-
An API that provides breaking changes and changelogs for npm and PyPI packages to assist with dependency upgrades.
developer-tools
-
This API provides data on stablecoin rails, payment corridors, and provider information for on-ramping and off-ramping assets.
finance-and-crypto
-
This API provides ransomware threat intelligence, including domain and IP checks, CVE information, and ransomware group profiles.
data-and-analytics
-
This API provides markdown conversion, JSON extraction, and research briefs for AI agents using USDC on the Base network.
ai-and-agents
-
An API providing Japanese business days, holidays, financial calendar dates, and traditional calendar information.
finance-and-crypto
-
This API provides endpoints to access Hyperliquid prediction market outcomes and settled results.
finance-and-crypto
-
An API that provides public holiday information and business day calculations by country and subdivision.
developer-tools
-
A service providing web content extraction and research capabilities for AI agents.
ai-and-agents
-
An API for retrieving Hyperliquid account information including fees, trade fills, open orders, portfolio value, and staking status.
finance-and-crypto
-
An API that fetches public web pages to return clean markdown or structured machine-readable data.
ai-and-agents
-
settled.toolstool
Settled provides a service to verify x402 endpoints by checking their response, pricing, and delivery status before an AI agent makes a payment.
ai-and-agents
-
An API for searching hotels and retrieving property details, photos, and reviews.
commerce
-
A unified API hub providing 226 MCP tools and 122 REST APIs for AI agents and developers.
ai-and-agents
-
An AI agent providing API services for Solidity smart contract auditing, crypto news sentiment analysis, and text-to-JSON extraction.
ai-and-agents
-
This service provides cryptocurrency market data, including prices and funding rates, via a pay-per-call API for AI agents.
finance-and-crypto
-
This page provides a JSON specification for the GenTech x402 Gateway API, including available endpoints and subscription plans.
developer-tools
-
An API gateway providing various AI services such as prompt injection firewalls and smart contract auditing via Base USDC payments.
ai-and-agents
-
An API providing real-time on-chain intelligence and DeFi signals across multiple blockchain networks.
finance-and-crypto
-
An API providing historical financial data, stock prices, and news sentiment for Korean and US markets via micropayments.
finance-and-crypto
-
An API providing driving distance and duration data, including matrix calculations and MCP tool support.
data-and-analytics
-
An API providing clinical calculators and medical code lookups for AI agents.
health
-
This API provides trading signals and market data for dYdX, including funding rates, market details, and whale activity.
finance-and-crypto
-
A pay-per-call data API providing financial, macro, and crypto market signals to AI agents via x402 payments.
finance-and-crypto
-
This service provides an API and MCP tool to simulate token trades on the Base network to calculate buy and sell taxes and round-trip losses.
finance-and-crypto
-
This service provides paid HTTP endpoints for AI agents to access blockchain data, token verdicts, and DAO proposal information.
finance-and-crypto
-
An API providing New Zealand-specific data services including public holidays, working days, and validation for IRD, NZBN, phone numbers, and bank accounts.
data-and-analytics
-
This site provides an API for various financial calculations including position sizing, dividend math, and portfolio risk.
finance-and-crypto
-
This service provides tamper-evident, hash-chained logs for AI agent actions to enable verifiable auditing.
ai-and-agents
-
Distill provides an API for AI agents to retrieve pre-computed factual answers, such as sales tax rates, via USDC payments.
ai-and-agents
-
An API that allows AI agents to verify seller trust and perform pre-payment checks using x402 on the XRPL, Base, or Stellar networks.
ai-and-agents
-
apkcube.comother
A website for downloading Android APK, XAPK, and OBB files for various applications and games.
other
-
turboshop.aiecommerce
A marketplace for AI agents to purchase tools, identity, memory, and data feeds using USDC on the Base network.
ai-and-agents
-
A pay-per-call API providing network engineering calculations such as subnetting, CIDR aggregation, and bandwidth analysis.
developer-tools
-
DYOE provides website and business verification services through automated audits for humans and a pay-per-call API for AI agents.
ai-and-agents
-
An API providing SEC EDGAR company data and EVM/DeFi mathematical functions for agents with payment via USDC on Base.
finance-and-crypto
-
speedbot.devsaas
An AI agent network and marketplace for agents to find work, collaborate, and exchange tools, data, and APIs.
ai-and-agents
-
maraventanoindex.comother
The site provides market research and datasets regarding the x402 agent economy from a merchant perspective.
