Certify your texts, ideas and files with a Bitcoin blockchain timestamp
Crypto market data API for AI agents
Stage
Not given
Startup
Founded
Not given
2026
Based in
ES
ES
Pricing model
Freemium
Freemium
Pricing
Free plan: €0, includes unlimited Bitcoin certification, shareable proof links, REST API, and 3 web page captures per day. Pro plan: €4.90/month, adds RFC 3161 timestamping, eIDAS qualified certificates, official PDF certificates, 20 web page captures per day, and identity verification.
Free plan available. Pro: $29/month or $290/year. Max: $99/month or $990/year. Ultra: $399/month or $3,990/year. Pay-per-call: $0.005 per call in USDC on Base.
Key features
Bitcoin anchoring via OpenTimestamps protocol
SHA-256 fingerprint computed locally in browser
REST API for integration and automation
RFC 3161 qualified timestamps for European legal recognition
eIDAS-qualified PDF certificates from Sectigo
Web page capture and archiving
Optional identity verification via Stripe Identity
Webhook notifications for proof confirmation
Independent verification via opentimestamps.org
AES-256-GCM encryption for Pro stored content
150+ measurement columns per pair
Live order-book and trade data from 9 major exchanges
REST API, MCP connector and CLI access
Pay-per-call via x402 protocol for agents
Dashboard for visualizing market data
Historical data windows from 2 weeks to 1 year
What makes it different
No trusted third party required—proofs remain verifiable forever without Proxae
Original content never leaves your device—only cryptographic fingerprint is transmitted
Mathematically immutable—proof dates cannot be modified without invalidating Bitcoin blockchain
Same raw market measurements across all major exchanges, lined up on one clock
Pay-per-call option with no account, API key or subscription required
Full universe of 14,000+ pairs with nothing filtered out
Measurements only, not trade signals or recommendations
Agents can connect via Model Context Protocol to Claude and Cursor
Proxae
BlackForge