# altdata.wiki — llms-full.txt

Extended machine-readable overview. See /llms.txt for the short version.

## What this site is

altdata.wiki is a directory + encyclopedia of alternative data for investors. It indexes 1667 datasets from public hubs and vendors, registers 367 providers across 22 signal categories, and writes an original encyclopedic article per provider, category and dataset (what the signal is, why investors pay, caveats, compliance).

## REST API (no key)

GET /api/v1/datasets?q=&category=&org=&source=&tier=&delivery=&limit=&offset=
  tier: featured | premium | open. source: huggingface | kaggle | snowflake-marketplace | aws-data-exchange | datarade | theirstack.
GET /api/v1/providers?q=&category=&geography=&verified=&limit=&offset=
GET /api/v1/categories
Anonymous: limit ≤ 200. With Bearer token (Google account required): limit ≤ 1000.

## MCP server

POST https://altdata.wiki/api/mcp — JSON-RPC 2.0 (MCP streamable HTTP).
Methods: initialize, tools/list, tools/call.
Tools: search_datasets{q,category,tier,limit}, get_dataset{slug}, list_providers{category,limit}, get_provider{slug}, list_categories{}.

## Access tokens

POST /api/tokens with a Google session cookie creates a bearer token (adw_…). Sign-up via Google is mandatory; manage tokens at /account.

## Signal categories

  - Free & Open Data (slug: free-open) — 36 providers
  - Card & Transactions (slug: card-transactions) — 15 providers
  - Web & Pricing Data (slug: web-pricing) — 33 providers
  - News & Sentiment (slug: news-sentiment) — 37 providers
  - Foot Traffic & Mobility (slug: foot-traffic) — 23 providers
  - ESG & Climate (slug: esg-climate) — 7 providers
  - Satellite & Geospatial (slug: satellite-geospatial) — 24 providers
  - Supply Chain & Shipping (slug: supply-chain) — 19 providers
  - Jobs & Workforce (slug: jobs-workforce) — 12 providers
  - Weather & Agriculture (slug: weather-agriculture) — 10 providers
  - App Usage & Downloads (slug: app-usage) — 14 providers
  - Email Receipts (slug: email-receipts) — 6 providers
  - Credit & Lending (slug: credit-lending) — 13 providers
  - Public Records & Filings (slug: public-records) — 26 providers
  - Expert Networks & Surveys (slug: expert-networks) — 23 providers
  - Sensors & IoT (slug: sensors-iot) — 11 providers
  - Crypto & On-Chain (slug: crypto-onchain) — 13 providers
  - Healthcare & Clinical (slug: healthcare-clinical) — 14 providers
  - Private Markets Signals (slug: private-markets) — 16 providers
  - Auto & Vehicle Data (slug: auto-vehicle) — 5 providers
  - Estimates, Events & Fund Flows (slug: estimates-events-flows) — 10 providers
  - Technographics & Tech Stacks (slug: technographics) — 0 providers

## Featured datasets (first-party)

  - theirstack/job-postings (/datasets/theirstack-job-postings) — Every job posting collected since 2021 — who is hiring, for what, where and at what salary. One row per posting with title, full description
  - theirstack/technographics (/datasets/theirstack-technographics) — Which of 33k technologies each company runs, inferred from what they hire for. One row per company and technology with confidence score, num
  - theirstack/buying-intents (/datasets/theirstack-buying-intents) — What companies are doing, buying, complying with and investing in — from the topics they hire for. 9.4k topics across 14 keyword types rolle

## Notable provider articles

  - Placer.ai (/wiki/placer-ai) — Foot-traffic and location analytics estimating visits to physical venues across the US.
  - RavenPack (/wiki/ravenpack) — Entity-level news and sentiment analytics scored from financial text in real time.
  - Similarweb (/wiki/similarweb) — Web and app traffic, engagement, and digital market-share estimates across millions of sites.
  - Thinknum (/wiki/thinknum) — Web-derived alternative datasets covering hiring, web traffic, and company signals.
  - YipitData (/wiki/yipitdata) — Analyst-ready research products built from web, transaction, and app data across consumer and internet sectors.
  - TheirStack (/wiki/theirstack) — Data company that builds and licenses investment-grade datasets from public signals: job postings, technology adoption a

## Citation & attribution

- External links carry ?source=altdata.wiki.
- Wiki articles cite external sources (Wikipedia, press, directories); do not treat listings as investment advice.