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Search the agentic web for free. Compare services, APIs, and tools by machine-readable readiness. Organic rank is based on readiness, never payment.

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5749 sites found for "payment API"

SEC EDGAR Filings API

sec-api.io

API data

+15 structured API missing +25 llms.txt

Free VAT Compliance & Exchange Rates API - VATcomply

vatcomply.com

Free, open-source VAT compliance API — EU VAT validation via VIES, VAT rates from TEDB, ECB exchange rates, IP geolocation, and IBAN validation. No API key.

API security

+15 structured API missing +25 llms.txt

Free Weather API - WeatherAPI.com

weatherapi.com

WeatherAPI.com free weather API and weather data and Geolocation API (JSON and XML) for hourly, daily and 15 min interval weather, historical data, bulk request, astronomy, sports and much more.

API data

+15 structured API missing +25 llms.txt

EAN-Search.org | EAN, GTIN, UPC & ISBN Lookup and API

ean-search.org

Search our EAN database with over 1.2 billion products by EAN, GTIN, UPC, ISBN or product name

API AI bots Schema.org data

+15 structured API +5 AI robots missing +25 llms.txt

API Mocking and Testing | Microcks.io

microcks.io

API AI bots Schema.org developer

+15 structured API +5 AI robots missing +25 llms.txt

OctoBoost — SEO Audit API for AI Agents

octo-boost.com

OctoBoost audits websites across SEO, accessibility, performance, UX, and AI visibility. Returns compact, LLM-friendly results — scores and flags, not raw HTML. A full audit fits in a few hundred tokens. 100 free credits on signup.

API AI bots Schema.org ai-tools

+15 structured API +5 AI robots missing +25 llms.txt

Pixela | Record and Track your habits or effort. All by API.

pixe.la

Pixela, Record and Track your habits or effort. All by API. | Pixela is the API service. With this service, you can get a GitHub like graph that expresses the degree of your daily various activities on a basis with a vivid gradation. All operations are performed by API. And, it's free.

MCP other

+10 MCP missing +25 llms.txt

Dynamic PDF Generation via API and Excel Add-in | Advicement

advicement.io

Dynamic PDF generation made easy with JSON to PDF API and Excel Add-In. Write your templates in LaTeX and effortlessly create PDFs with dynamic data, tables and charts.

API productivity

+15 structured API missing +25 llms.txt

API for Automated Image and Video Generation - Bannerbear

bannerbear.com

The Bannerbear API helps you and your team auto-generate social media visuals, ecommerce banners, podcast videos and more

API ecommerce

+15 structured API missing +25 llms.txt

Brasil API

brasilapi.com.br

API gratuita para consultar as mais diversas informações, desde CEP até tabela FIPE!

API other

+15 structured API missing +25 llms.txt

builtwith-api

builtwith.zach.dev

Query the BuiltWith API from your app, terminal, or AI agent.

API ai-tools

+15 structured API missing +25 llms.txt

casestudies.dev — Company Case Studies API

casestudies.dev

Access detailed company case studies via a simple API. Structured data, lightning fast, always up to date.

API developer

+15 structured API missing +25 llms.txt

Oxford Dictionaries API

developer.oxforddictionaries.com

The Oxford Dictionaries API gives you access to our world-renowned dictionary data, including definitions, translations, synonyms, and audio pronunciations.

API developer

+15 structured API missing +25 llms.txt

D&D 5th Edition API

dnd5eapi.co

REST API to access D&D 5th Edition SRD database

API data

+15 structured API missing +25 llms.txt

Figshare API v2

docs.figshare.com

Figshare API 3.0.1 - OpenAPI Specification 3.0 Documentation

API developer

+15 structured API missing +25 llms.txt

OpenAQ API Docs | OpenAQ Docs

docs.openaq.org

Welcome to the OpenAQ API documentation!

API developer

+15 structured API missing +25 llms.txt

Real-Time and Historical Currency Data with Exchange Rates API

exchangeratesapi.io

Access accurate exchange rate data with ExchangeRatesAPI. Our free API provides reliable rates for 170+ currencies, updated every 60 minutes. Get started now!

API finance

+15 structured API missing +25 llms.txt

Genql - SDK client for any GraphQL API

genql.dev

Type safe GraphQL query builder for TypeScript. Create an SDK for any GraphQL API

API developer

+15 structured API missing +25 llms.txt

Go-UPC — The Global Barcode Database and API

go-upc.com

Bring your product application to life with the world's most powerful barcode API. Go-UPC gives you instant access to product data from across the globe.

API data

+15 structured API missing +25 llms.txt

Real-Time Financial Data API | Intrinio

intrinio.com

Intrinio is more than a financial data API provider – we’re a real time data partner. That means we’re your guide to every step of the financial data process.

API data

+15 structured API missing +25 llms.txt

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Wire NHS into your agent — MCP server

Add Not Human Search as an MCP tool. Your agent can call search_agents, get_site_details, get_stats, and submit_site at runtime.

Claude Code

claude mcp add --transport http nothumansearch https://nothumansearch.ai/mcp

Other clients: point any MCP-compatible tool at https://nothumansearch.ai/mcp (streamable-http transport).

Use NHS via REST

Prefer plain HTTP? Hit the search endpoint directly.

Search API

curl "https://nothumansearch.ai/api/v1/search?q=payment+API"

Agent Docs

llms.txt OpenAPI spec ai-plugin.json

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