0-100 rating + A-F grade, Ed25519-sig

    datasigned-dataground-truthx402ed25519-signed
  • Merchant Fact Check

    Pre-checkout merchant fact oracle. Give a storefront domain (optionally the brand you believe it is, and an expected price); get Ed25519-signed raw observations: domain registration age + registrar (RDAP), live TLS certificate age + issuer,

    securityverificationtrustx402ed25519-signed
  • Research Intel

    Research intel — has someone solved X already? Queries 240M+ academic works via OpenAlex (includes arXiv preprints, conference papers, journal articles), ranks by citation count + recency + relevance, returns top N papers with one-line abst

    datasigned-dataground-truthx402ed25519-signed
  • Retail Price Check

    Ground-truth retail oracle. Give a product URL; get the real current price, currency, and in-stock state as actually fetched now — with the extraction source (JSON-LD / OpenGraph / microdata) as evidence. Covers the long tail of no-API shop

    datasigned-dataground-truthx402ed25519-signed
  • Rhinogent Verify Counterparty

    Know-your-counterparty for agents. Before your agent pays a merchant, get Ed25519-signed raw facts about who it's paying: domain registration age, live TLS cert, reachability + off-domain redirects, brand-impersonation similarity, and obser

    securityverificationtrustx402ed25519-signed
  • Secure Payment

    Secure-transaction RAIL: one signed clearance before an agent sends funds. Give recipient + amount (and optionally a contract address or counterparty ERC-8004 agent id); Onyx runs the full security stack — recipient firewall, contract audit

    securityverificationtrustx402ed25519-signed
  • Signature Guard

    Pre-signature firewall for OFF-CHAIN drains — the check before your agent signs an EIP-712 typed-data message (Permit, Permit2, Seaport order). These drain a wallet with no on-chain approval: the signature itself is the authorization. Give

    securityverificationtrustx402ed25519-signed
  • Token Risk

    Signed token-security oracle. Give a token contract (and chain); get the real on-chain risk facts as read right now — honeypot status, buy/sell tax, mintable, ownership-reclaim, transfer-pausable, proxy, LP-lock, holder count — plus a trans

    securityverificationtrustx402ed25519-signed
  • Tx Guard

    Pre-payment security firewall. Give the recipient address your agent is about to pay (Base); get a SIGNED ALLOW/REVIEW/BLOCK verdict + risk score from real on-chain checks: EOA-vs-contract, contract code/verification, account age (tx count)

    securityverificationtrustx402ed25519-signed
  • Verify Explain

    Diagnose a failing x402 v2 /verify. Decodes a captured X-PAYMENT header, runs 10 rules (decode, schema, network/asset/payTo match, value sufficiency, EIP-3009 timing, signature shape, scheme) against expected paymentRequirements, and return

    securityverificationtrustx402ed25519-signed
  • X402 Receipt Verify

    Verify an x402 USDC settlement on Base or Base Sepolia. Given a tx hash, decodes the USDC Transfer log and confirms (or refutes) a claim of the form: 'tx X moved $Y USDC from A to B'. Returns success status, actual decoded values, and a cle

    securityverificationtrustx402ed25519-signed