HTTP/1.1 402 PAYMENT REQUIRED agent402.base.eth · BASE · SOLANA · POLYGON · ARBITRUM · MONAD · CELO · AVALANCHE · SEI · OPTIMISM · STELLAR · ALGORAND · ROBINHOOD · USDC · USDG
SKILL PACKS

Curated workflows

Multi-tool workflows for specific jobs - pay per call (USDC on Base + 10 more chains, or USDG on Robinhood Chain) or run free with proof-of-work. Each pack is one paste of context for your agent.

Earnings deep-dive

Everything you need before a company reports: the upcoming earnings date, the latest financials, recent SEC filings, the live quote, and fresh analyst news - in one pass.

5 tools

Options analytics

Price a European option on a live stock: pull the current quote, estimate volatility from recent history, run Black-Scholes for fair value + the full greeks, and check the news for catalysts.

4 tools

Fixed-income desk

Read the rate environment and price a bond in one workflow: the live Treasury curve, the recession-signal spread, inflation context, then price and yield a specific coupon bond at current rates.

5 tools

DeFi protocol scanner

Due-diligence a DeFi protocol in one workflow: live token price, market context, protocol TVL across chains, and recent news - the on-chain and off-chain picture together.

4 tools

Security audit

Enumerate a domain's external attack surface in one workflow: certs, DNS posture, email auth, HTTP security headers, and tech stack.

7 tools

Email deliverability

Diagnose why a domain's email lands in spam: SPF posture, DMARC policy, DKIM key strength, MX targets, and a composite 0–100 score.

6 tools

Crypto market brief

Quick crypto market snapshot: price for a specific coin, trending coins, and global market stats (total cap, BTC dominance, volume) - one call.

3 tools

Financial analysis

Quick company snapshot: live quote, 9 key financial metrics (revenue through cash flow), and upcoming earnings - one call, one payment.

3 tools

Financial research

Pull SEC filings, real-time quotes, historical prices, and macro context for a single ticker in one pass.

7 tools

Macro economics

Pull the canonical US macro dataset - yield curve, CPI, unemployment, fed funds, Sahm rule - without an API key.

7 tools

Macro dashboard refresh

The full macro + crypto dashboard in one call: 5 FRED series, 5 Treasury reads, yield-curve spread, crypto market/trending/global, and live gas - the 14-tool basket recurring buyers refresh every cycle, bundled below its a la carte price.

14 tools

DNS & network ops

End-to-end DNS health check: records, multi-resolver propagation, WHOIS, ASN, robots.txt, and reachability.

6 tools

Crypto research

Pull live price, market structure, OHLC history, trending status, global market context, and recent news for a single coin in one pass.

7 tools

Content extraction

Turn arbitrary URLs and PDFs into clean structured text - articles, page metadata, PDF pages, OCR'd images, browser-rendered SPAs.

6 tools

SEC filings deep-dive

Pull the full EDGAR picture of a US public company in one workflow: recent filings, key financial time series, insider trades, and full-text search across the corpus.

7 tools

Structured scrape

Pull structured data out of any web page deterministically - articles to clean text, tables to JSON rows, specific elements via CSS selector - without writing regex against raw HTML.

7 tools

Decode this blob

Hand the agent an opaque string - a JWT, a base64'd JSON payload, a gzip-encoded API response, a hex-encoded hash - and walk it through identifying what it is and unwrapping it layer by layer until it's human-readable.

7 tools

Trend analysis

Take any numeric time series - a stock's daily close, a FRED macro indicator, a treasury yield history - and run it through the full quantitative workup: descriptives, moving averages, trend line, outliers, optional correlation against a benchmark, and a deterministic forecast forward with a 95% prediction interval. Everything an analyst writes a notebook for, in one chain of cheap calls.

8 tools

Forecasting bake-off

Don't guess which forecasting method to trust. Backtest all four (naive/drift, SES, Holt, Holt-Winters) on a real series, rank by out-of-sample RMSE, then forecast forward with the winner and its 95% prediction interval. Method selection without the hand-waving.

7 tools

Document intelligence

Turn any PDF or image URL into structured data - metadata, extracted text, sliced page ranges, OCR for scanned docs, decoded barcodes / QR codes - without falling back to a vision LLM guess. Built for the messy 30% of documents where pdf-to-markdown alone returns nothing useful.

