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Publication Update Snapshot
x402
Publication Update Snapshot is a paid API for AI agents from www.mahastrategies.com, paid per call via x402, $0.010062/call, status unknown (last checked 2026-10-17).
Retrieves exact-DOI Crossref update metadata with source hashes to identify corrections, retractions, or other publication changes for a given paper.
Price / call$0.010062
Success—
StatusUnknown
How this service works
Read exact-DOI Crossref update metadata with source hashes. Missing notices do not prove that a paper is unretracted.
Output
Returns structured Crossref update metadata for the specified DOI, including source hashes that allow verification of metadata provenance. May include correction, retraction, expression-of-concern, or other editorial update notices. Explicitly notes that absence of a notice does not confirm a paper is unretracted.
Example use cases
Retraction check before citing paper
“Before I cite this paper in my review, can you check if DOI 10.1126/science.abc1234 has any retraction or correction notices in Crossref's public update records?”
Automated integrity screening pipeline
“Run a publication integrity check on DOI 10.1016/j.cell.2021.05.001 using public data — I need the update metadata and source hashes to feed into our screening pipeline.”
Synthetic data testing for metadata pipeline
“I'm testing our metadata ingestion system — can you fetch update records for DOI 10.1038/nature12373 in synthetic mode so I can validate how we handle Crossref update payloads?”
Technical details
Endpoint
POSThttps://www.mahastrategies.com/api/v1/intel/publications/updates?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need exact-DOI resolution against Crossref update records with source-hash provenance for a single paper, especially in research integrity workflows, citation verification pipelines, or academic due-diligence checks. Prefer this over general retraction-checking services when source hashing and Crossref-native metadata fidelity are required. Note that missing notices do not confirm a paper's integrity — use results as one signal among many.
Side effects
- DOI not found in Crossref — returns empty or null update records
- DOI format invalid or too short — input validation error
- dataClass enum value not recognized — schema validation failure
- Crossref upstream unavailable — service timeout or error
- No update notices exist for a valid DOI — returns empty result (not an error)
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| doi | string | |
| dataClass | string |
Tags
x402
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