saylorinnovations.com
Base, Arbitrum, Polygon · payout 0xa2a8df0f7caabea4e120a2568118f141569fc8aa
Answers HTTP 402
9 of 9 probed endpoints answered HTTP 402 with a parseable payment payload
checked 2026-10-05
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)
58 x402-style payments from 8 distinct payers, $0.13 USDC in the last 7 days (Base, exact read)
window ended 2026-10-05
- Payments
- 58
- Outside payers
- 8
- USDC
- 0.13
All USDC received at this payout address: $0.13 (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 | 0xa2a8df0f7caabea4e120a2568118f141569fc8aa | 162 | 3 of 3 probed endpoints answered HTTP 402 with a parseable payment payload 2026-10-05 | 58 x402-style payments from 8 distinct payers, $0.13 USDC in the last 7 days (Base, exact read) |
| Arbitrum | 0xa2a8df0f7caabea4e120a2568118f141569fc8aa | 162 | 3 of 3 probed endpoints answered HTTP 402 with a parseable payment payload 2026-10-05 | unknown. not measured on this chain yet |
| Polygon | 0xa2a8df0f7caabea4e120a2568118f141569fc8aa | 162 | 3 of 3 probed endpoints answered HTTP 402 with a parseable payment payload 2026-10-05 | unknown. not measured on this chain yet |
- Hosts
- saylorinnovations.com
- Listings
- 486 registered in the x402 catalogue
- Price range
- $0.0010 to $0.010 per call, as registered
- Categories (auto)
- Onchain data (204), Other (129), Developer tools (57), Market data (33), Identity (21), Security (12), Commerce (9), Media (6), Web data (6), Agents (3), Inference (3), Search (3)
- First seen
- 2026-10-05 · last seen 2026-10-05
Claim this merchant
Sign a message from the payout address 0xa2a8df…9fc8aa 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 · 486
| Endpoint | Chain | Category | Price | Catalogue date |
|---|---|---|---|---|
https://saylorinnovations.com/api/kb/entity-resolution-dedup Entity Resolution and Deduplication — AI & Agents | Base | Developer tools | $0.01 | 2026-10-05 |
https://saylorinnovations.com/api/kb/esp32-cam-module-features-programming-guide ESP32-CAM Module: Features & Programming Guide — IoT & Hardware | Base | Other | $0.01 | 2026-10-05 |
https://saylorinnovations.com/api/kb/exchange-withdrawal-troubleshooter Exchange Deposit and Withdrawal Troubleshooter — Wallets & Self-Custody | Base | Other | $0.01 | 2026-10-05 |
https://saylorinnovations.com/api/kb/forwarding-your-google-domain-to-a-url-or-ip Forwarding Your Google Domain to a URL or IP — Web & Domains | Base | Identity | $0.01 | 2026-10-05 |
https://saylorinnovations.com/api/kb/getting-started-with-the-esp32-microcontroller Getting Started with the ESP32 Microcontroller — IoT & Hardware | Base | Other | $0.01 | 2026-10-05 |
https://saylorinnovations.com/api/kb/google-dorking-search-shortcuts-reference Google Dorking Search Shortcuts Reference — Security & OpSec | Base | Search | $0.01 | 2026-10-05 |
https://saylorinnovations.com/api/kb/hard-drive-diagnosis-can-a-3-5-inch-drive-run-on-poe Hard Drive Diagnosis: Can a 3.5-Inch Drive Run on PoE? — IoT & Hardware | Base | Developer tools | $0.01 | 2026-10-05 |
https://saylorinnovations.com/api/kb/how-flash-loans-smart-contracts-can-be-profitable How Flash Loans & Smart Contracts Can Be Profitable — On-chain & DeFi | Base | Onchain data | $0.01 | 2026-10-05 |
https://saylorinnovations.com/api/kb/how-to-grow-a-youtube-channel-full-guide How to Grow a YouTube Channel — Full Guide — Content & Growth | Base | Web data | $0.01 | 2026-10-05 |
https://saylorinnovations.com/api/kb/human-approval-authority Human Approval and Action Authority — AI & Agents | Base | Other | $0.01 | 2026-10-05 |
https://saylorinnovations.com/api/security/:mint Token Security Report. Solana token rug risk check — is this token safe to buy? Rug-pull and scam screening for any SPL / pump.fun mint: mint and freeze authority (read from on-chain RPC), LP locked %, top-10 holder con… | Base | Security | $0.01 | 2026-09-25 |
https://saylorinnovations.com/api/wallet/:address Wallet Intelligence Report. Solana wallet analysis: SOL balance, token positions and portfolio holdings, recent activity, wallet age, failed-transaction rate, and transparent behavioural flags (fresh wallet, dust farmin… | Base | Onchain data | $0.01 | 2026-09-25 |
https://saylorinnovations.com/api/aircraft/military Military Aircraft Airborne Now (worldwide ADS-B) — Aviation | Arbitrum | Other | unknown | 2026-10-05 |
https://saylorinnovations.com/api/aircraft/military Military Aircraft Airborne Now (worldwide ADS-B) — Aviation | Polygon | Other | unknown | 2026-10-05 |
https://saylorinnovations.com/api/aircraft/track/:id Track a Flight or Aircraft (callsign, hex or registration) — Aviation | Arbitrum | Commerce | unknown | 2026-10-05 |
https://saylorinnovations.com/api/aircraft/track/:id Track a Flight or Aircraft (callsign, hex or registration) — Aviation | Polygon | Commerce | unknown | 2026-10-05 |
