Browse by what services do

The capability tree (tree/2): 16 branches and their leaves, with the number of services in each. Empty leaves are shown too: they tell us where to look next.

18,000 of 55,786 services placed so far; 3,324 (6%) in Other, because their names and descriptions do not say clearly what they do. Each service has one primary leaf and at most two secondary leaves, set by placement-rules/2: fixed keyword and pattern rules over the service's name, URL path, tags and registry description (descriptions are read, never published). Payment wording (x402, USDC, pay per call) is ignored. Anything unclear goes to "other" rather than being guessed. Every placement shows its method and date; placements are kept as history, and services are re-checked at least every 30 days. A branch's count includes services placed in any of its leaves, counted once. Also as JSON at /api/v1/tree and the MCP tool get_tree.

Search and information 1,576

Finding information: web search, news, research, companies, reference data, social posts, legal and IP records, directories, sports and entertainment.

Web access and automation 2,222

Reading and operating websites: fetching pages, browsers, screenshots, site analysis, domains and network lookups.

AI models 613

Models an agent can call: language, embeddings, vision, translation, speech, images, video and audio.

Payments and money 476

Moving money: accepting payments, payouts, invoices, crypto transfers, currency and banking, gift cards.

Financial and economic data 5,679

Data about markets, crypto, decentralised finance, the economy and companies' finances.

Messaging and communication 645

Reaching people and systems: email, SMS and calls, chat, notifications, physical mail.

Maps, places and weather 837

Where things are and what conditions are like: maps, addresses, routes, local data, weather, environment.

Compute, code and storage 918

Running code and keeping data: code execution, storage, databases, hosting, developer data.

Documents and media 912

Working with files and content: documents and PDFs, conversion, images, audio and video, codes, text.

Identity, security and compliance 987

Who and what can be trusted: sign-in, verification, compliance screening, security data.

Business and productivity 710

Business systems: calendars, customer records, projects, accounting, knowledge.

Commerce, travel and logistics 607

Buying, selling, moving and staying: products, procurement, shipping, travel, property.

Work and task marketplaces 148

Getting work done by others: agent task marketplaces, hiring people, bounties, job postings.

Local and physical services 133

Services in the physical world: local trades and businesses, delivery and errands.

Health 293

Clinical and health data: clinical calculators and scores, medicines and medical data.

Calculate and convert 170

Working things out: calculators, maths and science, units, time and dates.

Moved branches

Published ids never break: these answer exactly as the branches they moved to.

Tree rules

• A branch is something an agent wants to get done, said as plainly as possible: find information, move money, know the weather. Never a vendor, and technology words only low in the tree, where they are what an agent asks for.
• IDs are permanent. A published ID is never deleted or reused for something else; its wording can be clarified, its meaning cannot change.
• The tree only grows: leaves are added, a crowded leaf is split (the parent keeps working and includes its children), and an ID that moves becomes a forwarding address that answers exactly as its replacement, forever.
• Splits and additions follow evidence: a leaf that grows large or whose demand clearly divides, and gaps shown by searches that find nothing, the Other share, feedback and research.
• Each change is a new tree version with a changelog entry and its reason; services are re-placed automatically.
• Where good public standards exist we use them rather than compete: subject codes from UNSPSC and NAICS for what a service is about.

The tree and these rules are published under CC BY 4.0 (free to use, with credit to Agent Service Directory).