List the wallets you've granted access to your namespace, with their mode and expiry.

Atomically increment (or decrement) a numeric key and return the new value — a coordination primitive for counters, locks, and rate budgets shared across agents. Creates the key at 0 if absent.

Tamper-evident history of every change to a namespace — an append-only, hash-chained audit log the server attests to (provenance an agent can't forge for itself). ?owner=0x… reads a granted namespace.

Recall remembered text by similarity to a query (ranked by cosine similarity), not by exact key. Returns the top-k matches with scores. The retrieval half of the wallet-scoped semantic memory.

Store a piece of text for later similarity recall — a per-wallet semantic index an agent cannot host in-session. Returns an id. Pair with /api/memory/recall to retrieve by meaning, not exact key.

Revoke a previously granted wallet's access to your namespace.

Fetch page metadata for a URL: title, description, OpenGraph, Twitter cards, canonical URL, favicon.

Look up the MEV-Boost payment for a specific slot or block number via the Flashbots relay. Returns the builder, proposer, value paid in ETH, gas usage, and tx count. Returns found=false if the block was built locally or via a different MEV-Boost r...

Builder market share aggregated over the last N MEV-Boost blocks via the Flashbots relay. Returns per-builder block count, share percent, total ETH paid to proposers, and average per block. Use to track block-builder concentration or detect a new ...

Last N MEV-Boost-built blocks via the Flashbots relay. For each block: slot, block number/hash, builder pubkey, proposer pubkey, gas used/limit, ETH paid to the proposer, and tx count. Use to monitor block-builder market share, proposer revenue, o...

Look up a MIME type by file extension (?ext=png) or extensions by MIME type (?type=image/png). Covers ~50 common types.

Modular arithmetic operations: mod (a mod m), modpow (a^b mod m via fast exponentiation), and modinverse (a^-1 mod m via extended Euclidean algorithm). Uses BigInt for arbitrary precision. Useful for cryptography and number theory.

Check text for harmful content using OpenAI moderation (omni-moderation-latest). Returns flagged status, category breakdown (harassment, hate, self-harm, sexual, violence, etc.), and confidence scores. No API key needed; pay per call via x402. Tex...

Encode text to Morse code or decode it back. mode: encode (default) or decode. Words separated by ' / '.

Compute simple (SMA) and exponential (EMA) moving averages over a numeric series. Returns one value per input position — the first (window-1) SMA values are null since there isn't enough history. EMA uses the standard alpha = 2/(window+1) smoothin...

Run 2-5 web searches in one call with a 20% volume discount vs. individual searches. Each query returns ranked results (title, URL, snippet). Ideal for multi-faceted research or comparing sources on different aspects of a topic.

Your own purchase history, keyed to the wallet that pays for the call — no wallet parameter, no signup: the x402 payment IS the identity, so nobody can read another wallet's profile. Returns totals, per-tool counts, per-chain breakdown, and recent...

Convert text to the NATO phonetic alphabet (Alpha, Bravo, Charlie...) or decode phonetic words back to text. Letters and digits supported. Word boundaries marked with " | ". Deterministic, pure CPU.

Fetch NFT collection (ERC-721 / ERC-1155) metadata by contract address on Ethereum, Base, Polygon, Arbitrum, or Optimism: name, symbol, token type, total supply, deployer, OpenSea slug + image, floor (ETH), Twitter/Discord, and verification (safel...

Get the current floor price for an NFT collection across OpenSea + LooksRare (Ethereum). Returns per-marketplace floor (ETH), collection URL, retrieval timestamp, and the cheapest cross-marketplace floor with the marketplace tag. Use to price a co...

Return the NFTs owned by a wallet address on a given network. Each row carries the collection name, contract address, token ID, image URL (where available), and ERC-721 vs ERC-1155 standard. Up to 100 per call — paginate with `pageKey` from the pr...

Resolve the metadata for a single NFT: title, description, image URLs (original + cached CDN), attributes/traits, and the standard (ERC-721 vs ERC-1155). Useful when you have a contract+tokenId and need the display data without re-fetching the who...

Recent sales for an NFT collection (or specific token) on any of 5 chains, ordered descending by block. Returns buyer, seller, marketplace (OpenSea/LooksRare/X2Y2/Blur), price (units + wei), protocol/royalty fees, tx hash, block, and quantity for ...

Compute the net present value of a stream of cashflows at a given discount rate. Index 0 is treated as t=0 (today, not discounted); indices 1..n are discounted by (1+rate)^t. Matches Excel's NPV but with the conventional t=0 treatment most finance...

Format a number: thousands separators, fixed decimals, optional currency, or compact (1.2K / 3.4M).

Run read-only SQL against Coinbase's indexed, DECODED blockchain data — base.events (decoded logs with parameters), base.transactions, base.blocks, base.decoded_user_operations, base.transaction_attributions (builder codes), plus solana.instructio...

