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Alion Salary Benchmark
x402
Alion Salary Benchmark is a paid API for AI agents from alion.io, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-31).
Returns salary percentile benchmarks (p25/p50/p75) for a given role, country, city, seniority level, and work mode, based on recent job postings.
Price / call$0.05
Success—
StatusUnknown
How this service works
Plain-HTTP twin of the Alion MCP server. Every tool is also a GET/POST endpoint. Send "Authorization: Bearer <key>" (a key from https://alion.io/developers/keys); calls are paid from the account's credits. Or pay a paid tool per call in USDC with x402 (https://x402.org), no account: call it without a key, sign one of the offers in the PAYMENT-REQUIRED header of its 402 and repeat the call with the PAYMENT-SIGNATURE header; or with MPP (https://paymentauth.org): answer a WWW-Authenticate: Payment challenge with Authorization: Payment <credential> (USDC on Base or Solana, a transfer you sign or have sent). Docs: https://alion.io/developers
Output
A JSON object containing salary percentiles (p25, p50, p75) for both stated (from job postings) and estimated figures, the currency, number of data points (n), a transparency rate showing what fraction of postings disclosed salary, time-to-fill percentiles in days, the filters actually applied (role family matched, country ISO, date window), and any warnings about data quality or low sample sizes.
Example use cases
Offer letter compensation check
“I'm about to send an offer to a mid-level frontend developer in London working hybrid — what does the market say the p25, p50, and p75 annual salaries look like for that role right now?”
Startup equity vs cash trade-off analysis
“We're hiring a staff engineer remotely in the US — can you pull the salary benchmark so I know what cash comp range is competitive at the 50th and 75th percentiles?”
Salary negotiation preparation
“I have a job interview in Berlin for a junior data scientist role on-site — what's the typical annual salary range for that position so I know what to ask for?”
Technical details
Endpoint
GEThttps://alion.io/mcp/rest/salary_benchmark?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need structured, percentile-based salary benchmarks grounded in recent job postings (rolling 90-day window) for a specific role, country, city, seniority, or work mode. Prefer it over generic LLM knowledge for compensation because it returns live, source-attributed market data with sample sizes and transparency rates. It is particularly strong for European and US tech roles.
Side effects
- Low n (sample size) for rare role/country combos — response still returned but with warnings
- Unrecognized role string — role may be matched to a broader family or return no results
- Missing required parameters — 400 error
- Payment failure or missing auth — 402 Payment Required with offer details in header
- Rate limit or credit exhaustion — 402 or 429 depending on auth method
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"as_of": "2026-10-20T01:46:36Z",
"salary": {
"period": "year",
"stated": {
"n": 281,
"p25": 75319,
"p50": 88957,
"p75": 112422
},
"currency": "USD",
"estimated": {
"n": 2161,
"p25": 92000,
"p50": 96000,
"p75": 105000
},
"transparency_rate": 0.098
},
"warnings": [],
"filters_applied": {
"role": {
"input": "Backend",
"names": [
"Backend"
],
"matched": "family"
},
"country": {
"iso": "DE",
"name": "Germany"
},
"window_days": 90
},
"time_to_fill_days": {
"n": 848,
"p25": 8,
"p50": 22,
"p75": 39
}
}
}Tags
x402
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