Development x402 offerings

Run deterministic or seeded simulations of paid multi-agent plans without calling submitted providers.

Classifies one-shot MCP paid-tool metadata changes for buyer-agent compatibility risk.

Creates safe fixture scenario recommendations for agent-commerce payment and checkout tests.

Diagnose malformed or failed agent requests and return safe fix steps plus corrected request templates.

Use this service before importing or publishing JSON to check it against a restricted draft-07 schema. Send dataJson and schemaJson as JSON-encoded strings. Max 256 KiB UTF-8 each, depth 32; bounded …

Validate a composition body without saving it (dry-run)

Map object keys to JSON type names. Call when you audit agent payload shapes before schema checks. Returns types map for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party l…

Look up HTTP status-code meanings for $0.001 USDC or retrieve the common-code reference. Call when you need this bounded result without an API key or subscription. Returns machine-readable JSON via x…

List top-level keys from JSON-LD or JSON objects the caller already holds — call when listing keys from JSON-LD the caller already holds. Use on text/URLs the agent already holds—adjacent to high-vol…

Chunk a JSON array. Use to batch tool calls, page results, or stay under payload limits. Returns array chunks with the requested size (bounded input). $0.001 USDC per successful call via x402 on Base…

Turn an OpenAPI document into a compact operation index for planning and tool selection. Use it before an autonomous workflow acts on untrusted input, changes an API, retries a request, or evaluates …

Check a JSON payload against a bounded structural contract and return path-level errors. Use it before an autonomous workflow acts on untrusted input, changes an API, retries a request, or evaluates …

Safe length of a list/JSON array. Call when you measure agent arrays before batching. Returns length integer for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSO…

Turn an OpenAPI document into title, version, path counts, tags, and auth hints for $0.001 USDC. One single-fetch structured result, no API key. Call when you need this bounded result without an API …

Sigmoid 1/(1+e^{−x}) back to probability space. Call when mapping model scores into probabilities without ML frameworks. Returns probability from score as deterministic JSON for $0.001 USDC via x402 …

Agent Result Error Shape Check: checks an agent error object for code, message, and retryability using only bounded caller-supplied values. Call when you need a bounded agent result error shape check…

Compare expected and actual top-level response fields and value types. Use it as a bounded preflight or analysis step inside an enterprise agent workflow before data, policy, integration, security, o…

Classify an HTTP status code into family with retry hint — first-party local utility for agent preflight and proven micro-utils expansion. Returns deterministic machine-readable JSON for $0.001 USDC …

JSON Pointer Get: resolves a bounded RFC 6901-style JSON pointer using only bounded caller-supplied values. Call when you need a bounded json pointer get result before an agent hands structured data …

Seeded Train Test Split: Seeded Train Test Split splits items into reproducible train and test sets from bounded caller-supplied values without an external provider. Call Seeded Train Test Split when…

Compare two semver triples (-1,0,1). Call when you decide upgrade direction for agent packages. Returns cmp and ok for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party loc…

Generate a Python-style range list. Call when you need index sequences for batching without local loops. Returns values list and count (bounded) for $0.001 USDC via x402 on Base. No network, no keys,…

Extract title and common meta tags from caller-held HTML — first-party local utility for agent preflight and proven micro-utils expansion. Returns deterministic machine-readable JSON for $0.002 USDC …

Line-level text diff for $0.002 USDC for $0.002 USDC. Call when you need this bounded result without an API key or subscription. Returns machine-readable JSON via x402 on Base or Solana. Limitation: …