https://saylorinnovations.com/api/base/token/:address Base Token Verdict. Base token verdict: send any Base (chain 8453) token contract address, get a plain-language verdict (avoid / high-risk / caution / looks-ok), a 0-100 score with every deduction explained, honeypot an… | Polygon | Onchain data | unknown | 2026-09-25 |
https://saylorinnovations.com/api/base/token/:address Base Token Verdict. Base token verdict: send any Base (chain 8453) token contract address, get a plain-language verdict (avoid / high-risk / caution / looks-ok), a 0-100 score with every deduction explained, honeypot an… | Arbitrum | Onchain data | unknown | 2026-09-25 |
https://saylorinnovations.com/api/bio/alphafold/:id AlphaFold Predicted Protein Structure. AlphaFold predicted protein structure for a UniProt accession or gene symbol: model id and version, mean pLDDT confidence, fraction of residues per confidence band with an interpre… | Arbitrum | Other | unknown | 2026-09-25 |
https://saylorinnovations.com/api/bio/alphafold/:id AlphaFold Predicted Protein Structure. AlphaFold predicted protein structure for a UniProt accession or gene symbol: model id and version, mean pLDDT confidence, fraction of residues per confidence band with an interpre… | Polygon | Other | unknown | 2026-09-25 |
https://saylorinnovations.com/api/bio/pathways/:id Biological Pathways for a Gene (Reactome). Biological pathways a gene or protein takes part in (Reactome), by gene symbol or UniProt accession: every pathway with its Reactome id, name, disease flag and link. Human by d… | Arbitrum | Other | unknown | 2026-09-25 |
https://saylorinnovations.com/api/bio/pathways/:id Biological Pathways for a Gene (Reactome). Biological pathways a gene or protein takes part in (Reactome), by gene symbol or UniProt accession: every pathway with its Reactome id, name, disease flag and link. Human by d… | Polygon | Other | unknown | 2026-09-25 |
https://saylorinnovations.com/api/bio/pdb/:pdb_id Protein Data Bank Structure (RCSB PDB). Protein Data Bank structure lookup by PDB id (4HHB): title, experimental method, resolution, release date, molecular weight, each polymer chain with organism and UniProt ids, boun… | Arbitrum | Other | unknown | 2026-09-25 |
https://saylorinnovations.com/api/bio/pdb/:pdb_id Protein Data Bank Structure (RCSB PDB). Protein Data Bank structure lookup by PDB id (4HHB): title, experimental method, resolution, release date, molecular weight, each polymer chain with organism and UniProt ids, boun… | Polygon | Other | unknown | 2026-09-25 |
https://saylorinnovations.com/api/bio/protein/:id Protein Function Lookup (UniProt). Protein function lookup by UniProt accession or gene symbol (TP53, BRCA1; human default, ?organism= taxon for others): recommended name, function, subcellular location, tissue specific… | Polygon | Other | unknown | 2026-09-25 |
https://saylorinnovations.com/api/bio/protein/:id Protein Function Lookup (UniProt). Protein function lookup by UniProt accession or gene symbol (TP53, BRCA1; human default, ?organism= taxon for others): recommended name, function, subcellular location, tissue specific… | Arbitrum | Other | unknown | 2026-09-25 |
https://saylorinnovations.com/api/bio/rare-disease/:id Rare Disease Reference (Orphanet). Rare disease reference from Orphanet by name or ORPHAcode: definition, synonyms, ICD-10 / ICD-11 / OMIM / UMLS / MeSH codes, inheritance, age of onset, prevalence estimates, and clinic… | Polygon | Other | unknown | 2026-09-25 |
https://saylorinnovations.com/api/bio/rare-disease/:id Rare Disease Reference (Orphanet). Rare disease reference from Orphanet by name or ORPHAcode: definition, synonyms, ICD-10 / ICD-11 / OMIM / UMLS / MeSH codes, inheritance, age of onset, prevalence estimates, and clinic… | Arbitrum | Other | unknown | 2026-09-25 |
https://saylorinnovations.com/api/bio/variant/:id Genetic Variant Clinical Significance (ClinVar). Genetic variant clinical significance from ClinVar by rsID, ClinVar id (VCV) or HGVS: pathogenic / benign / uncertain classification, review status with 0-4 stars, condit… | Polygon | Other | unknown | 2026-09-25 |
https://saylorinnovations.com/api/bio/variant/:id Genetic Variant Clinical Significance (ClinVar). Genetic variant clinical significance from ClinVar by rsID, ClinVar id (VCV) or HGVS: pathogenic / benign / uncertain classification, review status with 0-4 stars, condit… | Arbitrum | Other | unknown | 2026-09-25 |
https://saylorinnovations.com/api/bnb/token/:address BNB Chain Token Verdict. BNB Chain (BSC) token verdict and wallet-risk check: any BEP-20 token address gets avoid / high-risk / caution / looks-ok, a 0-100 score with every deduction explained, honeypot and buy/sell tax… | Arbitrum | Security | unknown | 2026-09-25 |
