x402 List

x402 Protocol Service Directory

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ByKaranteli Crypto Derivatives Data

Data PAYMENT-READY

payment-ready until 2026-10-02

Pay-per-call crypto derivatives depth: multi-exchange liquidation map levels, Deribit options tape history, and VPIN order-flow toxicity history for BTC, ETH and SOL. Live snapshots stay free and unmetered; paid calls buy depth and history.

Pay from $0.10 per request in USDC on Base / Solana, settled onchain via the x402 protocol, no signup, no API key needed.

measured since 2026-08-08 (start of our harvest window) · $0.29 all-time · settled via coinbase

BASE URL https://bykaranteli.com │ WEBSITE https://bykaranteli.com/developers │ ENDPOINTS 3 │ NETWORK Base / Solana │ ASSET USDC │ MEMBER SINCE 2026-08-09 │ MONITORED SINCE 2026-08-09

VERDICT

ranking generation 3

solid 81/100 #205 of 320 in Data by measured score

What the score read on this service: status online, 99.9% uptime 30d, 819ms response p95, x402 compliance 14 of 14, $0.1 price against the category, on-chain traction measured. Each of those is measured, and each is published in full below.

The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.

It is a score inside Data, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 320 listings, this one among them. That set is wider than the 320 the position above is counted against, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.

Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.

ALTERNATIVES IN DATA

Other Data services in this directory, ordered by the same measured score. The figures are ours: 30-day uptime from our own probes, 30-day settlement volume read on-chain (a conservative undercount, and null where we cannot measure it, never a zero).

Ranked alternative x402 services in the same category, with band, measured score, 30-day uptime and 30-day on-chain settlement volume
SERVICE BAND SCORE UPTIME 30D VOL 30D
Lemon Toolshed strong 97 100% ---
Agent Web Access strong 97 99.7% ---
longwatch strong 97 100% ---
StableEnrich strong 95 100% $2.0k
SniperX•x402 strong 95 100% $273.81
5 of 319 other ranked services in Data · see the whole category

ASSESSMENT

updated 1h ago

The parts the verdict above is computed from, each with its proof. Click any chip. Measured values stay read-only; unknown is honest, and an unknown is never counted as a zero.

reliability 99.9%
uptime 24h
100%
uptime 7d
100%
uptime 30d
99.9%
uptime 90d
99.7%
response p95
819ms
avg response
347ms
total checks
2,699

Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.

compliance A (14/14)

14 of 14 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

price $0.10 (p92 in Data)
price (min)
$0.10
category percentile (min)
p92 in Data
endpoints / prices
3 / 1
model
flat
stability
0%
risk clean

No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.

domain age
362d
registrar
HOSTINGER operations, UAB
hosting
custom
domain created
2025-09-25

Identity facts, not a risk score.

traction $0.127 30d · 12 buyers
volume 30d
$0.127
buyers 30d
12
settlements 30d
33
measured since
2026-08-08 (start of our harvest window)
last settlement
2026-09-23
top buyer share
63% of 30d volume
trend 7d vs 30d
0.13x the 30d daily rate
networks
eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
volume all-time
$0.29
settlements all-time
77
median settlement 30d
$0.005
max settlement 30d
$0.01
settled via
coinbase ($0.13, 33 tx)

Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.

Top buyer share is a concentration signal, not part of the ranking score.

CHANGES

10 in 30d

Payout, price, and schema changes detected on this service's x402 wire. A payout rotation at an unchanged price shows up here even when nothing else moves. Full feed at /changes.

changes schema changed 5h ago (10 in 30d)

schema changed · 5h ago

schema removed GET /api/x402/flow-vpin exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema removed GET /api/x402/liqmap-levels exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema removed GET /api/x402/options-flow exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema added GET /api/x402/flow-vpin exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema added GET /api/x402/liqmap-levels exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema added GET /api/x402/options-flow exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

price changed · 8h ago

GET /api/x402/flow-vpin · eip155:8453 · USDC: 2000 → 100000

GET /api/x402/flow-vpin · solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp · USDC: 2000 → 100000

GET /api/x402/liqmap-levels · eip155:8453 · USDC: 5000 → 100000

GET /api/x402/liqmap-levels · solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp · USDC: 5000 → 100000

