toolgrep / Other / Akashi Notari
Alternatives to Akashi Notari
Akashi Notari: Simple proof of existence. 8 products similar to Akashi Notari, compared on pricing, free tier, API, MCP server, SDK and open source. 8 of 8 have a free tier, 8 of 8 have an API, 4 of 8 offer an MCP server.
- bsv.cx
Timestamp and verify evidence on Bitcoin (BSV) via OP_RETURN, with free SPV proof verification against self-synced block headers.
- SignatureAPI
Electronic Signature API
- Stablecoin Scanner
Onchain dollar telemetry for humans and AI agents
- Webhooker
EU-hosted inbound webhook gateway with signature verification, durable storage, retries and replay.
- Assertible
Continuous testing and monitoring for APIs and websites
- CertPost
SSL certificate monitoring for teams and agencies
- Verifalia
Real-time email verification API with SDKs for .NET, Go, Java, JavaScript, PHP, and Ruby
- Webhook Toolkit
Test, inspect and debug webhooks with a live capture URL, CLI forwarding, AI explanations and an MCP server.
Side by side
| Product | Pricing | Free tier | API | MCP server | SDK | Open source |
|---|---|---|---|---|---|---|
| Akashi Notari | Usage-based | no | no | no | no | — |
| bsv.cx | Usage-based | yes | yes | yes | no | — |
| SignatureAPI | Usage-based · from $0.25 per envelope; standard plan $25/month with first 100 envelopes included | yes | yes | yes | — | no |
| Stablecoin Scanner | Free | yes | yes | yes | no | — |
| Webhooker | Freemium | yes | yes | no | no | no |
| Assertible | Freemium | yes | yes | no | no | no |
| CertPost | Freemium · from $0 | yes | yes | no | no | no |
| Verifalia | Freemium · from $49/month | yes | yes | no | yes | no |
| Webhook Toolkit | Freemium · from Free tier; paid plans from €5 one-time (7-day Pass), Pro €9/month, Business €29/month | yes | yes | yes | yes | — |
Facts come from each product's own website, or from its verified owner when they have edited the listing. Each product page shows when it was last verified and how it was extracted. Similarity comes from the products' descriptions.
API
curl https://toolgrep.com/api/products/akashi-notari/alternatives