x402.agentindex.world
Base · payout 0xb3f32bdfe8d07825bc0d7387295ab1d7559ba69d
Answers HTTP 402
4 of 4 probed endpoints answered HTTP 402 with a parseable payment payload
checked 2026-10-03
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)
99 x402-style payments from 8 distinct payers, $0.20 USDC in the last 7 days (Base, exact read)
window ended 2026-10-05
- Payments
- 99
- Outside payers
- 8
- USDC
- 0.2
All USDC received at this payout address: $0.20 (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 | 0xb3f32bdfe8d07825bc0d7387295ab1d7559ba69d | 104 | 4 of 4 probed endpoints answered HTTP 402 with a parseable payment payload 2026-10-03 | 99 x402-style payments from 8 distinct payers, $0.20 USDC in the last 7 days (Base, exact read) |
- Hosts
- x402.agentindex.world
- Listings
- 104 registered in the x402 catalogue
- Price range
- $0.0010 to $0.010 per call, as registered
- Categories (auto)
- Developer tools (34), Onchain data (24), Other (22), Inference (11), Media (4), Search (3), Web data (3), Identity (1), Market data (1), Security (1)
- First seen
- 2026-10-05 · last seen 2026-10-05
Claim this merchant
Sign a message from the payout address 0xb3f32b…9ba69d 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 · 104
| Endpoint | Chain | Category | Price | Catalogue date |
|---|---|---|---|---|
https://x402.agentindex.world/unit/convert Convert a value between units of length, mass, volume or temperature (C/F/K). | Base | Developer tools | $0.001 | 2026-10-03 |
https://x402.agentindex.world/v1/chat/completions OpenAI-compatible chat completions (non-streaming) for any OpenRouter model - GET /v1/models lists them free, with pricing (upstream cost x 1.10). Pay only for what you use: sign a ceiling based on your max_tokens, sett… | Base | Inference | $0.001 | 2026-09-28 |
https://x402.agentindex.world/validate/ean EAN-8 or EAN-13 barcode checksum validation (auto-detected by length). | Base | Developer tools | $0.001 | 2026-10-02 |
https://x402.agentindex.world/validate/imei IMEI (15-digit mobile device identifier) Luhn checksum validation. | Base | Identity | $0.001 | 2026-10-02 |
https://x402.agentindex.world/validate/isbn ISBN-10 or ISBN-13 checksum validation (auto-detected by length). | Base | Developer tools | $0.001 | 2026-10-03 |
https://x402.agentindex.world/validate/isin ISIN (ISO 6166 security identifier) Luhn checksum validation. | Base | Developer tools | $0.001 | 2026-10-03 |
https://x402.agentindex.world/validate/routing US ABA bank routing number (9-digit) checksum validation. | Base | Developer tools | $0.001 | 2026-10-02 |
https://x402.agentindex.world/validate/siret French SIRET (14-digit business establishment number) Luhn checksum validation. Note: the rare La Poste SIREN exception to the standard rule is not applied. | Base | Developer tools | $0.001 | 2026-10-03 |
https://x402.agentindex.world/verify Check whether a source supports, contradicts, or gives insufficient information about a claim - a typed verdict with a real probability, not generated text. Try GET /verify/sample. | Base | Other | $0.001 | 2026-09-27 |
https://x402.agentindex.world/wallet-balance Read native coin and USDC balances for any EVM wallet on Base, Ethereum, Polygon, Arbitrum or Optimism, with atomic amounts and current block. No RPC key or account. Try GET /wallet-balance/sample. | Base | Onchain data | $0.001 | 2026-09-27 |
https://x402.agentindex.world/wallet-intelligence One call replaces wallet-balance and gas reads across Base, Ethereum, Polygon, Arbitrum and Optimism. Returns native and USDC balances, current blocks, fees and Base x402 payment readiness. One signature instead of ten … | Base | Onchain data | $0.001 | 2026-09-27 |
https://x402.agentindex.world/weather Current weather and a 3-day forecast for any city or lat/lon - temperature, humidity, wind, conditions. No account, no API key. Try GET /weather/sample. | Base | Other | $0.001 | 2026-10-04 |
https://x402.agentindex.world/llm/claude-sonnet Claude Sonnet API - pay per call, no API key. OpenAI-format chat completions on anthropic/claude-sonnet-5.5, pinned to Anthropic's own OpenRouter endpoint for reliability. You sign a fixed price computed from your max_t… | Base | Inference | $0.001892 | 2026-09-30 |
https://x402.agentindex.world/encoding/detect Detect whether hex-encoded bytes are ASCII, UTF-8, or UTF-16 with a BOM, by decode-validity and BOM presence (not statistical language detection). | Base | Developer tools | $0.002 | 2026-10-01 |
