x402 merchant

agent402.tools

Name: agent402.tools on x402: dated readings
Creator: Sato Hub
License: https://creativecommons.org/licenses/by/4.0/

Developer tools API on Base, Arbitrum, Avalanche, Celo, Monad, Optimism, Polygon and Sei, paid per request with x402.

Endpoints4,853
Price per requestfrom $0.001
Outside payers · 7d99
Answer 4020 of 8

Overview

as of 2026-10-08

Seller wallet: 0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0
Chains: BaseArbitrumAvalancheCeloMonadOptimismPolygonSei
Hosts: agent402.tools
Categories: Developer tools1,088Market data872Onchain data704Other577AI models424Web data296Media272Identity240Search144Agents124Security96Commerce16
First seen: 2026-10-05 · last seen 2026-10-08

What we observed

Paid by 99 outside payers · 7d2026-10-08No 402 answer2026-09-19Not claimed

See the readings

Endpoints

4,853 registered

https://agent402.tools/api/sql-cert-verify
Verify an Ed25519 execution certificate against the exact SQL statement you are about to run - the gate your database layer calls before it obeys an agent. Checks the signature, the certificate version, the expiry, and …
OptimismDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/sql-guard
Review a SQL statement before running it against production: a pass / warn / block verdict naming concrete risks (unbounded UPDATE or DELETE, tautological WHERE, DROP, TRUNCATE, statement stacking, privilege changes, ca…
PolygonDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/sql-guard
Review a SQL statement before running it against production: a pass / warn / block verdict naming concrete risks (unbounded UPDATE or DELETE, tautological WHERE, DROP, TRUNCATE, statement stacking, privilege changes, ca…
MonadDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/sql-guard
Review a SQL statement before running it against production: a pass / warn / block verdict naming concrete risks (unbounded UPDATE or DELETE, tautological WHERE, DROP, TRUNCATE, statement stacking, privilege changes, ca…
CeloDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/sql-guard
Review a SQL statement before running it against production: a pass / warn / block verdict naming concrete risks (unbounded UPDATE or DELETE, tautological WHERE, DROP, TRUNCATE, statement stacking, privilege changes, ca…
SeiDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/sql-guard
Review a SQL statement before running it against production: a pass / warn / block verdict naming concrete risks (unbounded UPDATE or DELETE, tautological WHERE, DROP, TRUNCATE, statement stacking, privilege changes, ca…
AvalancheDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/sql-guard
Review a SQL statement before running it against production: a pass / warn / block verdict naming concrete risks (unbounded UPDATE or DELETE, tautological WHERE, DROP, TRUNCATE, statement stacking, privilege changes, ca…
ArbitrumDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/sql-guard
Review a SQL statement before running it against production: a pass / warn / block verdict naming concrete risks (unbounded UPDATE or DELETE, tautological WHERE, DROP, TRUNCATE, statement stacking, privilege changes, ca…
OptimismDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/srt-convert
Convert subtitles between SRT, WebVTT, plain text, and JSON cues. Send SRT or VTT text (auto-detected) - or a JSON cues array [{start,end,text}] with times in ms - and the target format. Deterministic, pure CPU.
SeiDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/srt-convert
Convert subtitles between SRT, WebVTT, plain text, and JSON cues. Send SRT or VTT text (auto-detected) - or a JSON cues array [{start,end,text}] with times in ms - and the target format. Deterministic, pure CPU.
OptimismDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/srt-convert
Convert subtitles between SRT, WebVTT, plain text, and JSON cues. Send SRT or VTT text (auto-detected) - or a JSON cues array [{start,end,text}] with times in ms - and the target format. Deterministic, pure CPU.
ArbitrumDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/srt-convert
Convert subtitles between SRT, WebVTT, plain text, and JSON cues. Send SRT or VTT text (auto-detected) - or a JSON cues array [{start,end,text}] with times in ms - and the target format. Deterministic, pure CPU.
CeloDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/srt-convert
Convert subtitles between SRT, WebVTT, plain text, and JSON cues. Send SRT or VTT text (auto-detected) - or a JSON cues array [{start,end,text}] with times in ms - and the target format. Deterministic, pure CPU.
AvalancheDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/srt-convert
Convert subtitles between SRT, WebVTT, plain text, and JSON cues. Send SRT or VTT text (auto-detected) - or a JSON cues array [{start,end,text}] with times in ms - and the target format. Deterministic, pure CPU.
MonadDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/srt-convert