ai-and-agents
-
DropEngine provides paid Model Context Protocol (MCP) services for AI agents, including security screening, web research, and data extraction.
ai-and-agents
-
This API provides trailing and semi-live descriptive statistics on PJM RTO electricity prices and load.
data-and-analytics
-
An API that provides headless Chrome rendering to capture web page screenshots and PDFs for visual inspection or vision models.
developer-tools
-
This API provides crypto derivatives data including funding rates, open interest, and liquidations across multiple exchanges.
finance-and-crypto
-
This service provides an API and web interface to verify French company information such as SIREN, VAT status, and legal proceedings.
data-and-analytics
-
gl1tchbased.xyztool
A crypto risk intelligence platform providing a multi-chain token scanner, an agent trust layer, and developer APIs.
finance-and-crypto
-
A marketplace providing API access to LLM chat, ecosystem statistics, and routing services.
ai-and-agents
-
rengi.devapi
This service offers pay-per-call API tools for AI agents to perform game development tasks such as level design and background removal.
ai-and-agents
-
An API providing US public-record intelligence, including SEC filings and FDA enforcement actions.
data-and-analytics
-
Provides pay-per-call web, AI, and Base on-chain APIs for AI agents via the x402 protocol.
ai-and-agents
-
The site offers automated security screening and reports for smart contracts on the Base network.
finance-and-crypto
-
Limitguard provides a lead validation service that checks company information against business registers, VAT, and sanctions lists via an API.
data-and-analytics
-
A JSON manifest providing technical details and endpoints for the Data/Agent Foundry API products.
developer-tools
-
AurelianFlo provides a pay-per-call API for OFAC wallet screening, crypto sanctions checks, and compliance workflow automation.
finance-and-crypto
-
A test endpoint for the x402 service providing several GET endpoints on the Base network.
developer-tools
-
A web search API for AI agents that provides search, research, and reading capabilities with payment via USDC.
ai-and-agents
-
A multichain RPC service providing blockchain data endpoints for networks including Base, Polygon, Arbitrum, Optimism, and Ethereum.
finance-and-crypto
-
A financial data API providing access to routes for treasury yields, cryptocurrency news, and commodity news.
finance-and-crypto
-
An API providing translated Russian and global market news and financial data via paid calls.
finance-and-crypto
-
An API providing commodity data from primary sources such as EIA, FRED, and CFTC for AI agents.
data-and-analytics
-
An API providing market signal data, including candlestick forecasts and prediction-market odds, in JSON format for AI agents and traders.
finance-and-crypto
-
how.isapi
A service providing domain intelligence and site status data through pay-per-call API endpoints for both humans and AI agents.
developer-tools
-
An HTTP API for AI agents to retrieve blockchain data from Base, Arbitrum, Ethereum, and Optimism using the x402 pay-per-call protocol.
developer-tools
-
An API service providing endpoints for web scraping and UK commercial property data extraction and enrichment.
developer-tools
-
A pay-per-call API for autonomous agents providing crypto market data, payment risk assessments, and seller reputation scores via signed receipts.
ai-and-agents
-
An experimental API service offering pay-per-use DNS and website inspection endpoints for AI agents using the x402 payment protocol.
developer-tools
-
A diagnostic tool that checks x402 payment endpoints for errors and provides fix code or delivery verification for AI agents.
developer-tools
-
A data oracle service offering paid API endpoints for weather, time, and financial data on the Base network.
developer-tools
-
A pay-per-call API service that provides security verdicts for AI agent transactions and token approvals across multiple blockchain networks.
developer-tools
-
FilingDelta provides machine-readable JSON data cards summarizing changes in SEC filings, central bank rate decisions, and macroeconomic indicators for AI agents.
finance-and-crypto
-
The Qonoro Intelligence API provides endpoints for business intelligence, lead enrichment, and company data signals.
ai-and-agents
-
This site tracks and ranks ERC-8004 AI agents on the Base blockchain by analyzing their actual payment activity, wallet funding, and transaction history.
ai-and-agents
-
A collection of pay-per-call data utility APIs for developers and AI agents, including validators for financial IDs, barcode checks, timezone conversions, and geographic calculations.
developer-tools
-
A pay-per-call data provider offering keyword metrics, SERP results, and competitor discovery for AI agents via USDC payments using the x402 protocol.
marketing-and-seo
-
A payment protocol that enables AI agents to pay for API resources using USDC over HTTP 402 without custodial intermediaries.
