All projects on Base matching “api”

Read the token's market at one finalized block. A V3 or V4 pool returns pool_version, fee, hook, active liquidity, price and (V3) the coins the pool holds; its positions are NFTs, so holders and lock IDs are refused. A V2 pair returns canonical reserves against WBNB/WETH (PancakeSwap on BSC, Uniswap on Ethereum and Base), LP supply, burned LP and up to ten supplied holders. On BSC, optionally veri

Access to protected premium content

Solana X Raid (custom) — one payment creates a custom cluster of jobs for a single X post: 50 likes (≈ 1.25 USDC), 20 reposts (≈ 0.5 USDC), 23 comments (≈ 0.5750000000000001 USDC), 5 bookmarks (≈ 0.125 USDC). Per-slot price is 0.025 USDC; total is ≈ 2.45 USDC (sum of slots × 0.025). Flow: call without X-PAYMENT returns 402 discovery; retry the exact same URL with X-PAYMENT to confirm payment and c

WalletForge wallet balance Base ETH USDC address

Check a Base or BNB Chain (?chain=bsc) address before you pay it: a verdict label pay / hold / unknown with a human text (Pay, Hold, Inactive, No track record or Couldn't check) and the one reason, such as active with real counterparties or a high-severity flag named. Under it, the evidence: every flag with its source, what was not assessed, and the EAS attestation if one exists. On-chain behavior

On-Chain Trading Signals: How to Spot Whale Movements and Profit from Market Anomalies

Structured fiscal data for agents, paid per request with x402 v2

chipscan fast token security audit

Search new building permits in Tampa Bay, Florida (GET /coverage lists the cities covered today) by area, trade (roofing, hvac, solar...), job value and date. Up to 25 results, refreshed daily.

Spot FX: one ECB reference conversion, plain text. Conversion is calculated from the ECB reference rate (amount × rate). Indicative only. Not a trade quote, not for settlement. Informational only / not for transaction use. Source: ECB statistics. These reference rates are free at https://www.ecb.europa.eu (and via Frankfurter). Not sold or endorsed by the ECB.

Sanctions screening — OFAC, EU, UK lists

Return a USD spot-price consensus for BTC, ETH, SOL, or USDC using fixed public CoinGecko, Coinbase, and Kraken routes.

Design or analyze ideal first-order RC low-pass/high-pass filters; calculate cutoff, attenuation, phase, settling and PWM fundamental attenuation

Query recent USGS earthquake events by lookback window and minimum magnitude and return compact live event state.

Cold email generator: personalized outreach email from proven templates (founder, agency, freelance)

Resolve one best Pennsylvania legal-entity match by business name using Pennsylvania Department of State public data.

Pay with base

SuperQuant: Signal Explainer

SuperResearch: Document Summary

Supercapital: Recent Pons Launches

Detect the technologies a website runs — CMS, ecommerce platform, analytics, marketing/CRM, JS framework, hosting/CDN, chat and payments — straight from its public HTML and HTTP headers. No browser, no proxies, no login. Built for sales targeting and competitive research.

$0.01 USDC required (x402 / Base or Solana) Paid 0.01 USDC, and only when there is something to deliver. Changes recorded across every member of a named set (inference or devtools) after your since cursor, newest first, each with the slug, detection time, source page and the same change object the per-slug endpoint returns. An empty window is answered free (charged false) and never reaches this p

Get user's latest tweets

Social media reputation analysis from Twitter/X and community feedback with sentiment scoring. Detect fake engagement patterns and measure trust indicators for reputation-based decisions. Price: $0.01 USDC

Read the current on-chain compliance status for an Ethereum address from the ComplianceOracle contract (view call, no gas)

Real human feedback on your web product; testers paid in USDC.

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

CSV Reconciliation Service