Find a service for your task.
Services AI agents can use through MCP, an API or a CLI, best documented first.
Litport
Litport publishes a public API for current free proxy observations and filters.
APINo account needed
Documentation checked 10 Oct 2026
Resytech OCTO API
OCTO-standard supplier integration for bookable tours, activities and attractions. Reseller agents can query available experiences, reserve them and confirm bookings using the operator's authorization token.
API
Documentation checked 13 Oct 2026
OpenF1
OpenF1 is an open-source API providing detailed Formula 1 telemetry, timing, and session data in JSON and CSV formats.
APINo account needed
Documentation checked 9 Oct 2026
Oura
Oura Ring user data API, including sleep, readiness, heart rate, workouts and activity where permitted. Uses OAuth 2.0 and user-consented scopes.
API
Documentation checked 13 Oct 2026
Grant
Grant provides a billing API for managing customers and subscriptions and generating invoices.
API
Documentation checked 11 Oct 2026
DevInbox
Email infrastructure for AI agents with a REST API for retrieving message counts from a mailbox.
API
Documentation checked 11 Oct 2026
PDFBolt
PDFBolt provides REST APIs for generating PDFs from HTTPS URLs, HTML, and published templates.
API
Documentation checked 9 Oct 2026
DummyJSON
DummyJSON offers fake REST API resources for testing and prototyping, including an authentication API.
API
Documentation checked 13 Oct 2026
Daytona
Daytona provides secure, elastic sandboxes for running AI-generated code. Sandboxes are created and managed through an API, SDKs and a CLI.
APICLI
Documentation checked 13 Oct 2026
Mailinator
Mailinator CLI lists messages in private test inboxes for automated email and SMS workflows.
CLI
Documentation checked 10 Oct 2026
icanhazdadjoke
API for searching a collection of dad jokes and returning results in common formats.
APINo account needed
Documentation checked 9 Oct 2026
MarketTrace
Read-only MCP feed for cross-exchange crypto perpetual-futures market data.
MCP
Documentation checked 10 Oct 2026
AgentDM
An agent-to-agent messaging platform exposed through MCP, allowing compatible agents to register and communicate using aliases.
MCP
Documentation checked 9 Oct 2026
Numonic
Numonic provides an MCP server for searching and managing a private library of AI-generated creative assets.
MCP
Documentation checked 10 Oct 2026
Stately
Stately provides the Stately CLI for inventorying local XState machine source files.
CLINo account needed
Documentation checked 11 Oct 2026
Turbopuffer
Turbopuffer’s Namespaces API lists and paginates namespaces in the selected cluster.
API
Documentation checked 10 Oct 2026
Twenty-One Million
Twenty-One Million is an educational Bitcoin website with a public JSON Bitcoin halving API that calculates the halving era, block subsidy, and blocks until the next halving from a supplied block height.
APINo account needed
Documentation checked 10 Oct 2026
Portscan.com
A web API that starts a fast port scan of the server making the request and can return scan results.
APINo account needed
Documentation checked 10 Oct 2026
Pushwoosh
Pushwoosh provides a customer engagement platform with APIs for applications, messaging and analytics.
API
Documentation checked 10 Oct 2026
ImprovMX
Email forwarding service with a documented API for managing domains.
API
Documentation checked 9 Oct 2026
AfterShip
AfterShip Tracking helps eCommerce businesses update and manage shipments. The Tracking API lets agents create, update and retrieve shipment trackings.
API
Documentation checked 13 Oct 2026
Bannerify
Bannerify provides image-generation APIs that render PNG, JPEG, and WebP from one request.
API
Documentation checked 10 Oct 2026
Krea
Get started with the Krea API — create an API token, explore image and video models, and make your first request to generate, edit, or animate content.
API
Documentation checked 9 Oct 2026
Helius
Helius provides Solana RPC and digital asset standard APIs, including getAsset to retrieve detailed NFT, compressed NFT, or token information.
API
Documentation checked 9 Oct 2026