| Unknown Tiktok Hashtag — an agent-callable tiktok hashtag service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.14 USD per call. |  portalsprotocol.com | ai | $0.14 | listed |
| Unknown Trending Headline — an agent-callable trending headline service, payable over x402 (USDC on Base). Provided via Apify. |  syraa.fun | ai | - | listed |
| Unknown Company Employees — an agent-callable company employees service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.14 USD per call. | portalsprotocol.com | ai | $0.14 | listed |
| Unknown Gas Tracker — an agent-callable gas tracker service, payable over x402 (USDC on Base). Provided via chainray.online. |  chainray.online | ai | - | listed |
| Unknown Inboxes — an agent-callable inboxes service, payable over x402 (USDC on Base). Provided via Apify. |  agentmail.to | ai | - | listed |
| Unknown Gas Optimization — an agent-callable gas optimization service, payable over x402 (USDC on Base). Provided via chainray.online. | chainray.online | ai | - | listed |
| Unknown Token Pumpfun Trending — an agent-callable token pumpfun trending service, payable over x402 (USDC on Base). Provided via Apify. |  xona-agent.com | ai | - | listed |
| Unknown Sentiment — an agent-callable sentiment service, payable over x402 (USDC on Base). Provided via Apify. | syraa.fun | ai | - | listed |
| Unknown Twitter Community — an agent-callable twitter community service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.01 USD per call. | portalsprotocol.com | ai | $0.01 | listed |
| Unknown Gas History — an agent-callable gas history service, payable over x402 (USDC on Base). Provided via chainray.online. | chainray.online | ai | - | listed |
| Unknown Whale Alerts — an agent-callable whale alerts service, payable over x402 (USDC on Base). Provided via chainray.online. | chainray.online | ai | - | listed |
| Unknown Gas Predict — an agent-callable gas predict service, payable over x402 (USDC on Base). Provided via chainray.online. | chainray.online | ai | - | listed |
| Unknown Channel Videos — an agent-callable channel videos service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.09 USD per call. | portalsprotocol.com | ai | $0.09 | listed |
| Unknown Posts Comments — an agent-callable posts comments service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.06 USD per call. | portalsprotocol.com | ai | $0.06 | listed |
| Unknown Instagram Profiles — an agent-callable instagram profiles service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.05 USD per call. | portalsprotocol.com | ai | $0.05 | listed |
| Upcoming API Upcoming FDA drug-approval (PDUFA) decision dates for US-listed biotechs — a forward catalyst calendar extracted from primary SEC 8-K/6-K filings, every date grounded in a verbatim filing quote and cited to its EDGAR accession. The difference from other catalyst feeds: each date is scored against the actual FDA decision, so accuracy is a public, auditable track record (median 1-day error) — verify it free at GET /v1/accuracy before you pay. |  biotechcatalystsentinel.com | - | $0.02 | listed |
| Utilia Audio Normalization Normalize public HTTPS or base64 audio to a predictable integrated loudness and return a bounded base64 MP3 with measurements and content digests. |  utilia.ink | - | $0.01 | listed |
| Utilia Document Transform Extract deterministic Markdown and metadata from a public HTTPS PDF URL or a base64 PDF payload. Enforces public-network fetching, an 8 MiB limit, and a caller-selected page cap. | utilia.ink | - | $0.0025 | listed |
| Utilia Solana Priority Fee Feed Return timestamped Solana priority-fee quantiles for compute-unit bidding, optionally localized to up to 20 writable accounts. Designed for recurring transaction-bot polling at $0.002 per call. | utilia.ink | - | $0.002 | listed |
| Utilia Solana Token Safety Workflow-friendly Solana token safety check. Submit a mint address in JSON to inspect authorities, Token-2022 controls, supply, holder concentration, and risk flags. | utilia.ink | - | $0.006 | listed |
| Validate Validate — an agent-callable validate service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.002 USD per call. |  klymax402.com | - | $0.002 | listed |
| Vat API Validate any EU VAT number live against the official European Commission VIES service before you invoice cross-border, or derive and check the French VAT number from a SIREN. Returns valid/invalid or an honest 'unverifiable' when the member state is down - syntax check always included. No account, no key. |  invoket.com | - | $0.01 | listed |
| Vedetta Recent analyst desk posts as a stream (?since_id=&asset=&limit=): cached, instant, half a cent. Poll it cheaply; escalate to a live read when something moves. Descriptive research, not financial advice. |  dethboy.com | - | $0.005 | listed |
| Vehicle Info Vehicle Info — an agent-callable vehicle info service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.001 USD per call. |  railway.app | - | $0.001 | listed |
