151 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
ERC-20 metadata plus B20 signals for any Base address: name, symbol, decimals, total supply, best-effort paused/cap, bytecode size, and whether the address carries the factory-issued 0xB200 prefix. Works on plain ERC-20s...
Confirm a USDC payment actually settled: given a tx hash (and network), returns whether it succeeded and the USDC transfers it contains (from, to, amount). Optionally check it paid a specific address at least a minimum a...
Public holiday and business-day calendar for US and UK: is a date a business day, add N business days, count business days between dates (net of holidays), and list a year's holidays. $0.01 per call in USDC on Base via x...
Which x402 API should I call? API recommender / discovery for agents: describe the need in plain words; get the best x402 endpoints from the WHOLE Bazaar (36k+ endpoints, re-indexed every 6 h) ranked by relevance, real 3...
Boolean verdict with reasons: is this address a real factory-issued B20 on Base? Checks the 0xB200 address prefix, ERC-20 readability, and whether the B20 feature set is activated on the registry.
Your own settled calls in the shape a finance system posts: one row per payment with what was bought, the amount settled, the quoted ceiling where one applied, and the evidence - settlement transaction, sha256 of the byt...
On-chain x402 settlement summary for an address from the decentralized x402 Base subgraph on The Graph Network. POST {address}. Returns lifetime stats as payer + recipient (totalPayments, totalVolume, first/last seen), r...
Checks any x402 endpoint's unpaid 402 response: x402 version, accepted scheme, network, asset (is it USDC), price, payTo, https resource url, description, and Bazaar discovery metadata validated against its schema. Makes...
x402 endpoint check. Check an x402 seller before you pay it: decode any public endpoint's 402 payment requirements without paying (v1 body or v2 header) into USD price for native USDC, network, asset, recipient, scheme a...
Use when a Brazilian postal code needs to become a real address — filling a form, validating a delivery, completing a customer record. JSON body { cep } (8 digits). Returns street, complement, neighborhood, city and stat...
Read the USDC balance of any address on Base, Polygon, Arbitrum, Optimism, Ethereum, Monad, Celo, Avalanche, Sei, or Arc. Read-only on-chain call. The minimal single-token read for payment flows - for EVERY token a walle...
Header + summary for a base block by number (or "latest"): hash, timestamp, tx count, gas used and base fee.
Pre-payment check of an x402 endpoint: one unpaid request, decodes the 402 offer (v1/v2): network, USDC or not, USD price, payTo, testnet, red flags.
Settlement assurance for a completed x402 payment on Base or Solana: confirm the transaction succeeded (0x hash or base58 signature), match the USDC transfer to an expected wallet and amount, format a receipt, and option...
x402 test endpoint - pay once and get an itemized receipt with network, amount, payer and transaction
x402 audit of a seller. Audit an x402 seller before an agent buys from it: decodes the endpoint's 402 terms without paying, OFAC-screens each payTo address, reads its account type and nonce on the payment network, checks...
x402 Settlement Review: Replay and Double Charge — Reviews pasted seller-side x402 code that accepts the PAYMENT-SIGNATURE header, talks to the facilitator and delivers the goods (the cash register), for the silent failu...
Base payment check. Returns pong after settlement.
Full x402 endpoint audit: verifies the 402 challenge, payment fields, Bazaar discovery metadata, and the origin's discovery surfaces (llms.txt, openapi.json, .well-known/x402, discovery/resources), returning a 0-100 scor...
Wallet balance on Base: the native ETH balance of any address, read live from the chain. Input: address
Build the EIP-3009 transferWithAuthorization typed data for a gasless USDC transfer on Base/Polygon/Arbitrum/Optimism/Ethereum/Monad/Celo/Avalanche/Sei/Arc - the exact EIP-712 object an agent signs with its OWN key to au...
Fetch any URL (web scraping / URL fetch) and get the raw content: HTML/JSON/text as text, images and PDFs as base64 (for multimodal LLM input), or markdown. Final URL after redirects, status, content type, size. Fetched...
Is this x402 endpoint safe to pay? Check it before your AI agent pays: go / caution / no_go, the recommended payment option, and why (payment would fail, over your budget, price above advertised, not HTTPS, unknown token...
Probe any URL and decode its HTTP 402 payment requirements (price, asset, network, pay-to) into clean JSON - what an agent needs to decide whether/how to pay. Read-only; does not pay.