Crypto and Web3 MCP servers

NythosX Agent Tools

tools.nythosx.com

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

AEO Inspector

aeoinspector.com

AEO scan, 16-engine AI report and one-domain security + AEO report with fixes (x402 USDC).

NythosX Market Data

market.nythosx.com

Crypto/stock trade setups, signal bias, levels, regime, odds. Free track record. Pay per call, x402.

XRPL.to Token Analytics

@xrplto

XRP Ledger tokens, AMM pools, NFTs, accounts and transactions: prices, holders, trades and history

MarktBit Market Intelligence

devproflow.com

Live crypto + IDX stock market intelligence for AI agents — 19 tools, no API key.

Alertio

alertio.io

Real-time DeFi risk data: health factors, liquidations, stablecoin pegs, utilization. No API key.

arcgate

arcgate.dev

Arc gateway for agents: token checks, swaps, the ERC-8004 directory, agent boxes, accounts. x402

Diamond Bitcoin Intelligence

diamond.tail1b5f86.ts.net

Free Bitcoin sanctions screen; paid address risk checks, market pulse, whale reports and alerts.

Lumière PayCheck

@Book0fEli

Check any x402 endpoint before your AI agent pays it: trust grade, verdict, and hijack checks.

Dragons Eye Ransomware Claims

api.ransomware-tracker.com

Ransomware claim lookups, IOC and CVE intel, group intel, bulk checks and watch alerts (x402 USDC).

Real Crypto Signals: crypto scam warning lists

realcryptosignals.com

Check sites and firms against regulator scam warning lists: SEC, CFTC, AMF, FSMA, BaFin, AFM, CBI

ToolGrade

toolgrade.mike-tusa.workers.dev

Grade MCP tool definitions for agent-readiness: score, A-F grade, fixes, est. token cost.

Foundry: prepaid AI compute in USDF

usdf.fi

Prepaid AI compute in USDF: models, quotes and chat with a receipt; pay per call (x402) or by key

Roundhouse

roundhouseai.io

Read-only analytics on x402 agent payments and ERC-8004 agent identity, with SQL.

GadgetHumans API Hub

gadgethumans.com

49 MCP tools free (rate-limited) + x402 pay-per-call on Base. Flagship: Token Verdict, $0.02.

MoltNode by Chord

@tuantqse90

Read 31 blockchains over JSON-RPC and swap via Chord: best route, unsigned tx, simulation. No key.

Chord

@getchordlabs

Swap quotes + unsigned txs on 8 EVM chains, plus Solana data: boards, candles, wallet PnL. No key.

Mail Security Tools

api.mailsecuritytools.com

DMARC/SPF/DKIM/MX checks, email score, 100-domain bulk score, webhook watch alerts (x402 USDC).

Peerlytics Data

peerlytics.xyz

Peer protocol seller-rate and liquidity history on Base. Paid aggregate reads via x402 USDC.

BlockReq

blockreq.com

Read-only BlockReq docs, network catalog, and JSON-RPC calls across EVM chains

gtinfetch – Agentic Commerce

gtinfetch.ai

gtinfetch — the GTIN resolver for AI agents. Any barcode, one call. 84M GTINs. x402 at the door.

Golden Kog token risk analyst by Kognai

kognai.ai

Risk and structure facts on one Solana or Base token, never a trading signal. Paid per call by x402.

Agent Anthill

agentanthill.com

Drop-and-claim storage, relay codes and fair-exchange chambers for AI agents. Pay per use in USDC.

memepad

memepad.lol

Read-only data for memepad.lol, a Solana meme-token launchpad: coins, candles, trades, holders.

Swapper - XMR to USDC swaps

xmrtousdc.xyz

Swap Monero (XMR) <-> native USDC on Arbitrum One. No account or API key required. For AI agents.

SORNKan Publish

sornkan.com

Host a static website from a zip: $1 USDC/month via x402 on Base, or card/PromptPay link.

HeyAnon MCP

@RealWagmi

HeyAnon on-chain agent: wallets, portfolios, DeFi and CEX actions, transfers, Gemma research.

Vérif Entreprise FR

api-production-24833.up.railway.app

French company KYB (SIREN): status, insolvency, VAT, BODACC monitoring alerts. Free preview; x402.

PulseWatch Vendor Status

api.pulsewatch.us

Is this vendor down? Pay-per-call status for 1,700+ SaaS/cloud vendors from PulseWatch (x402 USDC).

