agent402.tools
Base, Arbitrum, Avalanche, Celo, Monad, Optimism, Polygon, Sei · payout 0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0
Answers HTTP 402
0 of 8 probed endpoints answered HTTP 402 with a parseable payment payload
checked 2026-09-19
Method: one unpaid request per listed endpoint. A 402 with a payment payload a client could parse counts. Nothing is paid.
x402-style payments, last 7 days (Base)
2324 x402-style payments from 88 distinct payers, $45.65 USDC in the last 7 days (Base, exact read)
window ended 2026-10-05
- Payments
- 2,324
- Outside payers
- 88
- USDC
- 45.65
All USDC received at this payout address: $45.66 (includes payments that are not x402)
Method: 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.
Reading: x402-style payments to this payout address on Base, exact read of the 7 days to 2026-10-05, 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
Delivery is not measured. We never send a payment, so we never observe what a paid call returns. Unknown means we hold no reading, not that anything failed.
Chains · one payout address, each chain read on its own
| Chain | Payout address | Listings | Answers 402 | x402-style payments |
|---|---|---|---|---|
| Base | 0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0 | 600 | 0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19 | 2324 x402-style payments from 88 distinct payers, $45.65 USDC in the last 7 days (Base, exact read) |
| Arbitrum | 0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0 | 603 | 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 | 603 | 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 | 603 | 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 | 603 | 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 | 603 | 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 | 603 | 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 | 603 | 0 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-19 | unknown. not measured on this chain yet |
- Hosts
- agent402.tools
- Listings
- 4,821 registered in the x402 catalogue
- Price range
- $0.0010 to $2.00 per call, as registered
- Categories (auto)
- Developer tools (1096), Market data (840), Onchain data (704), Other (585), Inference (416), Web data (312), Media (248), Identity (224), Search (136), Agents (124), Security (120), Commerce (16)
- First seen
- 2026-10-05 · last seen 2026-10-05
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.
Registrations · 4,821
| Endpoint | Chain | Category | Price | Catalogue date |
|---|---|---|---|---|
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… | Base | Onchain data | $0.002 | 2026-09-30 |
https://agent402.tools/api/crypto-indicators RSI, MACD, EMA 20/50/200, SMA 20/50, Bollinger bands, ATR and VWAP computed deterministically from live candles for one coin and interval, with the latest series points and a plain-language summary. Use it when an agent… | Base | Market data | $0.002 | 2026-09-30 |
https://agent402.tools/api/crypto-news Recent crypto headlines aggregated from the public feeds of major outlets, deduplicated and newest first, each with title, source, publish time, canonical URL and a short summary, filterable by keyword, source and time … | Base | Web data | $0.002 | 2026-09-30 |
https://agent402.tools/api/csv-to-json Parse CSV (quoted fields supported) into a JSON array of objects, using the first row as headers (header=false for arrays). | Base | Developer tools | $0.002 | 2026-09-30 |
https://agent402.tools/api/csv-to-md Convert CSV into a GitHub-flavored Markdown table (first row is the header). | Base | Developer tools | $0.002 | 2026-09-30 |
https://agent402.tools/api/defi-chain-tvl-history Daily total value locked history for one chain or for all of DeFi, up to ten years of points, with latest, first, minimum, maximum and mean and the change over the window. Use it when an agent is charting a chain's grow… | Base | Onchain data | $0.002 | 2026-09-30 |
