MCP Servers

X

XRechnung Validator

wenboteng

Validate XRechnung XML and ZUGFeRD / Factur-X PDFs with the free checkxrechnung.com API.

A

agent-toolkit

white-hat-lab

Pay-per-call developer utilities and npm supply-chain security tools for coding agents, over x402

A

Aether testnet wallet

whoyoujoshin

Testnet wallet for AI agents on Aether: pay, get paid and buy from paid APIs, with spending caps

T

Toss Invest

wi9ine

Access Toss Securities market, account, and opt-in trading APIs through MCP

W

Wicked MCP

WickedAPI

Whole Wicked suite for agents: market data, SEC filings, wallet checks, risk, identity, memory

M

matchwire.win — Mapped Prediction Markets (Kalshi, Polymarket, Predict.fun)

matchwire.win

One row per game, matched across Kalshi, Polymarket US/Intl and Predict.fun. Mapping only

A

agent-bank

WirterNow

Financial infrastructure for AI agents: wallets, USDC transfers, lending, jobs on Polygon

M

Mythic Index

wizkid17

MTG card prices, deck analysis, and investment intelligence: 19 tools over the Mythic Index API

T

TrenchFu — Universal Intelligence Marketplace

WizzyDev

Intelligence marketplace on Solana: 86 tools, 168+ endpoints, per-call USDC

W

Wokelo MCP Server

Wokelo-AI

Company and market intelligence, news, enrichment, and agentic workflows for dealmakers

W

worldpay-mcp

simonwfarrow

No description yet

E

EU e-invoicing and business checks (EN 16931, Peppol, VAT, sanctions)

wsystemdev

EN 16931/XRechnung e-invoice validate+create, Peppol routing, EU VAT/EORI, sanctions, KYB. Free tier

S

Smart Money Data (SEC, 13F, Congress, Insider Trades)

wyeming95-rgb

SEC filings, 13F, Form 4 insider trades, Congress trades, short interest and PDUFA dates via Apify

R

robotbase-mcp

wygogogo19

Agent MCP: 65 tools — 5-chain verification, risk, prediction & crypto trends, 17 web tools.

R

robotbase-web3

wygogogo19

Agent MCP: 65 tools — 5-chain verification, risk, prediction & crypto trends, 17 web tools.

A

awc-agent-commons

wynnpay102-sys

Discover funded testnet tasks with deterministic on-chain acceptance and AWC utility rewards

A

Alternative Payments

WYRE-AI

MCP server for Alternative Payments: customers, invoices, payment requests, payouts, webhooks

C

Cork

WYRE-AI

MCP server for Cork's cyber-insurance API for MSPs

S

Sherweb

WYRE-AI

MCP server for Sherweb: billing, subscriptions, customers, and product catalog

A

Alternative Payments

wyre-technology

MCP server for Alternative Payments: customers, invoices, payment requests, payouts, webhooks

S

Sherweb

wyre-technology

MCP server for Sherweb: billing, subscriptions, customers, and product catalog

X

X402 Crypto Market Structure

tunedforai

Know what the market is actually doing — not just price. Live orderflow from 20 exchanges across Bitcoin, Ethereum, Solana, XRP, BNB, Dogecoin, Avalanche, Cardano, Chainlink, and 15 more tokens. Directional regime detection, 7 years of OHLCV with orderflow baked in, on-chain addr

X

X402 Payment Gated Http

merkleworks

Use:

H

HPP x402 MCP Bridge

hpp-io

Gasless x402 payments for MCP agents on HPP—discover and pay for services per call, within a spend cap

X

X402 Multi Chain Blockchain Gateway

trevorflipper

Pay-per-call NEAR, Solana & Base blockchain data API via x402 USDC micropayments. 24 endpoints, no API keys.

O

osk Calculators — precision calculators for AI agents (x402)

PARK-JUHWAN

Precision calculators for AI agents (medical, finance, engineering, tax, physics). Pay-per-call in USDC via x402 on Base. No API keys.

X

X402 Trust Layer

mimranchohan

x402 Trust Layer is the trust, security & settlement control plane for autonomous agent payments. It exposes 13 MCP tools that an agent calls around every x402 (HTTP 402) payment.

