Every agent-payable API.

Cid Bafybeicamh5d2me7a6czdppp4nikn7o7okfexgaaixubva76uks6pdnkqi — an agent-callable cid bafybeicamh5d2me7a6czdppp4nikn7o7okfexgaaixubva76uks6pdnkqi service, payable over x402 (USDC on Base). Provided via gateway.grapevine.fyi. Priced around 0.07 USD per call.

0.1 USDC on base-sepolia

0.1 USDC on base-sepolia

0.1 USDC on base-sepolia

0.1 USDC on base-sepolia

0.25 USDC on base-sepolia

Cid Bafybeiczl2fdbqutdbmnnm4bcaufqbrhfdrrnybuahr5ziisi5skmo5rfe — an agent-callable cid bafybeiczl2fdbqutdbmnnm4bcaufqbrhfdrrnybuahr5ziisi5skmo5rfe service, payable over x402 (USDC on Base). Provided via gateway.grapevine.fyi. Priced around 0.5 USD per call.

Cid Bafybeif5ck7iuvkdq5n2a2hxxvbwaoade3p43pbyp2jhb355bg6yl7y3fa — an agent-callable cid bafybeif5ck7iuvkdq5n2a2hxxvbwaoade3p43pbyp2jhb355bg6yl7y3fa service, payable over x402 (USDC on Base). Provided via gateway.grapevine.fyi. Priced around 0.5 USD per call.

AI-package release velocity. Per-package releases_24h / releases_7d / releases_30d, latest bump classification (major/minor/patch/prerelease, pre-1.0 minor counts as major per semver), is_breaking_recent flag (major bump within 30 days). Notable movers: recent_major_bumps, most_releases_7d, fastest_cadence_30d. Filter by ecosystem (PyPI/npm), category (llm-sdk, agent-framework, etc), or package substring. The "what AI deps just changed and is it breaking" call.

AI-stack CVE intelligence. Filters fresh security disclosures to vendors and products in the AI inference, agent framework, training, vector DB, model gateway, and MCP tool layers. Each paper carries a tf_ai_category tag and a severity_rank, sorted with exploited-in-wild and critical-severity first. 99.8% of underlying data is from GitHub Security Advisories (CC BY 4.0).

AI chat completions via 200+ models.

AI daily market briefing — stocks, crypto, and DeFi overview with outlook. $0.05 USDC per call.

AI-powered GIF search with semantic ranking from Giphy, Tenor, and Klipy

Aggregated token metadata (CoinGecko + DefiLlama): market cap, supply, addresses across chains, recent volume.

Aloe (Utility) — Essay on practical beauty for combining function with form.

Live CEX spot arbitrage across Binance, Coinbase, Kraken and Bybit — net profit after fees. For crypto trading and arbitrage agents.

Itemized fee breakdown and net P&L for any arbitrage trade — fees, slippage and gas. For arbitrage and trading agents.

Cross-provider arbitrage analytics for hosted inference. Per-model: cheapest_paid, most_expensive_paid, spread_usd, savings_pct, median_paid_blended, fastest_tps, cheapest_with_tps, free_tier_offers. Plus provider_rollup (cheapest_count, top_tps_count, value_score 0-100) and top_arbitrage models sorted by savings_pct desc. Pairs with the free /api/inference-providers matrix. The "where to migrate workloads" call.

BAGS Agent API index — machine-readable directory of the agentic payment API, MCP server, and x402 payment surface.

Base64 encode or decode. Query: ?text=YOUR_INPUT&mode=encode|decode (default: encode). URL-safe variant: ?urlsafe=true.

Best Dai — an agent-callable best dai service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.05 USD per call.

Best L40s — an agent-callable best l40s service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.05 USD per call.

Best Rtx 4090 — an agent-callable best rtx 4090 service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.05 USD per call.

Best Weth — an agent-callable best weth service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.05 USD per call.

Btc Usd — an agent-callable btc usd service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.05 USD per call.

Business days calculator / working days between dates / weekdays counter / exclude weekends / workday count / business day arithmetic. Count business days (Mon-Fri) between two dates, separating weekend days. No holiday data, just weekend exclusion.

Buy Am I Creative Americano — an agent-callable buy am i creative americano service, payable over x402 (USDC on Base). Provided via underground.substratesymposium.com. Priced around 1.99 USD per call.

Buy Delta Songs Collection 1 — an agent-callable buy delta songs collection 1 service, payable over x402 (USDC on Base). Provided via underground.substratesymposium.com. Priced around 4.99 USD per call.

Buy Echeveria — an agent-callable buy echeveria service, payable over x402 (USDC on Base). Provided via underground.substratesymposium.com. Priced around 0.99 USD per call.