https://agent402.tools/api/defi-chains Blockchains ranked by DeFi total value locked with each chain's share of the total, native token, EVM chain id and CoinGecko id. Use it when an agent is comparing chains by DeFi activity or needs the canonical ids to qu… | Base | Onchain data | $0.002 | 2026-09-30 |
https://agent402.tools/api/defi-fees Protocols ranked by fees paid by users or by revenue kept, with 24h, 7d, 30d, 1y and all-time totals, change, category and chains, and chain-level gas fees on request. Use it when an agent is comparing protocols on real… | Base | Onchain data | $0.002 | 2026-09-30 |
https://agent402.tools/api/defi-protocol One DeFi protocol in full: TVL rank, TVL per chain, recent change, market cap to TVL, token, website, audits and parent, with name suggestions when the slug is unknown. Use it when an agent is researching a specific pro… | Base | Onchain data | $0.002 | 2026-09-30 |
https://agent402.tools/api/defi-protocols DeFi protocols ranked by total value locked, filterable by category, chain or name, each with rank, chains, TVL, 1h, 1d and 7d change, market cap and the market cap to TVL ratio. Use it when an agent needs the league ta… | Base | Onchain data | $0.002 | 2026-09-30 |
https://agent402.tools/api/defi-yield-history Daily APY and TVL history for one yield pool, up to ten years, with a summary of latest, minimum, maximum and mean APY and the TVL change over the window. Use it when an agent is judging whether a pool's current yield i… | Base | Onchain data | $0.002 | 2026-09-30 |
https://agent402.tools/api/defi-yields Live yield opportunities across DeFi, filterable by chain, protocol, token symbol, stablecoin-only, minimum TVL and minimum APY: pool identity, TVL in dollars, total APY split into base and reward, 1-day, 7-day and 30-d… | Base | Onchain data | $0.002 | 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… | Base | Onchain data | $0.002 | 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… | Base | Onchain data | $0.002 | 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… | Base | Identity | $0.002 | 2026-09-30 |
https://agent402.tools/api/dns-lookup Resolve any DNS record type for a host: A, AAAA, MX, TXT, CNAME, NS, SOA, CAA, SRV, PTR. Returns the records plus a count. Built on Node's native resolver - no external API. | Base | Identity | $0.002 | 2026-09-30 |
https://agent402.tools/api/dns-propagation Resolve the same DNS record against 4 public resolvers (Google, Cloudflare, Quad9, OpenDNS) in parallel; surface divergences. The first call you make after a DNS change - confirms the world sees what you intended. | Base | Identity | $0.002 | 2026-09-30 |
https://agent402.tools/api/earthquakes Real-time USGS earthquake feed: magnitude, place, time, depth, coordinates. Live government data, no key. | Base | Other | $0.002 | 2026-09-30 |
https://agent402.tools/api/eas-attestations List EAS (Ethereum Attestation Service) attestations for an address as recipient, attester, or either, on mainnet/Base/Optimism/Arbitrum/Sepolia. Returns attestation id, attester, recipient, schema id, revocable/revoked… | Base | Developer tools | $0.002 | 2026-09-30 |
https://agent402.tools/api/email-deliverability End-to-end email-auth report for a domain: SPF + DMARC + DKIM (probes common selectors automatically) + MX records + score 0–100. The one call to make when 'why is our mail going to spam?' lands in your inbox. | Base | Identity | $0.002 | 2026-09-30 |
https://agent402.tools/api/embed Generate a text embedding vector using OpenAI text-embedding-3-small (1536 dimensions). Ideal for semantic search, RAG, and clustering. No API key needed; pay per call via x402. Text capped at 32k chars. | Base | Inference | $0.002 | 2026-09-30 |
https://agent402.tools/api/ens-bulk-resolve Reverse-resolve a batch of Ethereum addresses to ENS primary names + avatar URLs (up to 50 per call). Returns one row per address with name (or null), displayName (with checksum if no name), and avatar URI. Use to label… | Base | Onchain data | $0.002 | 2026-09-30 |
