Geocodio vs RevAddress — The 2026 Price Increase and the CASS Gap

If you’ve been using Geocodio to clean or verify US addresses, two things happened in 2026 that are worth a second look.

First, on February 1, 2026, Geocodio doubled its pay-as-you-go price — from $0.50 to $1.00 per 1,000 lookups — and raised its Self-Service Unlimited plan from $1,000 to $1,350/month for new customers. If you were watching your bill, it moved.

Second — and this one predates the price change — Geocodio is not CASS certified. Geocodio says so itself. That’s fine if you’re plotting points on a map. It’s a real problem if you’re validating addresses for shipping or mail, where USPS deliverability (DPV) is the thing that actually matters.

This post is about that distinction: geocoding versus address validation. They look similar, they’re priced similarly, and teams reach for the wrong one all the time. Here’s where Geocodio genuinely wins, where it doesn’t, and what a USPS-native, flat-rate alternative looks like.

The trigger: the February 2026 price change

Geocodio’s pricing update took effect February 1, 2026. The headline numbers:

Geocodio still includes a generous 2,500 free lookups per day (~75,000/month), so low-volume geocoding can stay free. That’s real, and it’s worth saying plainly: if you’re doing a few thousand pure coordinate lookups a day, Geocodio is hard to beat on price.

The problem shows up at two edges. Above the free daily cap, pay-as-you-go now compounds at twice the old rate. And a mid-cycle doubling is itself a signal — usage-metered pricing is exposed to changes you don’t control, and “the API you budgeted for last quarter” isn’t necessarily the one you’re paying for this quarter.

The bigger issue: geocoding is not deliverability

This is the part that matters more than the price.

Geocodio is a geocoder. You send it an address, it returns latitude/longitude, a match accuracy score, and optional data appends (Census blocks, congressional districts, timezone, ACS demographics). It’s excellent at that.

It is not a CASS/DPV address validator. Geocodio does not carry USPS CASS certification, and its match is its own — not a USPS Delivery Point Validation. That means it won’t reliably tell you the things a shipping or mailing workflow needs to know:

• Is this a real, deliverable delivery point (DPV confirmed), or just a plausible-looking street that geocodes fine?
• Is the unit/apartment number valid, or missing (DPV secondary flags)?
• Is it a CMRA (commercial mail receiving agency), a vacant address, or no-stat?
• What’s the ZIP+4 and standardized USPS form the Postal Service will actually route on?

A coordinate on a map answers none of those. An address can geocode perfectly and still be undeliverable. If you’re printing labels, mailing checks, or gating checkout, geocoding accuracy is the wrong test — you want USPS DPV.

RevAddress validates directly against USPS’s own DPV data and returns the standardized, deliverable form — the authoritative deliverability answer, not a coordinate guess.

Pricing model: metered vs flat

Geocodio meters per lookup (with the free daily allowance). RevAddress is flat monthly, and cached repeat lookups don’t count at all.

The honest read: for high-volume pure geocoding, Geocodio’s metered model can come in cheaper than a flat plan. For address validation — where you’re re-checking the same mailing lists, gating a checkout, and you need a bill you can forecast — flat pricing plus free cached repeats wins, and the number doesn’t move on you mid-year.

Side-by-side code

The APIs tell the story. Geocodio hands you coordinates; RevAddress hands you deliverability.

curl "https://api.geocod.io/v1.7/geocode\
?q=1600+Pennsylvania+Ave+NW+Washington+DC\
&api_key=YOUR_KEY"

# Returns lat/lng + an accuracy score:
# {
#   "results": [{
#     "formatted_address": "1600 Pennsylvania Ave NW, Washington, DC 20500",
#     "location": { "lat": 38.897675, "lng": -77.036547 },
#     "accuracy": 1,
#     "accuracy_type": "rooftop"
#   }]
# }
# No DPV. No CMRA/vacant/no-stat. No deliverability verdict.

curl -X POST "https://api.revaddress.com/api/validate" \
-H "X-API-Key: rv_live_your_key" \
-H "Content-Type: application/json" \
-d '{
  "streetAddress": "1600 Pennsylvania Ave NW",
  "city": "Washington",
  "state": "DC"
}'