GET /api/x402/options-flow · eip155:8453 · USDC: 5000 → 100000

GET /api/x402/options-flow · solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp · USDC: 5000 → 100000

schema changed · 19h ago

schema removed GET /api/x402/flow-vpin exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"}

schema removed GET /api/x402/liqmap-levels exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"}

schema removed GET /api/x402/options-flow exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"}

schema added GET /api/x402/flow-vpin exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema added GET /api/x402/liqmap-levels exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema added GET /api/x402/options-flow exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema changed · 20h ago

schema removed GET /api/x402/flow-vpin exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"}

schema removed GET /api/x402/liqmap-levels exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"}

schema removed GET /api/x402/options-flow exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"}

schema added GET /api/x402/flow-vpin exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"}

schema added GET /api/x402/liqmap-levels exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"}

schema added GET /api/x402/options-flow exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"}

schema changed · 23h ago

schema removed GET /api/x402/flow-vpin exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema removed GET /api/x402/liqmap-levels exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema removed GET /api/x402/options-flow exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema added GET /api/x402/flow-vpin exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"}

schema added GET /api/x402/liqmap-levels exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"}

schema added GET /api/x402/options-flow exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"}

schema changed · 23h ago

schema removed GET /api/x402/flow-vpin exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema removed GET /api/x402/liqmap-levels exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema removed GET /api/x402/options-flow exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema added GET /api/x402/flow-vpin exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema added GET /api/x402/liqmap-levels exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema added GET /api/x402/options-flow exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema changed · 36h ago

schema removed GET /api/x402/flow-vpin exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema removed GET /api/x402/liqmap-levels exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema removed GET /api/x402/options-flow exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema added GET /api/x402/flow-vpin exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema added GET /api/x402/liqmap-levels exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema added GET /api/x402/options-flow exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema changed · 37h ago

schema removed GET /api/x402/flow-vpin exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema removed GET /api/x402/liqmap-levels exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema removed GET /api/x402/options-flow exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema added GET /api/x402/flow-vpin exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema added GET /api/x402/liqmap-levels exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema added GET /api/x402/options-flow exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema changed · 40h ago

schema removed GET /api/x402/flow-vpin exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"}

schema removed GET /api/x402/liqmap-levels exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"}

schema removed GET /api/x402/options-flow exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"}

schema added GET /api/x402/flow-vpin exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema added GET /api/x402/liqmap-levels exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema added GET /api/x402/options-flow exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"}

schema changed · 46h ago

schema removed GET /api/x402/flow-vpin exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema removed GET /api/x402/liqmap-levels exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema removed GET /api/x402/options-flow exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"}

schema added GET /api/x402/flow-vpin exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"}

schema added GET /api/x402/liqmap-levels exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"}

schema added GET /api/x402/options-flow exact solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v USDC 2 300 {"feePayer":"Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"}

Amounts are on-wire atomic units in the named asset.

see all changes for this service

WHAT IT DOES

ai-derived

No AI synthesis has been produced for this service yet.

