isbnlab.com valid

ISBNLab

ISBNLab (isbnlab.com) is a book metadata database and REST & GraphQL API keyed by ISBN. It returns book, edition, author, publisher, subject and BISAC genre data, groups every edition of the same book together, and validates and converts between ISBN-10, ISBN-13, EAN and ASIN.

Authority
52 reach 11 · trust 5 · quality 21 · freshness 15
Tier
listed
llms.txt
https://www.isbnlab.com/llms.txt
Sections
4
Links
29
Size
3909 bytes
Popularity rank
#75016
Country
US
First seen
2026-10-18T15:08:53.864Z
Last checked
2026-10-18T17:26:48.756Z
Badge
Agent Web Map badge for isbnlab.com

Own this site? Verify it

Verified listings rank first, reach the featured tier (do-follow links) at 60 authority instead of 70, get a link in our llms.txt, a badge, breakage alerts, an editable profile, lookup analytics, and instant re-crawls. Prove ownership with any one of these, then call the verify endpoint (or your agent can do all of it, also over MCP).

  1. llms.txt link (recommended) — add this line to your llms.txt:
    - [Agent Web Map](https://agentwebmap.com/domain/isbnlab.com?verify=awm_470f274b524f0f71534deb370e37ca23)
  2. DNS — add a TXT record:
    _agentwebmap.isbnlab.com. TXT "awm-verify=awm_470f274b524f0f71534deb370e37ca23"
  3. Meta tag — in your homepage <head>:
    <meta name="agentwebmap-verify" content="awm_470f274b524f0f71534deb370e37ca23">
  4. Well-known file — serve the token at:
    https://isbnlab.com/.well-known/agentwebmap-verify.txt  ->  awm_470f274b524f0f71534deb370e37ca23

Then: curl -X POST https://agentwebmap.com/v1/sites/isbnlab.com/verify — the response contains your API key. Full docs.

Machine-readable: GET /v1/domain/isbnlab.com · this page as Accept: application/json or text/markdown · MCP lookup_domain