Chain Check (x402)
x402-paid on-chain tools: wallet report, contract scan, token risk, gas, address labels (USDC/Base)
MCP server · by chaincheck-api.netlify.app
About
Chain Check (x402) is an MCP server published by chaincheck-api.netlify.app. Marketplaces we read that list it: 1 (Official MCP Registry). We first saw it on 2026-11-02 and have recorded no change since. As of our marketplace pass on 2026-11-06.
What it asks for
- Runs remotely
None of the marketplaces we read publishes its tools or the settings it asks for.
What it declares, asks for and runs, in full
Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.
Works with
- Claude Code
- Codex
- Cursor
- VS Code
- Copilot CLI
A one-click link opens the client, which asks you to confirm before it adds the server.
From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.
Connect
Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.
As a remote MCP server
Built from what Official MCP Registry declares.
claude mcp add --transport http chaincheck https://chaincheck-api.netlify.app/mcp
[mcp_servers.chaincheck]
url = "https://chaincheck-api.netlify.app/mcp"
{
"mcpServers": {
"chaincheck": {
"url": "https://chaincheck-api.netlify.app/mcp"
}
}
}
Where it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| Official MCP Registry (Open the registry record) | Listed | 1.0.0 | No figure published | Not marked |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
What changed
- Became a product we track
- Official MCP Registry: appeared
Similar plugins
Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.
-
base-onchain-tools dev.workers.dolerite.base-onchain-tools/base-onchain-tools
Base mainnet analysis: contract audits, transfer simulation, token pricing. Paid via x402.
-
Blockchain intelligence for tracing funds, screening addresses, and investigating on-chain activity.
-
Screen Base ERC-20 tokens, inspect wallets, simulate txs, price gas. $0.01 in USDC.
-
crypto-mcp tech.htsapp/crypto-mcp
Crypto rug/scam-risk scans + wallet snapshots (EVM + Solana), paid per call via x402.
-
Pay-per-call crypto intel via x402: honeypot/rug check, whale flows, unlocks, MEV, liquidation risk
-
Keyless, read-only BNB Chain and Ethereum data: transactions by hash, tokens with a lookalike check
-
Check a Base contract, transaction or web page before you act. Free pricing, paid per call in USDC.
-
Multi-chain on-chain intelligence for AI agents through a public remote MCP server.
-
base-web3-m2m-hub io.github.castralis122/base-web3-m2m-hub
Live Base Mainnet on-chain data (gas, DEX, Aave, token risk, prices). Pay per call in USDC via x402.
-
mcp-server io.github.ramaris-app/mcp-server
On-chain wallet analytics and trading strategies on Base for AI assistants
Similar plugins by marketplace
The same question asked of one marketplace at a time: is there an analog of this plugin there?
Has a listing on Claude Code: claude-plugins-community (5)
-
Solana token safety scanner behind x402 micropayments. Checks mint/freeze authority, holder concentration, liquidity, LP locks, honeypot detection, metadata mutability, token age…
-
Connect Claude to 15,000+ blockchain subgraphs via The Graph's Subgraph MCP server. Query DeFi, NFT, DAO, and governance data in natural language without writing GraphQL.
-
Build on Solana with Helius — live blockchain tools, expert coding patterns, and autonomous account signup
-
A Claude Code plugin with skills for working with the Sentio platform — building blockchain data processors, running SQL queries, managing alerts, dashboards, and endpoints.
-
BTC signals, ACP service monitoring, on-chain oracle for Claude Cowork. By cognac(꼬냑)
Has a listing on Claude Code: claude-plugins-official (5)
-
Ship stablecoin apps faster. Best-practice skills for USDC payments, cross-chain transfers, wallets, and smart contracts — plus Circle's MCP server for real-time SDK and…
-
Carta Cap Table plugin — skills and hooks for querying cap tables, grants, SAFEs, 409A valuations, waterfall scenarios, and more
-
Carta Investors plugin — skills for querying investor data, performance benchmarks, regulatory reporting, AGM deck generation, brand extraction, and more via the Carta MCP Server.
-
Portfolio monitoring and analytics for private-capital LP teams using the Chronograph connector: cashflow forecasting, commitment pacing, look-through exposure scans and…
-
LinqAlpha financial research in Claude: guided setup for the LinqAlpha connector, capability-based source selection for fundamentals, estimates, transcripts, filings and market…
Has a listing on Claude: knowledge-work-plugins (5)
-
Carta Cap Table plugin — skills and hooks for querying cap tables, grants, SAFEs, 409A valuations, waterfall scenarios, and more
-
Financial analysis skills powered by Daloopa's institutional-grade data
-
Carta Investors plugin — skills for querying investor data, performance benchmarks, regulatory reporting, AGM deck generation, brand extraction, and more via the Carta MCP Server.
-
Portfolio monitoring and analytics for private-capital LP teams using the Chronograph connector: cashflow forecasting, commitment pacing, look-through exposure scans and…
-
Portfolio monitoring, valuations and analytics for private-capital GP teams using the Chronograph connector: portfolio-company one-pagers, fund quarterly review packs…
Has a listing on Codex: openai-curated (openai/plugins) (5)
-
Public equity investing workflows for listed-company research, earnings analysis, valuation, model updates, long/short pitches, catalysts, thesis tracking, ETF/index and…
-
Available for US1 customers only. Analyze, investigate, and act on your Datadog telemetry directly from ChatGPT using natural language. Ask questions about your production…
-
Cloudflare platform plugin with curated skills for Workers, Wrangler, and Agents SDK plus the official Cloudflare API MCP server.
