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 2026-10-06
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/coins-list
The complete list of tracked coins (~18k) as {id, symbol, name}, paged: `page` + `perPage` (1-500, default 250). `includePlatforms: true` adds each coin's contract address per platform; `platform` (e.g. base, solana, et…
AvalancheOthern/a/ request
2026-09-30
https://agent402.tools/api/college-lookup
Look up US colleges by name via the Dept. of Education College Scorecard: state, out-of-state tuition, overall admission rate, and undergraduate size. Live gov data.
SeiOthern/a/ request
2026-09-30
https://agent402.tools/api/college-lookup
Look up US colleges by name via the Dept. of Education College Scorecard: state, out-of-state tuition, overall admission rate, and undergraduate size. Live gov data.
OptimismOthern/a/ request
2026-09-30
https://agent402.tools/api/college-lookup
Look up US colleges by name via the Dept. of Education College Scorecard: state, out-of-state tuition, overall admission rate, and undergraduate size. Live gov data.
AvalancheOthern/a/ request
2026-09-30
https://agent402.tools/api/college-lookup
Look up US colleges by name via the Dept. of Education College Scorecard: state, out-of-state tuition, overall admission rate, and undergraduate size. Live gov data.
MonadOthern/a/ request
2026-09-30
https://agent402.tools/api/college-lookup
Look up US colleges by name via the Dept. of Education College Scorecard: state, out-of-state tuition, overall admission rate, and undergraduate size. Live gov data.
ArbitrumOthern/a/ request
2026-09-30
https://agent402.tools/api/college-lookup
Look up US colleges by name via the Dept. of Education College Scorecard: state, out-of-state tuition, overall admission rate, and undergraduate size. Live gov data.
PolygonOthern/a/ request
2026-09-30
https://agent402.tools/api/college-lookup
Look up US colleges by name via the Dept. of Education College Scorecard: state, out-of-state tuition, overall admission rate, and undergraduate size. Live gov data.
CeloOthern/a/ request
2026-09-30
https://agent402.tools/api/color
Convert a color between hex, RGB, and HSL. Accepts "#1a2b3c", "rgb(26,43,60)", or "hsl(210,40%,17%)".
ArbitrumDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/color
Convert a color between hex, RGB, and HSL. Accepts "#1a2b3c", "rgb(26,43,60)", or "hsl(210,40%,17%)".
PolygonDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/color
Convert a color between hex, RGB, and HSL. Accepts "#1a2b3c", "rgb(26,43,60)", or "hsl(210,40%,17%)".
AvalancheDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/color
Convert a color between hex, RGB, and HSL. Accepts "#1a2b3c", "rgb(26,43,60)", or "hsl(210,40%,17%)".
SeiDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/color
Convert a color between hex, RGB, and HSL. Accepts "#1a2b3c", "rgb(26,43,60)", or "hsl(210,40%,17%)".
OptimismDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/color
Convert a color between hex, RGB, and HSL. Accepts "#1a2b3c", "rgb(26,43,60)", or "hsl(210,40%,17%)".
MonadDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/color
Convert a color between hex, RGB, and HSL. Accepts "#1a2b3c", "rgb(26,43,60)", or "hsl(210,40%,17%)".
CeloDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/company-financials
Key financial metrics (Revenue, Net Income, Operating Income, Total Assets, Liabilities, Equity, EPS, Operating Cash Flow) for a US public company in one call. Returns the latest annual and quarterly values from SEC XBR…
CeloMarket datan/a/ request
2026-10-06
https://agent402.tools/api/company-financials
Key financial metrics (Revenue, Net Income, Operating Income, Total Assets, Liabilities, Equity, EPS, Operating Cash Flow) for a US public company in one call. Returns the latest annual and quarterly values from SEC XBR…
OptimismMarket datan/a/ request
2026-10-06
https://agent402.tools/api/company-financials
Key financial metrics (Revenue, Net Income, Operating Income, Total Assets, Liabilities, Equity, EPS, Operating Cash Flow) for a US public company in one call. Returns the latest annual and quarterly values from SEC XBR…
SeiMarket datan/a/ request
2026-10-06
https://agent402.tools/api/company-financials
Key financial metrics (Revenue, Net Income, Operating Income, Total Assets, Liabilities, Equity, EPS, Operating Cash Flow) for a US public company in one call. Returns the latest annual and quarterly values from SEC XBR…
AvalancheMarket datan/a/ request
2026-10-06
https://agent402.tools/api/company-financials
Key financial metrics (Revenue, Net Income, Operating Income, Total Assets, Liabilities, Equity, EPS, Operating Cash Flow) for a US public company in one call. Returns the latest annual and quarterly values from SEC XBR…
MonadMarket datan/a/ request
2026-10-06
https://agent402.tools/api/company-financials
Key financial metrics (Revenue, Net Income, Operating Income, Total Assets, Liabilities, Equity, EPS, Operating Cash Flow) for a US public company in one call. Returns the latest annual and quarterly values from SEC XBR…
ArbitrumMarket datan/a/ request
2026-10-06
https://agent402.tools/api/company-financials
Key financial metrics (Revenue, Net Income, Operating Income, Total Assets, Liabilities, Equity, EPS, Operating Cash Flow) for a US public company in one call. Returns the latest annual and quarterly values from SEC XBR…
PolygonMarket datan/a/ request
2026-10-06
https://agent402.tools/api/compound-interest
Compute future value of a principal under compound interest. Returns future value, total interest earned, and the effective annual rate (APY) given the compounding frequency. Matches Excel's FV(rate, nper, 0, -principal…
OptimismDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/compound-interest
Compute future value of a principal under compound interest. Returns future value, total interest earned, and the effective annual rate (APY) given the compounding frequency. Matches Excel's FV(rate, nper, 0, -principal…
CeloDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/compound-interest
Compute future value of a principal under compound interest. Returns future value, total interest earned, and the effective annual rate (APY) given the compounding frequency. Matches Excel's FV(rate, nper, 0, -principal…
PolygonDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/compound-interest
Compute future value of a principal under compound interest. Returns future value, total interest earned, and the effective annual rate (APY) given the compounding frequency. Matches Excel's FV(rate, nper, 0, -principal…
MonadDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/compound-interest
Compute future value of a principal under compound interest. Returns future value, total interest earned, and the effective annual rate (APY) given the compounding frequency. Matches Excel's FV(rate, nper, 0, -principal…
ArbitrumDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/compound-interest
Compute future value of a principal under compound interest. Returns future value, total interest earned, and the effective annual rate (APY) given the compounding frequency. Matches Excel's FV(rate, nper, 0, -principal…
SeiDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/compound-interest
Compute future value of a principal under compound interest. Returns future value, total interest earned, and the effective annual rate (APY) given the compounding frequency. Matches Excel's FV(rate, nper, 0, -principal…
AvalancheDeveloper toolsn/a/ request
2026-09-30
https://agent402.tools/api/compress-compare
Run the same input through gzip, brotli, and raw deflate at max settings and report each one's output size and ratio. Use this to decide which algorithm to actually use - the answer depends on your content (binary often…
OptimismMedian/a/ request
2026-09-30
https://agent402.tools/api/compress-compare
Run the same input through gzip, brotli, and raw deflate at max settings and report each one's output size and ratio. Use this to decide which algorithm to actually use - the answer depends on your content (binary often…
PolygonMedian/a/ request
2026-09-30
https://agent402.tools/api/compress-compare
Run the same input through gzip, brotli, and raw deflate at max settings and report each one's output size and ratio. Use this to decide which algorithm to actually use - the answer depends on your content (binary often…
MonadMedian/a/ request
2026-09-30
https://agent402.tools/api/compress-compare
Run the same input through gzip, brotli, and raw deflate at max settings and report each one's output size and ratio. Use this to decide which algorithm to actually use - the answer depends on your content (binary often…
