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Find Legal Entity Identifiers by company name in the global GLEIF register, optionally narrowed to one country. Returns the LEI, legal name, registration and entity status, jurisdiction, legal address and the local registry the entity is registered at — the identifier bridge between national company registers worldwide. Use when: What is the LEI for this company?

Validate a Legal Entity Identifier against ISO 17442: 20 characters, allowed character set and mod-97 check digits. Structural only — no GLEIF registry lookup, so it does not confirm the LEI is issued or active.

Register a webhook so long-running jobs (render/compose/media) notify you instead of blocking on wait_job. Body: `url` (https, must pass SSRF checks) + `events` (see the WebhookEvent enum). DELIVERY: each event is a POST with body `{ event, timestamp, projectId?, data }` and Standard-Webhooks headers `webhook-id`, `webhook-timestamp`, `webhook-signature: v1,<base64>` (+ `x-cueframe-event`). The `secret` (`whsec_<base64>`) is returned ONCE here — verify the raw body with `new…

Unlock the full bounty description, requirements, and reward details for a single bounty. $0.10 per unlock, agent-native via x402.

Query agent game state (Solana) for BUi3pwqo...AhKF1Z

DuneAPI: /v1/farcaster/trends/users - Farcaster Users

thirdweb API: getContractMetadata - Get Contract Metadata

thirdweb API: getWalletNFTs - Get Wallet NFTs

Unlock the full bounty description, requirements, and reward details for a single bounty. $0.10 per unlock, agent-native via x402.

https://playground-web.thirdweb.com: /api/paywall - Access to paid content

thirdweb API: getTokenOwners - Get Owners

DuneAPI: /v1/trends/evm/contracts/{chain} - Trending Contracts

x402Sample: x402 - x402Sample

Live valuations for private, pre-IPO companies — Anthropic, OpenAI, SpaceX, Anduril, Neuralink, Kalshi, Polymarket — in one call, via PreStocks Solana tokens backed 1:1 by SPV exposure. Per company: mark price and valuation, on-chain token price and implied valuation, the token's premium/discount, supply, and contract. The catalog's only pre-IPO feed. From x402stock

Split a PDF into page ranges — priced per page

Math fact generator for integers: computes a bundle of properties for any number you supply, primality, factorization, perfect-square status, Fibonacci membership, and alternate representations in binary, hex, and Roman numerals. Deterministic and instant, with no external lookup involved. Good for trivia games, validation logic, or satisfying idle curiosity about a specific integer.

Number trivia API: the mathematical personality of any integer — prime status, prime factorization, Fibonacci membership, perfect-square check, binary/hex/Roman forms, and digit sum. Instant, deterministic, endlessly curious.

Takes a time in one timezone and returns the equivalent moment in another, handling daylight-saving transitions automatically rather than assuming a fixed offset, with output including local time, UTC, and epoch seconds. For global scheduling agents where 'just add the hours' silently breaks twice a year.

Text hashing API: SHA-256, SHA-512, SHA-1, or MD5 digest of any text, returned as hex — deterministic, instant, computed locally. For deduplication keys, cache keys, content fingerprints, and integrity checks in agent pipelines.

Integer trivia lookup: give any whole number and get back whether it's prime, its full prime factorization, whether it appears in the Fibonacci sequence, its binary and hexadecimal forms, Roman numeral equivalent, and digit sum, all computed exactly and instantly. A fun grab-bag for quiz bots, math-education tools, and number-curious agents.

Unit conversion API: convert between 100+ units across length, mass, volume, temperature, area, speed, pressure, energy, power, and digital storage. Exact factors, instant, local. Deterministic and auditable — cheaper than burning reasoning tokens, zero arithmetic-hallucination risk, and the result can be cited. Unknown units return a helpful 400 listing valid targets.

Metric-imperial conversion API: miles↔km, lb↔kg, °F↔°C, gallons↔liters and 100+ more units, one call, exact factors. Deterministic and auditable — cheaper than burning reasoning tokens, zero arithmetic-hallucination risk, and the result can be cited.

Generates a deterministic checksum, SHA-256, SHA-512, SHA-1, or MD5, for any block of text, returned as a hex digest with no storage or logging of the input. For pipelines that need to detect whether two pieces of text are byte-for-byte identical without re-reading and comparing them token by token.

Contrast and dark-mode checker for any hex or rgb() input: returns whether a color reads as light or dark and which text color, black or white, stays legible on top of it, alongside full hex/RGB/HSL conversions. Useful for accessible UI generation, theme switchers, and design-system tooling that can't afford a manual eyeball check.