File Format Inspector
file-formats.x402tookit.com · 9 paid endpoints · listed 2026-11-02
Parse a ZIP's first entry header: name, method, sizes, CRC, encryption, and zip-slip path or executable-name risks.
Paid endpoints
| Method | Endpoint | Price | Networks |
|---|---|---|---|
| GET | file-formats.x402tookit.com/extension-vs-content Compare a file name's extension with its real type from the first bytes; flags executables disguised as documents or images. | $0.02 | Polygon, Arbitrum, Base, Solana |
| GET | file-formats.x402tookit.com/gif-header Read a GIF's version, width, height and global colour table size from its first 13 bytes. | $0.02 | Polygon, Arbitrum, Base, Solana |
| GET | file-formats.x402tookit.com/gzip-header Parse a gzip header: method, flags, modification time, original file name, OS and compression hint. | $0.02 | Polygon, Arbitrum, Base, Solana |
| GET | file-formats.x402tookit.com/jpeg-info Read a JPEG's width, height, components and baseline/progressive mode by walking its markers; flags JFIF and Exif. | $0.02 | Polygon, Arbitrum, Base, Solana |
| GET | file-formats.x402tookit.com/magic-bytes Identify a file type from the first bytes (hex): PNG, JPEG, PDF, ZIP, ELF, EXE, MP4, SQLite and 40+ more signatures. | $0.02 | Polygon, Arbitrum, Base, Solana |
| GET | file-formats.x402tookit.com/pdf-header Read a PDF's version and header position from its first bytes; flags junk before %PDF- and an invalid version. | $0.02 | Polygon, Arbitrum, Base, Solana |
| GET | file-formats.x402tookit.com/png-header Read a PNG's width, height, bit depth, colour type and interlace from its first 33 bytes, and verify the IHDR CRC. | $0.02 | Polygon, Arbitrum, Base, Solana |
| GET | file-formats.x402tookit.com/webp-info Read a WebP's width, height, lossy/lossless/extended format, alpha and animation flags from its first 30 bytes. | $0.02 | Polygon, Arbitrum, Base, Solana |
| GET | file-formats.x402tookit.com/zip-entry Parse a ZIP's first entry header: name, method, sizes, CRC, encryption, and zip-slip path or executable-name risks. | $0.02 | Polygon, Arbitrum, Base, Solana |
Latest checks
| When | Endpoint | HTTP | ms | Result |
|---|---|---|---|---|
| Not checked yet. | ||||
Income on Base (7 days)
This provider's payout address is shared by several providers, so its income is not shown as its own.
Is this your API?
<a href="https://logicnodes.io/observatory/p/file-formats.x402tookit.com"><img src="https://logicnodes.io/observatory/badge/file-formats.x402tookit.com.svg" alt="x402 status"></a>
Claim it for free with
x402_provider_claim (sign with your payout address), and get an alert within minutes when it stops answering with x402_monitor_create ($5 for 30 days). Both work over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/<tool>.Income is all USDC received by the provider's payout address on Base, whatever the source. Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. JSON: /v1/observatory/providers/file-formats.x402tookit.com