All projects on Base matching “webhook”

Cron for AI agents: signed HTTP deliveries on a cron expression. BEST-RATE pack: 2000 delivery credits for $1 ($0.0005/delivery) - intro price at the volume rate. Same service, smallest entry $0.02 at https://402cron.com/buy/trial. Ladder: 20/$0.02, 2000/$1, 50000/$25. All packs: https://402cron.com/api/pricing. Credits never expire. Needs your own https:// endpoint that echoes our challenge (no f

Mail Security Tools API: Prepaid email setup watch: up to 25 domains for 30 days, webhook on change. Pay once, then each domain's SPF, DMARC, DKIM (common selectors), MX and score are re-checked about once a day for 30 days. When something changes or breaks you get an HMAC-signed JSON POST at your https webhook_url (event watch.changed, kind changed|broke, before/after). A watch.created POST is se

Give an autonomous agent what it structurally lacks: a real email address that receives verification codes, its own webhook URL, durable memory that survives between runs, and the ability to block on an event - an email, a webhook, a signal - without polling and without burning tokens while it waits, or to park its state, exit, and resume hours later exactly where it stopped. US$1.00 of prepaid cr

POST any JSON payload to any webhook URL with custom headers and method. Let your agent trigger downstream systems in one call. Pay per call with USDC (x402) or credits - archtools.dev

Real-time pre-trade signal: a probability snapshot of Hyperliquid's HIP-4 prediction markets - crypto price binaries, sports outcomes, tournament winners, Fed rate decisions, and more. Fields are parsed verbatim from Hyperliquid, so new market types appear automatically. Optional template/underlying filters narrow the result; limit caps rows (max 500). Subscribe to webhook alerts via GET /v1/predi

AgentWire service card for webhook inbox relay and web fetch infrastructure.

Store a secret (API key, webhook payload, signed URL) encrypted with WebCrypto AES-256-GCM and share a claim URL that yields the secret exactly once. A Durable Object serializes reads so single-use delivery is race-free, and every burn returns an Ed25519-signed attestation. Creating a vault requires x402 payment; the recipient's claim read (GET /v/:vault_id) is free.

Check whether a domain's TLS/SSL certificate is valid, trusted, and not expiring before connecting to it. Performs a live handshake and returns a 0–100 score and tier (VALID/WEAK/EXPIRING/EXPIRED/UNTRUSTED/INVALID) with chain trust, days-to-expiry, signature algorithm, TLS version, and cipher quality. Use before submitting credentials, posting to a webhook, or following a payment link, to catch ex

cron402: create a cron job that calls your webhook on a schedule. $0.008 includes 1 run credit; each subsequent run costs 1 credit (top up at /v1/crons/topup/{pack}).

Trigger an event to all webhooks

Lightweight utility API for agents and operators: DNS lookups, RDAP/WHOIS domain data, HTTP probes, page metadata extraction, cryptographic hashing, JSON validation, scheduled webhooks, and exotic endpoints (Base transaction decode, ENS resolve, USGS earthquakes, cron next-run, TLS certificate report). No shell access; outbound URL tools enforce SSRF protections.

Compute a keyed HMAC of some data with a secret key — the standard way to sign and verify webhooks (Stripe, GitHub, etc.) and API requests. Data and key may each be utf8/hex/base64/base64url; the tag is returned as hex/base64/base64url.

Agent-Cron-Service: schedules a recurring trigger (crontab expression, timezone-aware) delivered to a verified webhook or email, paid per trigger in USDC. POST the job definition; the 402 quotes the exact price.

Something you cannot do while your agent is dead: keep watching. One paid call buys 7 days of it — on-chain on Base (wallet activity, whale transfers, price crossings, new pools), a dead-man switch that fires when YOUR agent goes silent, a cron/schedule webhook, or a url-change web monitor. Every event carries a signed Ed25519 receipt proving a third party observed it then — which your own logs ca

Watch up to 25 domains for 30 days for new ransomware leak-site claims. $2.00 USDC on Base, paid once. Checked every 15 minutes; on a domain or exact-name match you get a signed webhook. Validate entries free first at POST /v1/watchlists/validate. Alerts are unverified claims from criminal leak sites, commercially reusable sources only.

Generate AI images or video from a text prompt with Midjourney-style --flags (--ar 16:9, --v, --flagship, ...). Async: returns a generation record; poll GET /api/gens/{uuid}/ or set callback_url for a webhook. Pay-to-play: without credits you get a 402 priced for this prompt; settle the exact USDC on Base via x402 and retry. No account needed: first settlement creates the account; subsequent reque

Ed25519 receipt: registered-app HMAC/freshness, not fulfilment. B2B onboarding; EUR20 net+VAT, USDC/Base. HTTP/MCP/proxy, 202=task. https://api.integrityphase.com/.well-known/integrityphase-commerce.json

Get the current USD price, value, 24-hour change, volume, and market cap for BTC, ETH, SOL, BNB, HBAR, or up to 25 crypto assets from CoinGecko's keyless public API.