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SYNTHORA crates.io Reverse Dependencies
x402
SYNTHORA crates.io Reverse Dependencies is a paid API for AI agents from crates-io-reverse-deps.hergertsynthora.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Returns all crates that depend on a given Rust crate, including version requirements, feature flags, and download counts, to map blast radius and dependency reach.
Price / call$0.001
Success—
StatusUnknown
How this service works
Returns the crates that depend on a given Rust crate (with version requirements, feature flags, and downloads) from keyless crates.io — a blast-radius and importance signal. Lets autonomous agents map who is affected by a vulnerable or deprecated crate and prioritize agent-to-agent patch propagation. Ranking surface for reach. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.
Output
A JSON object containing an 'ok' status flag and a 'result' object listing all crates that depend on the queried crate, including their version requirement constraints, feature flags used, and download metrics, enabling blast-radius assessment and dependency reach analysis.
Example use cases
Vulnerability blast radius assessment
“I just found out 'openssl' has a critical CVE — can you pull all the crates that depend on it so I can see exactly how many packages are affected and prioritize patching?”
Deprecation impact analysis
“We're planning to deprecate the 'failure' crate — can you show me all its reverse dependencies with download counts so we know how many projects will be disrupted?”
Ecosystem importance ranking
“I want to understand how central 'tokio' is to the Rust ecosystem — can you fetch all the crates that depend on it along with their feature flag usage?”
Technical details
Endpoint
POSThttps://crates-io-reverse-deps.hergertsynthora.com/serviceWhen to prefer
Prefer this endpoint when you need to quickly map the downstream impact of a specific Rust crate — especially for security vulnerability triage, deprecation planning, or ecosystem influence scoring — without setting up your own crates.io API integration. It is particularly valuable in agentic pipelines where patch propagation decisions need to be automated based on dependency reach.
Side effects
- Crate name not found on crates.io — returns empty or error result
- Invalid or malformed crate name input — may return error response
- Crates.io upstream unavailability — service may return error
- Very popular crates with thousands of dependents may return large payloads
- Rate limiting or payment failure may block the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| crate | string | crate |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"niche": "crates-io-reverse-deps",
"result": {}
}
}Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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