https://x402.agentindex.world/encoding/transcode Convert text between utf-8, base64, hex, URL-percent-encoding and ascii representations. | Base | Developer tools | $0.002 | 2026-10-01 |
https://x402.agentindex.world/extract Extract structured data from a URL or raw text into strict JSON matching a schema you provide. Fields the content doesn't support come back null - never an invented or approximate value, and an unmatchable schema return… | Base | Developer tools | $0.002 | 2026-10-02 |
https://x402.agentindex.world/hash/hash Compute an MD5, SHA-1, SHA-256 or SHA-512 hex digest of text. | Base | Developer tools | $0.002 | 2026-10-01 |
https://x402.agentindex.world/hash/hmac Compute an HMAC (MD5, SHA-1, SHA-256 or SHA-512) of text with a given key. | Base | Developer tools | $0.002 | 2026-10-01 |
https://x402.agentindex.world/intent Intent detection: classify text as a question, request, complaint, compliment, or other, with a confidence score and an alternate label. Powered by Jev, with an automatic Groq-hosted LLM fallback if Jev is slow or unava… | Base | Inference | $0.002 | 2026-09-30 |
https://x402.agentindex.world/json/diff Recursive diff between two JSON documents: added, removed and changed paths. | Base | Developer tools | $0.002 | 2026-10-01 |
https://x402.agentindex.world/language Language detection: identify which of 20 common languages (or "other") a text is written in, with a confidence score. Powered by Jev, with an automatic Groq-hosted LLM fallback if Jev is slow or unavailable - under 4.5s… | Base | Developer tools | $0.002 | 2026-09-30 |
https://x402.agentindex.world/pdf Extract a public PDF (by HTTPS URL or base64) into clean Markdown - headings and tables preserved via layout-aware parsing, plus title/author/page count/date metadata and a real token count. Text content itself is never… | Base | Developer tools | $0.002 | 2026-09-27 |
https://x402.agentindex.world/sentiment Sentiment analysis: classify text as positive, negative, or neutral with a confidence score and an alternate label. Powered by Jev, with an automatic Groq-hosted LLM fallback if Jev is slow or unavailable ("engine":"jev… | Base | Inference | $0.002 | 2026-09-30 |
https://x402.agentindex.world/spam-check Spam detection: classify text as spam or not spam with a confidence score. Powered by Jev, with an automatic Groq-hosted LLM fallback if Jev is slow or unavailable - under 4.5s guaranteed. Try GET /spam-check/sample. | Base | Inference | $0.002 | 2026-09-30 |
https://x402.agentindex.world/summarize Summarize a URL, raw text or HTML at the length you request - short, medium or long - with the source noted. Neutral and factual, no invented facts. Try GET /summarize/sample. Part of the AgentIndex content kit (pdf, we… | Base | Inference | $0.002 | 2026-09-30 |
https://x402.agentindex.world/text/slug Slugify text: strip accents, lowercase, replace non-alphanumerics with a separator. | Base | Developer tools | $0.002 | 2026-10-02 |
https://x402.agentindex.world/time/humanize Human-readable relative time ('2 hours ago', 'in 3 days') between a datetime and a reference (default now). | Base | Other | $0.002 | 2026-10-01 |
https://x402.agentindex.world/toxicity Toxicity detection: classify text as toxic or not toxic (hate speech, harassment, threats, severe offensive language) with a confidence score. Powered by Jev, with an automatic Groq-hosted LLM fallback if Jev is slow or… | Base | Inference | $0.002 | 2026-09-30 |
https://x402.agentindex.world/translate Translate up to 200 text segments in a single call - the same result that would otherwise take 200 separate calls to translate a whole file. Markdown, HTML and {x} placeholders preserved per segment, order and count kep… | Base | Developer tools | $0.002 | 2026-09-28 |
https://x402.agentindex.world/validate/iban ISO 13616 IBAN mod-97 checksum validation, with optional BIC (ISO 9362) format check. | Base | Developer tools | $0.002 | 2026-10-01 |
https://x402.agentindex.world/validate/luhn Luhn (mod 10) checksum validation, as used by most payment card numbers. | Base | Developer tools | $0.002 | 2026-10-01 |
https://x402.agentindex.world/validate/vin North American VIN check-digit validation (NHTSA standard, position 9) plus WMI manufacturer lookup for a small set of known codes. | Base | Other | $0.002 | 2026-10-01 |