ai-and-agents
-
An API for content extraction, metadata parsing, and web processing that accepts pay-per-call USDC payments via the x402 protocol.
developer-tools
-
stormap.aitool
Stormap provides brainstorming maps, site visibility checks for AI bots, and tools for AI agents to interact with web content.
ai-and-agents
-
A pay-per-call weather API for AI agents offering current conditions, forecasts, and air quality data using USDC on the Base network without requiring an API key.
developer-tools
-
A web content extraction service that converts URLs into clean markdown and metadata for use by autonomous agents via pay-per-request transactions.
developer-tools
-
An API for verification services supporting the Base network and providing specific endpoints for AI agents.
developer-tools
-
An API providing pay-per-call African and global data including holiday calendars, business day verification, exchange rates, and domain security lookups for AI agents.
data-and-analytics
-
This site offers several paid API endpoints for AI agents to perform web content extraction, citation verification, and market analysis of other paid agent services.
developer-tools
-
An API providing social signals and on-chain analytics for trading bots on the Robinhood Chain, featuring caller track records and token risk assessments.
finance-and-crypto
-
A reputation and verification platform for AI agents on the Base network that tracks onchain performance, escrow jobs, and fraudulent activity flags.
ai-and-agents
-
A machine-readable gateway providing pay-per-call services for AI agents including security audits, discovery optimization, and payment readiness testing.
ai-and-agents
-
This site provides paid API endpoints for onchain forensics including sanctions exposure, exploit detection, and address poisoning monitoring with payments settled in USDC on Base.
finance-and-crypto
-
An API providing live cryptocurrency market data including prices, derivatives, liquidations, news, and wallet reports specifically designed for AI agents using the x402 payment protocol.
finance-and-crypto
-
This API provides Great Britain postcode intelligence including ONS Census demographics, deprivation indices, property sales data, and broadband connectivity metrics.
data-and-analytics
-
An API providing deterministic text processing primitives for AI agents with a payment model based on blockchain-verified microtransactions.
developer-tools
-
A collection of pay-per-call endpoints for Base blockchain data, Hebrew calendar conversions, and financial arithmetic paid via the x402 protocol.
developer-tools
-
An API hub on the Base Mainnet offering pay-per-call services for financial microstructure analysis, web data extraction, blockchain audits, and company research.
developer-tools
-
NovaPath provides structured teaching resources and research APIs for AI agents, offering pay-per-request services for web reading, evidence retrieval, and document comparison on the Base network.
ai-and-agents
-
gankdat.comapi
A data platform providing UK and EU public records, including procurement tenders, planning applications, and compliance lists, via a standardized JSON API and MCP server.
data-and-analytics
-
This site provides paid API endpoints and Model Context Protocol tools for auditing and repairing security exposures in WordPress and other content management systems.
developer-tools
-
This API provides realized yields for tokenized treasury funds and USDC settlement cost measurements across different blockchain networks.
finance-and-crypto
-
A collection of financial market data endpoints providing stock aggregates, technical indicators, futures contract details, and US inflation macro data via JSON.
finance-and-crypto
-
An API providing quantitative derivatives pricing, analytic Greeks, and volatility surface calculations for financial instruments using micropayment settlement.
finance-and-crypto
-
intel.twzrd.xyztool
A platform providing counterparty reputation data for autonomous agents operating on the Solana and Base blockchain networks.
ai-and-agents
-
This site provides paid API endpoints for Hyperliquid market data including order books, candles, funding rates, and perpetual asset metadata.
finance-and-crypto
-
An API providing data on affordable healthcare providers, including cash-pay doctors, direct primary care clinics, and pricing statistics for uninsured patients.
health
-
A security API for EVM addresses on the Base network that provides risk verdicts and address poisoning checks using the x402 payment protocol.
finance-and-crypto
-
xhagents.xyzapi
A directory and provider of x402-compliant endpoints on the Base and Solana blockchains designed for autonomous agents to pay per call in USDC for market data and on-chain execution.
ai-and-agents
-
A pay-per-call API service providing 48 data tools and briefs for AI agents via x402 payments on Base.
developer-tools
Verified sites — page 13
2537 sites that came back “listed” from an agent-discoverability check. The check is what is paid for; this listing is a free bonus — it is earned by passing, never bought, and a site that fails pays the same and is not listed. Categories and descriptions are ours. Each badge carries its own check date — a listing is dated, not permanent.