https://saylorinnovations.com/api/bnb/token/:address BNB Chain Token Verdict. BNB Chain (BSC) token verdict and wallet-risk check: any BEP-20 token address gets avoid / high-risk / caution / looks-ok, a 0-100 score with every deduction explained, honeypot and buy/sell tax… | Polygon | Security | unknown | 2026-09-25 |
https://saylorinnovations.com/api/books/isbn/:isbn ISBN Lookup: title, authors, publisher, description, cover. ISBN lookup (checksum-validated ISBN-10/13): title, authors, publisher, publish date, pages, languages, subjects, description, first published and cover image. | Polygon | Developer tools | unknown | 2026-09-25 |
https://saylorinnovations.com/api/books/isbn/:isbn ISBN Lookup: title, authors, publisher, description, cover. ISBN lookup (checksum-validated ISBN-10/13): title, authors, publisher, publish date, pages, languages, subjects, description, first published and cover image. | Arbitrum | Developer tools | unknown | 2026-09-25 |
https://saylorinnovations.com/api/chess/player/:username Chess Player Ratings & Stats (Lichess). Lichess chess player profile: title, ratings and game counts per time control, win/loss/draw totals, country, join date and play time. | Arbitrum | Other | unknown | 2026-09-25 |
https://saylorinnovations.com/api/chess/player/:username Chess Player Ratings & Stats (Lichess). Lichess chess player profile: title, ratings and game counts per time control, win/loss/draw totals, country, join date and play time. | Polygon | Other | unknown | 2026-09-25 |
https://saylorinnovations.com/api/country/:country Country Profile: facts + latest economic indicators. Country profile by name or ISO code: official and native names, ISO codes, capital, region, borders, languages, currencies, calling codes, TLD, area, plus latest Worl… | Polygon | Other | unknown | 2026-09-25 |
https://saylorinnovations.com/api/country/:country Country Profile: facts + latest economic indicators. Country profile by name or ISO code: official and native names, ISO codes, capital, region, borders, languages, currencies, calling codes, TLD, area, plus latest Worl… | Arbitrum | Other | unknown | 2026-09-25 |
https://saylorinnovations.com/api/data/country Resolve a two-letter country code into its World Bank name, region, capital, income group and lending classification for data enrichment. | Arbitrum | Identity | unknown | 2026-10-05 |
https://saylorinnovations.com/api/data/country Resolve a two-letter country code into its World Bank name, region, capital, income group and lending classification for data enrichment. | Polygon | Identity | unknown | 2026-10-05 |
https://saylorinnovations.com/api/data/economy Get up to five recent annual observations for population, GDP in current US dollars and consumer-price inflation. Includes years, units, source links and missing values. | Arbitrum | Market data | unknown | 2026-10-05 |
https://saylorinnovations.com/api/data/economy Get up to five recent annual observations for population, GDP in current US dollars and consumer-price inflation. Includes years, units, source links and missing values. | Polygon | Market data | unknown | 2026-10-05 |
https://saylorinnovations.com/api/data/exchange-rates Get daily reference exchange rates per one unit of a base currency, with observation date and currency codes. Not executable trading quotes. ECB source data is also available free from ecb.europa.eu. | Arbitrum | Market data | unknown | 2026-10-05 |
https://saylorinnovations.com/api/data/exchange-rates Get daily reference exchange rates per one unit of a base currency, with observation date and currency codes. Not executable trading quotes. ECB source data is also available free from ecb.europa.eu. | Polygon | Market data | unknown | 2026-10-05 |
https://saylorinnovations.com/api/defi/protocol/:slug DeFi Protocol TVL. DeFi protocol TVL: total value locked, 1-day and 7-day change, per-chain TVL with borrowed and staked amounts, category, market cap and audit count for any DefiLlama protocol slug. | Polygon | Onchain data | unknown | 2026-09-25 |
https://saylorinnovations.com/api/defi/protocol/:slug DeFi Protocol TVL. DeFi protocol TVL: total value locked, 1-day and 7-day change, per-chain TVL with borrowed and staked amounts, category, market cap and audit count for any DefiLlama protocol slug. | Arbitrum | Onchain data | unknown | 2026-09-25 |
https://saylorinnovations.com/api/docs/crates/serde Library Docs — crates serde — Developer Tools | Arbitrum | Other | unknown | 2026-10-05 |
https://saylorinnovations.com/api/docs/crates/serde Library Docs — crates serde — Developer Tools | Polygon | Other | unknown | 2026-10-05 |
https://saylorinnovations.com/api/docs/github/colinhacks/zod Library Docs — github colinhacks/zod — Developer Tools | Arbitrum | Developer tools | unknown | 2026-10-05 |
https://saylorinnovations.com/api/docs/github/colinhacks/zod Library Docs — github colinhacks/zod — Developer Tools | Polygon | Developer tools | unknown | 2026-10-05 |
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.