Convert subtitles between SRT, WebVTT, plain text, and JSON cues. Send SRT or VTT text (auto-detected) - or a JSON cues array [{start,end,text}] with times in ms - and the target format. Deterministic, pure CPU.
PolygonDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/stablecoin-peg
Live $1-peg deviation for the top USD stablecoins (USDT, USDC, USDS, DAI, USDe, PYUSD, USDD, TUSD, FDUSD by default, or pass your own list): current price, deviation in basis points, 24h high/low, worst 24h deviation, m…
ArbitrumOnchain data
n/a/ request
2026-10-06
https://agent402.tools/api/stablecoin-peg
Live $1-peg deviation for the top USD stablecoins (USDT, USDC, USDS, DAI, USDe, PYUSD, USDD, TUSD, FDUSD by default, or pass your own list): current price, deviation in basis points, 24h high/low, worst 24h deviation, m…
PolygonOnchain data
n/a/ request
2026-10-06
https://agent402.tools/api/stablecoin-peg
Live $1-peg deviation for the top USD stablecoins (USDT, USDC, USDS, DAI, USDe, PYUSD, USDD, TUSD, FDUSD by default, or pass your own list): current price, deviation in basis points, 24h high/low, worst 24h deviation, m…
CeloOnchain data
n/a/ request
2026-10-06
https://agent402.tools/api/stablecoin-peg
Live $1-peg deviation for the top USD stablecoins (USDT, USDC, USDS, DAI, USDe, PYUSD, USDD, TUSD, FDUSD by default, or pass your own list): current price, deviation in basis points, 24h high/low, worst 24h deviation, m…
MonadOnchain data
n/a/ request
2026-10-06
https://agent402.tools/api/stablecoin-peg
Live $1-peg deviation for the top USD stablecoins (USDT, USDC, USDS, DAI, USDe, PYUSD, USDD, TUSD, FDUSD by default, or pass your own list): current price, deviation in basis points, 24h high/low, worst 24h deviation, m…
SeiOnchain data
n/a/ request
2026-10-06
https://agent402.tools/api/stablecoin-peg
Live $1-peg deviation for the top USD stablecoins (USDT, USDC, USDS, DAI, USDe, PYUSD, USDD, TUSD, FDUSD by default, or pass your own list): current price, deviation in basis points, 24h high/low, worst 24h deviation, m…
OptimismOnchain data
n/a/ request
2026-10-06
https://agent402.tools/api/stablecoin-peg
Live $1-peg deviation for the top USD stablecoins (USDT, USDC, USDS, DAI, USDe, PYUSD, USDD, TUSD, FDUSD by default, or pass your own list): current price, deviation in basis points, 24h high/low, worst 24h deviation, m…
AvalancheOnchain data
n/a/ request
2026-10-06
https://agent402.tools/api/stablecoin-supply-history
Daily total stablecoin supply in USD over time, for all chains or one chain, per peg currency, with a window summary. Use it when an agent wants stablecoin supply as a liquidity or risk-appetite signal or needs the hist…
ArbitrumOnchain data
n/a/ request
2026-10-06
https://agent402.tools/api/stablecoin-supply-history
Daily total stablecoin supply in USD over time, for all chains or one chain, per peg currency, with a window summary. Use it when an agent wants stablecoin supply as a liquidity or risk-appetite signal or needs the hist…
MonadOnchain data
n/a/ request
2026-10-06
https://agent402.tools/api/stablecoin-supply-history
Daily total stablecoin supply in USD over time, for all chains or one chain, per peg currency, with a window summary. Use it when an agent wants stablecoin supply as a liquidity or risk-appetite signal or needs the hist…
AvalancheOnchain data
n/a/ request
2026-10-06
https://agent402.tools/api/stablecoin-supply-history
Daily total stablecoin supply in USD over time, for all chains or one chain, per peg currency, with a window summary. Use it when an agent wants stablecoin supply as a liquidity or risk-appetite signal or needs the hist…
CeloOnchain data
n/a/ request
2026-10-06
https://agent402.tools/api/stablecoin-supply-history
Daily total stablecoin supply in USD over time, for all chains or one chain, per peg currency, with a window summary. Use it when an agent wants stablecoin supply as a liquidity or risk-appetite signal or needs the hist…
OptimismOnchain data
n/a/ request
2026-10-06
https://agent402.tools/api/stablecoin-supply-history
Daily total stablecoin supply in USD over time, for all chains or one chain, per peg currency, with a window summary. Use it when an agent wants stablecoin supply as a liquidity or risk-appetite signal or needs the hist…
PolygonOnchain data
n/a/ request
2026-10-06
https://agent402.tools/api/stablecoin-supply-history
Daily total stablecoin supply in USD over time, for all chains or one chain, per peg currency, with a window summary. Use it when an agent wants stablecoin supply as a liquidity or risk-appetite signal or needs the hist…
SeiOnchain data
n/a/ request
2026-10-06
https://agent402.tools/api/stablecoins
Stablecoins ranked by circulating supply: peg currency and mechanism, price and deviation from peg, supply in peg units and USD, 1d, 7d and 30d change and circulation per chain. Use it when an agent is checking a peg, s…
MonadOnchain data
n/a/ request
2026-10-08
https://agent402.tools/api/stablecoins
Stablecoins ranked by circulating supply: peg currency and mechanism, price and deviation from peg, supply in peg units and USD, 1d, 7d and 30d change and circulation per chain. Use it when an agent is checking a peg, s…