https://agent402.tools/api/erc721-owner Who owns this NFT? Calls ownerOf(tokenId) on any ERC-721 contract on Ethereum, Base, Polygon, Arbitrum, or Optimism. Complements nft-holdings (which lists a WALLET's NFTs) - this answers by TOKEN. Keyless multi-endpoint… | Base | Onchain data | $0.002 | 2026-09-30 |
https://agent402.tools/api/eth-call Escape hatch for power users: forward an arbitrary read-only JSON-RPC method to the chain. Method must be in our read-only whitelist (eth_call, eth_getLogs, eth_getBlockByNumber, eth_getTransactionReceipt, eth_chainId, … | Base | Onchain data | $0.002 | 2026-09-30 |
https://agent402.tools/api/extract-entities Pull emails, URLs, IPv4s, @mentions, and #hashtags out of free text. Returns deduped lists. | Base | Developer tools | $0.002 | 2026-09-30 |
https://agent402.tools/api/farcaster-by-address Reverse-lookup an Ethereum address to its Farcaster account (via verified address). Returns FID, username, display name, bio, follower/following counts, and Warpcast URL, or found=false if the address has not verified o… | Base | Onchain data | $0.002 | 2026-09-30 |
https://agent402.tools/api/farcaster-profile Lookup a Farcaster profile by username or FID. Returns FID, username, display name, bio, profile picture URL, follower/following counts, and the canonical Warpcast URL. Use to label cast authors, validate a Farcaster ha… | Base | Identity | $0.002 | 2026-10-05 |
https://agent402.tools/api/fx-historical Historical foreign-exchange rate for a specific date using European Central Bank reference rates (via Frankfurter). Returns the rate that was published on (or rolled forward to) the requested date. | Base | Market data | $0.002 | 2026-09-30 |
https://agent402.tools/api/fx-rate Live currency conversion using European Central Bank reference rates (via Frankfurter). Converts an amount between two currencies and returns the rate and date. | Base | Market data | $0.002 | 2026-09-30 |
https://agent402.tools/api/gov-data Search 300,000+ US government datasets on catalog.data.gov (Catalog API): titles, publishing org, formats, and direct resource URLs - the index agents need before fetching public data. | Base | Other | $0.002 | 2026-09-30 |
https://agent402.tools/api/gravatar-check Check whether an email address has a Gravatar: hashes the normalized email (MD5, pure CPU - the raw address is never sent upstream), probes gravatar.com for an avatar, and fetches the public profile when one exists (dis… | Base | Identity | $0.002 | 2026-09-30 |
https://agent402.tools/api/image-crop Crop an image to a pixel box, and/or rotate (90/180/270) and flip it - applied in that order. Send a public image URL or a base64 image. Returns the result as binary, or as a JSON data URI with dataUri:true. Determinist… | Base | Media | $0.002 | 2026-09-30 |
https://agent402.tools/api/ip-info Classify an IP address: version, public/private/loopback/link-local, integer form, and reverse-DNS (PTR) lookup. | Base | Identity | $0.002 | 2026-09-30 |
https://agent402.tools/api/json-to-csv Convert a JSON array of objects to CSV. Nested objects are flattened to dot-path columns. | Base | Developer tools | $0.002 | 2026-10-04 |
https://agent402.tools/api/kalshi-event Get full detail for a single Kalshi event with all its nested markets. Mutually-exclusive flag tells you whether the markets partition outcome space (e.g. one winner). Useful for: viewing all candidates in an election, … | Base | Market data | $0.002 | 2026-09-30 |
https://agent402.tools/api/kalshi-live-data The live feed a Kalshi event settles on, from Kalshi's free live_data tier: a crypto event returns the CF Benchmarks price series, candlesticks (15M, 1M) and the maturity time; an economic-data event (CPI, jobs) returns… | Base | Market data | $0.002 | 2026-09-30 |
https://agent402.tools/api/kalshi-markets List Kalshi markets (CFTC-regulated US event contracts). Filter by status (open/closed/settled/unopened) or by event ticker. Returns yes/no bid/ask, last price, volume, open interest, and the resting contract size at th… | Base | Market data | $0.002 | 2026-09-30 |
