Stannp Direct Mail API
REST API for programmatically sending physical letters and postcards, managing recipient groups, configuring campaigns, triggering individual mail pieces, and tracking delivery status through webhooks and event callbacks.
Documentation
Specifications
OpenAPI
https://www.stannp.com/us/direct-mail-api
OpenAPI
https://raw.githubusercontent.com/api-evangelist/stannp/refs/heads/main/openapi/stannp-direct-mail-api-openapi.yml
Schemas & Data
JSONSchema
https://raw.githubusercontent.com/api-evangelist/stannp/refs/heads/main/json-schema/recipient.json
JSONSchema
https://raw.githubusercontent.com/api-evangelist/stannp/refs/heads/main/json-schema/mailpiece.json
JSONSchema
https://raw.githubusercontent.com/api-evangelist/stannp/refs/heads/main/json-schema/campaign.json
Other Resources
Vocabulary
https://raw.githubusercontent.com/api-evangelist/stannp/refs/heads/main/vocabulary/stannp-vocabulary.yml
JSONLDContext
https://raw.githubusercontent.com/api-evangelist/stannp/refs/heads/main/json-ld/stannp-context.jsonld
APIsJSON
https://raw.githubusercontent.com/api-evangelist/stannp/refs/heads/main/apis.yml