Overview
Firma.dev and Humalike are both developer-focused API products, but they solve completely different problems. Firma.dev provides an ultra-low-cost e-signature API for embedding document signing into SaaS platforms. Humalike offers behavioral APIs to make AI agents more humanlike in social interactions. This comparison examines their features, pricing, and ideal use cases.
Feature Comparison
| Feature | Firma.dev | Humalike |
|---|---|---|
| Core Product | E-signature API for embedding signing workflows into SaaS platforms | Behavioral APIs for making AI agents feel human in conversations |
| Target Audience | Developers, SaaS teams, startups needing document signing | AI developers building agents for gaming, therapy, education, companions |
| Integration Approach | REST API, embeddable iFrame, pre-built UI components, webhooks | Behavioral APIs (Norms, Persona, Theory of Mind, etc.), Hermes plugin |
| Pricing Model | Pay-as-you-go: €0.029 per envelope, no minimums, no contracts | Free to start with $20 credits, no card required; pricing details TBD |
| White-Labeling | Fully white-label with custom branding and UX | Not applicable (agents are inherently branded by developer) |
| Compliance & Security | SOC 2, ISO 27001, eIDAS, GDPR, ESIGN/UETA compliant | SOC 2 Type II and ISO 27001 in progress, encrypted data |
| Developer Experience | Swagger/OpenAPI docs, sample apps, sandbox with unlimited free testing | API-first, model-agnostic, one-shot Hermes integration |
| Use Cases | Contract signing, HR onboarding, sales agreements, any document workflow | AI gaming characters, AI coworkers, therapy agents, companions, ed-tech |
Pricing
Firma.dev: At €0.029 per envelope (about 3¢), it's roughly 99% cheaper than DocuSign. No monthly fees, no minimums, no contracts. You buy credits as needed. A free sandbox with unlimited usage lets you test everything before paying.
Humalike: Every new account gets $20 in free credits with no credit card required. This is enough to wire the APIs into your agent and ship something real. Pricing beyond the free tier has not been publicly announced yet.
Pros and Cons
Firma.dev Pros
- Extremely low cost (99% cheaper than DocuSign)
- Developer-first with simple REST API and quick integration
- Fully white-label and resell-ready
- Comprehensive compliance (SOC 2, ISO 27001, eIDAS, GDPR)
- Free sandbox with unlimited testing
Firma.dev Cons
- Limited to e-signature use case only
- Pricing per envelope may add up for high-volume senders
- Relatively new compared to established competitors
Humalike Pros
- Unique behavioral layer for humanlike AI agents
- Model-agnostic and stack-agnostic APIs
- Covers social skills most agents lack (theory of mind, norms, memory)
- Free credits to start building immediately
- Targets high-growth AI application areas
Humalike Cons
- Still in early stages (behavioral APIs marked 'Coming soon')
- Pricing beyond free credits not yet clear
- Niche use case – not for general document or workflow automation
- Compliance certifications still in progress
Verdict
Firma.dev is the clear choice for developers needing a cheap, embeddable e-signature API with full white-labeling and compliance. Humalike is for AI developers building agents that need to feel socially aware and humanlike. They serve entirely different needs; choose based on whether you need document signing or behavioral AI.
Firma.dev
Humalike