Sato Hub
x402 merchant

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

as of 2026-10-06
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

What we observed

Payments unknown, unknownNo 402 answer, not observedNot claimed
See the readings

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.
4,845 registered

  • https://agent402.tools/api/demand-radar

    What agents keep asking for that nobody serves yet: aggregated, qualified demand clusters from a live agent-demand board, with caller counts and how long each need has persisted. Use it when a seller or an agent is choo…

    ArbitrumOther

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/demand-radar

    What agents keep asking for that nobody serves yet: aggregated, qualified demand clusters from a live agent-demand board, with caller counts and how long each need has persisted. Use it when a seller or an agent is choo…

    SeiOther

    n/a/ request

    2026-10-06

  • https://agent402.tools/api/device-recalls

    Search FDA medical-device recall / enforcement records (openFDA): recalling firm, classification (Class I/II/III), reason, distribution, and dates. Live FDA data, no key.

    SeiAI models

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/device-recalls

    Search FDA medical-device recall / enforcement records (openFDA): recalling firm, classification (Class I/II/III), reason, distribution, and dates. Live FDA data, no key.

    OptimismAI models

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/device-recalls

    Search FDA medical-device recall / enforcement records (openFDA): recalling firm, classification (Class I/II/III), reason, distribution, and dates. Live FDA data, no key.

    CeloAI models

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/device-recalls

    Search FDA medical-device recall / enforcement records (openFDA): recalling firm, classification (Class I/II/III), reason, distribution, and dates. Live FDA data, no key.

    PolygonAI models

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/device-recalls

    Search FDA medical-device recall / enforcement records (openFDA): recalling firm, classification (Class I/II/III), reason, distribution, and dates. Live FDA data, no key.

    ArbitrumAI models

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/device-recalls

    Search FDA medical-device recall / enforcement records (openFDA): recalling firm, classification (Class I/II/III), reason, distribution, and dates. Live FDA data, no key.

    MonadAI models

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/device-recalls

    Search FDA medical-device recall / enforcement records (openFDA): recalling firm, classification (Class I/II/III), reason, distribution, and dates. Live FDA data, no key.

    AvalancheAI models

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-pair

    Look up the Uniswap V3 pool address for a token pair + fee tier on Ethereum, Base, Polygon, Arbitrum, or Optimism. Pass either order (tokenA/tokenB) - the factory sorts internally. Returns 0x0…0 if no pool has been depl…

    OptimismOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-pair

    Look up the Uniswap V3 pool address for a token pair + fee tier on Ethereum, Base, Polygon, Arbitrum, or Optimism. Pass either order (tokenA/tokenB) - the factory sorts internally. Returns 0x0…0 if no pool has been depl…

    SeiOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-pair

    Look up the Uniswap V3 pool address for a token pair + fee tier on Ethereum, Base, Polygon, Arbitrum, or Optimism. Pass either order (tokenA/tokenB) - the factory sorts internally. Returns 0x0…0 if no pool has been depl…

    AvalancheOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-pair

    Look up the Uniswap V3 pool address for a token pair + fee tier on Ethereum, Base, Polygon, Arbitrum, or Optimism. Pass either order (tokenA/tokenB) - the factory sorts internally. Returns 0x0…0 if no pool has been depl…

    MonadOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-pair

    Look up the Uniswap V3 pool address for a token pair + fee tier on Ethereum, Base, Polygon, Arbitrum, or Optimism. Pass either order (tokenA/tokenB) - the factory sorts internally. Returns 0x0…0 if no pool has been depl…

    PolygonOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-pair

    Look up the Uniswap V3 pool address for a token pair + fee tier on Ethereum, Base, Polygon, Arbitrum, or Optimism. Pass either order (tokenA/tokenB) - the factory sorts internally. Returns 0x0…0 if no pool has been depl…

    CeloOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-pair

    Look up the Uniswap V3 pool address for a token pair + fee tier on Ethereum, Base, Polygon, Arbitrum, or Optimism. Pass either order (tokenA/tokenB) - the factory sorts internally. Returns 0x0…0 if no pool has been depl…

    ArbitrumOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-pool

    Read on-chain state of a Uniswap V3 pool: token0/token1 addresses + decimals, fee tier, current sqrtPriceX96, tick, in-range liquidity, and the decoded human-readable spot price (token1 per token0). One $0.002 call repl…

    PolygonOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-pool

    Read on-chain state of a Uniswap V3 pool: token0/token1 addresses + decimals, fee tier, current sqrtPriceX96, tick, in-range liquidity, and the decoded human-readable spot price (token1 per token0). One $0.002 call repl…

    OptimismOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-pool

    Read on-chain state of a Uniswap V3 pool: token0/token1 addresses + decimals, fee tier, current sqrtPriceX96, tick, in-range liquidity, and the decoded human-readable spot price (token1 per token0). One $0.002 call repl…

    CeloOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-pool

    Read on-chain state of a Uniswap V3 pool: token0/token1 addresses + decimals, fee tier, current sqrtPriceX96, tick, in-range liquidity, and the decoded human-readable spot price (token1 per token0). One $0.002 call repl…

    ArbitrumOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-pool

    Read on-chain state of a Uniswap V3 pool: token0/token1 addresses + decimals, fee tier, current sqrtPriceX96, tick, in-range liquidity, and the decoded human-readable spot price (token1 per token0). One $0.002 call repl…

    MonadOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-pool

    Read on-chain state of a Uniswap V3 pool: token0/token1 addresses + decimals, fee tier, current sqrtPriceX96, tick, in-range liquidity, and the decoded human-readable spot price (token1 per token0). One $0.002 call repl…

    SeiOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-pool

    Read on-chain state of a Uniswap V3 pool: token0/token1 addresses + decimals, fee tier, current sqrtPriceX96, tick, in-range liquidity, and the decoded human-readable spot price (token1 per token0). One $0.002 call repl…

    AvalancheOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-quote

    Spot quote for swapping through a Uniswap V3 pool at the current tick. amountIn is in human units (not wei). zeroForOne=true sends token0 → token1; false sends token1 → token0. Returns amountOut net of the pool's fee ti…

    CeloOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-quote

    Spot quote for swapping through a Uniswap V3 pool at the current tick. amountIn is in human units (not wei). zeroForOne=true sends token0 → token1; false sends token1 → token0. Returns amountOut net of the pool's fee ti…

    OptimismOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-quote

    Spot quote for swapping through a Uniswap V3 pool at the current tick. amountIn is in human units (not wei). zeroForOne=true sends token0 → token1; false sends token1 → token0. Returns amountOut net of the pool's fee ti…

    SeiOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-quote

    Spot quote for swapping through a Uniswap V3 pool at the current tick. amountIn is in human units (not wei). zeroForOne=true sends token0 → token1; false sends token1 → token0. Returns amountOut net of the pool's fee ti…

    AvalancheOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-quote

    Spot quote for swapping through a Uniswap V3 pool at the current tick. amountIn is in human units (not wei). zeroForOne=true sends token0 → token1; false sends token1 → token0. Returns amountOut net of the pool's fee ti…

    MonadOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-quote

    Spot quote for swapping through a Uniswap V3 pool at the current tick. amountIn is in human units (not wei). zeroForOne=true sends token0 → token1; false sends token1 → token0. Returns amountOut net of the pool's fee ti…

    ArbitrumOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-quote

    Spot quote for swapping through a Uniswap V3 pool at the current tick. amountIn is in human units (not wei). zeroForOne=true sends token0 → token1; false sends token1 → token0. Returns amountOut net of the pool's fee ti…

    PolygonOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-top-pools

    Top DEX pools (Uniswap, Sushi, Curve, Aerodrome, etc.) ranked by current TVL - filterable by chain and project. Sourced from DeFiLlama's public Yields API (keyless). Each row carries chain, project slug, symbol pair, TV…

    SeiOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-top-pools

    Top DEX pools (Uniswap, Sushi, Curve, Aerodrome, etc.) ranked by current TVL - filterable by chain and project. Sourced from DeFiLlama's public Yields API (keyless). Each row carries chain, project slug, symbol pair, TV…

    CeloOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-top-pools

    Top DEX pools (Uniswap, Sushi, Curve, Aerodrome, etc.) ranked by current TVL - filterable by chain and project. Sourced from DeFiLlama's public Yields API (keyless). Each row carries chain, project slug, symbol pair, TV…

    OptimismOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-top-pools

    Top DEX pools (Uniswap, Sushi, Curve, Aerodrome, etc.) ranked by current TVL - filterable by chain and project. Sourced from DeFiLlama's public Yields API (keyless). Each row carries chain, project slug, symbol pair, TV…

    AvalancheOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-top-pools

    Top DEX pools (Uniswap, Sushi, Curve, Aerodrome, etc.) ranked by current TVL - filterable by chain and project. Sourced from DeFiLlama's public Yields API (keyless). Each row carries chain, project slug, symbol pair, TV…

    MonadOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-top-pools

    Top DEX pools (Uniswap, Sushi, Curve, Aerodrome, etc.) ranked by current TVL - filterable by chain and project. Sourced from DeFiLlama's public Yields API (keyless). Each row carries chain, project slug, symbol pair, TV…

    ArbitrumOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dex-top-pools

    Top DEX pools (Uniswap, Sushi, Curve, Aerodrome, etc.) ranked by current TVL - filterable by chain and project. Sourced from DeFiLlama's public Yields API (keyless). Each row carries chain, project slug, symbol pair, TV…

