twin.unykorn.org
Base, Polygon · payout 0x7d9a65d06dcc435a52d5880c6310bd6e96c156db
Answers HTTP 402
4 of 4 probed endpoints answered HTTP 402 with a parseable payment payload
checked 2026-10-02
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)
397 x402-style payments from 8 distinct payers, $2.03 USDC in the last 7 days (Base, exact read)
window ended 2026-10-05
- Payments
- 397
- Outside payers
- 8
- USDC
- 2.03
All USDC received at this payout address: $2.03 (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 | 0x7d9a65d06dcc435a52d5880c6310bd6e96c156db | 361 | 2 of 2 probed endpoints answered HTTP 402 with a parseable payment payload 2026-10-02 | 397 x402-style payments from 8 distinct payers, $2.03 USDC in the last 7 days (Base, exact read) |
| Polygon | 0x7d9a65d06dcc435a52d5880c6310bd6e96c156db | 361 | 2 of 2 probed endpoints answered HTTP 402 with a parseable payment payload 2026-10-02 | unknown. not measured on this chain yet |
- Hosts
- twin.unykorn.org
- Listings
- 722 registered in the x402 catalogue
- Price range
- $0.0010 to $0.250 per call, as registered
- Categories (auto)
- Onchain data (250), Market data (180), Developer tools (120), Other (90), Web data (18), Identity (16), Search (14), Security (14), Inference (12), Media (8)
- First seen
- 2026-10-05 · last seen 2026-10-05
Claim this merchant
Sign a message from the payout address 0x7d9a65…c156db 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 · 722
| Endpoint | Chain | Category | Price | Catalogue date |
|---|---|---|---|---|
https://twin.unykorn.org/decode-bech32 Decode and checksum-verify a bech32 or bech32m string — Genesis402 / UnyKorn Operator Network | Base | Developer tools | $0.002 | 2026-10-01 |
https://twin.unykorn.org/decode-jwt Decode a JWT's header and claims — WITHOUT verifying it — Genesis402 / UnyKorn Operator Network | Base | Developer tools | $0.002 | 2026-10-01 |
https://twin.unykorn.org/defi/chains Blockchains ranked by DeFi TVL with market share — Genesis402 / UnyKorn Operator Network | Base | Onchain data | $0.002 | 2026-10-01 |
https://twin.unykorn.org/defi/protocol-search Find DeFi protocols by name or token symbol (DefiLlama index of 6,000+) — Genesis402 / UnyKorn Operator Network | Base | Onchain data | $0.002 | 2026-10-01 |
https://twin.unykorn.org/defi/token-prices Batch token prices: up to 25 tokens in one call by CoinGecko id or chain:address — Genesis402 / UnyKorn Operator Network | Base | Market data | $0.002 | 2026-10-01 |
https://twin.unykorn.org/encode-packed Solidity abi.encodePacked equivalent — Genesis402 / UnyKorn Operator Network | Base | Onchain data | $0.002 | 2026-10-01 |
https://twin.unykorn.org/erc20-domain-separator EIP-712 domain separator of a token — Genesis402 / UnyKorn Operator Network | Base | Onchain data | $0.002 | 2026-10-01 |
https://twin.unykorn.org/erc20-nonce EIP-2612 permit nonce for an owner — Genesis402 / UnyKorn Operator Network | Base | Onchain data | $0.002 | 2026-10-01 |
https://twin.unykorn.org/eth-address-from-pubkey Derive an Ethereum address from a public key — Genesis402 / UnyKorn Operator Network | Base | Market data | $0.002 | 2026-10-01 |
https://twin.unykorn.org/eth-contract-address Predict a contract address before it is deployed — Genesis402 / UnyKorn Operator Network | Base | Onchain data | $0.002 | 2026-10-01 |
https://twin.unykorn.org/eth-rlp-encode RLP-encode a value or nested list — Genesis402 / UnyKorn Operator Network | Base | Developer tools | $0.002 | 2026-10-01 |