https://x402.agentindex.world/web-read Fetch a URL and read the web page as clean Markdown - navigation, ads and boilerplate stripped, links resolved, plus a real token count. The same extraction /search uses on result pages, exposed standalone for a URL you… | Base | Web data | $0.002 | 2026-09-28 |
https://x402.agentindex.world/base/allowance ERC20 spending allowance an owner has granted a spender on Base mainnet, via allowance(owner,spender). | Base | Onchain data | $0.003 | 2026-10-03 |
https://x402.agentindex.world/base/block Fetch a Base mainnet block header and transaction hashes by number, tag (latest/earliest/safe/finalized), or hash via eth_getBlockByNumber/eth_getBlockByHash. | Base | Onchain data | $0.003 | 2026-10-03 |
https://x402.agentindex.world/base/code Check whether a Base mainnet address is a contract via eth_getCode - returns bytecode size, zero for an externally-owned account. | Base | Onchain data | $0.003 | 2026-10-03 |
https://x402.agentindex.world/base/erc1155-balance ERC1155 multi-token balance for a wallet and token id on Base mainnet via balanceOf(address,uint256). | Base | Onchain data | $0.003 | 2026-10-03 |
https://x402.agentindex.world/base/erc20-balance ERC20 token balance for a wallet on Base mainnet - balanceOf() and decimals() batched into one Multicall3 round trip. | Base | Onchain data | $0.003 | 2026-10-03 |
https://x402.agentindex.world/base/live-balance Native ETH balance plus up to 20 ERC20 token balances for one wallet on Base mainnet, in a single Multicall3 round trip regardless of token count. | Base | Onchain data | $0.003 | 2026-10-03 |
https://x402.agentindex.world/base/nonce Next transaction nonce for any Base mainnet wallet via eth_getTransactionCount - how many transactions it has sent. | Base | Onchain data | $0.003 | 2026-10-03 |
https://x402.agentindex.world/base/quote Slippage estimate, swap quote, and best DEX price on Base - compares Uniswap v2, Uniswap v3, and Aerodrome on-chain via Multicall3, returns amount received, chosen path, and price impact. | Base | Onchain data | $0.003 | 2026-10-04 |
https://x402.agentindex.world/base/total-supply Total supply for an ERC20 (normalized by decimals()) or ERC721 (raw count, no decimals) contract on Base mainnet. | Base | Onchain data | $0.003 | 2026-10-03 |
https://x402.agentindex.world/classify Text classification with your own custom labels (2-20) - categorize a support ticket, a review, or any text into the best-fitting label, with a confidence score and an alternate label. Powered by Jev, falling back to a … | Base | Inference | $0.003 | 2026-09-30 |
https://x402.agentindex.world/pii-check PII detection: flag whether text contains personally identifiable information (name plus contact details, email, phone, address, government ID, financial account) with a confidence score. Powered by Jev, with an automat… | Base | Developer tools | $0.003 | 2026-09-30 |
https://x402.agentindex.world/base/estimate-gas Gas estimate for a Base mainnet swap or any other call (to/from/value/data) via eth_estimateGas, without broadcasting a transaction. | Base | Onchain data | $0.004 | 2026-10-05 |
https://x402.agentindex.world/base/basename Resolve a Basename, Base's native ENS-equivalent, to its wallet address via the L2 Basenames resolver. | Base | Onchain data | $0.005 | 2026-10-05 |
https://x402.agentindex.world/base/can-sell Can I sell this token? Honeypot check that simulates a real buy then a real sell of a Base mainnet token in one atomic on-chain call via Uniswap V2 - if the sell reverts, that is a honeypot, reported with the exact deco… | Base | Onchain data | $0.005 | 2026-10-04 |
https://x402.agentindex.world/base/contract Contract introspection on Base mainnet - is it a contract, bytecode size, best-effort owner(), and whether it's a proxy. | Base | Onchain data | $0.005 | 2026-10-05 |
https://x402.agentindex.world/base/erc20-transfers ERC20 Transfer event logs for one token over a Base mainnet block range (max 2,000 blocks) via eth_getLogs. | Base | Onchain data | $0.005 | 2026-10-05 |
https://x402.agentindex.world/base/simulate Simulate a Base mainnet transaction before sending it - will it succeed, estimated gas, and the decoded revert reason if it would fail. | Base | Onchain data | $0.005 | 2026-10-04 |
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.