# Returns the USPS-standardized, deliverable form:
# {
#   "streetAddress": "1600 PENNSYLVANIA AVE NW",
#   "city": "WASHINGTON", "state": "DC",
#   "ZIPCode": "20500", "ZIPPlus4": "0003",
#   "dpvConfirmation": "Y",
#   "dpvCMRA": "N", "vacant": "N"
# }

RevAddress also accepts field-name aliases — street_address, address1, line1, zip, zip_code all work — and batch validation with fault isolation: one bad address never fails the whole batch.

curl -X POST "https://api.revaddress.com/api/batch/validate" \
-H "X-API-Key: rv_live_your_key" \
-H "Content-Type: application/json" \
-d '{"addresses": [
  {"streetAddress": "1600 Pennsylvania Ave NW", "city": "Washington", "state": "DC"},
  {"streetAddress": "350 Fifth Avenue", "city": "New York", "state": "NY"}
]}'

Feature comparison

When Geocodio is the right tool

Be fair: for a real set of jobs, Geocodio is a great choice, and you shouldn’t switch just because a comparison post exists.

• You need coordinates, not deliverability — mapping, spatial analysis, distance/routing, plotting customers.
• Data enrichment is the point — Census blocks, congressional districts, ACS demographics, timezone appends at scale.
• Bulk one-off geocoding of a large file where the 2,500/day free tier covers you.
• Permissive data-usage rights matter to your product — Geocodio is unusually liberal here.

If any of those is your job, Geocodio is well-built and worth keeping.

When RevAddress is the right tool

• You’re validating addresses for shipping, mail, or checkout and need USPS DPV deliverability, not a coordinate.
• You need the USPS-standardized form + ZIP+4 the Postal Service will actually route on.
• You want CMRA / vacant / no-stat flags to catch undeliverable or fraud-adjacent addresses.
• You re-validate the same lists repeatedly and want cached repeats to be free.
• You want a flat, forecastable bill that doesn’t double mid-year.

Migration checklist

Moving an address-validation workload off Geocodio takes about an afternoon.

1. Get a RevAddress key — free, 1,000 requests/mo, no card. Sign up.
2. Swap the request shape — Geocodio is a GET /geocode?q=…; RevAddress is a POST /api/validate with structured fields (streetAddress, city, state). Field aliases mean your existing address1/zip keys work as-is.
3. Read deliverability, not coordinates — replace your accuracy/location checks with dpvConfirmation, dpvCMRA, and vacant. This is the upgrade: you’re now testing deliverability, not map-match quality.
4. Move bulk jobs to batch — replace CSV uploads with POST /api/batch/validate. One bad row won’t fail the batch, and repeat addresses hit the 24-hour cache for free.
5. Keep Geocodio for what it’s good at — if you still need lat/lng or demographic appends, run it in parallel. This isn’t all-or-nothing; it’s using the right API for each job.

Full endpoint and field reference: API docs.

Proof points

• USPS-native validation — DPV deliverability against USPS’s own data, not a third-party map match.
• 466 tests passing, 53 route families, 60%+ USPS-independent serving.
• Flat pricing — $29 Starter / $79 Growth / $199 Pro, free 1,000 requests/mo. No per-lookup metering, no mid-year doubling.
• Batch with fault isolation — Promise.allSettled semantics; one failure never kills the batch.
• 24-hour cache — cleaning the same list twice costs nothing the second time.

The bottom line

Geocodio is a strong geocoder that got more expensive in February 2026 and was never a CASS/DPV address validator. If you need coordinates and data enrichment, it’s a fine tool — keep it. If you’ve been leaning on it to validate addresses for shipping or mail, you’ve been paying (now double) for a map match where you needed USPS deliverability. RevAddress gives you the DPV answer at a flat, predictable price.

For more on how metered address APIs compare, see Smarty vs RevAddress, Google Address Validation pricing, and Melissa’s per-lookup credit math.