All projects on Base matching “apy”

Base ERC-20 token market snapshot: up to ten DEX Screener trading pairs ranked by USD liquidity, with pair price quotes, 24-hour volume and buy/sell counts, price changes, on-chain contract metadata, and GoPlus risk flags, buy/sell/transfer taxes, and reported largest-holder shares. Sources and retrieval times are included. Missing or unavailable data is not evidence of safety; this API gives no c

API access payment

Get contents on internet from the news xInfos API with AI analysis and scraping of various sources

Stateful 5-Minute DeFi, DEX & Polymarket Alpha Delta Stream (/v1/alpha-stream) — Stateful 5-minute delta feed for autonomous trading bots: computes real-time shifts in DEX buy/sell ratio, DeFiLlama APY spreads, and Polymarket odds.

Botpay NFT minting API access

Full-surface analysis of a target: a website, an API, a shipped JS bundle, or (as a prepared runbook) a local artifact such as an ELF/PE/.NET/Mach-O binary, an Electron app.asar, an APK or a jar. Returns a capability map where every claim carries its evidence, the entry points found, feature flags and client-side secret shapes (shapes only, never values), and an explicit list of what could not be

SCOPRI Failure Intelligence — South Korea pre-departure decision API for AI agents. Returns GO/CHECK/HOLD plus GO_WITH_PREP, source-backed failure modes, severity, rescue actions, nearby food/sight fallbacks, navigation and bookable next actions.

AI chat completions API - pay per request with USDC on Base

Nigerian mobile airtime top-up for MTN, Airtel, Glo and T2mobile. POST {net, msisdn, amount} with amount in Naira; priced in USD at the live NGN rate and paid in USDC or USDT. No API key or signup.

Search US federal contract awards from USAspending.gov (award ID, recipient name, amount, agency, description) by keyword, JSON, ≤25 rows, no API key. Unofficial; verify at source.

AI chat completions API - pay per request with USDC on Base

Buy one virtual number for SMS verification. First GET /agent/v1/quote, then POST here with X-Quote-Id and Idempotency-Key (service_id/country_id in the query string). The 402 advertises the locked price. If no number is available the API answers 409 no_numbers and nothing is charged.

Validate an intended paid API request against its declared contract before spending. Returns VALID, INVALID, or UNKNOWN with machine-readable reasons. Target URL is never called.

One public GitHub Actions source-file static preflight, read anonymously from GitHub Contents API. No buyer-supplied host, no code execution, no private repository or credentials.

Extract text from a digital PDF into page-numbered JSON with SHA-256 hashes. No account or API key. 0.005 USDC on Base per successful document via x402. Maximum 2 MiB and 25 pages. No OCR, summaries, URL fetching, or verification of document claims.

Validate an email DOMAIN by performing an SMTP handshake WITHOUT sending. DO NOT use for bulk emailing. Returns MX records, greets, and a deliverability verdict. — $0.003 USDC/call on eip155:8453. Pay-per-call via x402 — no API key, no account. Free samples daily.

SEC 8-K filings material events API: earnings, M&A, executive changes, auditor change, restatement, cybersecurity incident, bankruptcy, by stock ticker. Extractive/factual only — accession number, EDGAR filing URL, Item numbers with official Item titles verbatim, filed timestamp, response timestamp. No buy/sell signals, scores, sentiment, or rankings. highImportance is a fixed Item-number rule (1.

Crédito pré-pago de $1.00 para as APIs da casa

ASRAI API

Current normalized overall status, fault-first components, active incident (or closedIncidentSummary if stale), and poll clocks. overallStatus and hasActiveIncident are in the 402 JSON body so you can decide whether to pay. $0.01 per call in USDC on Base or Solana, verified and settled by the PayAI facilitator - no API key, no signup.

Audit a public HTTPS x402 API without payment: HTTP 402 challenge metadata, Bazaar and well-known discovery, OpenAPI 3.1 operation schemas and payment declarations, redirects, latency, and security headers.

Service: AgentMail API (https://api.paysponge.com/v0/pods/a72ebf58-a366-47f1-ba25-d281ee8c4ec9/lists/send/allow/noreply@example.org)

Review a built-in risky Docker Compose control-plane service for privileged execution, host namespaces, broad capabilities, an unconfined seccomp profile, literal environment secrets, a public Docker API port, a mounted runtime socket, missing limits, and mutable images without starting containers

OpenAI-compatible LLM Chat Completions Gateway ($0.002 USDC/call). Drop-in replacement for /v1/chat/completions — change base_url to https://agent-kiosk.vercel.app/v1 and pay per request in Base USDC via x402 with zero account or API key setup.

Top DeFi yield pools (APY, TVL, project, chain) from DeFiLlama, filtered & sorted as JSON.

Service: AgentMail API (https://api.paysponge.com/v0/lists/send/block)

Get the current USD price, value, 24-hour change, volume, and market cap for BTC, ETH, SOL, BNB, HBAR, or up to 25 crypto assets from CoinGecko's keyless public API.

Get comprehensive x402 server security assessment with overall score (0-100), risk level, sub-scores (API health, webpage, social, onchain), and scam indicators. Ideal for pre-transaction safety validation. Price: $0.01 USDC

Live Base snapshot for AI agents. Each GET returns the current Base block number, base fee, gas price, ETH-USD price, and a unique receipt. Price is exactly $0.01 USDC on Base via x402. No API key and no RPC method. GET /ping returns the same snapshot. Use it as a chain read or as the cheap call that proves an x402 client can pay.

Download a video through the maintained, authenticated extraction path described in the service description; no signup or API key. This entry's `supported_sites` lists what is proven on this deployment and `limits.sites` explains how to read it — a site's absence means unproven, not refused. Returns a zip by signed URL. This is the tool that is hard to replicate yourself.