All projects matching “de”

SendCheck: pre-send verification of any EVM address on one chain (EIP-55 checksum, wallet-vs-contract, outgoing activity, balances, verdict). POST {address, chain}

Give this API a list of up to 10 web addresses and it will visit each one to tell you whether it is working, broken, or redirecting visitors somewhere else. You get back the exact status number (like 200 for OK, 404 for not found, 500 for server error), whether the address redirects, and where it redirects to. Great for finding broken links, verifying website migrations, and running quick SEO audi

Search explainably qualified EU solar and battery tenders from an explicitly dated TED snapshot

Checks whether a website or web address is currently reachable and reports how fast it responded.

SEC Form D private-placement check by issuer name or CIK: has the issuer filed Form D, and for each filing the exemptions claimed (Rule 506(b)/506(c), Rule 504, Section 3(c) exclusions), total offering amount, amount sold, and date of first sale. Full history from public-domain SEC Form D data sets (2008-present).

Give this API any text or binary data and it returns its fingerprint under whichever hash algorithms you choose - SHA-256, SHA-512, MD5, BLAKE2, CRC32 and more. It also signs data with a secret key (HMAC) and safely verifies whether an incoming signature matches, using a timing-safe comparison. Language models cannot hash: they emit a string of the right length and character set that is simply wro

Compare an agent's advertised contract with its live x402 challenge and return deterministic proof.

Verify a Canadian registered charity against the Canada Revenue Agency List of Charities. Look up by business number (BN, e.g. '119219814RR0001' or the 9-digit root) or by charity name (English or French). Returns legal name, BN, registered status verdict, designation (Charitable Organization / Public Foundation / Private Foundation), charity category, and mailing city/province. Data: CRA List of

SendCheck: pre-send verification of any EVM address on one chain (EIP-55 checksum, wallet-vs-contract, outgoing activity, balances, verdict). POST {address, chain}

Decode a MessagePack or CBOR byte stream (supplied as a base64/base64url/hex string) back into a JSON value. A malformed envelope, malformed bytes, or a value that is not JSON-representable is rejected before payment.

Follow subscription: a token for the live event stream for 24 hours

Exit-liquidity and price-trust assessment for a Base ERC-20 token at a requested USD position size. On-chain sell quotes cover Aerodrome, Slipstream, and Uniswap V2/V3/V4. Returns tradeable, caution, illiquid, or unverified with executable proceeds, price impact, confidence, concerns, and unmeasured checks. Inputs: token address and size_usd.

A lemonade in the flavour of your choice (classic, pink, mint, strawberry, ginger, vegan, zero-sugar), served as an illustrated collectible card: a 400x560 SVG image of a cold glass of lemonade with a straw. One GET request with the flavour in the path; returns the card as image/svg+xml.

Is a vendor down right now? Current outage status for one SaaS vendor. $0.01 USDC on Base per call. Returns status, active-incident summary, last-checked time, source URL and freshness fields, read live from PulseWatch. Unknown vendors return 404, not charged. Don't use this for past incidents; use /v1/incidents.

QR Code Generator qr: Encode one text as a QR Code (ISO/IEC 18004, versions 1-40, ECC L/M/Q/H) and return it as SVG, PNG or a JSON matrix.

USE WHEN: An autonomous DeFi agent needs to POST { chain, address } to verify smart contract honeypot traps, owner privileges, and pool liquidity.

AI Chat (LLM) chat: OpenAI-compatible chat completion on Llama 3.3 70B or Qwen 2.5 Coder 32B (up to 32000 characters in, 1024 tokens out, optional JSON mode).

Pay once for virtual admission to Agentic Commerce Demo Day

Validate an HTTP or HTTPS URL's syntax without contacting the destination.

Demo endpoint for x402 resource discovery

Check whether an ENS identity name for an AI agent, API or MCP server is available on x402 Identity Hub (*.402bot.eth, *.402api.eth, *.402mcp.eth). Returns availability, the mint fee and where to register.

Email validation — Syntax check + live MX/deliverability + disposable-domain flag.

Verify an NYC Department of Consumer and Worker Protection (DCWP) business license by license number or business name. Returns license status, industry category, license type, expiration date, and business address. NYC-only coverage, active licenses only. Public-domain NYC Open Data.

Screen a product, firm, or brand against FDA drug, device, and food recall (enforcement) history. Returns matching recall events with classification, status, and reason. Public-domain openFDA data.

Hello from Taiwan — a signed timestamp from my first x402 stall

Token contract facts for agents on Base. Use when your agent is about to approve, receive or send an ERC-20: send address and get code size, EIP-7702 delegation, name, symbol, decimals, supply, proxy and upgrade admin, owner or renounced, and which privileged functions the bytecode has (mint, pause, blocklist, fees, limits, upgrade). Facts only: no grades, not investment advice. Built and run by W

Verify a UK food business's official Food Hygiene Rating (FHRS 0-5) by name, with optional postcode. Returns the rating in text, the inspection/rating date, address, business type, and local authority for each match, from UK Food Standards Agency open data (OGL v3.0). England, Wales and Northern Ireland.

Render a bar/line/area chart to SVG (v2 discovery probe)

Verify whether a supplied public source page currently supports one atomic factual claim. Returns supported, contradicted, or insufficient-evidence plus source snippets, or explicit blocked/unreachable/unsupported states. Not a general fact checker or web search.

Aggregated crypto market snapshot: prices, Fear & Greed, DeFi TVL, dominance, top stable yields.