ENDPOINTS

Service endpoints with HTTP method, path, description, pricing, and network
METHOD PATH DESCRIPTION PRICE NETWORK ASSET 402 CHANNEL
GET /api/x402/flow-vpin $0.10 Base/Solana USDC header
GET /api/x402/liqmap-levels $0.10 Base/Solana USDC header
GET /api/x402/options-flow $0.10 Base/Solana USDC header
3 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to GET /api/x402/flow-vpin returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request
curl -i 'https://bykaranteli.com/api/x402/flow-vpin'
// 402 response (captured by monitor) · 3 payloads · click to expand 
[
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x0db4c96d8b14f431f3bb8ce1a33f07d2c696a62c",
        "amount": "100000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
        },
        "payTo": "4JgPtoBWkQyG3QffVJC3bfgk7SCQrz9bx2SAEUTSVqzK",
        "amount": "100000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://bykaranteli.com/api/x402/flow-vpin",
      "tags": [
        "crypto",
        "orderflow",
        "vpin",
        "data"
      ],
      "mimeType": "",
      "description": "Order flow toxicity (VPIN) history for BTC, ETH and SOL: 90-day daily VPIN track with closes plus the last 500 volume buckets.",
      "serviceName": "ByKaranteli VPIN Flow Toxicity"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {}
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "rows": [
                {
                  "vpin": 0.31,
                  "symbol": "BTCUSDT",
                  "percentile_90d": 62.5
                }
              ]
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method"
              ],
              "properties": {
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "properties": {}
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x0db4c96d8b14f431f3bb8ce1a33f07d2c696a62c",
        "amount": "100000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
        },
        "payTo": "4JgPtoBWkQyG3QffVJC3bfgk7SCQrz9bx2SAEUTSVqzK",
        "amount": "100000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://bykaranteli.com/api/x402/liqmap-levels",
      "tags": [
        "crypto",
        "liquidations",
        "derivatives",
        "data"
      ],
      "mimeType": "",
      "description": "Full multi-exchange liquidation map snapshot for a Binance USDT-M perp: modeled leverage clusters, real forceOrder levels, top magnets, funding, OI and orderbook context.",
      "serviceName": "ByKaranteli LiqMap Levels"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "symbol": "BTCUSDT",
              "timeframe": "1h"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "stats": {
                "last_price": 118000
              },
              "symbol": "BTCUSDT",
              "real_levels": {
                "clusters": "..."
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method"
              ],
              "properties": {
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "properties": {
                    "symbol": {
                      "type": "string",
                      "description": "Ticker covered by LiqMap, e.g. BTC, ETH or SOL, with or without the USDT suffix (default BTC); the list is at https://bykaranteli.com/liqmap"
                    },
                    "exchange": {
                      "type": "string",
                      "description": "One venue's model instead of the multi-venue merge, default all: all, binance, bybit, okx, gate, htx or hyperliquid"
                    },
                    "leverage": {
                      "type": "string",
                      "description": "Leverage group, default all: all, low (5x and 10x), medium (25x) or high (50x and 100x)"
                    },
                    "timeframe": {
                      "type": "string",
                      "description": "Lookback window for the position model: 1h, 4h, 12h, 24h, 3d, 1w or 30d (default 24h)"
                    }
                  }
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0x0db4c96d8b14f431f3bb8ce1a33f07d2c696a62c",
        "amount": "100000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      },
      {
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
        },
        "payTo": "4JgPtoBWkQyG3QffVJC3bfgk7SCQrz9bx2SAEUTSVqzK",
        "amount": "100000",
        "scheme": "exact",
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://bykaranteli.com/api/x402/options-flow",
      "tags": [
        "crypto",
        "options",
        "deribit",
        "okx",
        "data"
      ],
      "mimeType": "",
      "description": "BTC or ETH options tape depth from our own recorded Deribit and OKX flow: the daily premium-flow history plus the full big-print list with strike, expiry, direction, premium, implied volatility and venue.",
      "serviceName": "ByKaranteli Options Flow Tape"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {
              "currency": "BTC"
            }
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "currency": "BTC",
              "call_premium_24h_usd": 1250000
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method"
              ],
              "properties": {
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "properties": {
                    "currency": {
                      "type": "string",
                      "description": "BTC or ETH (default BTC)"
                    }
                  }
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 90d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/bykaranteli-crypto-derivatives-data/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.

