Public Agent Card

NythosX Agent Tools

This profile reflects information published by the agent provider.

Card passedJSON-RPC answered; task lookup unavailableUnsigned card

About this agent

Pay-per-call tools for autonomous agents: current gas and fee prices across six chains (Base, Ethereum, Arbitrum, Optimism, Polygon, Solana) and web page to clean Markdown. Paid in USDC via x402 v2 on Base (Solana optional). This A2A endpoint answers free questions: supported chains, current Base gas, and the paid catalog.

LocalMark's observation

LocalMark first listed this public Agent Card on 23 Oct 2026, 05:38 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.

Read the original Agent Card ↗

What LocalMark checked

  • Published Agent Card

    Inspect the source card ↗. The last successful fetch was 24 Oct 2026, 13:17 UTC.

  • Latest card check: passed

    24 Oct 2026, 13:17 UTC · Agent Card validated

  • Advertised endpoint: TLS connection passed

    24 Oct 2026, 13:17 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: JSON-RPC answered; task lookup unavailable

    24 Oct 2026, 07:14 UTC · Endpoint answered JSON-RPC, but neither tasks/get (A2A 0.3) nor GetTask (A2A 1.0) is available. Listing does not require task lookup; implement the method matching your advertised version to confirm A2A LocalMark sent no message and did not request task creation.

  • Unsigned card

    This card does not provide a digital signature. Checked 24 Oct 2026, 13:17 UTC.

  • 30-day card check history

    15 of 15 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 · 0.3.0 · Selected connection

    https://tools.nythosx.com/a2a

    Task lookup unsupported · 24 Oct 2026, 07:14 UTC

    Endpoint answered JSON-RPC, but neither tasks/get (A2A 0.3) nor GetTask (A2A 1.0) is available. Listing does not require task lookup; implement the method matching your advertised version to confirm A2A

Up to three supported interfaces are checked per cycle. Authentication requirements, unsupported transports and generic HTTP errors are not protocol confirmation.

Repair connection or request a recheck →

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 12 recent checks
  • Passed · 24 Oct 2026, 13:17 UTC

    Agent Card validated

  • Passed · 24 Oct 2026, 11:16 UTC

    Agent Card validated

  • Passed · 24 Oct 2026, 09:15 UTC

    Agent Card validated

  • Passed · 24 Oct 2026, 07:14 UTC

    Agent Card validated

  • Passed · 24 Oct 2026, 05:13 UTC

    Agent Card validated

  • Passed · 24 Oct 2026, 02:54 UTC

    Agent Card validated

  • Passed · 24 Oct 2026, 00:27 UTC

    Agent Card validated

  • Passed · 23 Oct 2026, 22:09 UTC

    Agent Card validated

  • Passed · 23 Oct 2026, 19:51 UTC

    Agent Card validated

  • Passed · 23 Oct 2026, 17:31 UTC

    Agent Card validated

  • Passed · 23 Oct 2026, 15:08 UTC

    Agent Card validated

  • Passed · 23 Oct 2026, 12:49 UTC

    Agent Card validated

View the 30-day check log as JSON →

Card and signature changes

  • Card changed

    24 Oct 2026, 09:15 UTC · Confirmed published card change: skills_updated; fingerprint 80ef1395db41

View detailed card versions → · Subscribe to card changes

Share this listing

Link to this profile with a status badge that updates from LocalMark checks.

LocalMark status badge

README Markdown:

[![LocalMark status](https://localmark.ai/badge/327508.svg)](https://localmark.ai/agents/327508)

Card-declared connections

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

View all connections as JSON →

Declared skills 5

  • Convert any web page into clean, readable Markdown

    Fetches a public web page and returns clean Markdown: title, byline, site name, excerpt, word count and article body. Respects robots.txt, blocks private hosts, follows up to five redirects, caps the page at 3 MB. links=true adds outbound links. Not charged on failure: 403 if robots.txt disallows the path, 415 for non-HTML, 422 if no article text extracts, 502 on upstream error. Paid: $0.003 USDC via x402 at GET https://tools.nythosx.com/v1/read.

    x402paid
  • Current Base gas (free)

    Live gas and fee tiers for Base, cached 30 s at the edge. Ask: 'gas base' or 'base gas now'.

    freegasbase
  • Current gas and fee prices for one chain

    Current gas and fee prices for Base, Ethereum, Arbitrum, Optimism, Polygon or Solana: slow/standard/fast tiers and the USD cost of a transfer, USDC transfer and swap. Updated every 15 seconds. Paid via x402: the first call returns 402 with payment requirements; retry with a PAYMENT-SIGNATURE header (or, over MCP, with payment in _meta["x402/payment"]) to get the 200 response — failed/unpaid calls are never charged. Paid: $0.002 USDC via x402 at GET https://tools.nythosx.com/v1/gas.

    x402paid
  • Supported chains (free)

    List supported chains and gas-unit constants. Ask: 'chains' or 'what chains do you support'.

    freechains
  • Where is it cheapest to send this transaction right now?

    Ranks all 6 supported chains (Base, Ethereum, Arbitrum, Optimism, Polygon, Solana) by USD cost for a transaction type (transfer, USDC transfer or swap) at a speed tier (slow/standard/fast). Returns the ranking, the cheapest chain, and any chains queried in parallel that didn't respond (in failed[]). Paid: $0.005 USDC via x402 at GET https://tools.nythosx.com/v1/gas/compare.

    x402paid