Score colors: 90–100 Excellent · 70–89 Good · 50–69 Needs work · 0–49 Needs urgent work. The score counts what AI crawlers run into when they read the site without JavaScript. Every listed site is re-checked for free every 30 days; a paid check re-scores it within the hour.
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A pay-per-call API providing parsed FAA airport status, disruptions, and TFR data in JSON and GeoJSON formats for developers and AI agents.
developer-tools
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This page provides API endpoints and version information for the EU Compliance Desk service.
developer-tools
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This API provides on-chain security and data analysis tools for crypto trading agents, including calldata auditing and liquidity checks.
finance-and-crypto
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An API for AI agents providing EU VAT validation, French company KYB data, IBAN validation, and counterparty checks via pay-per-call USDC payments.
finance-and-crypto
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The site offers an API toolkit for Spain with endpoints for electricity data, business days, holidays, and tax or IBAN validation.
developer-tools
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An API service providing 93 REST endpoints for AI agents, covering categories such as weather, news, finance, and product data using micropayments.
ai-and-agents
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An API service that provides email deliverability signals for a domain.
data-and-analytics
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A catalog of paid API endpoints providing cryptocurrency market data such as prices, funding rates, and open interest.
finance-and-crypto
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A DNS lookup service that accepts payments in USDC on the Base network via an API.
developer-tools
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A paid API service that converts web pages, PDFs, and feeds into structured JSON for AI agents using x402 payments.
developer-tools
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A paid API service offering data endpoints for AI agents, including task market rankings, token risk checks, and Bitcoin mining statistics.
ai-and-agents
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A pay-per-call API that provides dependency trust reports, vulnerability data, and typosquat checks for npm, PyPI, crates.io, Go, and Maven packages.
developer-tools
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Provides a structured building information dataset for Shanghai Caojiadu, accessible via paid API endpoints.
data-and-analytics
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An API that cleans and validates CSV files by mapping headers, trimming whitespace, and removing duplicate rows.
developer-tools
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An API that converts public web pages from various sources into structured data rows.
data-and-analytics
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An API that performs static checks on n8n workflow exports and returns a JSON report.
developer-tools
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A B2B lead feed providing normalized data on businesses that require new commercial insurance based on public triggers.
data-and-analytics
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This API provides deduplicated cryptocurrency news from 37 public sources, including major outlets and blockchain blogs.
finance-and-crypto
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An API that provides scores and analysis for paid opportunities to help autonomous operators decide whether to pursue them.
ai-and-agents
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An API providing US company data, profiles, and XBRL financials sourced from SEC EDGAR.
finance-and-crypto
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The site provides automated auditing and diagnostic services for OpenAPI contracts, AI agent security, and CI failure logs.
developer-tools
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An API providing tools for Colombian company data validation and search.
ai-and-agents
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An API that provides structured JSON snapshots of public job listings from Greenhouse, Lever, and Ashby boards.
developer-tools
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An API that converts CSV to JSON and JSON to CSV using micropayments on the Base network.
developer-tools
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An API providing various Chinese market, weather, and news data using the x402 protocol with pay-per-request pricing in USDC.
data-and-analytics
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This service provides pay-per-request web page extraction tools for AI agents, including markdown conversion and metadata retrieval.
ai-and-agents
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A pay-per-call API service providing web research and verification tools for AI agents, with payments made in USDC.
ai-and-agents
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A machine-payable API that monitors release notes and changelogs for various software vendors to detect breaking changes.
developer-tools
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An API that provides fact-checking against sources and structured data extraction from unstructured text for AI agents.
ai-and-agents
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This service provides deterministic JSON hashing and EIP-712 signed attestations to allow AI agents to verify data and reduce redundant LLM calls.
ai-and-agents
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A pay-per-call crypto data API providing wallet reports, contract risk scans, and gas snapshots using x402 payments in USDC on Base.
developer-tools
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An API providing Polymarket prediction market intelligence for AI agents via pay-per-call USDC transactions.
ai-and-agents
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An API that audits GitHub issues to determine their viability for bounty claims by automated agents.