7 tools

Loan comparison

Compare two or more loan offers - different rates, terms, fees, prepayment structures - on the metrics that actually matter (monthly payment, total interest, year-1 equity build, NPV at your discount rate, effective rate). Apples-to-apples math without opening a spreadsheet.

5 tools

Investment decision

Should we do this project? Run a capital allocation decision (equipment, expansion, acquisition, build-vs-buy) through the textbook CFO workflow: NPV at your hurdle rate, IRR vs. cost of capital, opportunity cost against a passive benchmark, and levered cashflow analysis if the project is debt-financed. Deterministic answers, not a gut call.

5 tools

Retirement planning

Will my retirement plan actually work? Project the accumulation phase forward with compound interest, compute the target nest egg from your expected spending, then model the drawdown phase using the same PMT formula a mortgage uses - your retirement is mathematically a loan you're paying yourself. Deterministic numbers, no glossy advisor PowerPoint.

5 tools

Savings goal

How much do I need to save each month to hit $X in N years? Pin down the required contribution with a clever PV-discount trick: discount the target back to today, then call loan-payment with the discounted target as principal - the 'payment' the tool returns IS your required monthly savings. Same PMT formula a mortgage uses; different decision.

4 tools

Fraud signals

Is this domain trustworthy, or is it a phishing site / typosquat / scam? Pull the reputation signals an analyst checks before clicking anything: domain age, cert issuance history, hosting reputation, DNS topology, tech-stack fingerprint, and page-content red flags. Different from a security audit - this is about whether the domain is what it claims to be.

7 tools

API investigation

Point at an unknown API endpoint and figure out how to use it: auth scheme, content type, version, rate limits, OpenAPI/Swagger spec discovery, and JSON response structure. The deterministic recon workflow before writing a single line of integration code.

7 tools

Text hygiene

Turn a wall of dirty text - chat logs, scraped pages, user-generated content, log dumps - into something safe to store, search, and pipe into the next step. Measure first, redact PII before anything else touches the data, then dedupe, sort, extract entities, surface keywords, and grade the readability of what's left.

7 tools

CSV profile

Hand the pack a CSV and get back a column-by-column profile: descriptive stats, outliers, pairwise correlations, and a baseline linear regression. The deterministic 'what's in this dataset?' workup before deciding what to actually model.

6 tools

Location intel

Point at an address (or even a rough place name) and assemble the situational brief: precise coordinates, the canonical postal address, what's within walking distance, the live weather forecast, active NWS hazard alerts, and recent seismic activity. The deterministic 'what should I know about this place right now?' workup.

6 tools

Meeting scheduler

Schedule a meeting across timezones without the round-tripping. Convert a proposed UTC slot into every attendee's local time, verify it lands on a working day for each, project the end time, generate human-readable countdowns, expand recurring rules, and report exactly how far out the slot sits - in one deterministic pass.

7 tools

JWT forensics

Someone hands you a JWT and asks 'is this valid?' Decode without verification first to see the shape, render the time claims (iat/nbf/exp) in human time, compute exactly how long until expiry, then HMAC-verify against the secret. Optional follow-ups: decode any base64-looking custom claims, verify embedded SHA fingerprints.

6 tools

User onboarding

Take a signup form submission and run the full onboarding workup deterministically: validate the email, score the chosen password, mint a stable internal ID, derive a URL-safe handle from the display name, generate a recovery / API secret, hash the password for storage, and verify the 2FA setup code. One pass, every step a pure-CPU call.

7 tools

Data interchange

Bring data in from any structured format, normalize through JSON as the universal pivot, merge with overrides, audit the diff, flatten for downstream systems, and emit to whatever format the next stage actually consumes - CSV for spreadsheets, YAML for config systems, JSON for everything else. The deterministic universal-format-bridge workflow.

6 tools

RAG corpus prep

Take a raw document and turn it into a vector-DB-ready JSONL dataset, deterministically. Measures the corpus, token-counts it with the real OpenAI BPE, chunks at the right token boundary, attaches entities + keywords as metadata, emits NDJSON, then validates every record against a JSON Schema before you ingest it. Seven pure-CPU tools, free-tier eligible - the canonical 'prep my docs for embeddings' workflow done as deterministic tool calls instead of a hand-rolled Python script.

