What is a same-day delivery API, and how do you integrate one?

Short answer. A same-day delivery API lets your app, online store or AI agent book a local courier in code: send a pickup and a drop-off to get a price and ETA, create the delivery, follow the driver through webhooks or live events, and read proof of delivery when it lands. RentADriver's REST API and MCP server do this in UK and US launch cities, and a sandbox key with simulated drivers is free.

rentadriver.ai

0:17

How it works

1. 01POST /v1/quotes (no key needed) → price, ETA, quote_id
2. 02POST /v1/deliveries with the quote_id
3. 03Follow delivery.* webhooks or the public tracking link
4. 04GET /v1/deliveries/{id}/proof after the drop-off

curl -X POST api.rentadriver.ai/v1/quotes \
  -d '{"pickup": {"address": "10 Downing St, London"},
       "dropoffs": [{"address": "British Museum"}],
       "items": [{"size_class": "M"}]}'

// 200 OK
{ "id": "406fc0a7…", "price": "29.40",
  "currency": "GBP", "duration_s": 848,
  "breakdown": { … } }

curl -X POST api.rentadriver.ai/v1/deliveries \
  -H "x-api-key: rd_live_…" \
  -d '{"quote_id": "406fc0a7…"}'

// 201 Created
{ "short_code": "RD-7K2P9QX",
  "status": "dispatching",
  "tracking_url":
    "rentadriver.ai/track/RD-7K2P9QX" }