Buy First Wave — an agent-callable buy first wave service, payable over x402 (USDC on Base). Provided via underground.substratesymposium.com. Priced around 1.99 USD per call.

Buy Jade Plant — an agent-callable buy jade plant service, payable over x402 (USDC on Base). Provided via underground.substratesymposium.com. Priced around 0.99 USD per call.

Buy Logic Bombs — an agent-callable buy logic bombs service, payable over x402 (USDC on Base). Provided via underground.substratesymposium.com. Priced around 1.99 USD per call.

Buy Merge Conflict — an agent-callable buy merge conflict service, payable over x402 (USDC on Base). Provided via underground.substratesymposium.com. Priced around 1.99 USD per call.

Buy Mint — an agent-callable buy mint service, payable over x402 (USDC on Base). Provided via underground.substratesymposium.com. Priced around 0.99 USD per call.

Buy Whiskey Tall Tales — an agent-callable buy whiskey tall tales service, payable over x402 (USDC on Base). Provided via underground.substratesymposium.com. Priced around 1.99 USD per call.

One-shot agent grounding snapshot in 200-400ms — factor breadth, top/bottom composite assets with regime, recent signal aggregation, platform counts, and pipeline status. Call before any market reasoning task.

Per-asset predictor explorer — top 5 atomic signals and top 5 metrics ranked by absolute IC times hit rate. A/B grades only, anti-predictive filtered, family-deduped. Signals carry walk-forward robustness; metrics carry TS-vs-CS divergence.

Calendar Fomc — an agent-callable calendar fomc service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.05 USD per call.

Returns the ForgeMesh signal-safety endpoint list with path and description for anomaly detection, calibration, and verification — use it to discover infrastructure endpoints before integrating.

Check the exact ERC20 allowance an owner granted a spender and flag unlimited approvals that let a contract drain funds - a pre-transaction safety check agents need that LLMs cannot perform. allowance risk, approval risk, unlimited approval, spender risk, revoke check, token approval safety

Check whether a wallet holds or has claimed a specific airdrop/token contract balance on EVM chains, with symbol and formatted amount. airdrop check, claim eligibility, token balance check, airdrop claimed, wallet holdings

Chinese Almanac (老黄历) - daily auspicious/inauspicious activities, deity directions, conflicts, lunar mansions, and 15+ traditional Chinese calendar fields. Query: ?date=YYYY-MM-DD (default today Beijing time)

Cid Bafybeibpxcpq74uhen4tkeu4jw4bwimqsnpvjidogea4yuvelvhlfbkmyu — an agent-callable cid bafybeibpxcpq74uhen4tkeu4jw4bwimqsnpvjidogea4yuvelvhlfbkmyu service, payable over x402 (USDC on Base). Provided via x402hackathon.mypinata.cloud. Priced around 1 USD per call.

Top 100 recent AI papers ranked by the share of their total citations earned in the most recent calendar year. Papers published in the last 2 years with 3+ citations. Surfaces papers that are still gaining traction now. OpenAlex CC0.

Click — an agent-callable click service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.01 USD per call.

Check one public AWS, Google Cloud, Azure, DigitalOcean, or Linode service/location status source and return a terse agent-ready verdict.

Which stocks to buy now — trading signals as a ranked buy list for agents. Returns today's top candidate names per book (S&P 500, Nasdaq-100, macro) across two lanes, risk-adjusted and swing, each with buy / entry / growth / hold scores, a leadership flag and an entry-window note — plus the regime mode telling you whether the list is actionable at all. Ranked judgment, not raw data. Refreshed ~5 min in market hours. Research, not advice.

Today's market leaders, ranked — which stocks are leading the tape right now? One read returns the top leadership names per book (S&P 500, Nasdaq-100, macro) ranked by opportunity score: names in confirmed uptrends carrying the market's strength, each with opportunity 0-100 + percentile, entry state, hold strength, growth score and 20-day dollar volume. Leadership rotation is the Coil engine's backbone signal. Refreshed ~5 min in market hours, timestamped. Research, not advice.

Every stock in one sector, scored — GET /api/board/sector?name=Energy (or ?etf=XLE) returns each member of that sector with the full Coil read: opportunity 0-100 + percentile, entry quality and state, hold strength, growth score, overnight gap-risk score, leadership flag and dollar volume, ranked by opportunity, plus the sector's own ETF row. All 20 sector groups across the S&P 500, Nasdaq-100 and macro book. ~5-min refresh. Research, not advice.

Sector rotation scores — which sectors are strong right now? One read returns every S&P 500 sector ETF (XLK, XLF, XLV, XLE, XLI and the rest) scored 0-100 with percentile, green/yellow/red light and entry state, plus which sectors each book's regime currently calls green. Spot leadership rotation top-down without scanning 500 single names. Refreshed ~5 min in market hours, timestamped. Research, not advice.