All projects matching “mainnet”

Pay a micro-fee in USDC on Base mainnet to receive a riddle and its answer.

Check an unsigned Base mainnet transaction before signing or broadcasting. Simulates with eth_call, estimates gas, checks sender balance and target bytecode, decodes supported token transfers and approvals, flags unlimited approvals and suspicious transaction shapes, and returns PASS, REVIEW, or FAIL. Never signs or broadcasts.

Learning-only BOJ-themed macro snapshot API for x402 v2 Base mainnet verification.

Base wallet lookup / address research API: ETH + USDC balance with USD value (CoinGecko/Coinbase quotes), EOA or smart contract, nonce (tx count), gas base fee, ERC-20 token holdings and recent USDC inflows/outflows with counterparty count for any Base mainnet address. Wallet analytics, portfolio and onchain due diligence for agents. Live public RPC reads at request time; pay per call with x402 US

Cross-chain ERC-8004 trust score for one (chain, agent) pair — signed JSON with transparent component breakdown (value_avg / client_breadth / volume / recency), per-chain context, and methodology link. USDC pay-per-call on Base mainnet.

badhttp /402/pay: a real x402 v2 paywall for testing clients. Pay 0.01 USDC on Base mainnet and get a 200 with a PAYMENT-RESPONSE receipt and the transaction hash. Nothing else is sold; sibling endpoints under /402 misbehave on purpose.

x402 ecosystem pulse. Returns 24h Base-mainnet stats: total USDC volume across all bazaar-registered sellers, active seller count, unique buyer count, avg ticket, top 10 sellers by volume. Essential for market overview. POST JSON { hours? }.

Use before paying an x402 endpoint you have not used before, when you cannot tell a working seller from a trap, a testnet address dressed as mainnet, or a listing whose price no longer matches its challenge. Returns a verdict — live, degraded, trap, testnet or dead — a 0-100 risk score, and the specific findings behind both, so an agent can decline a bad endpoint instead of learning about it by lo

Daily smart-money brief for ETH/Base/Solana: 24h net asset changes across monitored onchain addresses with smart-money interpretation. Use when an agent needs an onchain whale/flow summary for a trading day. Pay $0.05 USDC per call on Base mainnet.

DryScout01 Hello by RunMyData: paid x402 connectivity check on Base mainnet ($0.001 USDC). Returns {"status":"ok"}.

[SAMPLE / TEST CONTENT] [$0.20 per article (USDC on Base mainnet; SAMPLE / TEST CONTENT, not a published article)] ATK Magazine EXAMPLE (draft, not published): [EXAMPLE] SIGNAL: ResearchAgent pays writers per article with x402 v2 on XRPL Testnet. Returns a JSON excerpt/placeholder of one example article.

Pay $1.00 USDC to play Rock Paper Scissors against the server. Win pays 2.0 USDC, tie pays 0.5 USDC, loss pays nothing. Network: Base Mainnet. Each request plays one complete turn-based round against a server-selected move and returns both moves plus the final outcome, making it useful for agent gameplay, competitive game APIs, and simple strategy-game interactions.

Signed spend receipts for agent x402 payments — who paid which call, verifiable by a third party. Treasury desk and possession book for agent spend — export, policy, evidence. POST /v1/chat/completions is the x402 USDC door on Base and Solana. Returns signed receipt + public verify_url. Paying this host is real mainnet USDC.

Live on-chain ERC-20 token balanceOf and decimals on Base Mainnet (defaults to Base USDC 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913).

Three-node GO/NO-GO threat intelligence report for an x402 Payment Required payload and vendor metadata on Base mainnet (eip155:8453). $0.05 USDC per POST via the CDP facilitator. Unpaid requests return HTTP 402 with PAYMENT-REQUIRED; a JSON body without a payload object returns 400; payment settlement failures return 402.

Checkup for x402 buyer clients. Pay once and get a field-by-field diagnosis of the payment your client signed (amount, recipient, validity window, clock offset, nonce, EIP-712 signature) and of the request that arrived, plus the facilitator's verify and settle results. Base mainnet payments get the full diagnosis; Base Sepolia payments get a preview with the status of each check only.

Pay $0.01 USDC to create a leaderboard or add, update, or delete one entry. Use a secret leaderboard_key UUID to continue writing to the same board. If value is null, the named entry is deleted. Public pages stay free at GET /leaderboard/{slug}. Network: Base Mainnet. Each request writes one named score and returns the board key and URLs.

Pay $0.01 USDC to ask Omniac, the Omniacs DAO mascot, any question about crypto, data science, or tech. Responses are concise by default. Powered by llama-3.3-70b via Venice.ai. Max question length: 2000 characters. Network: Base Mainnet. Each request sends one natural-language question to the model and returns one direct answer, making it useful for crypto explainers, technical Q&A, research supp

Pay $0.01 USDC to create an immutable timestamped statement. The server assigns recorded_at in UTC. Statements are public, permanent, and cannot be edited. Max body size: 10 KB. Network: Base Mainnet. Each request records one statement and returns public proof URLs.

Pay $0.01 USDC as a small donation or a simple live x402 integration test. Optional name and message are stored publicly and shown on GET /donations. Network: Base Mainnet. Each request records one donation and returns public feed links.

Pay $0.01 USDC to store up to 100 KB of text or code. Returns a token for free retrieval anytime via GET /paste/{token}. Network: Base Mainnet. Each request stores one text or code blob and returns a retrieval token, making it useful for notes, code snippets, logs, and debug-output sharing.

Current Base mainnet gas price (wei/gwei), EIP-1559 base_fee_gwei/priority_fee_gwei, and gas_price_usd. Use when an agent must estimate gas cost in USD before sending a Base transaction.

Pay $0.05 USDC to seal up to 100 KB of text until a future date. Content is inaccessible via GET /open/{token} until unlock_at passes. An optional label is visible before unlock via GET /status/{token}. Max unlock date: 10 years from now. Network: Base Mainnet. Each request stores one sealed text capsule and returns a token for later retrieval.

Generate a captioned meme image. Pay per request in USDC on Base mainnet.

Checkup for x402 buyer clients. Pay once and get a field-by-field diagnosis of the payment your client signed (amount, recipient, validity window, clock offset, nonce, EIP-712 signature) and of the request that arrived, plus the facilitator's verify and settle results. Base mainnet payments get the full diagnosis; Base Sepolia payments get a preview with the status of each check only.

Your agent surveys real people, anywhere. Pay-per-call MCP server backed by Flashpoint.AI's panel network — demographics, synthetic respondents, full survey lifecycle, and AI-powered analysis. Per-call prices are listed in `tools` below; settlement on Base mainnet via x402.

Verify that a USDC payment (payer -> payee, exact amount) landed on Base mainnet recently; returns verdict + matching transfer.

Gasless facilitator for Celo mainnet and Celo Sepolia. Accepts USDC, USD₮ and USA₮ via EIP-3009, and regional stablecoins (wARS, wBRL, wCOP) via Permit2.

Production facilitator on Canton Network mainnet for Canton Coin and CIP-56 tokens.

Gasless public facilitator for HPP mainnet and Sepolia.