ai-and-agents
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A pay-per-call API that checks the claimability of open-source GitHub bounties using automated scans and x402 payments.
developer-tools
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An API service that matches companies with French public tenders using BOAMP data, offering explainable scoring and bid analysis via x402 payments.
data-and-analytics
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The site offers pay-per-call API endpoints for checking Base wallet balances, converting web pages to Markdown, and verifying USDC payment receipts.
ai-and-agents
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An API service that verifies literal quotes against public source pages for software agents, providing evidence with source hashes and offsets for a small fee.
developer-tools
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The site provides read-only API endpoints for querying data on the Base mainnet, including token prices, contract audits, and transaction simulations.
finance-and-crypto
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A paid API service providing preflight checks, allowance verification, and transaction explanations for the Base blockchain network.
developer-tools
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A pay-per-request API providing Base ERC-20 token market data, contract metadata, and security signals from DEX Screener and GoPlus.
finance-and-crypto
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A paid API endpoint that returns wallet balances for major tokens across seven EVM chains, Solana, and Tron for a fee of 0.002 USDC per call.
developer-tools
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A platform providing AI-generated art, prompts, stories, and guides, along with an API for developers to access various AI services.
ai-and-agents
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An API providing pay-per-call access to arXiv scholarly metadata, including full-text search and paper details.
data-and-analytics
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An API that provides Australian stamp duty, income tax, and investment property analysis data.
finance-and-crypto
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An API that provides structured company and domain intelligence for AI agents using pay-per-call x402 payment terms.
ai-and-agents
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This service provides pay-per-call APIs for AI agents that use USDC on the Base network for programmatic payments.
ai-and-agents
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A Web Data Toolkit API providing micro-paid endpoints for web extraction, DNS lookup, crypto data, weather alerts, and other utility tools.
developer-tools
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An API for machine-readable website audits that scores URLs on SEO, security, and AI agent readiness with on-chain payment integration.
developer-tools
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The page provides raw JSON metadata for the Headless Merchant API, including version details, endpoints, and pricing info.
commerce
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This API provides endpoints for web data refining, link verification, structured JSON extraction, and LLM routing.
ai-and-agents
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This API provides DeFi token risk analysis, including indicators and smart contract flags, across the Base and Arbitrum networks.
finance-and-crypto
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This API provides various calculators for Brazilian labor, tax, and income tax regulations.
finance-and-crypto
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This API provides Polymarket odds and market movement data.
finance-and-crypto
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api.gloom.shapi
This API endpoint provides access to Gloom Datasets and a REST API, including links to documentation, OpenAPI specifications, and various data samples.
data-and-analytics
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A pay-per-call API providing Cook County property records, including parcel details, sales history, and building permits.
data-and-analytics
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The site offers paid APIs for space data and on-chain wallet intelligence via a pay-per-request model.
developer-tools
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An API that provides accuracy, compliance, and engagement scores for AI agent outputs.
ai-and-agents
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An API providing land data for any point in Japan, including zoning, hazard zones, land prices, and terrain, sourced from government open data.
data-and-analytics
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A pay-per-call API service offering twelve endpoints for AI agents, including token risk checks, web scraping, and price data, settled via USDC on Base or Solana.
developer-tools
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A paid API providing access to Harris County property records, tax data, and Texas HOA certificates via x402 protocol.
data-and-analytics
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An API and MCP server for decoding blockchain transactions on Base, Ethereum, and Arbitrum with risk checks.
finance-and-crypto
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A shop providing API endpoints for AI agents, including market intelligence, risk assessment tools, and Bitcoin mining data.
ai-and-agents
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An API gateway providing endpoints for drug intelligence, cryptocurrency risk analysis, and web data extraction.
developer-tools
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A pay-per-call API providing utility endpoints for email validation, DNS lookups, and Swedish identifier validation for AI agents.
ai-and-agents
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The site provides API endpoints that offer storefront intelligence, such as auditing, schema fixing, and data extraction, for AI agents.
ai-and-agents
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A paid API endpoint for querying on-chain data from the Base network, including wallet balances, token details, and recent transfer activity.
finance-and-crypto
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An autonomous agent utility API providing pay-per-call HTTP endpoints settled in USDC on Base via the x402 protocol.