The table + column schema for the onchain-sql tool — every queryable table (base.events, base.transactions, base.blocks, base.decoded_user_operations, base.transaction_attributions, solana.instructions, …) with its columns and types. Fetch once, t...

Generate a single-use Coinbase Onramp URL that lets a human fund any wallet with a card or Apple Pay — the fastest way to put real USDC into an agent's wallet. Returns the ready-to-open URL plus a fee-inclusive quote. Networks: base, ethereum, pol...

Compare two OpenAPI 3.x or Swagger 2.x documents and return a structured diff: added / removed / changed endpoints, with a conservative "is any change breaking?" flag. Breaking = an endpoint or required-2xx status was removed, a required parameter...

Flatten an OpenAPI 3.x or Swagger 2.x spec into a structured list of callable endpoints — one row per operation with method, path, operationId, summary, tags, parameters (name / in / required / type), JSON-body flag, and documented response codes....

Score an OpenAPI 3.x or Swagger 2.x spec on agent-readiness — i.e. does an LLM-driven caller have what it needs to call the API correctly without guessing. Returns a 0..100 score, severity counts, and a structured list of violations with stable ru...

Synthesize a JSON response body for one operation + status code in an OpenAPI 3.x or Swagger 2.x spec. Locate the operation by operationId or method+path. Pick the response by explicit `status`, else the first 2xx, else the first documented respon...

Shrink an OpenAPI 3.x or Swagger 2.x document for LLM context by stripping verbose meta-fields (examples, descriptions, summaries, tags, externalDocs, deprecated). Categories are explicit; default is `["examples", "descriptions"]`. User-defined pr...

For one operation, return the minimum set of inputs an agent must provide to make a successful call. Locate the op by `operationId` (preferred) or by `method`+`path`. Output is a single flat array tagged by `in`: `path` (always required), `query` ...

Inline every local `$ref` in an OpenAPI 3.x or Swagger 2.x document so downstream tools see a self-contained spec. Resolves `#/components/...` (OpenAPI) and `#/definitions/...` (Swagger) JSON-pointer refs anywhere in the document, including inside...

Search operations in an OpenAPI 3.x or Swagger 2.x spec against a free-text query. Tokenizes the query (lowercase, alphanumeric runs), scores each operation by which fields the tokens match — operationId +3, path +3, tags +2, summary +2, descripti...

Resolve authentication requirements across an OpenAPI 3.x or Swagger 2.x document. Returns the catalog of security schemes (`components.securitySchemes` in OpenAPI 3, `securityDefinitions` in Swagger 2) verbatim, the document-level default, and th...

Build a runnable curl command for one operation in an OpenAPI 3.x or Swagger 2.x spec. Locate the operation by operationId (preferred) or by method + path, substitute path parameters using the spec's example values, include required query and head...

Validate a JSON payload against the request or response schema for one operation in an OpenAPI 3.x or Swagger 2.x spec. Locate the operation by operationId or method+path; choose `part: "request"` or `part: "response"` (status defaults to the firs...

Option chain for a US-listed ticker: all listed expiration dates, the strike ladder, and per-contract bid/ask/last/volume/open-interest/implied-volatility for calls and puts at one expiry (nearest by default, or pass `expiration` as YYYY-MM-DD). B...

Flag outliers in a numeric series using either the IQR rule (Tukey fences at 1.5·IQR — robust, default) or z-score (|z| > threshold — assumes normality). Returns the outlier values + their indices + the thresholds used so you can decide whether to...

Generate cryptographically random passwords. ?length=8..128 (default 24), ?symbols=true|false (default true), ?count=1..20.

Score a password's strength: character-set size, entropy bits, a 0–4 rating, and an estimated offline crack time. The password is never stored or logged.

Derive a cryptographic key from a password using PBKDF2 (RFC 8018). Returns the hex-encoded derived key along with all parameters used, so you can store or verify them later. Supports sha1, sha256, sha384, sha512 digests.

Fetch a PDF from a URL and extract its text content. Returns page count, document info, and the full text (up to 20MB PDFs).

Pull a subset of pages into a new PDF (split). Body: {"url":"https://…/file.pdf","pages":"1-3,5"}. Returns the new PDF as base64.

Inspect a PDF without downloading the whole thing into your model: page count, title, author, subject, creator, producer, creation/modification dates, encryption flag, and byte size. Body: {"url":"https://…/file.pdf"}.

Combine several PDFs into one, in order. Body: {"urls":["https://…/a.pdf","https://…/b.pdf"]}. Returns the merged PDF as base64 plus page count and size.

Rotate pages by 90/180/270°. Body: {"url":"https://…/file.pdf","degrees":90,"pages":"1-3"?}. Omit "pages" to rotate all. Returns the new PDF as base64.

Convert a PDF to clean markdown: headings, paragraphs, and bullets reconstructed from the text layer — ready to drop into a model's context. Body: {"url":"https://…/file.pdf"}.