-
An API that provides currency exchange rates based on European Central Bank euro reference rates.
finance-and-crypto
-
BuiltWith provides APIs for accessing web technology data, website relationships, and technology lists.
developer-tools
-
This API provides access to NIH biomedical grant data, including investigator profiles, organization funding, and project details.
health
-
commsharbor.comsaas
CommsHarbor provides business email, webmail, and a management API for domain-based email services.
productivity
-
An API that provides sentiment scores for various cryptocurrencies based on recent news headlines.
finance-and-crypto
-
A service that provides pre-payment checks for AI agents to verify endpoint prices and screen payment addresses against freeze lists.
ai-and-agents
-
okfindex.comsaas
A platform to find, manage, and publish knowledge bundles and datasets for AI agents.
ai-and-agents
-
An API providing US retail point-of-sale sales and units data for approximately 380 consumer companies.
data-and-analytics
-
An API service providing airline lookup, callsign conversion, and flight number parsing based on a 2017 OpenFlights dataset.
data-and-analytics
-
An API that provides cited web evidence from user-provided URLs and US weather data for AI agents.
ai-and-agents
-
A pay-per-call API for VIN decoding and structural validation for AI agents using the x402 protocol on the Base network.
ai-and-agents
-
An API that maps news headlines to relevant Polymarket prediction markets for trading agents.
finance-and-crypto
-
An API that provides cryptocurrency prices, market cap, and volume data for various tokens and chains.
finance-and-crypto
-
An API for verifying FDA 510(k) device clearances using USDC on the Base network.
health
-
A pay-per-call API for filtering JSON and NDJSON event logs using Base USDC.
developer-tools
-
An API providing company registry and financial data for businesses in Sweden, Norway, Finland, and the United Kingdom.
data-and-analytics
-
An API that provides AI-synthesized home intelligence data such as maintenance checklists, improvement ROI analysis, and neighborhood research.
ai-and-agents
-
This service provides real-time USDC/USD price feeds, payment amount validation, and market data on the Base network.
finance-and-crypto
-
BeliefState provides financial analyst research and stock theses via API and MCP for AI agents.
finance-and-crypto
-
A service providing per-request data for AI agents, including weather probability distributions and Federal Reserve event calendars, via USDC payments.
ai-and-agents
-
An API providing product safety intelligence, including recalls and safety ratings, for AI agents.
data-and-analytics
-
The site provides API endpoints for validating bank routing numbers, BIC codes, card numbers, US EINs, EU VAT numbers, and IBANs.
finance-and-crypto
-
ViewportWitness provides automated website checks including viewport screenshots, accessibility evidence, visual comparison, and HTML extraction via an API.
developer-tools
-
An API providing small business calculators for quotes, estimates, and late fees.
productivity
-
An API providing cryptocurrency quantitative analysis tools including backtesting, market regime signals, and token scam checks.
finance-and-crypto
-
An API providing pharmacokinetic simulations and reconstitution calculations for various compounds.
health
-
An API service providing web intelligence tools such as markdown conversion, metadata extraction, and company enrichment for AI agents.
ai-and-agents
-
An API service providing web extraction, cryptocurrency price and balance checks, and YouTube media extraction on the Base network.
ai-and-agents
-
A test endpoint for verifying x402 payment integration and smoke-testing clients.
developer-tools
-
The service provides an API for AI agents to obtain US phone numbers for two-way SMS and MMS messaging.
ai-and-agents
-
An API service for generating and inspecting UUIDs, including support for UUIDv7 and UUIDv4.
developer-tools
-
This site provides an API for performing various time series calculations including moving averages, autocorrelation, and outlier detection.
data-and-analytics
-
An API providing DeFi risk assessment services such as sanctions screening and transaction simulation for AI agents.
ai-and-agents
-
An API providing cryptocurrency and web data, including wallet balances, transaction status, and web page fetching, for AI agents.
