Newsletter sponsorship platform connecting brands with publishers
Stage
MVP
Not given
Founded
Not given
Not given
Based in
DE
Not given
Pricing model
Free trial
Freemium
Pricing
Free during public beta until January 1, 2027 for up to 25,000 reached people per month. After launch, planned pricing starts at €179 per month for up to 25,000 reached people with larger plans available for higher volumes.
Free to join for both brands and newsletters. Brands pay the sponsorship price only after a newsletter accepts. LetterBid keeps 25% of each sponsorship as fee (includes payment processing); newsletters receive 75%.
Key features
Agent workspace for planning and building with AI
Journeys and campaigns buildable by agents
Visual email builder for branded emails
Sandbox testing before sending
Audiences and customer data management
Journey approval before activation
Agent access through MCP and API
Consent and frequency cap enforcement
Results analysis with holdout groups
Integration with multiple email providers
Newsletter discovery with verified audience data
Three sponsorship placement types: dedicated email, sponsored ad, banner ad
Direct, multi-newsletter, and recurring campaign types
Custom offer negotiation with up to 3 counter offers
Payment held in escrow until delivery approval
Verified newsletter badges with audience verification
Delivery reports and brand approval process
Public storefront for newsletters with shareable booking link
Stripe integration for payouts on the 15th of each month
Dispute resolution with LetterBid team intervention
What makes it different
Agents propose, humans decide with final approval authority before launch
Emails sent through user's own provider, preserving domain and sending reputation
Consent and compliance enforced before any email launches
Made and hosted in Germany with privacy built in from the start
Pay only for people you email each month, not total contacts stored
Transparent, fixed pricing with no hidden fees or surprise charges
Payment held in escrow and released only after delivery proof and brand approval
Verified audience data for newsletters to reduce guesswork
No upfront payment required; brands pay only after newsletter acceptance
Dispute resolution system with fair split option if sides cannot agree
Audryo
LetterBid