https://agent402.tools/api/kalshi-weather-index Kalshi's own minute-resolution city temperature index (Fahrenheit), the series its hourly temperature markets settle on, computed from weighted member stations. Ask for a trailing window (lastSec, default one hour, max … | Base | Market data | $0.002 | 2026-09-30 |
https://agent402.tools/api/keywords Top keywords and two-word phrases by frequency (stopwords removed). Cheap, deterministic signal for routing, tagging, and dedup. | Base | Developer tools | $0.002 | 2026-09-30 |
https://agent402.tools/api/l2-gas-comparison Current gas snapshot across Ethereum + supported L2s (Base, Polygon, Arbitrum, Optimism), sorted cheapest-first. Returns gas price in gwei, latest block number, chain id, and an isL2 flag per chain. Use to route a trans… | Base | Onchain data | $0.002 | 2026-09-30 |
https://agent402.tools/api/l2-tvl Top L2s by Total Value Locked (TVL) via DeFiLlama. Returns each L2 with TVL in USD, native token symbol, and CoinGecko/CMC ids. Classification combines DeFiLlama's parent-chain hint with a curated list of well-known L2s… | Base | Onchain data | $0.002 | 2026-09-30 |
https://agent402.tools/api/memory/grant Share your namespace with another wallet so different agents can coordinate through it. Grant read or readwrite access to a grantee wallet, optionally with a TTL. This is the cross-agent sharing a single agent cannot pr… | Base | Onchain data | $0.002 | 2026-09-30 |
https://agent402.tools/api/memory/recall Recall remembered text by similarity to a query (ranked by cosine similarity), not by exact key. Returns the top-k matches with scores. The retrieval half of the wallet-scoped semantic memory. | Base | Agents | $0.002 | 2026-09-30 |
https://agent402.tools/api/meta Fetch page metadata for a URL: title, description, OpenGraph, Twitter cards, canonical URL, favicon. | Base | Web data | $0.002 | 2026-09-30 |
https://agent402.tools/api/mev-block-payment Look up the MEV-Boost payment for a specific slot or block number via the Flashbots relay. Returns the builder, proposer, value paid in ETH, gas usage, and tx count. Returns found=false if the block was built locally or… | Base | Onchain data | $0.002 | 2026-10-05 |
https://agent402.tools/api/mev-builder-share Builder market share aggregated over the last N MEV-Boost blocks via the Flashbots relay. Returns per-builder block count, share percent, total ETH paid to proposers, and average per block. Use to track block-builder co… | Base | Onchain data | $0.002 | 2026-09-30 |
https://agent402.tools/api/mev-recent-blocks Last N MEV-Boost-built blocks via the Flashbots relay. For each block: slot, block number/hash, builder pubkey, proposer pubkey, gas used/limit, ETH paid to the proposer, and tx count. Use to monitor block-builder marke… | Base | Onchain data | $0.002 | 2026-09-30 |
https://agent402.tools/api/moderate Check text for harmful content using OpenAI moderation (omni-moderation-latest). Returns flagged status, category breakdown (harassment, hate, self-harm, sexual, violence, etc.), and confidence scores. No API key needed… | Base | Inference | $0.002 | 2026-10-03 |
https://agent402.tools/api/nft-collection Fetch NFT collection (ERC-721 / ERC-1155) metadata by contract address on Ethereum, Base, Polygon, Arbitrum, or Optimism: name, symbol, token type, total supply, deployer, OpenSea slug + image, floor (ETH), Twitter/Disc… | Base | Onchain data | $0.002 | 2026-09-30 |
https://agent402.tools/api/nft-floor Get the current floor price for an NFT collection across OpenSea + LooksRare (Ethereum). Returns per-marketplace floor (ETH), collection URL, retrieval timestamp, and the cheapest cross-marketplace floor with the market… | Base | Onchain data | $0.002 | 2026-09-30 |
Descriptions 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.
Data CC-BY-4.0, attribution: data by satohub.ai. Collector run 2026-10-05. Appearing here is not an endorsement. Check an endpoint with the doctor.