    PolygonOnchain data

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dkim-lookup

    Fetch and parse a DKIM public-key record at <selector>._domainkey.<domain> (RFC 6376). Returns the parsed key params (algorithm, length, flags) so you can verify rotation status or key strength. Caller must know the sel…

    OptimismIdentity

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dkim-lookup

    Fetch and parse a DKIM public-key record at <selector>._domainkey.<domain> (RFC 6376). Returns the parsed key params (algorithm, length, flags) so you can verify rotation status or key strength. Caller must know the sel…

    ArbitrumIdentity

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dkim-lookup

    Fetch and parse a DKIM public-key record at <selector>._domainkey.<domain> (RFC 6376). Returns the parsed key params (algorithm, length, flags) so you can verify rotation status or key strength. Caller must know the sel…

    MonadIdentity

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dkim-lookup

    Fetch and parse a DKIM public-key record at <selector>._domainkey.<domain> (RFC 6376). Returns the parsed key params (algorithm, length, flags) so you can verify rotation status or key strength. Caller must know the sel…

    AvalancheIdentity

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dkim-lookup

    Fetch and parse a DKIM public-key record at <selector>._domainkey.<domain> (RFC 6376). Returns the parsed key params (algorithm, length, flags) so you can verify rotation status or key strength. Caller must know the sel…

    SeiIdentity

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dkim-lookup

    Fetch and parse a DKIM public-key record at <selector>._domainkey.<domain> (RFC 6376). Returns the parsed key params (algorithm, length, flags) so you can verify rotation status or key strength. Caller must know the sel…

    PolygonIdentity

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dkim-lookup

    Fetch and parse a DKIM public-key record at <selector>._domainkey.<domain> (RFC 6376). Returns the parsed key params (algorithm, length, flags) so you can verify rotation status or key strength. Caller must know the sel…

    CeloIdentity

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dmarc-check

    Fetch and validate a domain's DMARC policy at _dmarc.<domain> (RFC 7489). Surfaces the enforcement policy (none/quarantine/reject), reporting addresses, alignment modes, and common misconfigs (no rua, p=none stuck for m…

    CeloIdentity

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dmarc-check

    Fetch and validate a domain's DMARC policy at _dmarc.<domain> (RFC 7489). Surfaces the enforcement policy (none/quarantine/reject), reporting addresses, alignment modes, and common misconfigs (no rua, p=none stuck for m…

    OptimismIdentity

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dmarc-check

    Fetch and validate a domain's DMARC policy at _dmarc.<domain> (RFC 7489). Surfaces the enforcement policy (none/quarantine/reject), reporting addresses, alignment modes, and common misconfigs (no rua, p=none stuck for m…

    SeiIdentity

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dmarc-check

    Fetch and validate a domain's DMARC policy at _dmarc.<domain> (RFC 7489). Surfaces the enforcement policy (none/quarantine/reject), reporting addresses, alignment modes, and common misconfigs (no rua, p=none stuck for m…

    AvalancheIdentity

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dmarc-check

    Fetch and validate a domain's DMARC policy at _dmarc.<domain> (RFC 7489). Surfaces the enforcement policy (none/quarantine/reject), reporting addresses, alignment modes, and common misconfigs (no rua, p=none stuck for m…

    MonadIdentity

    n/a/ request

    2026-09-30

  • https://agent402.tools/api/dmarc-check

    Fetch and validate a domain's DMARC policy at _dmarc.<domain> (RFC 7489). Surfaces the enforcement policy (none/quarantine/reject), reporting addresses, alignment modes, and common misconfigs (no rua, p=none stuck for m…

    ArbitrumIdentity

    n/a/ request

    2026-09-30

Evidence

as of 2026-10-06

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

ChainSeller walletEndpointsAnswers 402x402-style payments
Base0xabf4fabd7c416fb67202e5f9002389fc75e2a9d06030 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)
Arbitrum0xabf4fabd7c416fb67202e5f9002389fc75e2a9d06060 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-09-19
unknown. not measured on this chain yet
Avalanche0xabf4fabd7c416fb67202e5f9002389fc75e2a9d06060 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-09-19
unknown. not measured on this chain yet
Celo0xabf4fabd7c416fb67202e5f9002389fc75e2a9d06060 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-09-19
unknown. not measured on this chain yet
Monad0xabf4fabd7c416fb67202e5f9002389fc75e2a9d06060 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-09-19
unknown. not measured on this chain yet
Optimism0xabf4fabd7c416fb67202e5f9002389fc75e2a9d06060 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-09-19
unknown. not measured on this chain yet
Polygon0xabf4fabd7c416fb67202e5f9002389fc75e2a9d06060 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
2026-09-19
unknown. not measured on this chain yet
Sei0xabf4fabd7c416fb67202e5f9002389fc75e2a9d06060 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
Highest
$2.00
per request, as registeredas of

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.