API wedge · Document-AI SaaS

Turn generated documents into real postal output.

PostBridge is the postal-output layer for Document-AI SaaS platforms that draft, classify, approve, or route documents but still need a safe way to send physical mail.

Request sandbox access Open developer hub See API packaging

Integration proof

Use API, MCP, GPT Actions, SDKs, x402, and UCAN from your automation layer. PostBridge keeps postal execution deterministic: quote-before-send, explicit confirmation, country/service rules from policy tables, and proof after dispatch.

postal-output layer for document generation and approval workflows.
quote-before-send safety for every paid/physical side effect.
proof retrieval for compliance, audit, and customer status flows.
agent-native integration through REST, MCP, GPT Actions, SDKs, x402, and UCAN.

First-send flow

The first integration milestone is deliberately small: request sandbox access, quote one approved document, confirm a first send, then decide whether self-serve pay-per-letter or Enterprise/API packaging fits.

POST /api/quote
POST /api/orders
GET /api/track/{id}
GET /api/proof/{id}

Hypothesis

Document-AI SaaS platforms need postal execution when their workflow ends in legal, finance, insurance, compliance, or operations mail.

Test design

Send 25 targeted platform prospects to this page and ask for 10 conversations about integration scope, proof/SLA needs, and sandbox activation.

Success threshold

At least one qualified sandbox request or integration conversation identifies repeat postal volume, workflow owner, country mix, and first-send timing.

Measurement: source → signup → first send → paid conversion. The wedge validates API/platform value before heavier automation or custom terms.