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What is pmxt archive?
PMXT Archive refers to the historical V1 and V2 capture datasets, rather than the current PMXT hosted trading API. The original archive destination now leads to PMXT’s general documentation; Pendulum Flow exposes the mirrored files, format notes and an audit of what those captures contain.
Who it is for
- Researchers reproducing work based on PMXT archive files
- Analysts who need earlier Polymarket book observations
- Data engineers comparing capture versions
Features and coverage
- Available on
- Parquet, Python, DuckDB
- Markets & venues
- Polymarket
- Earlier capture windows
Browse the available PMXT V1 and V2 intervals in the mirror’s index.
- Public files
Retrieve archived capture files without a trading account.
- Version-specific schemas
Read the relevant format notes before parsing.
- Integrity checks
Use the mirrored prefix’s checksum list.
- Coverage context
Inspect the audit for absent hours and missed markets.
- Adjacent capture eras
Use Pendulum Flow’s index to locate later captures without pretending that all eras are identical.
Workflows with pmxt archive
Reproduce an old analysis
Identify whether it used V1 or V2, locate the same hours, verify checksums and preserve the original schema assumptions.
Extend a research period
Read each era separately, normalize the required fields and record boundaries and gaps rather than concatenating incompatible rows blindly.
Pricing and total cost
The mirrored PMXT capture files are publicly downloadable for free. This is separate from pricing for PMXT’s current hosted API.
Getting started
Before you start: These mirrored eras come from earlier single-recorder captures.
- Open the Pendulum Flow archive index.
- Select the PMXT V1 or V2 era and desired hours.
- Read that era’s format and coverage audit.
- Verify files against the prefix checksum list.
- Run a small market-specific query before processing a long interval.
Useful links
What to check
- These mirrored eras come from earlier single-recorder captures.
- Millisecond timestamps can collide, so intra-millisecond ordering may be unrecoverable.
- A file for an hour does not establish that every market was captured.
- The original PMXT archive link redirects to general product documentation; use the explicit mirror links for files.
A closer look
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Frequently asked questions about pmxt archive
Is this the same as the PMXT SDK?
No. These are historical capture files; the SDK is a separate integration product.
Where are the files accessible?
The Pendulum Flow archive indexes mirrored PMXT V1 and V2 prefixes.
Can I mix these files with V3 directly?
Normalize their schemas and preserve capture-era boundaries.
Does free access include current PMXT trading services?
No. Archive downloads and hosted API access are separate offerings.