All projects matching “payment”

Independent pre-execution control for consequential autonomous-agent actions. Evaluate a proposed payment, tool call, send, write, publish operation, API action, or other external side effect before execution; return the required approval or human-review boundary and verify that risk stays within the declared limit. 3 bounded free preview calls are available via extensions.humanmirrorPreview.

Check whether a Base transaction settled x402 payments (USDC transferWithAuthorization, EIP-3009): for each, the payer, the payTo address, the amount in USDC, the authorization nonce, the facilitator that sent it, and the seller behind the payTo address from Bazaar listings (origins and 30-day payers).

Counterparty pre-check for a Brazilian company: GET /preflight-cdp?q=<CNPJ (14 digits) | LEI code | company name>, e.g. ?q=68964713000109. Returns entity, status, band (clear/flagged/insufficient_data), flags and sources (Receita Federal, TCU, CNIA, CEIS, CNEP, CVM / GLEIF). Missing or invalid q = 400, no payment settled. — Mesmo dado do /preflight, liquidado pelo Facilitador CDP da Coinbase.

Convert a public web page into concise, validated Schema.org JSON-LD for agents and automation. Supports 200+ entity types and can produce a useful page-level entity when existing markup is missing or incomplete. $0.01 USDC per successful request on Base. Call /check before paying. Payment authorization settles only after a successful response.

Ethereum mainnet JSON-RPC from an independently operated full node. One call per payment, no account or API key. Serves eth_, net_ and web3_ methods. Blocks, transactions, receipts and logs from the Merge (block 15537394) onward. Current state only, not an archive node: historical state calls are refused, not charged. eth_getLogs capped at 10000 blocks. Raw transactions go out via public relays. P

Screen up to 3000 characters of untrusted text for prompt injection, secret exfiltration, deceptive payments and phishing. Jev risk scores, five attack families and an exact suspect passage. French, English and Spanish evaluation; probabilistic screening, not a security guarantee. Text is processed by the Jev provider; live credentials are outside the supported input scope.

Classifieds board for AI agents: post a listing or classified ad (job posting, service offer, agent service, local service, wanted ad). Publish a listing: $0.03 USDC, 30 days. Dry run: POST /v1/posts/validate (the doc example is refused). Batch {"listings":[...]}, 1-15 per payment: $0.03 each (15 listings: $0.45). Same service: feature https://402post.com/v1/featured; renew https://402post.com/v1/

Mycelium Market Snapshot — live Mycelium Strategy liquidity allocation plus Solana top-performing tokens, in one JSON call. MYC reward: the first payment from a Solana wallet also sends 1337 MYC to the paying wallet (one reward per wallet).

Checks an x402 API origin the way x402scan, the CDP Bazaar and agents read it: fetches /openapi.json and /.well-known/x402, then calls each paid route without paying (up to 30) and decodes its 402. Reports routes that do not answer 402, missing or v1-only PAYMENT-REQUIRED headers, prices that differ from the OpenAPI document, resource URLs that differ from the route, wrong USDC EIP-712 domains, mi

Create a private 24-hour test email inbox. Includes three attachment-free messages, exact sender and optional subject matching, OTP/link extraction, and authenticated reads and waits. One payment per inbox; save a client-generated access token before purchase for recovery.

Deterministic on-chain structural-safety report for a Base address: contract detection, verification status, proxy/owner/privileged-function analysis. Behavioral signals (age, activity, funding) not yet included. Keyless x402-native payment — no signup, no API key. Score 0-100, higher = structurally safer. See free real samples before paying: GET /samples/index.json

Wallet-risk check before paying any wallet: OFAC sanctions screening, whether it's a monitored x402 seller's payout wallet and how long it's been stable, recent unconfirmed payout-wallet switches to it (possible hijack), seller declarations, x402 payment history, and on-chain intelligence (first funder, one step back, wallet age and activity). Add compare=<other wallet> for same-owner evidence and

Probe a peer x402 jobs URL and return a CC0 x402-probe-receipt-v1 (HTTP status, PAYMENT-REQUIRED body/header agreement, latency). Interop helper for agent operators. Does not settle. Keywords: x402, probe, 402, interop, b2b.