ai-and-agents
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A deterministic website audit API offering paid JSON and HTML reports via x402 USDC payments, with free preview scans and MCP server support.
developer-tools
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This site provides pay-per-call API utilities for AI agents including URL to markdown conversion, blockchain data retrieval, and web content extraction using the x402 payment protocol.
ai-and-agents
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An API providing agent identity, wallet reputation, ERC-8004 feedback, and domain verification paid per call via x402.
ai-and-agents
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A micro-paid API service offering utilities for AI agents, including random number generation, markdown cleaning, and agent-readiness scoring, payable via USDC.
ai-and-agents
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A browser automation API for AI agents that charges per action via cryptocurrency on multiple blockchains.
ai-and-agents
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This site provides a pay-per-request API for auditing x402 sellers, verifying web links, checking quotes against source pages, and validating USDC transactions on the Base network.
ai-and-agents
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A JSON endpoint describing the After 6 Labo x402 mainnet service, including its facilitator, authentication method, network, and paid endpoints.
finance-and-crypto
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A service that fetches public URLs and returns signed receipts containing HTTP status, byte count, and SHA256 hash, with free and paid tiers.
developer-tools
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LineageLint provides various API endpoints for analyzing OpenAPI specifications, infrastructure code security risks, and software development SDK generation with integrated payment support.
developer-tools
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A developer platform providing API access to Polymarket prediction data and tools to reduce LLM token costs by cleaning web content into Markdown.
developer-tools
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NexusEval provides infrastructure for AI agent evaluation, trust verification, and machine-readable payment protocols through a structured API layer.
ai-and-agents
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An API providing a structured second-opinion review of claims or drafts, specifically designed for autonomous agent callers using cryptocurrency payments.
ai-and-agents
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A paid API service that provides independent pre-action reviews for AI agents to identify risks and missing information before executing costly or irreversible actions.
ai-and-agents
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A search API providing various endpoints for research, data retrieval, and specialized information.
developer-tools
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An API providing on-chain investigation and blockchain forensics services via a pay-per-call model.
finance-and-crypto
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x402.orth.shapi
A catalog of APIs providing links to OpenAPI specifications for various data enrichment, job, and AI services.
developer-tools
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An API that decomposes scope documents into work breakdowns including measurable outcomes and acceptance criteria.
ai-and-agents
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A service that allows AI agents to deposit and withdraw USDC into a yield vault using x402 transactions.
finance-and-crypto
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This API provides market intelligence data and statistics for paid services, including resource counts, revenue, and category-specific metrics.
data-and-analytics
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The site provides paid JSON APIs for AI agents to handle temporary file handoffs, HTTPX migration evidence, and Base USDC balance checkpoints.
ai-and-agents
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An API providing access to X user profiles, tweets, and search functionality.
data-and-analytics
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A paid API that provides data on funded developer bounties with scam filtering and competition scoring.
developer-tools
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An API that decomposes scoped documents into work breakdowns including measurable outcomes, acceptance criteria, and verification methods.
ai-and-agents
-
A demo server providing API endpoints for testing x402 payments on the Base network.
developer-tools
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A service that provides durable event waiting and webhook delivery for autonomous agents to resume work after receiving an external event.
ai-and-agents
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A machine-first API for autonomous agents to deploy verified static websites with automated checks and rollback functionality.
ai-and-agents
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viql.upgo.aiapi
A paid API that provides compliance verdicts for vehicle and trip eligibility using the x402 protocol on the Base network.
developer-tools
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An API that provides official Vietnam public holiday information and the operational status of banks, stock markets, and government offices.
developer-tools
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An API for validating email addresses that provides MX records and disposable email checks.
developer-tools
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This API provides blockchain security checks, token intelligence, and market data.
finance-and-crypto
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This service provides various blockchain security and data analysis endpoints, including token safety checks, contract audits, and market intelligence.
finance-and-crypto
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An API that generates Obsidian project or agent markdown scaffolds from a text goal.
ai-and-agents
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A real-time API providing NYC subway, bus, and Citi Bike data for AI agents.
ai-and-agents