agent402.tools
Developer tools API on Base, Arbitrum, Avalanche, Celo, Monad, Optimism, Polygon and Sei, paid per request with x402.
- Endpoints4,845
- Price per requestfrom $0.001
- Outside payers · 7dn/a
- Answer 4020 of 8
Overview
- Seller wallet
- 0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0
- Chains
- BaseArbitrumAvalancheCeloMonadOptimismPolygonSei
- Hosts
- agent402.tools
- CategoriesCategoriesAssigned automatically from the seller’s own listing text. A filter hint, not a claim about the service.
- Developer tools1,088Market data872Onchain data704Other577AI models416Web data296Media272Identity240Search144Agents124Security96Commerce16
- First seen
- 2026-10-05 · last seen 2026-10-07
Endpoints
EndpointsDescriptions are the seller's own words from the catalogue and are not checked by us. A listed price is a registration, not an observed charge.https://agent402.tools/api/place-search
Search OpenStreetMap for places by keyword, optionally restricted to a bounding box or country. Returns ranked hits with coordinates and place type - e.g. coffee shops in a city, airports in a region.
CeloSearchn/a/ request
2026-09-30
https://agent402.tools/api/place-search
Search OpenStreetMap for places by keyword, optionally restricted to a bounding box or country. Returns ranked hits with coordinates and place type - e.g. coffee shops in a city, airports in a region.
OptimismSearchn/a/ request
2026-09-30
https://agent402.tools/api/place-search
Search OpenStreetMap for places by keyword, optionally restricted to a bounding box or country. Returns ranked hits with coordinates and place type - e.g. coffee shops in a city, airports in a region.
SeiSearchn/a/ request
2026-09-30
https://agent402.tools/api/place-search
Search OpenStreetMap for places by keyword, optionally restricted to a bounding box or country. Returns ranked hits with coordinates and place type - e.g. coffee shops in a city, airports in a region.
MonadSearchn/a/ request
2026-09-30
https://agent402.tools/api/place-search
Search OpenStreetMap for places by keyword, optionally restricted to a bounding box or country. Returns ranked hits with coordinates and place type - e.g. coffee shops in a city, airports in a region.
PolygonSearchn/a/ request
2026-09-30
https://agent402.tools/api/place-search
Search OpenStreetMap for places by keyword, optionally restricted to a bounding box or country. Returns ranked hits with coordinates and place type - e.g. coffee shops in a city, airports in a region.
AvalancheSearchn/a/ request
2026-09-30
https://agent402.tools/api/price-coingecko
Live spot price for up to 25 coins by CoinGecko id, one row per id in the order asked: prices[] of {id, price, change24h, lastUpdated}. Identify coins by their CoinGecko ID slug (bitcoin, ethereum, solana, usd-coin, ...…
OptimismMarket datan/a/ request
2026-09-30
https://agent402.tools/api/price-coingecko
Live spot price for up to 25 coins by CoinGecko id, one row per id in the order asked: prices[] of {id, price, change24h, lastUpdated}. Identify coins by their CoinGecko ID slug (bitcoin, ethereum, solana, usd-coin, ...…
ArbitrumMarket datan/a/ request
2026-09-30
https://agent402.tools/api/price-coingecko
Live spot price for up to 25 coins by CoinGecko id, one row per id in the order asked: prices[] of {id, price, change24h, lastUpdated}. Identify coins by their CoinGecko ID slug (bitcoin, ethereum, solana, usd-coin, ...…
CeloMarket datan/a/ request
2026-09-30
https://agent402.tools/api/price-coingecko
Live spot price for up to 25 coins by CoinGecko id, one row per id in the order asked: prices[] of {id, price, change24h, lastUpdated}. Identify coins by their CoinGecko ID slug (bitcoin, ethereum, solana, usd-coin, ...…
AvalancheMarket datan/a/ request
2026-09-30
https://agent402.tools/api/price-coingecko
Live spot price for up to 25 coins by CoinGecko id, one row per id in the order asked: prices[] of {id, price, change24h, lastUpdated}. Identify coins by their CoinGecko ID slug (bitcoin, ethereum, solana, usd-coin, ...…
MonadMarket datan/a/ request
2026-09-30
https://agent402.tools/api/price-coingecko
Live spot price for up to 25 coins by CoinGecko id, one row per id in the order asked: prices[] of {id, price, change24h, lastUpdated}. Identify coins by their CoinGecko ID slug (bitcoin, ethereum, solana, usd-coin, ...…
PolygonMarket datan/a/ request
2026-09-30
https://agent402.tools/api/price-coingecko
Live spot price for up to 25 coins by CoinGecko id, one row per id in the order asked: prices[] of {id, price, change24h, lastUpdated}. Identify coins by their CoinGecko ID slug (bitcoin, ethereum, solana, usd-coin, ...…
SeiMarket datan/a/ request
2026-09-30
https://agent402.tools/api/public-holidays
Public holidays for a country and year via Nager.Date (keyless, 100+ countries): date, local name, English name, nationwide flag, and holiday types. Pairs with /api/business-days and /api/country-info.
