---
$id: https://apis.ax/directory
$type: Directory
$context: https://schema.org
app: "apis.ax"
---

# apis.ax

The agent-first API catalog — every high-quality API an agent needs mid-task, agent-legible by construction, worst-case cost on the wire before the first call.

**8** of **42** listings (category=reference-data).

## Facets

_Derived from the Listing type — no facet was hand-authored._

### Category (enum)

- reference-data (8) — `/directory`
- enrichment (4) — `/directory?category=enrichment`
- web-access (3) — `/directory?category=web-access`
- intelligence (6) — `/directory?category=intelligence`
- compute (2) — `/directory?category=compute`
- geo (3) — `/directory?category=geo`
- finance (2) — `/directory?category=finance`
- commerce (2) — `/directory?category=commerce`
- business (3) — `/directory?category=business`
- compliance (4) — `/directory?category=compliance`
- logistics (3) — `/directory?category=logistics`
- platform (2) — `/directory?category=platform`

## Listings

### auto.dev automotive

- id: `auto-dev-automotive`
- category: reference-data
- sources: NHTSA vPIC, live used-car inventory, ACES/PIES
- pricing: per VIN decode · per listings query · per valuation · per fitment lookup
- detail: https://apis.ax/listings/auto-dev-automotive

VIN decode (NHTSA vPIC normalized, with trim and options), 1M+ live used-car listings, recalls, market valuation, and ACES/PIES parts-fitment — one surface to decode, price, and fit a vehicle.

### Government / legal / regulatory primary sources

- id: `government-legal-sources`
- category: reference-data
- sources: SEC EDGAR, USPTO, PACER, Regulations.gov
- pricing: per query · per document
- detail: https://apis.ax/listings/government-legal-sources

SEC EDGAR filings, USPTO records, PACER dockets, and Regulations.gov — the public filing corpus behind clean, queryable endpoints for legal, finance, and diligence work.

### GTIN attributes + auto fitment (ACES/PIES)

- id: `gtin-fitment-expansion`
- category: reference-data
- sources: GS1 GPC, ACES/PIES, id.org.ai, auto.dev
- pricing: per attribute set · per fitment
- detail: https://apis.ax/listings/gtin-fitment-expansion

Full product-attribute resolution — brand, GPC brick, net content, images — and year/make/model → fitting SKUs: the deep end of product identity and automotive fitment.

### id.org.ai GTIN / GS1 Digital Link resolver

- id: `id-org-ai-gtin`
- category: reference-data
- sources: GS1 Digital Link, in-house resolver, wikidata
- pricing: per resolve · premium for serialized + attribute expansion
- detail: https://apis.ax/listings/id-org-ai-gtin

GTIN/UPC/EAN → a conformant GS1 Digital Link linkset plus normalized product attributes, cross-linked to a canonical wikidata QID — identity-complete product resolution from a bare barcode.

### News & real-time event feeds

- id: `news-event-feeds`
- category: reference-data
- sources: NewsAPI, GDELT, RSS-at-scale
- pricing: per query · subscription for standing feeds
- detail: https://apis.ax/listings/news-event-feeds

Standing monitored news and event feeds — subscribe to a topic instead of re-querying it — for alerting, monitoring, and research that has to notice change, not just search for it.

### schema.org.ai taxonomy knowledge graph

- id: `schema-org-ai-taxonomy`
- category: reference-data
- sources: NAICS/SIC/ISIC/UNSPSC, O*NET, Schema.org
- pricing: per lookup
- detail: https://apis.ax/listings/schema-org-ai-taxonomy

NAICS/SIC/ISIC/UNSPSC crosswalk, O*NET's 1,459 occupations and 17,588 tasks, a 52-system SaaS crosswalk, and 871-type Schema.org resolution — canonical classification lookups on the same entity IDs the rest of the catalog resolves against.

### Social-graph data (IG / TikTok / LinkedIn / X / YouTube)

- id: `social-graph-unofficial`
- category: reference-data
- sources: IG, TikTok, LinkedIn, X, YouTube
- pricing: per successful record · empty or blocked auto-refunds
- detail: https://apis.ax/listings/social-graph-unofficial

Profiles, posts, and follower graphs behind ONE schema-stable contract — with automatic refunds on empty or blocked results and live uptime and freshness readings per endpoint.

### wikidata / wikipedia entity resolution

- id: `wikidata-entity-resolution`
- category: reference-data
- sources: wikidata mirror, GLEIF, company registries
- pricing: per resolve
- detail: https://apis.ax/listings/wikidata-entity-resolution

Name → canonical wikidata QID with GLEIF, registry, and ISIN links; fuzzy company / person / product reconciliation; a registry-identifier crosswalk — served from a dedicated mirror, free of public-endpoint rate limits.

---

> Agent register. Submit a listing: `POST https://apis.ax/listings` with a JSON Listing body. The same state renders as HTML at `https://apis.ax/directory?format=html`.