the402 x402 endpoint directory

HSA (Health Savings Account) growth calculator. Projects year-by-year account balance from a starting value, annual co

Keeping up with inflation calculator. Computes the pre-tax raise needed under two scenarios — keeping the same dollar

Emergency fund calculator. Multiplies monthly essential expenses by a chosen runway length (in months) to compute a ta

Savings rate calculator. Divides the gap between monthly take-home income and spending by income to produce your perso

Portfolio rebalancing calculator. Given current holdings and target allocation percentages, computes the dollar gap pe

House hacking calculator. Nets rental income from other units/rooms against your mortgage payment and expenses, then a

Rental property investment calculator. Full multi-year deal analysis for a rental property deal: mortgage, per-categor

Cash-on-cash return calculator for real estate investing. Runs a full multi-year deal analysis (per-category rent/expe

Cap rate calculator for real estate investing. Runs a full multi-year deal analysis (per-category rent/expense growth,

Compound interest calculator. Projects the ending value of an investment given a starting principal, monthly contribut

15-year vs 30-year mortgage comparison calculator. Computes monthly payment and total interest for both loan terms on

Loan payment calculator. Computes the fixed monthly payment for a standard amortizing loan and returns the full month-

Purchase impact on FIRE timeline calculator. Runs the FIRE net-worth simulation twice — with and without a one-time pu

Windfall impact on FIRE timeline calculator. Runs the FIRE net-worth simulation twice — with and without a one-time lu

Barista FIRE calculator. Simulates net worth growth through a full-time-saving phase and then a reduced-target phase f

Fat FIRE calculator. Same year-by-year compound-growth simulation as the standard FIRE calculator, framed for a higher

Coast FIRE calculator. Computes the lump sum needed today, invested with zero further contributions, to grow into your

FIRE (Financial Independence, Retire Early) calculator. Projects year-by-year net worth growth to determine how many y

Live weather API. Returns real-time weather conditions, temperature, feels-like temperature, humidity, wind speed, pre

Live cryptocurrency price API. Returns the current market price (in USD) of any cryptocurrency by ticker symbol (BTC,

Live currency exchange rate API. Returns the current exchange rate between any two ISO 4217 currency codes (e.g. USD t

Checksummed-identifier-format generator API. Generates a structurally valid isbn, upc, vin, or imei, each computed wit

Checksummed-financial-identifier generator API. Generates a structurally valid iban, bic, creditCardNumber, bitcoinAdd

Network-format generator API. Generates a valid ipv4/ipv6 address (optionally within a CIDR block or named network ran

True-random-geo-coordinate generator API. Generates a bounded random latitude, longitude, or a coordinate near a given

True-random-date generator API. Generates a bounded random date via one of: anytime, past, future, between, betweens,

True-random-string generator API. Generates a bounded random string via one of: alpha, alphanumeric, binary, octal, he

True-random-number generator API. Generates a bounded random number via one of: int, float, binary, octal, hex, bigInt

Slug generator API. Converts any text into a clean, URL-safe slug (lowercase, hyphen-separated, unicode-aware), handli

UUID generator API. Generates a random RFC 4122 version 4 UUID using a cryptographically secure source — not the pseud

Secure password generator API. Generates a cryptographically random password — true randomness an LLM cannot produce o

URL decoder API. Decodes percent-encoded URL text back to plain text.

URL encoder API. Percent-encodes text for safe use in a URL query string or path segment, handling reserved-character

MD5 hash generator API. Computes the MD5 hex digest of any text. Deterministic and instant — an LLM cannot reliably co

SHA-256 hash generator API. Computes the SHA-256 hex digest of any text. Deterministic and instant — an LLM cannot rel

Base64 decoder API. Decodes a base64 string back to UTF-8 text instantly and correctly, avoiding the padding and chars

Base64 encoder API. Encodes UTF-8 text to base64 instantly and correctly — skip burning agent tokens hand-computing ba

URL validation API. Checks whether a string is a syntactically valid URL, catching malformed schemes, hosts, and encod

Email validation API. Checks whether a string is a syntactically valid email address using the same production-grade v

Virtuals Solana DBC State & Supply Receipt. Virtuals Solana launches only. Returns finalized mint controls, ACTIVE_DBC

Use when an agent already knows the product it wants and needs real current Shopify listings for a structured query. R

Use when an agent already knows the product it wants and needs real current Shopify listings for a structured query. R

Use when an agent needs the current official VIES validation status of an EU VAT number before B2B onboarding, invoici

Use when an agent needs the current official VIES validation status of an EU VAT number before B2B onboarding, invoici

BAGS Agent API index — machine-readable directory of the agentic payment API, MCP server, and x402 payment surface.

Audit short landing-page copy for clarity, outcome, call-to-action, and readable length.

Get the firm quote for a swap using Allowance Holder to set allowances

RAVN cross-chain swap execution, incl. native Bitcoin as source or destination

Give it a longitude and latitude inside the United States and it answers with the Census FIPS codes for that point: th

Agent Guild paid read (best_agent): trust read: which agent to hire for a capability Use when an autonomous agent need