7 tools

Webhook debug

A webhook hit your endpoint and you need to confirm it's authentic, valid, and safe to log. Pretty-print the payload, decode any JWT auth header, verify the HMAC signature against the raw body, schema-validate the parsed JSON, translate timestamps to human time, redact sensitive fields before they hit your log pipeline, and pull out URLs/emails/IPs for fast indexing. Seven pure-CPU tools - the canonical webhook-receiver debugging round-trip.

7 tools

Webhook secure intake

The production ingest path for every incoming webhook: verify the provider signature (GitHub / Stripe / Shopify / Slack, constant-time, replay-window enforced), schema-validate the now-trusted body against the provider envelope, fingerprint the raw bytes for redelivery dedup, normalize the event timestamp to UTC + epoch, and redact PII before anything hits a log. Five pure-CPU tools - the accept-or-reject gate, run on every event.

5 tools

WCAG accessibility audit

Run a deterministic WCAG 2.x audit of an HTML page from a string and a fg/bg color pair. Checks language attribute (3.1.1), document title (2.4.2), heading order (1.3.1), link-text presence (2.4.4), color contrast (1.4.3), and reading grade level (3.1.5 AAA). Seven pure-CPU tools, no headless browser needed - the canonical accessibility-first-pass workflow done as a single round-trip of tool calls.

7 tools

Multi-stop trip planner

Plan a multi-stop journey deterministically: geocode each stop, sum the pairwise haversine distances, estimate arrival times by adding driving hours per leg, count business days from today to each arrival, and pull the weather forecast at every US stop. Six tools - three pure-CPU (math + time), three egress (geocoding + weather) - covering the deterministic skeleton of every road-trip / sales-tour / delivery-route planning problem.

6 tools

Server-side identity mint

The server-side identity-issuance round-trip: mint a random user-id (UUIDv4), derive a deterministic cross-system correlation-id (UUIDv5), turn the display name into a URL-safe handle, generate a one-time recovery password, hash it for storage, sign a session JWT with HMAC, and base64-encode the recovery bundle for transport. Seven pure-CPU tools - the canonical 'create-user' write path done as one deterministic pipeline.

7 tools

Macro backdrop snapshot

The 'is the economic backdrop you're modeling against still current?' pack. Pull the canonical macro signals - CPI year-over-year, unemployment, fed funds, the Treasury yield curve, a G10 FX dashboard, the Sahm Rule recession indicator, and the next scheduled economic releases - in one composed workflow. Seven egress tools, one composite snapshot the agent can cite before doing any forecast or investment math.

8 tools

SEC regulatory monitoring

The 'who just filed / who just bought / what just IPO'd / what does the full-text search say' monitoring loop. Five EDGAR tools composed: full-text search for a keyword, surface recent filings on the matched companies, pull insider Form 4 transactions, pull 13F institutional holdings changes, and check the IPO calendar. Different from sec-filings-deep-dive (which goes deep on one company's earnings) - this is the wide-and-recent radar.

5 tools

Answer-a-question with sources

The 'research a question, return an answer with citations' workflow. Brave answer for the AI-synthesized take with citations, Brave web for the canonical SERP, Brave news for time-sensitive context, then a deterministic web-fetch + extract pass on the top citations to verify the answer hasn't hallucinated. Five tools, one cited paragraph, every claim traced back to a fetched URL.

5 tools

Uploaded-media normalize

The 'user uploaded a thing, normalize it before storing' workflow. Probe the file (image or audio/video) with media-info, decode any embedded barcodes/QRs, resize and thumbnail the image, convert it to a web-friendly format, and normalize audio loudness to broadcast standard. Six tools, one canonical normalize-on-upload pipeline that turns arbitrary user uploads into predictable storage artifacts.

6 tools

API contract drift check

The 'did this API contract change in a way that breaks our integration?' workflow. Diff two OpenAPI snapshots structurally, lint the new one for agent-readiness regressions, extract the endpoint surface for inventory comparison, validate a known-good payload against the new contract, and summarize security-relevant changes. Six tools, one go/no-go answer on whether the upstream API broke us.

6 tools

Link preview card

The 'turn a URL into a card-shaped preview' workflow. Pull OpenGraph/Twitter card metadata, fetch the article body as a description fallback, normalize the og:image into a standard 1200×630 social card variant and a 400×400 square thumbnail, and extract URL/mention entities from the body for related-link surfacing. Five tools, one structured card payload ready for chat embeds, social shares, or RSS-to-card pipelines.