-
CrowdStrike Falcon Foundry development skills for building cybersecurity applications on the Falcon platform. Includes UI development, collections, functions, workflows, API…
-
Evaluate Codex skills and plugins from chat with a beginner-friendly start command, local-first reports, token budget explanations, and guided benchmarking.
Has a listing on Community GitHub marketplaces (5)
-
On-chain AI skills (balance, tx, price, wallet, chat, send, trade, fund) via x402 micropayments on Base
-
12 GMGN skills — token info & security, contract due-diligence scoring, holder chip analysis, K-line market data & trending tokens & token/wallet search, chart pattern reading…
-
5 onchainos skills — token search, market data (prices/charts/trades), wallet balance, DEX swap aggregation, and transaction broadcasting across 20+ chains with 500+ liquidity…
-
allium-skills
On-chain blockchain data via Allium — prices, wallet balances, transactions, token info, and custom SQL analytics across 40+ chains.
-
nansen-skills
Nansen on-chain analytics — smart money DCA tracking, wallet labels, token flow intelligence, and whale activity on Solana.
Has a listing on Copilot CLI: github/awesome-copilot (5)
-
Safe BLE diagnostics, evidence workflows, and guarded automation for AI agents.
-
Mastercard Developers plugin to help build integrations with Mastercard APIs, including best practices and the Mastercard Developers MCP server.
-
Visualizes live session AI-credit usage as a Pac-Man board with pellets, ghosts, fruit milestones, and game-over limits.
-
Three-layer verification pipeline for AI output. Extracts claims, finds sources, and flags hallucination risks so humans can verify before acting.
-
Explore and query TimeBase streams, schemas, QQL, symbols, and server status via MCP.
Has a listing on Copilot CLI: github/copilot-plugins (5)
-
Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.
-
mcp-apps
Generate MCP App widgets for MCP tools. Produces self-contained HTML widgets using the MCP Apps protocol.
-
Advanced Security plugin for GitHub Copilot.
-
workiq
Query Microsoft 365 data with natural language — emails, meetings, documents, Teams messages, and more.
-
Build Power Apps Canvas Apps using the Canvas Authoring MCP server.
Has a listing on Cursor: cursor/plugins (5)
-
Check balances, get quotes, and preview or place trades.
-
Pull source-linked fundamentals, KPIs, filings, and prices.
-
Let Grok Bot reach MCP servers on your private Tailscale network: connect your own tailnet, or your team's company tailnets turned on by a team admin, with each member using their…
-
Review positions, balances, P&L, and draft trade instructions.
-
Read your net worth, accounts, holdings, spending, and budgets.
Has a listing on Docker MCP Catalog (5)
-
OpenZeppelin Stellar Contracts
Access to OpenZeppelin Stellar Contracts.
-
Access to OpenZeppelin Stylus Contracts.
-
OpenZeppelin Solidity Contracts
Access to OpenZeppelin Solidity Contracts.
-
A Model Context Protocol (MCP) server exposing Bitcoin blockchain data through the Maestro API platform. Provides tools to explore blocks, transactions, addresses, inscriptions…
-
The Official Model Context Protocol (MCP) server for Kagi Search & other tools.
Has a listing on Official MCP Registry (5)
-
base-onchain-tools dev.workers.dolerite.base-onchain-tools/base-onchain-tools
Base mainnet analysis: contract audits, transfer simulation, token pricing. Paid via x402.
-
Blockchain intelligence for tracing funds, screening addresses, and investigating on-chain activity.
-
Screen Base ERC-20 tokens, inspect wallets, simulate txs, price gas. $0.01 in USDC.
-
crypto-mcp tech.htsapp/crypto-mcp
Crypto rug/scam-risk scans + wallet snapshots (EVM + Solana), paid per call via x402.
-
Pay-per-call crypto intel via x402: honeypot/rug check, whale flows, unlocks, MEV, liquidation risk
Has a listing on PyPI (MCP servers) (5)
-
alchemy-nft com.mcparmory/alchemy-nft
Retrieve NFT metadata, ownership, and contract details across blockchains
-
Query Celo blockchain data: blocks, tokens, NFTs, contracts, governance and staking
-
orcalayer-mcp io.github.orcalayer/orcalayer-mcp
Polymarket smart-money analytics: whale leaderboard, wallet P&L, market consensus, live alerts
-
Blockchain Academics MCP server + `bca` CLI: crypto news, entity dossiers, market data, proprietary indicators, and academy explainers for AI agents
-
AI-assisted Solana trading bot with 331 MCP tools across Meme, Spot, Perpetuals, and Mirror modes.
Has a listing on npm registry (MCP servers) (5)
-
Read chain data on 200+ networks and Sui: transactions, logs, balances, objects, ABI-decoded.
-
Blockchain data, Deepstate and Standard Reserve markets, live chain queries, and API docs
-
Evidence-backed crypto due diligence with sources, freshness, and a runtime receipt on every call.
-
MCP server for OneSource blockchain data — named tools for balances, NFTs, transactions, events, live chain queries, with x402 (USDC on Base) and MPP (Tempo) pay-per-call payment…
-
Read-only Sui analytics: fund tracing, protocol-aware tx decoding, no API keys or wallet.
Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.
Want this mark on your plugin in our catalog?
Prove you maintain it with a file in its repository, a file on your domain or a DNS record, and you can show this mark on the card, with live banners for your site and README. How verification works
You also get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.