data enrichment and lookup apis

Recent window: last 5.4 months (2026-05-01 → 2026-10-11), compared with the prior 5.4 months.

horizontal · 59 members · Data as of 2026-10-14

Products in this niche provide programmatic endpoints to retrieve, verify, and augment datasets with structured metadata such as company profiles, contact details, and market intelligence. Developers, AI engineers, and growth teams purchase these APIs to power automated prospecting pipelines, CRM workflows, and intelligent software agents. Unlike raw web scraping tools or visual analytics dashboards, these solutions deliver clean, schema-standardized payloads designed specifically for direct software integration.

This theme's recent-window count is below the current min-count filter, so it does not appear in the opportunity scorecard.

Pulled from real Hacker News comment threads on this niche's launches.

Most asked for

Add OpenLibrary as data extractor (1)
Raised on Librario, a book metadata API that aggregates G Books, ISBNDB, and more
Add Wikidata as data extractor (1)
Raised on Librario, a book metadata API that aggregates G Books, ISBNDB, and more
Allow hashing email addresses to protect PII in transit (1)
Raised on Yolodex
Database-agnostic implementation (1)
Raised on Librario, a book metadata API that aggregates G Books, ISBNDB, and more
Email verification warning on signup form (1)
Raised on Yolodex
Handle RSS source schema evolution (1)
Raised on Open database of link metadata for large-scale analysis
Historical point-in-time data expansion (1)
Raised on StockFit API
Improve performance speed (1)
Raised on Yolodex

Concerns raised

Accuracy issues (wrong country, wrong person identified) (1)
Raised on Yolodex
Bot detection and scraping circumvention (1)
Raised on Access X, Reddit, Threads and all social media data from a single API
Coverage not near 100% (1)
Raised on Yolodex
Data normalization strategy unclear (1)
Raised on Open database of link metadata for large-scale analysis
Database schema design complexity for tracking data provenance (1)
Raised on Librario, a book metadata API that aggregates G Books, ISBNDB, and more
Feed structure changes (fields added/removed, summaries truncated) (1)
Raised on Open database of link metadata for large-scale analysis
Fragmented data sources with different structures (1)
Raised on Access X, Reddit, Threads and all social media data from a single API
Historical data sparse before 2010 (1)
Raised on StockFit API

Compared to

Anna's Archive (1)
Raised on Librario, a book metadata API that aggregates G Books, ISBNDB, and more
Apify (1)
Raised on Access X, Reddit, Threads and all social media data from a single API
Apollo API (1)
Raised on Yolodex
Arelle (XBRL processing alternative) (1)
Raised on StockFit API
BookFeed.io (author tracking via RSS) (1)
Raised on Librario, a book metadata API that aggregates G Books, ISBNDB, and more
Email verification libs (1)
Raised on Yolodex
Firecrawl.dev (web crawling inspiration) (1)
Raised on Access X, Reddit, Threads and all social media data from a single API
Individual platform APIs (X, Reddit, Threads, Instagram) (1)
Raised on Access X, Reddit, Threads and all social media data from a single API

Members

Name	Source	Upvotes ▲	Launched
Crustdata - Web Search API for AI Agents	YC	79	2026-02-05
LuauStore	GITHUB	96	2026-09-20
Librario, a book metadata API that aggregates G Books, ISBNDB, and more	HN	140	2026-01-10
Hubble	PH	204	2026-08-18
glaz-boga	GITHUB	228	2026-09-22
Job Postings API	PH	260	2026-06-07
akta.pro	PH	432	2026-08-25
ExploreYC	PH	571	2026-07-08
🌿 Fiber AI – Freshest data APIs for AI sales, recruiting, & growth products.	YC	1049	2026-01-19