Summary: Peach Bitcoin is better cataloged as Bitcoin marketplace infrastructure than as a simple retail app. In this pass, the strongest first-party evidence came from the official website content repository, the official API docs repository, and the broader Peach GitHub organization. Taken together, those materials show a non-custodial, no-KYC mobile marketplace that exposes public market data, signed-message authentication, searchable buy/sell offers, escrow-oriented contract workflows, encrypted payment-data exchange, direct transaction broadcast, and a large payment-method registry spanning local rails, bank transfers, e-money apps, Lightning, and Liquid.
What it does:
Operates a peer-to-peer Bitcoin marketplace positioned as non-custodial and no-KYC, available on iOS, Android, APK, and a newer web surface
Exposes a public API for market prices, trading-pair data, fee estimates, system status, and supported payment-method metadata without credentials
Uses signed public-key authentication for private account access, with token issuance tied to a challenge message and signature from the user’s Bitcoin-associated key
Provides searchable buy and sell offers, user-specific offer management, and contract lifecycle endpoints around escrowed trades
Handles contract data that includes escrow addresses, PSBT-style release flows, encrypted payment data, dispute state, and counterparty rating fields
Maintains a broader first-party engineering surface on GitHub including the mobile app, web app, API docs, API wrapper, and a Peach Improvement Proposals repository
Key claims:
The public website content describes Peach as a place to “Buy and sell Bitcoin peer-to-peer without KYC” and calls it a “non-custodial mobile marketplace for private, anonymous Bitcoin transactions”
The API docs introduction says Peach splits its API into public and private endpoints, with public market data accessible without credentials and private data unlocked via an auth token obtained by presenting a public key plus signed message
The public system/info docs show Peach publishing payment-method metadata, escrow fee information, and app-version constraints through the API itself
The payment-method type definitions list 56 payment methods across local bank rails, payment apps, gift-card style methods, Lightning (lnurl) and Liquid, suggesting Peach is packaging substantial regional trading-rail discovery rather than just a narrow BTC order book
The offer APIs show publicly searchable buy and sell offers with premium sorting, payment-method filters, and visible escrow fields
The private contract APIs expose escrow addresses, release PSBTs, encrypted payment data, dispute states, and rating flows, which makes Peach look like an escrow-and-contract control plane behind the consumer UX rather than merely a chatty classified marketplace
The GitHub organization reinforces that broader infrastructure posture by exposing the mobile app, web app, API docs, API wrapper, batching software, and a Peach Improvement Proposals repo as first-party public surfaces
Whitepaper: No canonical standalone Peach Bitcoin whitepaper or litepaper surfaced in this pass. The clearest current sources of truth were the official website content repository, the official API docs, and the Peach GitHub organization; see ../whitepapers/peach-bitcoin-primary-sources-2026-05-03.md.