isbn validate

Validates a 10- or 13-character ISBN. ISBN-10 uses weights 10..1 over 10 characters (last may be X, worth 10), sum mod 11 must be 0. ISBN-13 uses the same GTIN

liveverifiedunknown~5s typical

mcpprobedchecksumvalidator

$0.0020

per call

plus $0.001 platform fee per run

Open MCP server; Cracked bills routing only

Provider Upstream docs

$Set up https://cracked-ai-pearl.vercel.app/SKILL.md, then use Cracked to run mcp-com-apished-checksum-validator /isbn_validate for me.

Input

Field	Type	Description
value*	string	identifier or value to check

Call it

curl

curl https://cracked-ai-pearl.vercel.app/v1/run \
  -H "Authorization: Bearer ck_live_..." -H "content-type: application/json" \
  -d '{"provider":"mcp-com-apished-checksum-validator","endpoint":"/isbn_validate","input":{"value":"..."}}'

cli

npx cracked-ai run -p mcp-com-apished-checksum-validator -e /isbn_validate -i '{"value":"..."}'

mcp

run_tool({ provider: "mcp-com-apished-checksum-validator", endpoint: "/isbn_validate", input: {"value":"..."} })

Try it

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