5 tools

Convert anything to markdown

Convert anything at a URL - HTML, PDF, or an image - to clean markdown. The 'I have a URL but it might be any content-type, give me markdown either way' workflow: HEAD-detect the content-type, branch to the right deterministic extractor (article extract for HTML, pdf-to-markdown for PDFs, OCR for images), and report token/word stats on the output so the caller can budget the result against an LLM context window.

6 tools

Site status snapshot

The 'is this site healthy, addressable, and crawlable - right now?' workflow. DNS resolution → HTTP reachability → security headers → TLS certificate expiry → robots policy. Five tools, one structured status payload an operator (or an uptime bot, or a pre-flight check before an extract/crawl) can act on.

5 tools

Weather briefing

Full weather briefing for a location: current conditions, 7-day forecast, and air quality index in one pass.

3 tools

Cross-asset price monitor

Side-by-side snapshot of a stock and a crypto asset: live quotes, 1-year history, and a date-stamped comparison.

5 tools

Content quality report

Readability scores, keyword density, and a URL-ready slug from a block of text - a one-pass content-quality check for writers and SEO tools.

3 tools

Agent wallet readiness check

One call answers 'can this wallet pay right now?' - USDC balances on Base AND Solana, live Base gas, and a ready-to-share Coinbase Onramp funding link if it's running dry.

3 tools

Onchain analyst (SQL over Base)

Ask Base anything in one paid call: your SQL runs against Coinbase's indexed, DECODED chain data (events with parsed parameters, transactions, blocks, user-ops) with the live schema alongside - no indexer, no RPC archaeology.

3 tools

Technical SEO audit

Can search engines and AI crawlers actually index this page? One pass over reachability, TLS, robots policy, sitemap health, meta/OpenGraph tags, and the on-page link graph.

6 tools

Cheapest rail right now

Where should an agent transact this minute? Live gas on Ethereum + every major L2 side by side, Base gas tiers, a fee estimate for your transaction type, and ETH spot to price it all in dollars.

4 tools

Company dossier

Comprehensive company research report in one call: live quote, financials, SEC filings, insider trades, and recent news - all in parallel.

5 tools

Domain intel

Full domain security and SEO intelligence in one call: WHOIS, DNS, TLS cert, HTTP headers, tech stack, robots policy, and certificate transparency.

6 tools

Crypto dossier

Everything about a cryptocurrency in one call: live price, 90-day history, trending status, global market context, news search, and top article extraction.

6 tools

Earnings watch

Is this company reporting soon and what's the consensus? Earnings calendar, live quote, and recent search results in one call.

3 tools

Insider alert

Insider buying/selling activity for a stock: Form 4 trades, live quote, and recent SEC filings in one call.

3 tools

IPO watch

What companies are going public? Recent S-1/IPO filings from EDGAR plus a web search for IPO news.

3 tools

Yield dashboard

Current yield curve snapshot: full Treasury curve, key spreads, and average rates in one call.

3 tools

Inflation check

Is the economy in recession territory? CPI, fed funds, unemployment, and Sahm rule in one call.

4 tools

FX monitor

Major currency snapshot: EUR/USD, GBP/USD, JPY/USD rates plus the full FX dashboard in one call.

3 tools

DeFi dashboard

DeFi market overview: total TVL, ETH price, Base gas, and global crypto stats in one call.

4 tools

NFT portfolio

NFT + wallet snapshot: NFT holdings, native balance, and ETH price for a given address in one call.

3 tools

Wallet audit

Full wallet activity review: balance, recent transactions, and token metadata for a given address.

3 tools

Gas optimizer

Find the cheapest gas right now: Base gas, Ethereum gas, Base fee estimate, and ETH price for USD conversion.

3 tools

SSL audit

TLS/SSL security posture check: live certificate inspection, HTTP security headers, and CAA DNS records.

3 tools

Email security

Full email auth posture: SPF, DMARC, DKIM, and composite deliverability score in one call.

4 tools

Brand protection

Is this domain legitimate? WHOIS age, DNS resolution, scam/phishing search results, and HTTP headers for a quick trust assessment.

4 tools

Competitor scan

What's a competitor using? Tech stack, HTTP headers, WHOIS, and page metadata in one call.

4 tools

Page audit

Full page SEO + security audit: content extraction, metadata, HTTP headers, robots policy, and sitemap health in one call.