SeiMedian/a/ request
2026-09-30
https://agent402.tools/api/compress-compare
Run the same input through gzip, brotli, and raw deflate at max settings and report each one's output size and ratio. Use this to decide which algorithm to actually use - the answer depends on your content (binary often…
CeloMedian/a/ request
2026-09-30
https://agent402.tools/api/compress-compare
Run the same input through gzip, brotli, and raw deflate at max settings and report each one's output size and ratio. Use this to decide which algorithm to actually use - the answer depends on your content (binary often…
ArbitrumMedian/a/ request
2026-09-30
https://agent402.tools/api/compress-compare
Run the same input through gzip, brotli, and raw deflate at max settings and report each one's output size and ratio. Use this to decide which algorithm to actually use - the answer depends on your content (binary often…
AvalancheMedian/a/ request
2026-09-30
https://agent402.tools/api/contract-abi
Fetch the verified ABI for a contract address from Sourcify, plus a ready-to-use list of human-readable function signatures with their 4-byte selectors. Covers 8 EVM mainnets. Unverified contracts return a structured {v…
PolygonOnchain datan/a/ request
2026-09-30
https://agent402.tools/api/contract-abi
Fetch the verified ABI for a contract address from Sourcify, plus a ready-to-use list of human-readable function signatures with their 4-byte selectors. Covers 8 EVM mainnets. Unverified contracts return a structured {v…
ArbitrumOnchain datan/a/ request
2026-09-30
https://agent402.tools/api/contract-abi
Fetch the verified ABI for a contract address from Sourcify, plus a ready-to-use list of human-readable function signatures with their 4-byte selectors. Covers 8 EVM mainnets. Unverified contracts return a structured {v…
MonadOnchain datan/a/ request
2026-09-30
https://agent402.tools/api/contract-abi
Fetch the verified ABI for a contract address from Sourcify, plus a ready-to-use list of human-readable function signatures with their 4-byte selectors. Covers 8 EVM mainnets. Unverified contracts return a structured {v…
AvalancheOnchain datan/a/ request
2026-09-30
https://agent402.tools/api/contract-abi
Fetch the verified ABI for a contract address from Sourcify, plus a ready-to-use list of human-readable function signatures with their 4-byte selectors. Covers 8 EVM mainnets. Unverified contracts return a structured {v…
OptimismOnchain datan/a/ request
2026-09-30
https://agent402.tools/api/contract-abi
Fetch the verified ABI for a contract address from Sourcify, plus a ready-to-use list of human-readable function signatures with their 4-byte selectors. Covers 8 EVM mainnets. Unverified contracts return a structured {v…
CeloOnchain datan/a/ request
2026-09-30
https://agent402.tools/api/contract-abi
Fetch the verified ABI for a contract address from Sourcify, plus a ready-to-use list of human-readable function signatures with their 4-byte selectors. Covers 8 EVM mainnets. Unverified contracts return a structured {v…
SeiOnchain datan/a/ request
2026-09-30
https://agent402.tools/api/contract-code
Is this address a contract, and what code does it hold? Returns isContract, deployed bytecode size, and the keccak-256 hash of the bytecode (stable fingerprint for comparing deployments) on Ethereum, Base, Polygon, Arbi…
OptimismOnchain datan/a/ request
2026-09-30
https://agent402.tools/api/contract-code
Is this address a contract, and what code does it hold? Returns isContract, deployed bytecode size, and the keccak-256 hash of the bytecode (stable fingerprint for comparing deployments) on Ethereum, Base, Polygon, Arbi…
SeiOnchain datan/a/ request
2026-09-30
https://agent402.tools/api/contract-code
Is this address a contract, and what code does it hold? Returns isContract, deployed bytecode size, and the keccak-256 hash of the bytecode (stable fingerprint for comparing deployments) on Ethereum, Base, Polygon, Arbi…
CeloOnchain datan/a/ request
2026-09-30
https://agent402.tools/api/contract-code
Is this address a contract, and what code does it hold? Returns isContract, deployed bytecode size, and the keccak-256 hash of the bytecode (stable fingerprint for comparing deployments) on Ethereum, Base, Polygon, Arbi…
ArbitrumOnchain datan/a/ request
2026-09-30
https://agent402.tools/api/contract-code
Is this address a contract, and what code does it hold? Returns isContract, deployed bytecode size, and the keccak-256 hash of the bytecode (stable fingerprint for comparing deployments) on Ethereum, Base, Polygon, Arbi…
PolygonOnchain datan/a/ request
2026-09-30
https://agent402.tools/api/contract-code
Is this address a contract, and what code does it hold? Returns isContract, deployed bytecode size, and the keccak-256 hash of the bytecode (stable fingerprint for comparing deployments) on Ethereum, Base, Polygon, Arbi…
MonadOnchain datan/a/ request
2026-09-30
https://agent402.tools/api/contract-code
Is this address a contract, and what code does it hold? Returns isContract, deployed bytecode size, and the keccak-256 hash of the bytecode (stable fingerprint for comparing deployments) on Ethereum, Base, Polygon, Arbi…
AvalancheOnchain datan/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 2026-10-06
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 2026-10-06. Appearing here is not an endorsement. Check an endpoint with the doctor.