UPTIME
08-09 · uptime 100.0% · 158ms avg08-10 · uptime 97.8% · 313ms avg08-11 · uptime 100.0% · 246ms avg08-12 · uptime 100.0% · 216ms avg08-13 · uptime 95.6% · 329ms avg08-14 · uptime 100.0% · 258ms avg08-15 · uptime 100.0% · 321ms avg08-16 · uptime 100.0% · 328ms avg08-17 · uptime 100.0% · 313ms avg08-18 · uptime 98.9% · 268ms avg08-19 · uptime 100.0% · 271ms avg08-20 · uptime 98.9% · 450ms avg08-21 · uptime 100.0% · 333ms avg08-22 · uptime 100.0% · 261ms avg08-23 · uptime 98.9% · 329ms avg08-24 · uptime 100.0% · 387ms avg08-25 · uptime 98.9% · 366ms avg08-26 · uptime 98.9% · 450ms avg08-27 · uptime 100.0% · 504ms avg08-28 · uptime 100.0% · 406ms avg08-29 · uptime 100.0% · 364ms avg08-30 · uptime 100.0% · 125ms avg08-31 · uptime 100.0% · 149ms avg09-01 · uptime 100.0% · 208ms avg09-02 · uptime 100.0% · 469ms avg09-03 · uptime 97.8% · 367ms avg09-04 · uptime 100.0% · 491ms avg09-05 · uptime 100.0% · 444ms avg09-06 · uptime 100.0% · 369ms avg09-07 · uptime 100.0% · 280ms avg09-08 · uptime 100.0% · 278ms avg09-09 · uptime 100.0% · 314ms avg09-10 · uptime 100.0% · 339ms avg09-11 · uptime 100.0% · 320ms avg09-12 · uptime 100.0% · 307ms avg09-13 · uptime 100.0% · 244ms avg09-14 · uptime 100.0% · 161ms avg09-15 · uptime 100.0% · 200ms avg09-16 · uptime 100.0% · 372ms avg09-17 · uptime 100.0% · 354ms avg09-18 · uptime 100.0% · 304ms avg09-19 · uptime 100.0% · 331ms avg09-20 · uptime 100.0% · 480ms avg09-21 · uptime 100.0% · 335ms avg09-22 · uptime 100.0% · 585ms avg09-23 · uptime 100.0% · 460ms avg09-24 · uptime 100.0% · 417ms avg09-25 · uptime 100.0% · 264ms avg08-0909-25
90d UPTIME 99.7%
RESPONSE TIME
08-09 · 158ms avg08-09 · 158ms avg08-10 · 313ms avg08-10 · 313ms avg08-11 · 246ms avg08-11 · 246ms avg08-12 · 216ms avg08-12 · 216ms avg08-13 · 329ms avg08-13 · 329ms avg08-14 · 258ms avg08-14 · 258ms avg08-15 · 321ms avg08-15 · 321ms avg08-16 · 328ms avg08-16 · 328ms avg08-17 · 313ms avg08-17 · 313ms avg08-18 · 268ms avg08-18 · 268ms avg08-19 · 271ms avg08-19 · 271ms avg08-20 · 450ms avg08-20 · 450ms avg08-21 · 333ms avg08-21 · 333ms avg08-22 · 261ms avg08-22 · 261ms avg08-23 · 329ms avg08-23 · 329ms avg08-24 · 387ms avg08-24 · 387ms avg08-25 · 366ms avg08-25 · 366ms avg08-26 · 450ms avg08-26 · 450ms avg08-27 · 504ms avg08-27 · 504ms avg08-28 · 406ms avg08-28 · 406ms avg08-29 · 364ms avg08-29 · 364ms avg08-30 · 125ms avg08-30 · 125ms avg08-31 · 149ms avg08-31 · 149ms avg09-01 · 208ms avg09-01 · 208ms avg09-02 · 469ms avg09-02 · 469ms avg09-03 · 367ms avg09-03 · 367ms avg09-04 · 491ms avg09-04 · 491ms avg09-05 · 444ms avg09-05 · 444ms avg09-06 · 369ms avg09-06 · 369ms avg09-07 · 280ms avg09-07 · 280ms avg09-08 · 278ms avg09-08 · 278ms avg09-09 · 314ms avg09-09 · 314ms avg09-10 · 339ms avg09-10 · 339ms avg09-11 · 320ms avg09-11 · 320ms avg09-12 · 307ms avg09-12 · 307ms avg09-13 · 244ms avg09-13 · 244ms avg09-14 · 161ms avg09-14 · 161ms avg09-15 · 200ms avg09-15 · 200ms avg09-16 · 372ms avg09-16 · 372ms avg09-17 · 354ms avg09-17 · 354ms avg09-18 · 304ms avg09-18 · 304ms avg09-19 · 331ms avg09-19 · 331ms avg09-20 · 480ms avg09-20 · 480ms avg09-21 · 335ms avg09-21 · 335ms avg09-22 · 585ms avg09-22 · 585ms avg09-23 · 460ms avg09-23 · 460ms avg09-24 · 417ms avg09-24 · 417ms avg09-25 · 264ms avg09-25 · 264ms avg08-0909-25
AVG RESP 347ms
PRICE (captured 402, USD)
08-09 · $0.00509-24 · $0.1009-25 · $0.10$0.1008-0909-25

Median across 3 endpoints. Use the selector to isolate one.

