Neptyune Prompt compressionPOST /api/x402/compress · x402 API by Neptyune
Strips filler, hedging and restated context from text while preserving every fact and instruction. Agents pay per token, so compressing a long context typically costs far less than the tokens it saves. Returns the compressed text with before and after token estimates.
What does this x402 API do?
Neptyune Prompt compression. This is an x402-gated POST API resource from Neptyune. TOLL·402 did not invoke this route automatically because doing so was not considered safe. The listing records $0.003 USD-denominated per request on Base. No settled paid call has been verified.
- Published price
- $0.003 USD-denominated per request
- Networks
- Base
- Latest evidence
- TOLL·402 did not invoke this route automatically because doing so was not considered safe
- Resource ID
- 1d428ad47750dd2982b28b7d
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://api.neptyune.one/api/x402/compress", {
method: "POST",
headers: { "content-type": "application/json" },
body: JSON.stringify({
"replace": "with provider-approved input"
}),
});
console.log(response.status);
console.log(Object.fromEntries(response.headers));
console.log((await response.text()).slice(0, 1000));
// A valid 402 is a quote, not a completed paid call.Review the provider input schema before running this non-read-only method. No payment code is included.
- Observed in 402-index
Discovered through self-registered.
- Exact route checked
not safely testable · potentially-mutating-method:POST
- Origin reachable
HEAD https://api.neptyune.one/ returned 307.
- Registry record checked
Registry health: healthy.
What evidence supports this listing?
Each record has an exact-route quote outcome. Unresolved templates and potentially mutating methods are labeled instead of being invoked without provider-specific test input. A quote is still separate from a settled paid call. Read the discovery and verification methodology →
Which networks and payment options does it accept?
The normalized listing price is $0.003 USD-denominated per request. Raw protocol requirements remain visible below for implementation and audit use.