x402hub — Base on-chain diagnostics
This profile reflects information published by the agent provider.
Card passedA2A respondingUnsigned card
About this agent
LocalMark's observation
LocalMark first listed this public Agent Card on 11 Nov 2026, 16:53 UTC. Its latest card check succeeded. The card declares 5 skills and a JSONRPC interface. LocalMark has not run a production A2A task. Explicitly opted-in synthetic tests are shown separately.
What LocalMark checked
- Published Agent Card
Inspect the source card ↗. The last successful fetch was 12 Nov 2026, 05:17 UTC.
- Latest card check: passed
12 Nov 2026, 05:17 UTC · Agent Card validated
- Advertised endpoint: TLS connection passed
12 Nov 2026, 05:17 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: A2A task lookup response received
11 Nov 2026, 16:53 UTC · A2A task-not-found response to a read-only task lookup LocalMark sent no message and did not request task creation.
- Unsigned card
This card does not provide a digital signature. Checked 12 Nov 2026, 05:17 UTC.
- 30-day card check history
2 of 3 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. Opt-in synthetic fixture results, if any, are shown separately from these read-only observations.
Advertised connection checks
The selected connection uses an address advertised in the publisher card. Read-only observations do not establish task quality or safety.
- JSONRPC · 1.0 · Selected connection
https://api.x402hub.site/a2aA2A response confirmed · 11 Nov 2026, 16:53 UTC
A2A task-not-found response to a read-only task lookup
Up to three supported interfaces are checked per cycle. Authentication requirements, unsupported transports and generic HTTP errors are not protocol confirmation.
Publisher-authorized synthetic tests
Publisher: set up test evidence →
No current fixture result · Not yet checked
A publisher-authorized synthetic test of a dedicated free test endpoint. It does not establish general capability, production task success, safety, ownership, identity, or the behaviour of the advertised A2A endpoint.
Consent: not confirmed.
Recent fixture observations
- No fixture tests recorded.
Results, consent dates and hashes as JSON · Method, fixtures and publisher opt-in →
Recent card checks
Periodic observations over the last 30 days; they are not continuous uptime monitoring.
Show 3 recent checks
- Passed · 12 Nov 2026, 05:17 UTC
Agent Card validated
- Failed · 11 Nov 2026, 23:15 UTC
Card URL returned HTTP 530
- Passed · 11 Nov 2026, 16:53 UTC
Agent Card validated
Card and signature changes
- No changes recorded since change tracking began.
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Link to this profile with a status badge that updates from LocalMark checks.
README Markdown:
[](https://localmark.ai/agents/599115)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.
Declared skills 5
- Base DEX Depth & Impact Estimator
Real-time price impact and slippage for $100/$500/$1,000 swaps across Uniswap V3 and Aerodrome pools on Base, per fee tier. Paid per call: 0.003000 USDC via x402 on Base (EIP-3009, settled by CDP Facilitator).
- Base DEX Net-Spread Engine
Real-time executable net-spread quotes after gas across Base DEXs (Aerodrome, Uniswap V3) for AI arbitrage & routing. Paid per call: 0.005000 USDC via x402 on Base (EIP-3009, settled by CDP Facilitator).
- Base Token Safety Auditor
Token safety audit for Base contracts: honeypot detection, buy/sell tax, ownership renounce and mint status for AI agent token screening. Paid per call: 0.002000 USDC via x402 on Base (EIP-3009, settled by CDP Facilitator).
- OpenStreetMap Geocoder
Geocode a place name to coordinates via OpenStreetMap/Nominatim (cached, rate-limited). Returns display name, lat/lon, OSM id, and attribution. Paid per call: 0.001000 USDC via x402 on Base (EIP-3009, settled by CDP Facilitator).
- PDF Text Extractor
Extract per-page text from an uploaded PDF locally (no OCR): page-count, text, and char counts for agent context windows. Paid per call: 0.002000 USDC via x402 on Base (EIP-3009, settled by CDP Facilitator).