https://twin.unykorn.org/evm-code Is this address a contract or an externally-owned account — Genesis402 / UnyKorn Operator Network | Base | Onchain data | $0.002 | 2026-10-01 |
https://twin.unykorn.org/evm-gas-price Current gas price on any of ten EVM chains — Genesis402 / UnyKorn Operator Network | Base | Onchain data | $0.002 | 2026-10-01 |
https://twin.unykorn.org/evm-native-balance Native coin balance for one address, on any of ten EVM chains — Genesis402 / UnyKorn Operator Network | Base | Onchain data | $0.002 | 2026-10-01 |
https://twin.unykorn.org/evm-nonce Transaction count (nonce) for one address — Genesis402 / UnyKorn Operator Network | Base | Onchain data | $0.002 | 2026-10-01 |
https://twin.unykorn.org/evm-priority-fee Suggested EIP-1559 priority fee (miner tip) — Genesis402 / UnyKorn Operator Network | Base | Onchain data | $0.002 | 2026-10-01 |
https://twin.unykorn.org/evm-storage Read one raw storage slot from any contract — Genesis402 / UnyKorn Operator Network | Base | Developer tools | $0.002 | 2026-10-01 |
https://twin.unykorn.org/geo/weather-alerts Active US weather alerts by state (NWS): warnings, watches, advisories — Genesis402 / UnyKorn Operator Network | Base | Other | $0.002 | 2026-10-01 |
https://twin.unykorn.org/geo/weather-forecast Daily weather forecast up to 16 days: highs, lows, rain chance, wind, UV, sunrise/sunset — Genesis402 / UnyKorn Operator Network | Base | Other | $0.002 | 2026-10-05 |
https://twin.unykorn.org/hash-hmac HMAC of a message under a key — Genesis402 / UnyKorn Operator Network | Base | Developer tools | $0.002 | 2026-10-01 |
https://twin.unykorn.org/json-canonical Canonical JSON and its digest — Genesis402 / UnyKorn Operator Network | Base | Developer tools | $0.002 | 2026-10-01 |
https://twin.unykorn.org/json-flatten Flatten nested JSON to leaf paths — Genesis402 / UnyKorn Operator Network | Base | Developer tools | $0.002 | 2026-10-01 |
https://twin.unykorn.org/json-to-csv Render JSON rows as CSV — Genesis402 / UnyKorn Operator Network | Base | Developer tools | $0.002 | 2026-10-01 |
https://twin.unykorn.org/llm LLM chat completion (local RTX 5090 models first, hosted allowlist second) — Genesis402 / UnyKorn Operator Network | Base | Inference | $0.002 | 2026-10-05 |
https://twin.unykorn.org/records/fx-history Exchange-rate history between two dates — Genesis402 / UnyKorn Operator Network | Base | Market data | $0.002 | 2026-10-01 |
https://twin.unykorn.org/records/vehicle-recalls Vehicle safety recalls (NHTSA) by make, model and year — Genesis402 / UnyKorn Operator Network | Base | Other | $0.002 | 2026-10-01 |
https://twin.unykorn.org/records/vin-decode VIN decoder (NHTSA): make, model, year, trim, body, engine, fuel, plant — Genesis402 / UnyKorn Operator Network | Base | Other | $0.002 | 2026-10-01 |
https://twin.unykorn.org/research/book-search Book search (Open Library): titles, authors, first published, ISBNs — Genesis402 / UnyKorn Operator Network | Base | Search | $0.002 | 2026-10-01 |
https://twin.unykorn.org/research/crates-package Rust crate facts from crates.io: version, downloads, repo — Genesis402 / UnyKorn Operator Network | Base | Developer tools | $0.002 | 2026-10-01 |
https://twin.unykorn.org/research/doi DOI lookup: citation metadata, authors, journal, citations, abstract — Genesis402 / UnyKorn Operator Network | Base | Other | $0.002 | 2026-10-01 |
https://twin.unykorn.org/research/hn-search Hacker News search: stories or comments, by relevance or recency — Genesis402 / UnyKorn Operator Network | Base | Web data | $0.002 | 2026-10-01 |