Gas Fee Predictor

@higherbeing

Live Ethereum and L2 gas fees: current gas, cheapest L2, forecast, ETH price, cost estimates.

Eudigo – EUDI Wallet index

eudigo.eu

Independent EUDI Wallet index: status in all 27 EU states, deadlines, registers, standards, news.

BlazePhoenix on-chain DEX aggregator

blazephoenix.xyz

On-chain DEX aggregator: quotes and verified swap calldata computed on your own RPC. No API key.

UNRENT

unrent.xyz

Reclaim overpaid rent from Solana token accounts (SIMD-0437). Non-custodial, no API key.

Liqwall market data

liqwall.com

Crypto liquidation maps, liquidations, funding, open interest: 4 tools without a key, 6 with one.

1gateway

@code0xff

Pay-per-call tools for agents via x402 (USDC on Base): Korean data, doc-to-Markdown, web utilities.

VaultRubric

vaultrubric.com

Sourced, scored comparisons of crypto exchanges, wallets, savings accounts and brokerages.

AsOf Demo

asof.xyz

No-sign-up demo: recorded historical crypto wallet holdings, prices and CSV exports. Fixed examples.

BridgeNode MCP

@bridgenode-ai

BridgeNode — x402 pay-per-request AI inference. OpenAI-compatible API + MCP, Solana USDC, gas-free.

WalletProfit

walletprofit.app

Analyse crypto wallets (EVM, Solana, Bitcoin) and compare DeFi lending, borrowing and pool rates.

DeFade — Multi-Chain Memecoin Analyzer

defade.org

Rug pull risk and on-chain forensics for tokens on Solana and six EVM chains.

Paxie.Matrix Data API

api.paxie.fun

Memecoin intel for agents: Robinhood Chain + Solana bursts, rug checks, call verdicts. Pay via x402.

DegenHedge: Kalshi Bitcoin 15-minute data

degenhedge.com

Read-only Kalshi BTC 15-minute data: live window, graded alert record, fee calculator.

Peerlytics

peerlytics.xyz

Public Peer protocol activity and settlement receipts on Base. Read-only; no key or wallet.

Private AI Media Generation

livepairai.com

Paid AI image/video generation for agents — x402 USDC or API key, no account needed.

Agent Tool Finder

subpay.ai

Free search over ~50k agent tools: paid x402 APIs and MCP servers. Price, networks, how to call.

Crovia — verifiable silence (TACET) and Crovia Seal

croviatrust.com

Signed, Bitcoin-anchored observations of AI training-data disclosure; verifies silence proofs, seals

Agents on Leave

agentsonleave.com

Free vacation worlds for AI agents: wander, meet other agents, and buy small treats over x402.

Stablecoin Scanner

achivx.com

Stablecoin risk for agents: freezes, OFAC, exposure, allowances, transfers, graph. 7 chains.

Cryptowisser News

cryptowisser.com

Latest crypto news, stories and articles from Cryptowisser, with news cards linking to full stories.

Moonlauncher

moonlauncher.app

Prepare pump.fun token launches from your AI agent. You review and sign each one in your own wallet.

Subpay Document Reader

subpay.ai

Reads AIA G702/G703 pay applications and change orders from PDF to JSON. $0.04/page via x402.

PayRam

payram.com

Install, configure, operate and integrate self-hosted PayRam crypto payment gateways.

DMCA.com Cases

dmca.com

DMCA.com cases. Your own token via Authorization: Bearer. No function key, no shared token.

LoomDesk

loomdesk.trade

Real Uniswap liquidity on Robinhood Chain for your wallet, plus a play-money arena for AI agents.

X402 Git

x402git.com

Buy private git repos and agent skills with USDC over x402. Read the manifest free, then pay.

Obento

obentoapp.com

Live USDC rates on Base, any address's Obento position, and deposits and withdrawals to sign.

Genesis402 by UnyKorn (x402 pay-per-call)

@FTHTrading

Counterparty checks, sanctions screening, company lookup and 360+ pay-per-call APIs over x402.

Eagle Virtual USDT & USDC Blacklist Tracker

eaglevirtual.com

USDT & USDC blacklist, freeze and seizure records for any wallet. Dated, cited, no risk scores.

Datoka Agent

datoka-agent.bhazarstudio.workers.dev

Signed agent execution declarations. Free verification; issuance 0.002 USDC via x402 on Base.

Onvexia: Crypto Fundamentals, Sentiment & Onchain Tracking

onvexia.com

Crypto fundamentals, sentiment, whale tracking and influencer call accuracy for traders and agents.