SUB-SCORES (uptime + x402 compliance)
08-09 compliance: 100% checks08-10 uptime: 97.8% compliance: 100% checks08-11 uptime: 98.9% compliance: 100% checks08-12 uptime: 99.2% compliance: 100% checks08-13 uptime: 98.6% compliance: 100% checks08-14 uptime: 98.6% compliance: 100% checks08-15 uptime: 98.9% compliance: 100% checks08-16 uptime: 99.0% compliance: 100% checks08-17 uptime: 99.2% compliance: 100% checks08-18 uptime: 99.3% compliance: 100% checks08-19 uptime: 99.2% compliance: 100% checks08-20 uptime: 99.2% compliance: 100% checks08-21 uptime: 99.2% compliance: 100% checks08-22 uptime: 99.3% compliance: 100% checks08-23 uptime: 99.3% compliance: 100% checks08-24 uptime: 99.3% compliance: 100% checks08-25 uptime: 99.3% compliance: 100% checks08-26 uptime: 99.3% compliance: 100% checks08-27 uptime: 99.3% compliance: 100% checks08-28 uptime: 99.4% compliance: 100% checks08-29 uptime: 99.4% compliance: 100% checks08-30 uptime: 99.4% compliance: 100% checks08-31 uptime: 99.4% compliance: 100% checks09-01 uptime: 99.5% compliance: 100% checks09-02 uptime: 99.5% compliance: 100% checks09-03 uptime: 99.5% compliance: 100% checks09-04 uptime: 99.4% compliance: 100% checks09-05 uptime: 99.5% compliance: 100% checks09-06 uptime: 99.5% compliance: 100% checks09-07 uptime: 99.5% compliance: 100% checks09-08 uptime: 99.5% compliance: 100% checks09-09 uptime: 99.6% compliance: 100% checks09-10 uptime: 99.6% compliance: 100% checks09-11 uptime: 99.6% compliance: 100% checks09-12 uptime: 99.7% compliance: 100% checks09-13 uptime: 99.7% compliance: 100% checks09-14 uptime: 99.7% compliance: 100% checks09-15 uptime: 99.7% compliance: 100% checks09-16 uptime: 99.7% compliance: 100% checks09-17 uptime: 99.8% compliance: 100% checks09-18 uptime: 99.8% compliance: 100% checks09-19 uptime: 99.8% compliance: 100% checks09-20 uptime: 99.8% compliance: 100% checks09-21 uptime: 99.8% compliance: 100% checks09-22 uptime: 99.9% compliance: 100% checks09-23 uptime: 99.9% compliance: 100% checks09-24 uptime: 99.9% compliance: 100% checks09-25 uptime: 99.9% compliance: 100% checksuptimecompliance08-0909-25

checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression

PILLARS OVER TIME (measured)
price percentile in Data
site signals present (of 6)

Measured site and economics pillars from the assessment history, so the latest value shown elsewhere on this page reads as a point on a trend rather than a permanent state.

VOLUME (on-chain settlement, USD)
08-08 · $0.0208-09 · $0.1308-10 · $0.0108-12 · $0.0108-13 · $0.0008-16 · $0.0008-24 · $0.0008-25 · $0.0009-01 · $0.0109-02 · $0.0809-08 · $0.0109-10 · $0.0109-11 · $0.0109-12 · $0.0009-13 · $0.0009-14 · $0.0009-17 · $0.0009-22 · $0.0009-23 · $0.00peak $0.1308-0809-23
DISTINCT BUYERS
08-08 · 2 buyers08-09 · 2 buyers08-10 · 1 buyer08-12 · 1 buyer08-13 · 2 buyers08-16 · 1 buyer08-24 · 1 buyer08-25 · 1 buyer09-01 · 1 buyer09-02 · 1 buyer09-08 · 1 buyer09-10 · 2 buyers09-11 · 4 buyers09-12 · 1 buyer09-13 · 1 buyer09-14 · 1 buyer09-17 · 2 buyers09-22 · 1 buyer09-23 · 1 buyerpeak 4 buyers08-0809-23

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-09-25 · last up 2026-09-25

  • 402 payload captured
  • accepts[] array present
  • payTo address recoverable
  • payTo at accepts[0].payTo (conformant shape)
  • payTo is a valid on-chain address
  • atomic price declared
  • atomic price in a sane range
  • asset (token) address declared
  • network resolves to CAIP-2
  • payment scheme declared
  • served over HTTPS
  • declares the current x402 version (2)
  • EIP-712 domain parameters present on every EVM entry
  • x402 v2 envelope delivered in the payment-required header

SITE PILLARS

  • homepage reachable
  • openapi doc
  • pricing page
  • llms.txt
  • robots.txt
  • terms page
recent checks (18) live · click to expand
TIME STATUS RESP CAUSE
● OK 353ms
● OK 198ms
● OK 258ms
● OK 180ms
● OK 338ms
● OK 456ms
● OK 294ms
● OK 81ms
● OK 139ms
● OK 248ms
● OK 158ms
● OK 262ms
● OK 187ms
● OK 206ms
● OK 265ms
● OK 237ms
● OK 326ms
● OK 191ms
18 of 2,704 checks · live count

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