NythosX Agent Tools

com.nythosx.tools/agent-toolsVersion 1.0.0

Gas fees and USD tx costs on 6 chains, cheapest-chain ranking, URL to Markdown. Pay per call, x402.

Status

Responds437 msNov 14, 2026, 14:08 UTCAnswered our handshake without sign-in.

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Last checked: Nov 14, 2026, 14:08 UTC
Latency: 437 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://tools.nythosx.com/mcpResponds437 msNov 14, 2026, 14:08 UTC

No sign-in

Claude Code

claude mcp add --transport http agent-tools https://tools.nythosx.com/mcp

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: agent-tools
Remote MCP server URL: https://tools.nythosx.com/mcp

Cursor

{
  "mcpServers": {
    "agent-tools": {
      "url": "https://tools.nythosx.com/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"agent-tools","type":"http","url":"https://tools.nythosx.com/mcp"}'

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Tools

7 tools

Tools of NythosX Agent Tools
	Description		Read-only	Idempotent	Open world
`check_url_status`Check if a URL is reachable before paying to read it. HEAD request following up to five redirects: status code, final URL, content-type, content-length and last-modified — no page body fetched or charged for content. Use before read_url_as_markdown ($0.003) to confirm a URL resolves and is HTML before paying the bigger fee for extraction. Doesn't check robots.txt (that's enforced on the actual read). Some servers reject HEAD (405/403) even though GET works, so a non-2xx here doesn't guarantee read_url_as_markdown will also fail. Costs $0.001 USDC per call (x402).	Check if a URL is reachable before paying to read it. HEAD request following up to five redirects: status code, final URL, content-type, content-length and last-modified — no page body fetched or charged for content. Use before read_url_as_markdown ($0.003) to confirm a URL resolves and is HTML before paying the bigger fee for extraction. Doesn't check robots.txt (that's enforced on the actual read). Some servers reject HEAD (405/403) even though GET works, so a non-2xx here doesn't guarantee read_url_as_markdown will also fail. Costs $0.001 USDC per call (x402).	Not declared	Not declared	Not declared	Not declared
`compare_gas_costs`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[]). Costs $0.005 USDC per call (x402).	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[]). Costs $0.005 USDC per call (x402).	Not declared	Not declared	Not declared	Not declared
`estimate_custom_tx_cost`USD cost of a custom gas limit or compute-unit budget. Prices an arbitrary transaction, not just the 3 canned types get_gas_price/compare_gas_costs cover: pass your own gas limit (EVM chains) or compute-unit budget (Solana) and get its USD cost at a speed tier. Use this for a contract call, NFT mint or any tx whose gas usage you already know or estimated via eth_estimateGas/simulation — get_gas_price's 3 canned tx types won't fit it. Typical EVM units: 21,000 plain transfer, 50,000-65,000 ERC20 transfer, 100,000-250,000 typical contract call/NFT mint, 150,000-400,000 DEX swap; typical Solana compute units: 200,000 simple transfer, up to 1,400,000 (the per-tx cap) for a complex instruction. Excludes OP-stack L1 data fee (depends on calldata size, not gas limit) — add a few % for Base/Optimism to be safe. Costs $0.002 USDC per call (x402).	USD cost of a custom gas limit or compute-unit budget. Prices an arbitrary transaction, not just the 3 canned types get_gas_price/compare_gas_costs cover: pass your own gas limit (EVM chains) or compute-unit budget (Solana) and get its USD cost at a speed tier. Use this for a contract call, NFT mint or any tx whose gas usage you already know or estimated via eth_estimateGas/simulation — get_gas_price's 3 canned tx types won't fit it. Typical EVM units: 21,000 plain transfer, 50,000-65,000 ERC20 transfer, 100,000-250,000 typical contract call/NFT mint, 150,000-400,000 DEX swap; typical Solana compute units: 200,000 simple transfer, up to 1,400,000 (the per-tx cap) for a complex instruction. Excludes OP-stack L1 data fee (depends on calldata size, not gas limit) — add a few % for Base/Optimism to be safe. Costs $0.002 USDC per call (x402).	Not declared	Not declared	Not declared	Not declared
