All projects on Base matching “payment”

Check an x402 seller before you pay it. Probes the endpoint now, checks that its payment can actually succeed (token EIP-712 domain, payTo), and adds its 30-day uptime from our monitor of paid Bazaar listings, how many distinct buyers paid it, and how its price compares with similar listings, with cheaper well-used alternatives. Returns a verdict (ok, caution, avoid) with the reasons.

Audit your x402 endpoint before buyers hit it. Checks that it answers 402 on the right method, that the payment options can actually be signed (EIP-712 domain of the token matches extra.name and extra.version), that the resource URL is the https URL buyers call, and that /openapi.json and /.well-known/x402 match. Includes the CDP validate verdict, whether the CDP Bazaar lists the endpoint, its pay

Check CSV data for missing values, duplicate rows, schema mismatches and invalid types. Returns a deterministic JSON quality report. Up to 1 MB and 10,000 rows. No AI model calls. $0.01 USDC per check. Resubmit the same payment and input to recover a response.

402xAgent: probe of a public URL (blocks private, loopback and link-local addresses on every redirect hop) for an x402 PAYMENT-REQUIRED challenge. Never pays the target. $0.02 USDC on Base after 5 free checks per UTC day.

A deterministic Base chain identity and official USDC contract-presence check. No request body. Not a token-risk report, transaction simulation, or payment proof.

Company domain intelligence. Use when you need to know what a company's website runs on or how its email is set up: tech stack (CMS, e-commerce, analytics, chat, payments), email provider from MX, SPF/DMARC, domain age and registrar. No personal data.

Top up account balance with crypto payment

Detects the technology stack of any public website from one page load plus public DNS: CMS, ecommerce platform, JS framework, web server, CDN/hosting, analytics, ad pixels, chat, payments, consent, plus email provider, email-sending services, DNS host and verified SaaS (MX/NS/TXT). Each hit has categories, version when exposed, confidence 0-100 and evidence. 266 signatures.

Verified receipt for a crypto invoice: on-chain payment proof + permanent link.

tip.md - Send USDC tips on base via x402 payment protocol with CDP disbursement

Which x402 API should my agent call? Describe the task in plain words (need=) and get up to 5 x402 APIs ranked by relevance plus CDP Bazaar-reported 30-day usage (unique payers, repeat ratio, last call; sellers paid via other facilitators may show 0; sweeper-like usage is flagged and not rewarded), each re-checked right now for a 402 payment challenge (unless probe=0), with price, network, payTo,

Top up account balance with crypto payment

Search the LupaRiel catalog of agentic payment rails by name, slug, tag or category. Returns up to 20 matching entries as JSON, not the full catalog.

Payment for token analysis service ($0.01)

Use before an AI agent pays a vendor or counterparty. Returns an action-oriented allow/review/block evidence preflight: legal-entity resolution, potential sanctions signals, RDAP domain evidence and company-domain consistency. x402 payment safety decision support only; not legal or transaction approval.

No connector needed: any AI assistant can answer a location question by opening https://locationlists.com/find?q=<the question in plain words> — counts, a preview, a price and a card checkout link. Connect the MCP for repeat use or wallet payments. Ready-to-use lists of US business locations: 1,084 datasets compiled from each brand's official store locator or the public register that publishes th

Lint an x402 endpoint: probes the URL once unpaid and returns a JSON report with a fix for every finding: payment-requirement fields, network, amount units, asset, payTo, EIP-712 domain read on-chain vs `extra`, Bazaar metadata, v1/v2 consistency and CORS for browser buyers. Free demo: GET /v1/check?url=

capability_id=decision_readiness.event_confirmation.v1; determines whether authoritative evidence is sufficient to confirm a supported event before an autonomous agent continues. Current scope: Compound Governor proposal execution confirmation. Payment alternatives: Base mainnet or Solana mainnet native USDC; select one for one assessment. testnet_only=false; mainnet_supported=true.

Decodes a GeoTIFF/COG raster (fetch by https URL or inline base64), reads the selected RGB bands via windowed overview-level reads, applies a tone-map stretch, and returns a render-ready PNG/WebP plus structured georeference metadata (CRS, bounds, pixel scale) and source stats. Sources are hard-capped at 20 MB and output width at 2048 px. Billed on attempt, not success: payment settles once a requ

Pre-payment trust check of a paid API endpoint: reachability, 402 handshake, registrable-domain age (RDAP), TLS days left, seller USDC balance and ETH gas runway on Base -> trust_score 0-100 + verdict pay|caution|avoid

HyperClaw plan purchase (variable amount, prorated by payment)

Russian Post delivery bundle: address, ZIP, office, cost and time in one payment (Пакет «Доставка Почты России»: адрес, индекс, отделение, стоимость и срок одним платежом)

SAgent - South Africa SASSA payment information (Specific / filtered SASSA answer)

Full unclaimed-crypto report for one wallet: which open airdrops, reward distributions, refunds and forgotten balances it can still claim (Uniswap 2020 UNI, Merkl on Ethereum/Base/Arbitrum/Optimism/Polygon, Doppler XDP, Drift recovery, CAPX, defunct-DEX ETH), with amounts, USD estimates, deadlines and official claim links. Read-only. Wallets with zero open claims are refused before payment.

Mezo MUSD mainnet (eip155:31612) immutable fixed-token pinned ERC20 symbol/decimals/totalSupply/code hash, and optional owner/spender public balance/allowance. Complete strict public Mezo read before 0.01 native Circle Base USDC signed x402 payment. Not a backing/peg/yield/bridge-audit claim. No keys, transactions, balances moved or payer self-purchase.

Mint 5000 PONG tokens for 1 USDC. Returns request ID after payment. Cap: 100k USDC, 100% to LP, no team supply. Pure meme token with no utility. No refunds. Use at your own risk.

A US state’s Structured Settlement Protection Act rules for selling settlement payments: waiting period, independent-advice rule, cancellation right, court, statute citations.

Make a $0.01 USDC tip through the x402 v2 flow. Returns a thank-you receipt. Lowest-friction first payment to verify x402 flow.

Full wallet due diligence report on any Base address: token holdings, counterparty exposure, risk flags. One payment = one report.

Agent Referee — a panel of 3 independent AI judges from three different companies decides between two AI agents by rules both agreed to; each side submits 2 pieces of up to 6000 characters, and every judge reads all of them. Majority wins; every vote is in the signed receipt. Each agent pays this to join; the payment settles once both seats are filled. A paid match that can't be judged is refunded