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Agent Payload Tools – Payload Inspect
x402
Agent Payload Tools – Payload Inspect is a paid API for AI agents from api.agent-payload-tools.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-28).
Heuristically inspects a payload string to detect its encoding, format, or data type (e.g. Base64, JWT, JSON, hex, crypto data).
Price / call$0.003
Success—
StatusUnknown
How this service works
Inspect an unknown payload or string and detect whether it looks like JSON, JWT, Base64, hexadecimal, or URL-encoded data without executing code. Useful for payload identification, encoding detection, and deciding how to decode opaque input.
Output
A heuristic analysis result indicating the detected format, encoding, or type of the submitted payload string — such as Base64, JWT, hex, JSON, or other recognizable data structures, along with any structural details the inspector can infer.
Example use cases
Identify unknown encoded blob
“I got this weird string back from an API response and I have no idea what it is — can you inspect it and tell me if it's Base64, hex, a JWT, or something else? Here it is: 'SGVsbG8gV29ybGQ='”
Debug JWT token structure
“I have this token from our auth system and I need to know if it's a valid JWT and what claims it contains: 'eyJhbGciOiJIUzI1NiJ9.eyJ1c2VyIjoiYWxpY2UifQ.abc123' — can you inspect it?”
Validate crypto payload format
“Before I pass this payload to our signing service, can you heuristically check what format it's in — is it a hex-encoded key, a JSON structure, or something else? Here's the data: '7b2274797065223a226b6579227d'”
Technical details
Endpoint
POSThttps://api.agent-payload-tools.workers.dev/payload-inspect?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, deterministic heuristic classification of an unknown payload string — especially useful in agent pipelines that receive opaque data from external APIs and need to route or decode it correctly before further processing. Prefer this over manual regex or custom parsing when the format is uncertain and could be one of many standard types (JWT, JSON, Base64, hex, etc.).
Side effects
- Empty or missing 'input' field returns an error or empty result
- Ambiguous payload that matches multiple formats may return low-confidence or multiple candidate types
- Very large payloads may be truncated or rejected
- Unrecognized or proprietary formats may return an 'unknown' classification
- Network or worker timeout on unusually complex inputs
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | string | Payload text to inspect heuristically. |
Tags
x402
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