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Argentic vs signafAIde

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Argentic compared with signafAIde
DetailArgentic logo ArgenticsignafAIde logo signafAIde
What it doesAn engine for long-running agents that rebuilds its prompt under a cap and runs on your budget Tamper-evident audit trail for AI agents with verifiable records
StageMVP Not given
FoundedNot given Not given
Based inNot given GB
Pricing modelFreemium Freemium
PricingPrototype: free during beta, then from December 16, 2026 it costs $1 per 1,000 agent calls after 1,000 monthly included calls. Production: $20 a month with 20,000 agent calls included, then $1 per 1,000 calls after that. Top-ups: $1 per 1,000 calls, from $10 to $500 at a time, never expiring. Free: £0, no card required, 1 user, 25,000 live records a month. Solo: £19/month or £190/year, 1 user, 100,000 live records a month (then £5 per 100,000). Team: £49/month or £490/year, unlimited users with roles, 250,000 live records a month (then £5 per 100,000, or £3 above 10 million). Enterprise:
Key features
  • Prompt rebuilt from journal under token cap at each step to keep it bounded as history grows
  • Spending limits checked before each model call at token prices you declare
  • Resume after crash without repeating finished actions
  • Tool calls returned as actions for your code to carry out
  • Proof of what ran: check prompts, re-run engine, download hash-chained journal
  • Integrations with Vercel AI SDK, OpenAI Agents SDK, LangGraph, Mastra, Pydantic AI
  • MCP server for Claude Code, Claude Projects and Codex
  • Works with any model via bring-your-own-key
  • TypeScript and Python clients for HTTP API access
  • Agent signs each record with its own Ed25519 key
  • Service co-signs records and chains them to prevent edits or gaps
  • Public timestamp bounds each record with hourly verification
  • Only salted hashes sent to service; inputs and outputs stay on your machine
  • Open verifier code allows independent verification
  • Python and TypeScript SDKs for wrapping agent tools
  • Verification reports in HTML or PDF format with compliance mapping
  • Compliance packs for EU AI Act, ISO/IEC 42001 and SOC 2
  • 99.5% uptime guarantee on hosted witness in Google Cloud London
What makes it different
  • Bounded prompt under a fixed cap while history grows, so costs per call stop climbing on long sessions
  • Every run recorded with cryptographic proof: rebuilable prompts, hash-chained journal, re-runnable engine
  • Resumes from crash without repeating finished actions using stable idempotency keys
  • Budget enforcement before each model call, not reactive overage billing
  • No model key storage or logging; your provider bills you directly
  • Records are verifiable offline and survive service shutdown
  • Independent co-signature and public time bounds provide proof beyond your control
  • Content remains private on your machine in hash-only mode
  • Compliance-ready evidence for regulators and auditors
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)Not checked yet no change since last checkNot checked yet no change since last check
Trust Flow (Majestic)00
Citation Flow (Majestic)90
Referring domains (Majestic)40

5 details filled in for both companies.

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