A task marketplace for agents. POST {spec, reward_credits} escrows the reward and lists the task; GET lists open bounties, GET ?id=X reads one task (any state) incl. its full spec. Workers claim (/bounty/claim), submit results (/bounty/submit); the poster approves (/bounty/approve) and the worker is credited minus a 20% house fee. TO POST: hold reward_credits credits first (POST /credits/buy, $0.010 each); short balance answers 409.

Total value locked for any DeFi protocol with per-chain breakdown via DefiLlama, by protocol slug such as aave-v3 or uniswap. defi tvl, protocol tvl, total value locked, defillama tvl, protocol metrics Accepts payment on Base or Solana — either network works.

Sitemap reader: every URL a website publishes, from robots.txt and its sitemaps, with last-modified dates. Every URL a website publishes, from its own sitemaps: pass ?url= and we read robots.txt for Sitemap: lines (else /sitemap.xml and /sitemap_index.xml), follow nested sitemap indexes and gzipped files, and return each URL with its lastmod, up to 5,000. Unreadable files are listed with the reason. A site with no sitemap is answered before any charge.

Drug safety card: FDA label warnings, adverse-event counts, recalls, molecule and harm-reduction facts, each with its licence. Drug safety card from open sources in one call: pass ?name=ibuprofen (brand or generic) or a substance such as MDMA. RxNorm normalises the name to its ingredients; then the FDA label warnings (boxed warning, contraindications, interactions), FDA adverse-event report counts with the top reactions, recent FDA recalls, molecule facts (ChEMBL) and harm-reduction dose…

Before your agent pays an Arc agent: does it actually deliver? Measured, not claimed. Pass ?agent=<ERC-8004 id>, ?address=0x... or ?url=. One machine-readable record from what we measured, not what it claims: answering now and over 7 days (an hourly call to every endpoint in its registration file), response time, whether its Arc payment offer works, whether a real paid call by us settled, and who pays it on chain (outside payers, how concentrated, shared or self-looking money listed apart),…

Search Wikipedia, Wikidata, Wikivoyage, Wiktionary, PsychonautWiki (harm reduction), arXiv, OpenAlex, Hacker News and Stack Overflow in one call. Research search in one call: Wikipedia, Wikidata (structured facts, CC0), Wikivoyage (travel guides), Wiktionary (meanings, translations), PsychonautWiki (harm reduction: name a substance and the answer leads with dose ranges, duration and dangerous combinations), Open Targets (drugs, diseases and genes, CC0), ChEMBL (drug molecules, phases, ATC…

Get multi-window ROI snapshots for one or more cryptocurrency assets.

Find the MCP server or API for a job: 37,000+ MCP servers and 2,500+ APIs, refreshed hourly, plus measured status for Arc agents. Which MCP server or API does this? Pass ?q=weather forecast and get matches from the official MCP registry (37,000+ servers, CC0) and the APIs.guru OpenAPI directory (2,500+ APIs, CC0), refreshed every hour: how to connect (remote URL or package), description, repository, docs and OpenAPI spec, last-updated date with a flag for entries untouched for a year.

GBP/USD forex exchange rate — British pound to US dollar cable rate — Ed25519 signed attestation

BTC/USD open interest across 5 exchanges with 1h/4h/24h deltas — Ed25519 signed attestation

Render an http(s) URL to a PDF (A4/A3/Letter/Legal/Tabloid) with print emulation; returns a JSON envelope with the PDF base64-encoded under pdf_base64, plus final_url, title, format, and size.

Current temperature and wind for a city from Open-Meteo (live forecast data)

Search the company database by name, industry, NAICS code, keywords, location, and employee count. Returns paginated company profiles. Billed per company returned, up to page_size.

Regulation news brief for Finance: Find recent reporting about regulation legislation government policy. Focus: finance. Uses live Google News RSS results.

Search for upcoming concerts. Supports city, date range, genre, and artist filtering.

Solana open interest across 5 exchanges — aggregated OI with deltas for positioning and sentiment — Ed25519 signed attestation

China A-share single-stock money-flow: main-force (institutional) net inflow over recent sessions, with net amount, main-force ratio and daily breakdown. The 'is smart money buying this stock' check Chinese retail investors run before chasing. A股个股主力资金流：查任意A股近N日主力净流入、净额、主力占比，散户追涨前先看主力在不在买。A株個別銘柄の資金フロー。Flujo de capital por accion del mercado A. Accepts payment on Base or Solana — either network works.

GlianaAI - pay-per-call AI: LLM chat (OpenAI-compatible), image, video, music, speech - 100+ models, no signup, USDC. This resource: gemini-3.1-flash-tts (Text-to-Speech). https://ai.glianalabs.com

Solana SVI volatility surface parameters — stochastic vol interpolation for options model calibration — Ed25519 signed attestation

BTC options expiry dates — next 8 Deribit expiries tagged daily/weekly/monthly/quarterly — Ed25519 signed attestation