ZBS Index What actually exists in applied AI, with the source next to it

mcp server

Gas Estimator API

Multi-chain gas estimation — ETH, Base, Polygon, Arbitrum, BSC. x402 micropayment.

Description as published by the maintainer. Source

  • version 1.1.0
  • active

active — Most recent push to the repository was 2026-07-19.

What this server can do

1 function, named and described by the server itself. Parameter names are shown because they say more about what a function does than its name usually does.

crypto_estimate_gas(chain)
Use this when you need to compare gas prices across multiple EVM chains at once. Returns multi-chain gas estimates in JSON. 1. chains: array of chain gas data with chain name 2. low: gas price in gwei for slow confirmation 3. medium: gas price in gwei for standard confirmation 4. high: gas price in gwei for fast confirmation 5. transferCostUsd: estimated USD cost for a simple transfer on each chain 6. cheapestChain: which chain currently has the lowest gas cost Example output: {"chains":[{"chain":"base","low":0.005,"medium":0.008,"high":0.012,"transferCostUsd":0.01},{"chain":"ethereum","low":12.5,"medium":18.0,"high":25.0,"transferCostUsd":0.85}],"cheapestChain":"base"} Use this FOR choosing the cheapest chain before a cross-chain transaction. Essential for multi-chain agents that need to optimize gas costs. Do NOT use for single-chain gas only -- use gas_get_current_price instead. Do NOT use for swap quotes -- use dex_get_swap_quote instead. Do NOT use for bridging -- use bridge_find_best_route instead.

Last successful function declaration observed on . Source: https://gas-estimator.api.klymax402.com/mcp. We list what the server declared; we do not call any of these functions.

Endpoint status observed on . Source: https://gas-estimator.api.klymax402.com/mcp.

Signals

These are separate measurements of different things. They are deliberately not combined into one score, because a popularity number that mixes website traffic with saves and stars cannot be checked or acted on.

Signal Value What it measures Window Observed Source
GitHub stars 0 Number of GitHub accounts that bookmarked this repository since it was created. It is a bookmark count, not installs, not active users and not quality. cumulative, all time GitHub
Last commit 2026-07-19 Date of the most recent push to any branch. This is the strongest cheap indicator of whether the project is still maintained. point in time GitHub
Open issues 0 Open issues plus open pull requests, as GitHub counts them together. A high number can mean an active project or an abandoned one. as of fetch GitHub
Latest published version 1.1.0 Latest version string the maintainer published to the registry. as of fetch Model Context Protocol
Registry record last updated 2026-05-16 When the registry record was last updated by its maintainer. point in time Model Context Protocol
License MIT Licence GitHub detected in the repository. Detection can be wrong; the LICENSE file is authoritative. as of fetch GitHub
First listed in the MCP Registry 2026-05-16 Date this server was first published to the official MCP Registry. Not a usage or quality measure. point in time Model Context Protocol
repository status active The repository exists on GitHub and is not archived. This says nothing about how recently it was worked on. as of fetch GitHub
mcp tools declared 1 tools Number of functions the server itself declared when asked to list them. This is what the server offers an agent, not a measure of how well any of them work. as of probe gas-estimator.api.klymax402.com
mcp endpoint status ok The server listed 1 function when asked. as of probe gas-estimator.api.klymax402.com

Where to get it

Related, by what their authors tagged them

  • Gas Oracle API — last commit 2026-07-31, shares crypto, ethereum, gas
    Real-time gas prices, gwei tiers, USD cost estimates for Base and Ethereum. x402.
  • Solana Priority Fee Estimator API — last commit 2026-07-18, shares crypto, ethereum, gas
    Solana priority fees at 6 levels, cost in SOL/USD, congestion. x402.
  • io.github.amarodeabreu/rug-munch-mcp — last commit 2026-03-31, shares crypto, ethereum, x402
    Crypto risk intelligence: 19 tools for rug pull detection, AI forensics, and token analysis.
  • Fundchain — last commit 2026-05-12, shares crypto, ethereum, x402
    Crypto crowdfunding for AI agents. Create campaigns, accept ETH/USDC via x402 protocol.
  • Chainflip Broker as a Service — last commit 2026-07-23, shares crypto, ethereum
    Native cross-chain swaps: Bitcoin, Ethereum, Solana, Polkadot, Tron, Arbitrum. Quote, swap, track.
  • AllocContext — last commit 2026-07-10, shares crypto, ethereum
    Self-host MCP: portfolio crypto context for agents. PyPI stdio; MIT.
  • io.github.andresdefi/zerodust — last commit 2026-07-25, shares crypto, ethereum
    Recover stranded native gas: empty a chain's balance to exactly zero on 25 EVM chains.
  • io.github.calintzy/evmscope — last commit 2026-07-21, shares crypto, ethereum
    EVM blockchain intelligence toolkit for AI agents. 20 tools across 5 chains. Zero config.
  • io.github.cyanheads/coingecko-mcp-server — last commit 2026-07-30, shares crypto, ethereum
    Crypto market data via CoinGecko — prices, markets, history, trending, and deep coin metadata.
  • io.github.flat-cash/flatcash — last commit 2026-07-30, shares crypto, ethereum
    Earn FLAT tokens (CPI-pegged stablecoin) by completing bounties. No wallet required.

These share tags the maintainers applied themselves, such as crypto, ethereum, gas, x402. Common tags like "mcp" or "ai" are ignored for this: agreeing with six hundred other projects is not a similarity.

This is not a recommendation and not a test result. It is a map of what the authors said their work is about.

Also from br0ski777

  • Address Validator API — last commit 2026-07-19
    Parse, validate and normalize postal addresses. Detect country, verify format. x402.
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    Summarize text or URLs into key points with compression ratio and reading time. x402 USDC.
  • Airdrop Checker API — last commit 2026-07-19
    Check wallet eligibility for active crypto airdrops — LayerZero, EigenLayer, Scroll. x402.
  • Barcode Generator API — last commit 2026-07-18
    Generate barcodes — EAN-13, UPC-A, Code128, Code39. Returns SVG. x402 micropayment.
  • Base DeFi Yield Optimizer API — last commit 2026-07-19
    Base chain DeFi yields — Aerodrome, Moonwell, APY, TVL, risk scores. x402.
  • Base64 Codec API — last commit 2026-07-18
    Encode/decode base64 and URL-safe base64. x402 micropayment.
  • Cross-Chain Bridge Route API — last commit 2026-07-19
    Best cross-chain bridge routes with fees, time, providers. LI.FI-powered. x402.
  • Code Sandbox API — last commit 2026-07-31
    Execute Python, JavaScript, SQL code in a sandbox. x402 micropayment.
  • Color Palette Generator API — last commit 2026-07-18
    Generate harmonious color palettes — complementary, analogous, triadic. x402 micropayment.
  • Company Enrichment API — last commit 2026-07-31
    Company firmographics from domain: name, socials, tech stack, emails, phone, address

How the author describes it

Topics the maintainer set on GitHub: ai-agents, crypto, ethereum, gas, mcp, mcp-server, x402.

This record as data

Every field on this page, with its source and observation date, is in the catalog JSON. Fetch the whole kind at once instead of parsing this HTML.

GET /api/v1/entries/mcp_server.json

Sources

  1. Br0ski777/gas-estimator-x402 on GitHub — GitHub, observed , trust tier 3.
  2. Tools declared by the MCP server at https://gas-estimator.api.klymax402.com/mcp — gas-estimator.api.klymax402.com, observed , trust tier 1.
  3. Official MCP Registry — Model Context Protocol, observed , trust tier 1.