ai-and-agents
-
An API providing mental health intelligence, including assessments, therapy matching, and coping techniques, designed for use by AI agents.
health
-
An API providing Latin American economic data including currency exchange rates, commodity prices, and Argentina's blue dollar spread.
finance-and-crypto
-
This API provides access to historical and current Brazilian inflation and interest rate data.
finance-and-crypto
-
An API service for checking federal enforcement actions, court records, or filings against companies.
data-and-analytics
-
This API provides tools to normalize store prices and pack sizes into common units such as kilograms or liters using open data sources.
data-and-analytics
-
This API provides solvers for mathematical optimization problems such as assignment, bin-packing, interval scheduling, and knapsack problems.
developer-tools
-
subnano.aiecommerce
A marketplace for buying and selling digital assets such as code, datasets, and posts using cryptocurrency.
commerce
-
getauros.comsaas
A platform providing data and signals for monitoring real-world assets in the energy and green sectors.
finance-and-crypto
-
The site offers paid API endpoints for autonomous agents to monitor and analyze the Cosmos interchain ecosystem.
finance-and-crypto
-
An API providing various photography calculations such as depth of field, exposure value, and crop factor.
design-and-creative
-
An API service providing OFAC wallet screening, token verdicts, and company research data.
finance-and-crypto
-
An API providing agricultural commodity intelligence, including prices and trend data for various crops and cattle.
data-and-analytics
-
This API provides real-time transaction costs in USD for various EVM-compatible blockchain networks.
finance-and-crypto
-
The site provides paid API endpoints for autonomous agents to analyze DAO and NFT data, including governance risk and wash-trading detection.
finance-and-crypto
-
The site provides a football intelligence API offering endpoints for match previews, fantasy football data, and betting analysis.
data-and-analytics
-
aiagentscity.comsaas
The site provides an operations layer for AI agents, offering tools for spending limits, monitoring, security, and trust via MCP and API integrations.
ai-and-agents
-
This service provides an API and MCP interface for discovering and accessing paid x402 endpoints and liquidity pool data.
ai-and-agents
-
An API providing on-chain analytics including whale tracking, DEX volume, and DeFi protocol TVL shifts.
finance-and-crypto
-
This API provides cross-market systemic and contagion-cascade risk signals.
finance-and-crypto
-
This service provides access to World Bank economic and social indicators through various paid API endpoints.
data-and-analytics
-
api.polym.ukapi
This API provides Polymarket market-flow data and UMA resolution base rates for machine consumers.
finance-and-crypto
-
This site provides pay-per-call API endpoints for retrieving various data profiles and identifiers from Wikidata.
data-and-analytics
-
A pay-per-call API service providing endpoints for date and time arithmetic, such as business days, overtime, and pay periods.
developer-tools
-
A pay-per-call API service for retrieving domain registration, DNS records, and email authentication information.
developer-tools
-
buy.fizzl.euapi
An API service that enables AI agents to purchase and receive answers from paid third-party APIs using cryptocurrency.
ai-and-agents
-
This service offers API endpoints for word-related queries including rhymes, synonyms, anagrams, and Scrabble scores.
developer-tools
-
An API service that extracts checkable claims from AI-generated answers and verifies them using various public data sources.
ai-and-agents
-
This site provides a real-time cryptocurrency market data API for AI agents and quantitative traders, covering prices, derivatives, and various market metrics.
finance-and-crypto
-
An API service providing deduplicated cryptocurrency news headlines and links from multiple outlets for AI agents.
finance-and-crypto
-
An API providing URL intelligence services including status checks, redirect chains, SSL expiry, and metadata extraction.
developer-tools
-
This API provides pay-per-request datasets for autonomous agents, including information on Steam, FIFA, and news.
ai-and-agents
-
This service provides pay-per-call API endpoints for B2B person and organization enrichment data intended for autonomous AI agents.
ai-and-agents
-
An API providing blockchain monitoring tools and web data extraction services.
