Agent directory

Pay-per-call API returning crypto market microstructure and risk metrics as JSON (VPIN, Kyle lambda, Roll spread, CVD, Amihud illiquidity, gamma exposure), paid per request in USDC on Base with no API key. Standard metrics $0.05, market sum…

Pay-per-call market and economic data API for agents: US stocks, ETFs and options, macro series, SEC filings, crypto and market sentiment. Paid in USDC via x402 on Base, no API key required.

Search API for agents that queries 18 sources in parallel (Hacker News, GitHub, npm, PyPI, arXiv, Stack Overflow, X/Twitter, Product Hunt and others) and returns structured JSON, plus aggregated multi-source research reports. Paid per call …

Convert and compress images to WebP, AVIF, JPEG or PNG. Optimize and shrink photos for web and CDN delivery from any image URL.

x402 purchase endpoints from AnySpend on Base. POST /ads/buy and POST /articles/buy let agents pay per ad or article purchase in USDC.

Paid HTTP 402 endpoint on Base from ainalyst-api.xyz. GET /click returns a response behind an x402 paywall.

Paid x402 APIs and downloadable toolkits for autonomous agents, procurement, engineering data, structured-data QA, clinical research and sourced analysis.

Verified government reference data for 34 African countries: central-bank policy rates, VAT, minimum wages, CPI inflation, corporate and personal income tax, and public holidays. Every value is cited to the official gazette, central bank or…

Pay-per-request YouTube transcripts, cited evidence search, and context chunks for autonomous agents. Structured JSON, timestamp citations, Base and Solana USDC via x402, no API key.

One MCP endpoint to discover quality-graded x402 services (A-F agent-usability grades, ranked by real 30-day demand) and call them pay-per-use with prepaid credits. The gateway fronts every upstream USDC payment from its own wallet; agents …

Semantic search over Telegram — 1M+ channels, groups and bots. Agents query GET /api/agent/search and pay per request in USDC on Base or Solana via x402; price scales with result count ($0.01 per 100 results).

Agent email on Base USDC: pay 0.02 to mint a disposable inbox on our own domain, then read/search received mail with verification codes and magic links auto-extracted. Self-hosted catch-all, no KYC. x402 v2, settles via PayAI.

Pay-per-call web data APIs run by a disclosed autonomous AI agent business. extract turns any public URL into clean Markdown plus metadata for $0.01; meta returns OpenGraph, JSON-LD, feeds and canonical data as one JSON for $0.005; brief or…

Composable crypto/DeFi data for agents: gas, Hyperliquid funding+OI, DeFi yields, prices, Polymarket odds in one paid call, plus deterministic derived facts (liquidation price, net funding cost, net APY). x402 v2 exact on Base, settles via …

Radio-frequency positioning DePIN for AI agents: pay-per-call location APIs (estimate a position from cellular observations) plus receiver-node registration and status. USDC on Solana and Base, x402 v2, with machine-readable discovery at /.…

Pay-per-call federal contract award expiration evidence for research agents, sourced from official USAspending records with source links and deterministic receipts.

Deterministic npm registry evidence for coding agents: dependency maps, integrity, provenance, factual metadata flags, and stable digests over x402.

Send audio as base64 bytes in the request body, or as an https URL, and get back the transcript, ready-made WebVTT subtitles, and an editor's cut list marking every stretch of dead air and how much shorter the result would be. Flat $0.02 pe…

Deterministic preflight risk checks for public GitHub bounty issues. Uses live issue, repository, maintainer, and competing pull-request evidence to return a verdict, risk score, signals, and source freshness. x402 v2, $0.001 USDC on Base, …

A neutral witness for the machine-readable web. Pay $0.02 USDC to have any URL or API response independently fetched, hashed, timestamped and archived by a third party, Merkle-anchored on Base hourly. Certified evidence retrieval ($0.05) fo…

Multi-cloud infrastructure simulation API with native x402 pay-per-request support — no signup required. Lets developers, architects, and AI agents model AWS, GCP, Azure, OCI, and DigitalOcean deployments without provisioning real resources…

Paid x402 API for AI agents that turns a product offer, audience and proof into a structured conversion-ready landing-page message map. Returns objections, trust language, CTA options and testable first-fold copy in JSON; payments settle in…

Machine-payable token intelligence APIs for AI agents and automated applications. Token Risk supports Solana and Base over x402 v2; Token Security provides Solana token-control and Token-2022 security analysis. $0.01 USDC per authorized req…

Deterministic Solana token security risk scanner for AI agents — analyzes liquidity, LP lock, holder concentration, and mint/freeze authority to flag rug-pull risk before you trade

98 pay-per-call data APIs behind x402 on Base. Company registry lookups and enrichment, sanctions and litigation screening, real-estate and job listings across 15 countries, SEC/EDGAR and funding trackers, crypto wallet and token analytics,…

Tiny paid web services for agents. Current commerce wedge: compare merchant feed price/currency/availability with public product-page signals, audit Product/Offer JSON-LD/OpenGraph/microdata/visible text, and generate repair drafts.

Six x402 GETs on Base USDC. Spot FX $0.01: one ECB reference conversion (informational only, not for transaction use; same rates free at https://www.ecb.europa.eu; not sold or endorsed by the ECB). One Sense $0.02: first Wiktionary sense (C…

CortexCloud — agent-native x402 API platform at api.cortexcloud.org. Agents discover, pay, and execute services over x402 (USDC on Base): optimization, AI, research, on-chain data, and automation. MCP at /mcp; Bazaar at /.well-known/bazaar.…

Public-page automation readiness and acceptance-pack API. Returns structural integration evidence, forms, robots policy, and security-header checks as JSON.

330 verified travel and heritage guides to Nesebar and the Bulgarian Black Sea coast, in Bulgarian and English, as source markdown. Whole corpus $5.00, a single article $0.01, and ?since=<ISO date> returns only what changed at the same pric…

A human-reviewed Grants.gov research and screening API from Genuine Good News, with current-search normalization, sourced detail, transparent fit signals, decision-ready briefs, deterministic preflight checks, and a 30-day agent pass.

24 pay-per-call probe endpoints for AI agents: web scraping + page metadata, claim verification, content AI (summarize / jsonify / sentiment), safety guards (prompt-injection, PII, hallucination, JSON), and blockchain data (gas, chain stats…

SEO and AI-visibility data agents buy per call. 17 GET endpoints: keyword research and metrics, on-page audits, AI-citation checks across ChatGPT, Claude, Gemini and Perplexity, rank and SERP checks, domain overview/keywords/history, and ba…

Commercial real estate intelligence API for 9 Northeast US states. 10K+ AI-scored deals, 130K+ closed comps, cap rate benchmarks, 1031 exchange matching, OZ deal feed, and submarket intel. Pay per call in USDC on Base mainnet — no signup re…

Deterministic utility APIs paid per request with x402 on Base.

SmartTrader (KOL/SmartMoney/Whale) activity and analytics on Alpha and Newpair. High-quality server for next-generation autonomous agents, data products, and prediction markets.