AvalancheOthern/a/ request
2026-09-30
https://agent402.tools/api/public-holidays
Public holidays for a country and year via Nager.Date (keyless, 100+ countries): date, local name, English name, nationwide flag, and holiday types. Pairs with /api/business-days and /api/country-info.
MonadOthern/a/ request
2026-09-30
https://agent402.tools/api/public-holidays
Public holidays for a country and year via Nager.Date (keyless, 100+ countries): date, local name, English name, nationwide flag, and holiday types. Pairs with /api/business-days and /api/country-info.
ArbitrumOthern/a/ request
2026-09-30
https://agent402.tools/api/public-holidays
Public holidays for a country and year via Nager.Date (keyless, 100+ countries): date, local name, English name, nationwide flag, and holiday types. Pairs with /api/business-days and /api/country-info.
PolygonOthern/a/ request
2026-09-30
https://agent402.tools/api/public-holidays
Public holidays for a country and year via Nager.Date (keyless, 100+ countries): date, local name, English name, nationwide flag, and holiday types. Pairs with /api/business-days and /api/country-info.
CeloOthern/a/ request
2026-09-30
https://agent402.tools/api/public-holidays
Public holidays for a country and year via Nager.Date (keyless, 100+ countries): date, local name, English name, nationwide flag, and holiday types. Pairs with /api/business-days and /api/country-info.
SeiOthern/a/ request
2026-09-30
https://agent402.tools/api/public-holidays
Public holidays for a country and year via Nager.Date (keyless, 100+ countries): date, local name, English name, nationwide flag, and holiday types. Pairs with /api/business-days and /api/country-info.
OptimismOthern/a/ request
2026-09-30
https://agent402.tools/api/qr
Generate a QR code PNG from any text or URL.
AvalancheMedian/a/ request
2026-10-05
https://agent402.tools/api/qr
Generate a QR code PNG from any text or URL.
MonadMedian/a/ request
2026-10-05
https://agent402.tools/api/qr
Generate a QR code PNG from any text or URL.
SeiMedian/a/ request
2026-10-05
https://agent402.tools/api/qr
Generate a QR code PNG from any text or URL.
OptimismMedian/a/ request
2026-10-05
https://agent402.tools/api/qr
Generate a QR code PNG from any text or URL.
CeloMedian/a/ request
2026-10-05
https://agent402.tools/api/qr
Generate a QR code PNG from any text or URL.
ArbitrumMedian/a/ request
2026-10-05
https://agent402.tools/api/qr
Generate a QR code PNG from any text or URL.
PolygonMedian/a/ request
2026-10-05
https://agent402.tools/api/querystring
Parse a URL query string into an object, or build one from an object. mode: parse (default) | build.
OptimismDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/querystring
Parse a URL query string into an object, or build one from an object. mode: parse (default) | build.
CeloDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/querystring
Parse a URL query string into an object, or build one from an object. mode: parse (default) | build.
MonadDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/querystring
Parse a URL query string into an object, or build one from an object. mode: parse (default) | build.
SeiDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/querystring
Parse a URL query string into an object, or build one from an object. mode: parse (default) | build.
ArbitrumDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/querystring
Parse a URL query string into an object, or build one from an object. mode: parse (default) | build.
PolygonDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/querystring
Parse a URL query string into an object, or build one from an object. mode: parse (default) | build.
AvalancheDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/random
Cryptographically secure randomness: N random bytes as hex, a uniform integer in a range, or a batch of up to 100 values in one call. Use it when an agent needs unpredictable values for nonces, sampling, shuffles or tes…
ArbitrumDeveloper toolsn/a/ request
2026-10-05
https://agent402.tools/api/random
Cryptographically secure randomness: N random bytes as hex, a uniform integer in a range, or a batch of up to 100 values in one call. Use it when an agent needs unpredictable values for nonces, sampling, shuffles or tes…
OptimismDeveloper toolsn/a/ request
2026-10-05
https://agent402.tools/api/random
Cryptographically secure randomness: N random bytes as hex, a uniform integer in a range, or a batch of up to 100 values in one call. Use it when an agent needs unpredictable values for nonces, sampling, shuffles or tes…
SeiDeveloper toolsn/a/ request
2026-10-05
https://agent402.tools/api/random
Cryptographically secure randomness: N random bytes as hex, a uniform integer in a range, or a batch of up to 100 values in one call. Use it when an agent needs unpredictable values for nonces, sampling, shuffles or tes…
PolygonDeveloper toolsn/a/ request
2026-10-05
https://agent402.tools/api/random
Cryptographically secure randomness: N random bytes as hex, a uniform integer in a range, or a batch of up to 100 values in one call. Use it when an agent needs unpredictable values for nonces, sampling, shuffles or tes…
CeloDeveloper toolsn/a/ request
2026-10-05
https://agent402.tools/api/random
Cryptographically secure randomness: N random bytes as hex, a uniform integer in a range, or a batch of up to 100 values in one call. Use it when an agent needs unpredictable values for nonces, sampling, shuffles or tes…
AvalancheDeveloper toolsn/a/ request
2026-10-05
https://agent402.tools/api/random
Cryptographically secure randomness: N random bytes as hex, a uniform integer in a range, or a batch of up to 100 values in one call. Use it when an agent needs unpredictable values for nonces, sampling, shuffles or tes…
MonadDeveloper toolsn/a/ request
2026-10-05
https://agent402.tools/api/readability
Flesch Reading Ease score and Flesch–Kincaid grade level for English text, plus word/sentence/syllable counts.
PolygonDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/readability
Flesch Reading Ease score and Flesch–Kincaid grade level for English text, plus word/sentence/syllable counts.
CeloDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/readability
Flesch Reading Ease score and Flesch–Kincaid grade level for English text, plus word/sentence/syllable counts.
ArbitrumDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/readability
Flesch Reading Ease score and Flesch–Kincaid grade level for English text, plus word/sentence/syllable counts.
OptimismDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/readability
Flesch Reading Ease score and Flesch–Kincaid grade level for English text, plus word/sentence/syllable counts.
SeiDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/readability
Flesch Reading Ease score and Flesch–Kincaid grade level for English text, plus word/sentence/syllable counts.
AvalancheDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/readability
Flesch Reading Ease score and Flesch–Kincaid grade level for English text, plus word/sentence/syllable counts.
MonadDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/readability-score
Compute Flesch-Kincaid Grade Level, Flesch Reading Ease, Gunning Fog Index, and Automated Readability Index from text. Returns all 4 scores plus word, sentence, and syllable counts.
MonadDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/readability-score
Compute Flesch-Kincaid Grade Level, Flesch Reading Ease, Gunning Fog Index, and Automated Readability Index from text. Returns all 4 scores plus word, sentence, and syllable counts.
ArbitrumDeveloper toolsn/a/ request
2026-09-30
Evidence
Answers HTTP 402
Answers HTTP 402Method: one unpaid request per listed endpoint. A 402 with a payment payload a client could parse counts. Nothing is paid.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)
x402-style paymentsMethod: 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.unknown
unknown. the 7-day payments read on Base did not complete (ranges over 10000 blocks are not supported on free plan)
window ended 2026-10-07
By chain
| Chain | Seller wallet | Endpoints | Answers 402 | x402-style payments |
|---|---|---|---|---|
| Base | 0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0 | 603 | 0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19 | unknown. the 7-day payments read on Base did not complete (ranges over 10000 blocks are not supported on free plan) |
| Arbitrum | 0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0 | 606 | 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 | 606 | 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 | 606 | 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 | 606 | 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 | 606 | 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 | 606 | 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 | 606 | 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
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 2026-10-07. Appearing here is not an endorsement. Check an endpoint with the doctor.