https://twin.unykorn.org/research/isbn ISBN lookup: title, publisher, date, pages — Genesis402 / UnyKorn Operator Network | Base | Other | $0.002 | 2026-10-01 |
https://twin.unykorn.org/research/npm-package npm package facts: latest version, license, weekly downloads, deps, types, deprecation — Genesis402 / UnyKorn Operator Network | Base | Security | $0.002 | 2026-10-01 |
https://twin.unykorn.org/research/pypi-package PyPI package facts: version, license, Python requirement, release date — Genesis402 / UnyKorn Operator Network | Base | Security | $0.002 | 2026-10-01 |
https://twin.unykorn.org/research/wiki-search Wikipedia search in any language edition — Genesis402 / UnyKorn Operator Network | Base | Search | $0.002 | 2026-10-01 |
https://twin.unykorn.org/research/wiki-summary Wikipedia article summary (lead section) by title — Genesis402 / UnyKorn Operator Network | Base | Web data | $0.002 | 2026-10-01 |
https://twin.unykorn.org/research/wikidata-search Wikidata entity search (find the Q-id for any person, company, place, thing) — Genesis402 / UnyKorn Operator Network | Base | Search | $0.002 | 2026-10-01 |
https://twin.unykorn.org/slippage-calc Slippage between an expected and an actual fill — Genesis402 / UnyKorn Operator Network | Base | Other | $0.002 | 2026-10-01 |
https://twin.unykorn.org/solana-blockhash Latest Solana blockhash and how long it stays valid — Genesis402 / UnyKorn Operator Network | Base | Other | $0.002 | 2026-10-01 |
https://twin.unykorn.org/solana-epoch Solana epoch progress — Genesis402 / UnyKorn Operator Network | Base | Onchain data | $0.002 | 2026-10-01 |
https://twin.unykorn.org/solana-inflation Current Solana inflation rate split — Genesis402 / UnyKorn Operator Network | Base | Market data | $0.002 | 2026-10-01 |
https://twin.unykorn.org/solana-rent-exempt Lamports needed to make a Solana account rent-exempt — Genesis402 / UnyKorn Operator Network | Base | Other | $0.002 | 2026-10-01 |
https://twin.unykorn.org/stellar-fee-stats Stellar fee statistics and surge-pricing state — Genesis402 / UnyKorn Operator Network | Base | Other | $0.002 | 2026-10-01 |
https://twin.unykorn.org/stellar-ledger Latest Stellar ledger — height, close time, fees and throughput — Genesis402 / UnyKorn Operator Network | Base | Other | $0.002 | 2026-10-01 |
https://twin.unykorn.org/storage-slot-mapping Compute the storage slot of a Solidity mapping entry — Genesis402 / UnyKorn Operator Network | Base | Developer tools | $0.002 | 2026-10-01 |
https://twin.unykorn.org/v1/embeddings OpenAI-compatible text embeddings over x402 (768-dim, up to 32 inputs per call) — Genesis402 / UnyKorn Operator Network | Base | Inference | $0.002 | 2026-10-01 |
https://twin.unykorn.org/web/email-check Email/domain deliverability check: MX, provider, SPF, DMARC policy, disposable flag — Genesis402 / UnyKorn Operator Network | Base | Identity | $0.002 | 2026-10-01 |
https://twin.unykorn.org/web/headers-audit Website security-headers audit with A-F grade, cookie flags and version leaks — Genesis402 / UnyKorn Operator Network | Base | Developer tools | $0.002 | 2026-10-01 |
https://twin.unykorn.org/web/ip-whois IP address ownership (RDAP): network, organization, country, CIDR — Genesis402 / UnyKorn Operator Network | Base | Identity | $0.002 | 2026-10-01 |
https://twin.unykorn.org/web/page-meta Page metadata: Open Graph, Twitter card, canonical, feeds, JSON-LD types, language — Genesis402 / UnyKorn Operator Network | Base | Web data | $0.002 | 2026-10-01 |
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.