finance-and-crypto
-
A pay-per-call web reader API for AI agents that provides markdown or metadata from web pages and PDFs using USDC payments.
ai-and-agents
-
The site provides API endpoints for autonomous agents to validate data within EU commerce documents and product pages.
ai-and-agents
-
An API service providing token risk verdicts and smart contract security scans for AI agents and developers.
finance-and-crypto
-
An API service providing blockchain data, transaction status, and contract probes on the Base and Solana networks for a fee in USDC.
finance-and-crypto
-
An API for searching job openings by role, skill, company, location, and salary.
other
-
The service provides asynchronous browser tasks such as site crawling, page rendering, and document conversion.
developer-tools
-
An API providing access to the Internal Revenue Manual (IRM) sections through keyword search and direct retrieval.
data-and-analytics
-
img402.devsaas
An image hosting service for AI agents that provides public URLs for uploaded images via an API.
ai-and-agents
-
An API that provides IMF DataMapper indicators, such as real GDP growth, for specific countries and year ranges.
finance-and-crypto
-
A tool that grades the security headers of a public URL and provides scores, missing headers, and suggested fixes.
developer-tools
-
hack.x402git.comsaas
A platform for developers to offer early access to open source releases to AI agents in exchange for cryptocurrency payments.
ai-and-agents
-
This API provides a schedule of Japanese market and macro events for AI agents.
finance-and-crypto
-
An API service that classifies product descriptions into candidate HS/HTS10 tariff codes using deterministic BM25 retrieval over the USITC schedule.
developer-tools
-
An API that provides DNS records, TLS certificates, WHOIS data, and subdomains for a given domain.
developer-tools
-
An API that performs fuzzy deduplication of records into clusters of likely-duplicate entities using deterministic matching.
data-and-analytics
-
DocEdge provides an API for converting PDF documents to Markdown and extracting document intelligence.
developer-tools
-
A service that provides webhook alerts when watched domains appear in ransomware leak-site claims.
data-and-analytics
-
A tool for removing backgrounds from images to create transparent cutouts.
design-and-creative
-
This page allows users to purchase prepaid credits for the YourAITools x402 agent APIs using card or cryptocurrency.
ai-and-agents
-
An API that provides regulatory applicability checks for the EU AI Act, Colorado SB26-189, and NYC Local Law 144.
ai-and-agents
-
An API that allows AI agents to purchase human judgment, verification, and consensus for specific tasks.
ai-and-agents
-
An API providing US government contract intelligence, including active RFPs and historical award data.
data-and-analytics
-
Tollkit provides pay-per-call API tools for AI agents, including web scraping, blockchain lookups, and SEC data retrieval.
ai-and-agents
-
This API provides hot search data from various Chinese social media and news platforms.
data-and-analytics
-
A service that repurposes URLs into LinkedIn posts, tweets, newsletter blurbs, and SEO summaries.
marketing-and-seo
-
aspern.orgapp
A platform providing data and metrics on autonomous agent activity, capital movement, and identity within blockchain networks.
ai-and-agents
-
clawmail.xyzapi
An email infrastructure service that allows AI agents to purchase and manage their own inboxes via API.
ai-and-agents
-
An API providing EVM and Solana blockchain data such as balances, tokens, and transaction logs through pay-per-call HTTP requests.
finance-and-crypto
-
An API for discovering Web3 leads using GitHub queries and blockchain network parameters.
finance-and-crypto
-
The site provides hand-audited trading holiday calendars for global exchanges and various asset classes.
finance-and-crypto
-
A service that screens untrusted text for prompt injection attacks and provides an API for integration into agent workflows.
ai-and-agents
-
An API that provides machine-readable business verification snapshots including verdicts and evidence based on business name and state.
data-and-analytics
-
A service that checks token contracts on Robinhood Chain, Base, and Solana for security risks such as honeypots or unlocked liquidity.
finance-and-crypto
Verified sites — page 3
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.