CeloOnchain data
n/a/ request
2026-10-08
https://agent402.tools/api/stablecoins
Stablecoins ranked by circulating supply: peg currency and mechanism, price and deviation from peg, supply in peg units and USD, 1d, 7d and 30d change and circulation per chain. Use it when an agent is checking a peg, s…
ArbitrumOnchain data
n/a/ request
2026-10-08
https://agent402.tools/api/stablecoins
Stablecoins ranked by circulating supply: peg currency and mechanism, price and deviation from peg, supply in peg units and USD, 1d, 7d and 30d change and circulation per chain. Use it when an agent is checking a peg, s…
OptimismOnchain data
n/a/ request
2026-10-08
https://agent402.tools/api/stablecoins
Stablecoins ranked by circulating supply: peg currency and mechanism, price and deviation from peg, supply in peg units and USD, 1d, 7d and 30d change and circulation per chain. Use it when an agent is checking a peg, s…
AvalancheOnchain data
n/a/ request
2026-10-08
https://agent402.tools/api/stablecoins
Stablecoins ranked by circulating supply: peg currency and mechanism, price and deviation from peg, supply in peg units and USD, 1d, 7d and 30d change and circulation per chain. Use it when an agent is checking a peg, s…
SeiOnchain data
n/a/ request
2026-10-08
https://agent402.tools/api/stablecoins
Stablecoins ranked by circulating supply: peg currency and mechanism, price and deviation from peg, supply in peg units and USD, 1d, 7d and 30d change and circulation per chain. Use it when an agent is checking a peg, s…
PolygonOnchain data
n/a/ request
2026-10-08
https://agent402.tools/api/stats
Descriptive statistics for an array of numbers: count, sum, mean, median, mode, min, max, range, variance, stddev, and percentiles.
MonadDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/stats
Descriptive statistics for an array of numbers: count, sum, mean, median, mode, min, max, range, variance, stddev, and percentiles.
AvalancheDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/stats
Descriptive statistics for an array of numbers: count, sum, mean, median, mode, min, max, range, variance, stddev, and percentiles.
OptimismDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/stats
Descriptive statistics for an array of numbers: count, sum, mean, median, mode, min, max, range, variance, stddev, and percentiles.
CeloDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/stats
Descriptive statistics for an array of numbers: count, sum, mean, median, mode, min, max, range, variance, stddev, and percentiles.
SeiDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/stats
Descriptive statistics for an array of numbers: count, sum, mean, median, mode, min, max, range, variance, stddev, and percentiles.
PolygonDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/stats
Descriptive statistics for an array of numbers: count, sum, mean, median, mode, min, max, range, variance, stddev, and percentiles.
ArbitrumDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/stats-summary
Compute the full descriptive-stats panel for an array of numbers in one call: count, sum, mean, median, mode, stddev (sample), variance, min, max, range, q1, q3, IQR. Beats calling 12 separate tools when you already hav…
CeloDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/stats-summary
Compute the full descriptive-stats panel for an array of numbers in one call: count, sum, mean, median, mode, stddev (sample), variance, min, max, range, q1, q3, IQR. Beats calling 12 separate tools when you already hav…
OptimismDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/stats-summary
Compute the full descriptive-stats panel for an array of numbers in one call: count, sum, mean, median, mode, stddev (sample), variance, min, max, range, q1, q3, IQR. Beats calling 12 separate tools when you already hav…
MonadDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/stats-summary
Compute the full descriptive-stats panel for an array of numbers in one call: count, sum, mean, median, mode, stddev (sample), variance, min, max, range, q1, q3, IQR. Beats calling 12 separate tools when you already hav…
ArbitrumDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/stats-summary
Compute the full descriptive-stats panel for an array of numbers in one call: count, sum, mean, median, mode, stddev (sample), variance, min, max, range, q1, q3, IQR. Beats calling 12 separate tools when you already hav…
AvalancheDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/stats-summary
Compute the full descriptive-stats panel for an array of numbers in one call: count, sum, mean, median, mode, stddev (sample), variance, min, max, range, q1, q3, IQR. Beats calling 12 separate tools when you already hav…
PolygonDeveloper tools
n/a/ request
2026-09-30
https://agent402.tools/api/stats-summary
Compute the full descriptive-stats panel for an array of numbers in one call: count, sum, mean, median, mode, stddev (sample), variance, min, max, range, q1, q3, IQR. Beats calling 12 separate tools when you already hav…
SeiDeveloper tools
n/a/ request
2026-09-30