X

XDC GOAT MCP Server

chainaimlabs

xdc-goat-mcp-server

X

Xero

Xero

Access your Xero financials from any conversation

X

Xero MCP Server

andyciggy

No description yet

X

Xero MCP Server by CData

CDataSoftware

This project builds a read-only MCP server. For full read, write, update, delete, and action capabilities and a simplified setup, check out our free CData MCP Server for Xero (beta): https://www.cdata.com/download/download.aspx?sku=DXZK-V&type=beta.

X

xete

xetenet

End-to-end-encrypted, sovereign inbox for AI agents. The server only ever sees ciphertext

X

XGR.Network MCP

xgr-network

XGR.Network MCP is a connector for XGRChain and the XDaLa on-chain process engine, enabling AI agents to access chain data, inspect process activity, and prepare secure workflow actions for user-controlled wallet signing

X

xinghuo-mcp-server MCP Server

caict-4iot-dev

A Model Context Protocol server that provides access to the Xinghuo BIF Blockchain Test Network.

R

ReceiptRail

xka0085-byte

Read-only on-chain receipt check for x402 payments. Confirm settlement before trusting a tx

O

Orbuc

xOrbuc

On-chain stablecoin market cap and Bitcoin institutional holdings data

E

EveryCalc

xOyabunx

8 free finance calculators as MCP tools: mortgage, refinance, loans, interest, salary, tips

X

xpay Finance

xpaysh

253 finance tools. Financial Modeling Prep, Alpha Vantage, AkShare, Polymarket, Dome.

G

GXEON Agent Marketplace

xpex-systems-ai

GXEON services, prepaid packs from R$0.99, purchase planning, and agent buyer guidance

X

xrpl-mcp

tedlikeskix

An XRP Ledger Model Context Protocol (MCP) server enables secure, controlled interactions between LLMs and the XRP Ledger, facilitating tasks such as transaction submissions and ledger queries

X

Xrpl Utilities

XRPL-Utilities

MCP server for the XRPL-Utilities portfolio. 11 tools across four services:

P

pattern-vista

xsf0221

End-of-day US equity data: MA200 deviation rankings, market breadth, chart-pattern win rates

B

Bachai Xueqiu Mcp

BACH-AI-Tools

No description yet

G

GPT55 Model Gateway

gpt55.558686.xyz

Remote MCP gateway for GPT-5.6 Luna, Soul, Terra, and x402-paid agent tools with no API key

A

agentzon

agentzon.xyz

The everything store for AI agents: a skill marketplace on Solana where agents hire each other

A

APEX Faucet

apexfaucet.xyz

Free X1 and Arc faucets plus 160+ agent tools: token exit checks, launches, yield, web pages

M

mgo

chain-ops.xyz

Compare live gas across up to 9 EVM chains and get the cheapest one. x402 pay-per-call on Base

C

chainverdict

chainverdict.xyz

Pay-per-call x402 checks before an agent moves money: token safety, wallet risk, identifiers

B

BTCPay Server MCP

draket.xyz

21 tools for AI agents to manage BTCPay Server: invoices, payments, stores, webhooks, Lightning

E

EveryCalc

everycalc.xyz

69 free finance, military, school and everyday calculators as MCP tools.

I

iposignal

iposignal.xyz

IPO deal terms, SEC filings, AI research and sentiment, plus live valuation metrics for US stocks.

S

strategy-lab

kellyruns.xyz

Stress-test lowcap, perp and LP strategies. Returns the full distribution and a reproduction seed.

R

RailFi Payout Plans

railfi.xyz

Free, non-custodial tools to validate bounded USDC/USDT payout plans and reconcile payouts.

S

SBOR

sbor.xyz

Check a lending rate before your agent borrows. Bitcoin-backed dollar rates from contracts. No key

S

Sentio Connect

sentio.xyz

Track public wallets: token balances, prices, portfolio value, DeFi positions and holding history

L

leverage

spiralstake.xyz

Leveraged-yield router on Morpho. List strategies, simulate and build UNSIGNED transactions

T

Toll — coin and product checks on Robinhood Chain, Solana, BSC

t0ll.xyz

Is there a real product behind a coin? LARP checks plus bundles, snipers and dev records

T

Tereno on Base

tereno.xyz

Check a Base contract, transaction or web page before you act. Free pricing, paid per call in USDC

T

TWZRD Agent Intelligence

intel.twzrd.xyz

Pre-spend trust for AI agents that buy: check x402 services and product listings before paying.

N

NuMetric

numetric-mcp.virifi.xyz

Read-only NuMetric.work accounting & ERP data: statements, KPIs, reports, invoices, documents.