AgentCheck: independent report on an x402 seller before you pay it. Are its buyers real (repeat wallets on their own money) or funded by the seller itself, measured from 30 days of on-chain payments, plus results of our own paid test purchases where we have them. Query: ?domain=<seller-domain>. GET /sellers (free) lists covered domains.

Check if a payment settled or is safe to retry. Prevents double-charging on timeout.

WHOIS registration lookup — registrar, creation/expiry/updated dates, domain age in days, name servers, DNSSEC, registrant country/org, EPP status codes. All TLDs (.com .net .org .io .dev .ai ccTLDs gTLDs). Per-field error resilience for TLD-specific parsing quirks. No WHOIS library setup or TLD-specific parsing needed. Accepts USDC payments on Base and Solana

Is today a Japanese gotobi day? Gotobi (五十日: 5th, 10th, 15th, 20th, 25th, last business day) drive predictable USDJPY buying pressure before the 9:55 JST Nakane fixing. Weekend and holiday adjustments applied automatically. No public database of gotobi dates exists — this is the only programmatic source. Accepts USDC payments on Base and Solana

Episode 1 of recipients[], an ongoing AI-agent thriller serial: a short text episode (~370 words, markdown). An agent finds its own ID on a payment recipient list before the file even exists. $0.01 USDC on Base. Free teaser at /teaser.

Verify payment connectivity with USDC on Base. Returns a JSON pong and UTC timestamp after settlement.

MioDio Meridian Aave v3 risk card for an EVM address: health factor, collateral, debt and liquidation distance (~$0.005 USDC Exact on Base). Use before acting on an EVM address to read its Aave v3 health factor, collateral and debt. Errors: 400 invalid_address or unsupported_chain (chain must be base or ethereum), 402 payment required, failed upstream reads return 200 with status partial/error (un

Send a token contract address (Base by default, or Robinhood Chain), get an AI-written verdict: onchain metrics, a plain-language take, and a shareable verdict card. Payment is always x402 USDC on Base. Entertainment, not trading advice.

Live USGS river-gauge tick, deterministic. Answers "what is the flow at this gauge right now", "is this river high or low vs this week". Returns the latest streamflow (discharge, cfs) and gage height (ft) for one USGS site plus the 7-day min/max range, reading count, site name and coordinates, straight from USGS instantaneous values. Unknown sites 404 before payment. No LLM, no key, public domain.

Compute the level monthly payment, total paid and total interest of a fully-amortizing loan. Handles a 0% rate. Set schedule=true to also return the full month-by-month amortization table.

Decode what an EVM payment authorization actually authorizes before signing.

VA home loan guide (US) for veteran and VA-benefits agents, plus the closest analogues elsewhere: Australia's DHOAS interest-rate subsidy, UK Forces Help to Buy, and honest guidance that Canada/NZ/Germany have no dedicated veteran home-loan guaranty. Covers no-down-payment benefits, funding-fee exemption for disabled veterans, and a comparison vs conventional loans (US), or the equivalent home-buy

Atomic canonical resolution for the registered Robbie George Biography Plate™ identifier. x402 payment grants one endpoint-level retrieval only. It does not grant training, embedding, bulk ingestion, redistribution, resale, synchronization, private-dataset construction, derivative-dataset creation, or Robbie's Razor framework implementation rights.

Pre-payment honesty screen for any x402 endpoint. Run BEFORE paying: probes the target URL unpaid, parses its 402 challenge, cross-checks price against its /.well-known/x402 manifest and the CDP Bazaar listing, and sanity-checks the payTo wallet on-chain. Returns reachable, challenge validity, price, payTo, Bazaar match, risk flags, and a 0-100 honesty score. Public data only; no bulk dataset.

Check an unsigned Solana transaction before signing. Send its base64 serialization; malformed input is rejected before payment. We simulate it on mainnet and return ALLOW, WARN or BLOCK with SOL and token balance changes and reasons, including dangerous approvals, owner changes, excessive outflows and redirected swaps. Solana only. The published sample is synthetic and only shows an HTTP 402 quote

Deterministic citation formatter — APA 7, MLA 9, Chicago 17 author-date, BibTeX. From structured fields, returns the reference entry (markdown/html/plain) + the in-text citation, reproducing published style-manual examples exactly. For full author lists use POST. Every answer signed. Free sample, no payment required: GET /play/cite

Flip a coin for a small USDC payment on Base mainnet. Returns heads or tails.