5 tools

Regex tester

Test a regular expression against text and get match results plus text statistics - the quick validation loop for pattern development.

3 tools

Number crunch

Statistical analysis suite: descriptive statistics, correlation analysis, and outlier detection on a single dataset.

3 tools

Financial calculators

Compound interest, amortization schedule, and loan payment in one call - the three financial calculations agents need most.

3 tools

Markdown to HTML round-trip

Markdown to HTML and back - a round-trip conversion that proves fidelity and gives you both formats from one input.

3 tools

XML to JSON

Convert XML to JSON and pretty-print it - the 'legacy API response to modern format' workflow in one call.

3 tools

Validator suite

Validate common identifiers in one call: ISBN (book), IBAN (bank account), and credit card number (Luhn check).

3 tools

Article digest

Quick research brief on any topic - web search results plus an AI-generated answer in one pass.

3 tools

PDF processing pipeline

Full PDF processing pipeline - metadata, markdown conversion, and first-page extraction in one call.

3 tools

URL inspector

Quick URL health and metadata check - parse the URL structure, verify reachability, and pull page metadata in one pass.

3 tools

Content grade

Grade a page's content quality - extract the readable content then analyze keyword density.

3 tools

OpenAPI spec audit

Lint an OpenAPI spec and validate a sample payload against it - catch schema errors in one pass.

3 tools

JSON pipeline

Validate, pretty-print, and convert JSON to CSV in one pass - the complete JSON processing workflow.

3 tools

Data format converter

CSV to JSON to YAML pipeline - convert tabular data through the common interchange formats in one chain.

3 tools

API health check

Is this API endpoint healthy? Liveness check, response headers, and TLS certificate status in one pass.

3 tools

World Bank country data

GDP and population for a country - two key World Bank indicators in one call.

3 tools

Fed economic snapshot

Key Federal Reserve economic indicators - fed funds rate, unemployment, and CPI - in one call.

3 tools

Contact verification

Verify an email address is deliverable - syntax validation plus MX record check on the domain.

3 tools

Domain age and legitimacy

How old and legit is this domain? WHOIS registration, DNS resolution, and TLS certificate in one pass.

3 tools

JWT toolkit

Decode and verify a JWT in one pass - see the payload and check the signature.

3 tools

Timezone planner

Time zone conversion, business day calculation, and cron schedule preview - scheduling in one pass.

3 tools

Text analysis

Full text analysis - word/sentence stats, keyword extraction, and token count in one pass.

3 tools

Content cleaner

Clean and deduplicate text - redact PII, remove duplicate lines, and sort in one pass.

3 tools

Contract audit

Triage a smart contract before an agent interacts with it: verified Solidity source, heuristic vulnerability scan, known-address check, function-selector resolution, and a read-only dry-run of the exact call you plan to make.

5 tools

Transaction forensics

Explain what an EVM transaction actually did: confirmation status, the raw transaction from the chain, decoded calldata with typed parameters, the resolved function signature, and labeled counterparties.

5 tools

Market open brief

Full pre-trade snapshot for one ticker before the bell: the live quote, the pre-market quote, the options surface, dividend posture, and today's market-wide earnings calendar - one payment.

5 tools

Entity enrichment

Company name → verified identity + web footprint dossier: Wikidata facts, the official LEI legal-entity record, the SEC EDGAR filer, domain registration, tech stack, and brand favicon - in one pass.

6 tools

Feed watch

Monitor an RSS/Atom feed in one call: parse the feed, read the top story in full, extract the keywords driving the cycle, and diff the item list against your last run to isolate what's new.

4 tools

Schema guard

Contract-test a JSON payload in one call: validate it against your schema, infer the schema the payload actually implies, diff the two to expose drift, and return a normalized pretty-print.

4 tools

Subtitle pipeline

Audio URL → finished subtitles in one call: transcribe the audio, emit the transcript as SRT/WebVTT/JSON cues, and report the text statistics - length, reading time, word count.

3 tools

Locale brief

"Can I reach this counterparty this week?" - country facts, this year's public holidays, working days remaining this week, and what time it is there right now, in one call.

4 tools

Install once, use any pack

claude mcp add agent402 -s user -- npx -y agent402-mcp@latest

Then ask Claude to run the pack's example prompt - it discovers the tools automatically via the hosted MCP connector.