Free for 100 envelopes, every month

E-signatures,
finally done right.

Bona Fide is the API-first e-signature platform. Generate contracts from templates, embed signing anywhere, and ship documents that verify green in Adobe — without seat fees, envelope anxiety, or a sales call.

  • Live in minutes, not procurement cycles
  • Pay only for completed envelopes
  • SSO without the SSO tax
NDA · MutualE-7Q3K-92XD
client.name Acme Robotics, Inc.effective_date Oct 13, 2026
Signed with Bona FideJane Doe · jane@acme.dev · email OTP
Sealed & verifiedPAdES · trusted timestamp · LTV
POST /v1/webhooksenvelope.completed 200
Built on open standards
ESIGN ActUETAeIDASPAdESRFC 3161OpenAPI 3.1Standard WebhooksMCPSAML · OIDCSCIM 2.0
The platform

Generate. Embed. Prove.

Everything between “here’s the contract” and “it’s signed” — as one clean API and a designer people actually enjoy.

Generate from templates

Draw fields on a PDF or write the contract in our editor. Variables become a typed JSON Schema, so one API call turns your data into a ready-to-sign document — validated, versioned, idempotent.

  • Conditional sections & repeating tables
  • Preview & dry-run before you send
  • Never send the same NDA twice

Embed signing anywhere

Drop <bf-signing> into your product, send a hosted link, run it headless from your server, or capture a one-click acceptance. One engine, four modes, honest evidence for each.

  • Web component, React & Vue
  • Always-on links for repeat contracts
  • White-label on Platform

Prove it, forever

Every completed document is sealed with a trusted timestamp and validates green in Adobe. A hash-chained audit trail records who did what, when, and how they were verified.

  • Tamper-evident by design
  • Public verification page & API
  • Certificate of completion included
For developers

The API you’d have designed yourself.

Typed variables, predictable errors, and the details other platforms make you build: idempotency keys, dry runs, test mode, webhook replay.

  • One call from template + data to a ready-to-sign envelope
  • 422s that tell you exactly what to fix — with a JSON Pointer for every error
  • Short-lived embed sessions minted when your page renders
  • Free, unlimited test mode with bf_test_ keys
  • MCP server — agents can prepare and send, never sign
# Generate an NDA from a template and send it
curl https://bonafide-api.republic.global/v1/envelopes \
  -H "Authorization: Bearer bf_live_…" \
  -H "Idempotency-Key: onboarding-8841" \
  -d '{
    "template": "tpl_mutual_nda",
    "version": "latest",
    "variables": {
      "client": { "name": "Acme Robotics, Inc." },
      "effective_date": "2026-10-13"
    },
    "recipients": [
      { "role": "client", "name": "Jane Doe", "email": "jane@acme.dev" }
    ],
    "external_id": "user_8841",
    "dedupe_on": "external_id"
  }'
Template designer

Fields that place themselves.

Upload a PDF and auto-detect finds the signature lines, dates and boxes. Snap, align and duplicate like a design tool. Preview with real data before you publish.

Trust

Signed in good faith.
Proven in any court.

Bona fide means “in good faith.” We take the name literally: every step a signer takes is recorded, every document is sealed, and anyone can check it.

Consent & intentESIGN-style consumer disclosure, explicit consent to sign electronically, versioned and recorded.
Identity you chooseEmail one-time codes by default; passkeys, SMS and ID verification when the stakes are higher.
Tamper-evident recordA hash-chained event log per envelope, anchored daily so history can’t be rewritten — not even by us.
Sealed for the long termPAdES document timestamps with embedded validation data. Verify any copy, anytime.
Pricing

Generous by default. Fair at scale.

Per workspace, never per seat. You pay for completed envelopes only.

Free

$0forever

100 completed envelopes / mo

Start free
  • Full API, webhooks & MCP
  • Template designer
  • Embedded signing (with badge)
  • Green-verified documents
  • Google & Microsoft sign-in

Business

$149/ workspace / mo

2,000 included · then $0.08

Start Business
  • SCIM & enforced SSO
  • Audit log export
  • EU data residency
  • Uptime SLA
  • Priority support

Platform

$199/ mo

2,000 included · volume tiers

Build on Bona Fide
  • White-label embedding
  • Sub-accounts for your customers
  • Embeddable template designer
  • Down to $0.03 / envelope at scale
  • Dedicated onboarding

Enterprise with HIPAA BAA, 21 CFR Part 11 controls and custom terms — talk to us. Add-ons: SMS codes $0.10, ID verification $2.50, EU qualified signatures $4.50.

Questions

Good questions, straight answers.

Are Bona Fide signatures legally binding?

Bona Fide workflows are built to the requirements of the US ESIGN Act and UETA and to simple electronic signatures under eIDAS: consent to do business electronically, clear intent to sign, signer attribution, and a tamper-evident record kept for you. Qualified signatures for the EU and country-specific schemes are available as add-ons through accredited providers.

What does “verifies green” mean?

Every completed document is sealed with a PAdES document timestamp from a publicly trusted time-stamping authority and long-term validation data. Open it in Adobe Acrobat and it validates — and any change after sealing is detected. You can also verify any copy at bonafidesign.com/verify.

What counts as an envelope?

A set of documents sent for signature to one or more people. You are billed only when it is completed — never for drafts, declines, or voided envelopes.

Can I move from DocuSign?

Yes. Upload your PDFs, let auto-detect place the fields, and publish. Your existing integrations map cleanly to our envelope, recipient and template model.

Do I need a credit card to start?

No. The free plan includes the full API and 100 completed envelopes every month. Add a card only when you want more.

You’ve found it. Sign here.

Start free in two minutes. Bring your first contract — we’ll place the fields.