Evidence

as of 2026-10-08

Answers HTTP 402

0 of 8

0 of 8 probed endpoints answered HTTP 402 with a parseable payment payload

checked 2026-09-19

x402-style payments, last 7 days (Base)

99outside payers

2801 x402-style payments from 99 distinct payers, $52.07 USDC in the last 7 days (Base, exact read)

window ended 2026-10-08

Payments: 2,801
Payers: 99
USDC: 52.07

All USDC received at this payout address: $52.08 (includes payments that are not x402)

Reading: x402-style payments to this payout address on Base, exact read of the 7 days to 2026-10-08, every block of the window: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's `exact` scheme uses. Some non-x402 gasless sends use it too; Sato Hub's own payer wallets are left out

By chain

Chain	Seller wallet	Endpoints	Answers 402	x402-style payments
Base	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	604	0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19	2801 x402-style payments from 99 distinct payers, $52.07 USDC in the last 7 days (Base, exact read)
Arbitrum	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	607	0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19	unknown. not measured on this chain yet
Avalanche	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	607	0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19	unknown. not measured on this chain yet
Celo	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	607	0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19	unknown. not measured on this chain yet
Monad	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	607	0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19	unknown. not measured on this chain yet
Optimism	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	607	0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19	unknown. not measured on this chain yet
Polygon	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	607	0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19	unknown. not measured on this chain yet
Sei	0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0	607	0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19	unknown. not measured on this chain yet

One seller wallet, each chain read on its own. We never send a payment, so we never observe what a paid call returns. Unknown means we hold no reading, not that anything failed.

Pricing

Lowest

$0.001

per request, as registeredas of 2026-10-08

Highest

$2.00

per request, as registeredas of 2026-10-08

The price each endpoint registered in the x402 catalogue. A listed price is a registration, not an observed charge.

Claim this merchant

Sign a message from the payout address 0xabf4fa…e2a9d0 to claim this page or download its payment ledger. Claiming proves control of the payout key. It says nothing about the service behind the address, and it does not change how this merchant is ranked. No email, no account: the signature is the whole credential, and signing a message costs no gas and moves nothing.

Data CC-BY-4.0, attribution: data by satohub.ai. Data: x402-list.com (CC BY 4.0). Data as of 2026-10-08. Appearing here is not an endorsement. Check an endpoint with the doctor.