`get_gas_price`Current gas/fee tiers and USD costs for one chain. Slow/standard/fast gas tiers and USD cost of a transfer, USDC transfer and swap, for Base, Ethereum, Arbitrum, Optimism, Polygon or Solana. Updated every 15s. Solana is compute-unit pricing, not gwei-style gas; the other 5 are EVM. Use for one chain's prices; use compare_gas_costs to rank all 6, or estimate_custom_tx_cost for a gas limit/compute budget outside the 3 canned tx types here. x402: 402 first, retry with PAYMENT-SIGNATURE (MCP: _meta["x402/payment"]) — unpaid/failed calls are never charged. Costs $0.002 USDC per call (x402).	Current gas/fee tiers and USD costs for one chain. Slow/standard/fast gas tiers and USD cost of a transfer, USDC transfer and swap, for Base, Ethereum, Arbitrum, Optimism, Polygon or Solana. Updated every 15s. Solana is compute-unit pricing, not gwei-style gas; the other 5 are EVM. Use for one chain's prices; use compare_gas_costs to rank all 6, or estimate_custom_tx_cost for a gas limit/compute budget outside the 3 canned tx types here. x402: 402 first, retry with PAYMENT-SIGNATURE (MCP: _meta["x402/payment"]) — unpaid/failed calls are never charged. Costs $0.002 USDC per call (x402).	Not declared	Not declared	Not declared	Not declared
`get_native_token_price`USD price of a chain's native token, no gas data. Just the native-token USD price (ETH, POL or SOL), sourced from MEXC/Gate.io/Coinbase with the same price feed get_gas_price uses. Use this when you only need the asset price, not fees — get_gas_price and compare_gas_costs already return nativeUsd alongside gas data, so call this instead only to skip the gas lookup (e.g. valuing a wallet balance, not estimating a transaction). Costs $0.001 USDC per call (x402).	USD price of a chain's native token, no gas data. Just the native-token USD price (ETH, POL or SOL), sourced from MEXC/Gate.io/Coinbase with the same price feed get_gas_price uses. Use this when you only need the asset price, not fees — get_gas_price and compare_gas_costs already return nativeUsd alongside gas data, so call this instead only to skip the gas lookup (e.g. valuing a wallet balance, not estimating a transaction). Costs $0.001 USDC per call (x402).	Not declared	Not declared	Not declared	Not declared
`list_chains`List supported chains (Base, Ethereum, Arbitrum, Optimism, Polygon, Solana) and the gas-unit constants used by the paid tools (free). Always returns the full, unfiltered list of all 6 chains (no input/filter params). gasUnits.{transfer\|usdc_transfer\|swap} are plain integers: the gas units a typical transaction of that type costs on an EVM chain (evm) or in Solana compute units (svm) — multiply by the chain's current fee from get_gas_price to estimate USD cost yourself, or just call get_gas_price/compare_gas_costs which already does this.	List supported chains (Base, Ethereum, Arbitrum, Optimism, Polygon, Solana) and the gas-unit constants used by the paid tools (free). Always returns the full, unfiltered list of all 6 chains (no input/filter params). gasUnits.{transfer\|usdc_transfer\|swap} are plain integers: the gas units a typical transaction of that type costs on an EVM chain (evm) or in Solana compute units (svm) — multiply by the chain's current fee from get_gas_price to estimate USD cost yourself, or just call get_gas_price/compare_gas_costs which already does this.	Not declared	Not declared	Not declared	Not declared
`read_url_as_markdown`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. Costs $0.003 USDC per call (x402).	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. Costs $0.003 USDC per call (x402).	Not declared	Not declared	Not declared	Not declared

Details

Registry status: Active
Published: Oct 21, 2026
Updated: Oct 21, 2026
Website: https://tools.nythosx.com/⁠ (opens in a new tab)
Repository: Not given
Categories (suggested): Finance and paymentsSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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