| VenturePulse Find the best accelerator or incubator for your startup worldwide — YC, Techstars, 500 Global, Antler, EF and 50+ regional programs, with equity terms, deadlines and acceptance rates. For founder and startup agents. |  theaslangroupllc.com | - | $0.10 | listed |
| Verify Verify — an agent-callable verify service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.002 USD per call. | klymax402.com | - | $0.002 | listed |
| VetPulse State/regional veteran benefits guide for veteran and VA-benefits agents. Returns the complete list of state (US), devolved-nation/council (UK), provincial (Canada), state/territory (Australia), or regional (NZ, Germany) veteran benefits on top of the national program. | theaslangroupllc.com | - | $0.10 | listed |
| View the roadmap Roadmap — an agent-callable roadmap service, payable over x402 (USDC on Base). Provided via x721.dev. Priced around 0.01 USD per call. |  x721.dev | ai | $0.01 | listed |
| Virtuals Protocol agent tokens and bonding curves (Base only). (with AI analysis) Virtuals Protocol agent tokens and bonding curves (Base only). (with AI analysis) |  emc2ai.io | ai | $0.55 | listed |
| Vishwa - Obtain BTC pledge address Vishwa - Obtain BTC pledge address |  vishwanetwork.xyz | ai | $0.001 | listed |
| Vpsagent API VpsAgent — rent disposable VPS compute via x402, no signup required. Two product lines: ephemeral sandboxes (1h / 6h / 24h, 1 vCPU / 1 GB, $0.50–$5) for code execution, CI runs, browser automation; persistent servers (small / medium / large, 30-day or 365-day, $12.99–$359.99) with 4–8 vCPU / 8–24 GB RAM / 100–300 GB SSD for hosting agents, services, dev environments. Deployable in 9 regions (EU default/free; US +$3/mo, other regions +$6/mo). Returns full SKU table with prices, spec floors, |  phoneagent.xyz | - | $0.01 | listed |
| Wallet age and activity profile: POST a Base address, returns wallet age (since first inbound), total transaction count, ETH balance, last activity date, days since last tx, and a recent monthly activ Wallet age and activity profile: POST a Base address, returns wallet age (since first inbound), total transaction count, ETH balance, last activity date, days since last tx, and a recent monthly activity heatmap. Verdict: fresh / established / dormant / inactive, with sybil/freshness flags. For AI agent due diligence to distinguish a brand-new throwaway wallet from an established active one before transacting. Not financial advice. |  x402node.dev | - | $0.05 | listed |
| WaterPulse Real-time groundwater levels for water and hydrology agents. Returns depth-to-water, trend analysis, and drought risk context from USGS monitoring wells for any US state. | theaslangroupllc.com | - | $0.08 | listed |
| WealthPulse Avalanche or snowball — which pays off my debt faster and cheaper? Debt payoff planner comparing both strategies with total interest cost and months to payoff, plus a consolidation check across your debts. For personal-finance and wealth agents. | theaslangroupllc.com | - | $0.10 | listed |
| Weather Premium multi-source intelligence: ask natural-language questions about weather, earthquakes, volcanoes, or natural events. Queries multiple weather models in parallel and returns the fastest result with cross-validation. |  x402.press | - | $0.05 | listed |
| Weather Weather — an agent-callable weather service, payable over x402 (USDC on Base). Provided via Apify. Priced around 0.001 USD per call. | klymax402.com | - | $0.001 | listed |
| Weather Zip Weather Zip — an agent-callable weather zip service, payable over x402 (USDC on Base). Provided via 2s.io. Priced around 0.0012 USD per call. |  2s.io | - | $0.0012 | listed |
| Web3 Trader | Powered by Questflow Web3 Trader | Powered by Questflow |  dctx.link | ai | $0.50 | listed |
| Web3 Trader | Powered by Questflow Web3 Trader | Powered by Questflow | dctx.link | ai | $0.50 | listed |
| Web3 Trader | Powered by Questflow Web3 Trader | Powered by Questflow | dctx.link | ai | $0.50 | listed |
| Web3 Trader | Powered by Questflow Web3 Trader | Powered by Questflow | dctx.link | ai | $0.50 | listed |
| Web3 Trader | Powered by Questflow Web3 Trader | Powered by Questflow | dctx.link | ai | $0.50 | listed |
| Web3 Trader | Powered by Questflow Web3 Trader | Powered by Questflow | dctx.link | ai | $0.50 | listed |
| Web3 Trader | Powered by Questflow Web3 Trader | Powered by Questflow | dctx.link | ai | $0.50 | listed |
| Web3 Trader | Powered by Questflow Web3 Trader | Powered by Questflow | dctx.link | ai | $0.50 | listed |
| Web3 Trader | Powered by Questflow Web3 Trader | Powered by Questflow | dctx.link | ai | $0.50 | listed |
| Web3 Trader | Powered by Questflow Web3 Trader | Powered by Questflow | dctx.link | ai | $0.50 | listed |
| Web3 Trader | Powered by Questflow Web3 Trader | Powered by Questflow | dctx.link | ai | $0.50 | listed |
| Web3 Trader | Powered by Questflow Web3 Trader | Powered by Questflow | dctx.link | ai | $0.50 | listed |
| Web3 Trader | Powered by Questflow Web3 Trader | Powered by Questflow | dctx.link | ai | $0.50 | listed |