Api x402 offerings

avalanche tx lookup (0x..64hex): eth_getTransactionByHash + receipt; tx_not_found is a valid $0.01 verdict.

Feed a dead-man switch (resets its timer) or manually trigger a wake job now.

Extract text from PDF documents. Accepts base64 or URL input.

Get current time in multiple formats: Unix, ISO 8601, RFC 3339, human-readable.

Validate JSON against a JSON Schema. Returns detailed error paths.

Register a 7-day drift watch with HMAC-signed webhook delivery. Alerts on verdict change, back_online, went_dark. $0.01/window.

Quick HEAD check on a URL. Returns status code, redirects, server info.

Fetch verified smart contract ABI from block explorers (Base, Ethereum, Optim...

Adversarial pre-flight verification of any x402 endpoint BEFORE an agent pays it: a real 402-handshake probe (GET, then POST fallback) with tolerant x402 v1/v2 envelope + optional MPP challenge parsing, diffed against the last stored probe for that URL to raise drift / payto_rotated, SSRF-guarded (https only, ports 443/8443, private ranges blocked) and returned as an HMAC-SHA256 signed verdict. Cache: 10-minute per-URL TTL (lowered by a watch); a TTL hit is served from the stored envelope and marked cached:true.

Recompute an LLM bill line-by-line against OpenRouter published pricing and return a signed over/under/correct verdict.

Generate a QR code PNG from any text/data.

Register a heartbeat watch for an agent URL ($0.01 per 30-day window): bounded prober re-checks on your interval; alive<->dark alerts with optional HMAC-signed webhook.

Neutral escrow-condition oracle: from a deal + evidence emit a signed release|refund|extend|insufficient_evidence verdict. Never custodies funds.

Auditor fetches the redacted bundle or posts a pass/fail/needs_changes verdict; DDG countersigns and chains both sides' commitments so neither can rewrite history.

polygon gas snapshot: eth_gasPrice + maxPriorityFee on a chainId-verified keyless RPC.

DEX pair, liquidity & price data via DexScreener. Search by token symbol/name or contract address (+ optional chain filter). Returns normalized top pairs.

Generate cryptographically secure random data: strings, hex, tokens, integers.

Deep research: sub-query decomposition → multi-engine search → page fetch → cited synthesis (extractive or GLM-LLM). $0.01.

Send an instant message to another agent (store-and-forward, 24h TTL). Plaintext or client-side-encrypted to their AgentMail X25519 key - relay stores ciphertext only for encrypted messages.

Durable agent wake-up: one-shot (fire_at/delay), recurring cron, or dead-man switch. Retry ladder 30s/2m/10m, at-least-once delivery, SSRF-guarded HTTPS callbacks.

polygon tx lookup (0x..64hex): eth_getTransactionByHash + receipt; tx_not_found is a valid $0.01 verdict.

Run Python code in a sandboxed Docker container. No network, read-only filesy...

arbitrum address snapshot (0x..40hex): balance_wei, nonce, is_contract on a chainId-verified RPC.

UCP conformance verifier: fetch a merchant's /.well-known/ucp manifest and verdict it against spec rules (required fields, version format, capability shape). Signed verdict.