An honest side-by-side look at ContractParser and Airparser — where each one is stronger, and which to pick based on what you actually need.
Airparser and ContractParser solve different problems.
Airparser is a general-purpose document parser built for continuous automation — invoices landing in an inbox, resumes dropped through a form, shipping confirmations forwarded to a mailbox. Monthly subscription, monthly credits, deep integration with Zapier, Make, n8n, and thousands of downstream apps.
ContractParser does one thing: take a pile of contracts, extract the fields you care about, return a spreadsheet. Pay-per-page. No subscription, no credit balance, no account required to start. The Verified tier audits every extracted field with narrative reasoning — not a confidence number.
If your job is ongoing document automation, Airparser is the better fit. If your job is “I have contracts and I need a spreadsheet by end of day,” ContractParser is built for that.
The biggest practical difference is the pricing model.
Airparser: monthly subscription with renewable credits that expire at month end. Plans start at $33/month (100 credits, billed annually) up to $249/month (5,000 credits). One credit = one email, document, or PDF page.
ContractParser: pay per page. $0.10/page Standard, $0.20/page Verified (includes the audit pass). No subscription. No monthly commitment. No expiring credits. $2.00 minimum per batch.
Subscriptions work when volume is steady. 500 pages every month like clockwork and Airparser's Growth plan lands around $0.10/page — competitive with our Standard rate.
Pay-per-page works when volume is uneven or project-based. One backlog of 300 contracts before a board meeting, then nothing for three months, makes a monthly subscription (and evaporating credits) worse than paying for exactly what you process.
Simple math: 200 pages processed once, then three months of silence.
| Approach | What you pay |
|---|---|
| Airparser Starter ($33/mo × 3 months) | $99 |
| ContractParser Standard (200 pages × $0.10) | $20 |
| ContractParser Verified (200 pages × $0.20) | $40 |
The logic reverses at high steady volume. A team parsing 2,000 pages a month every month puts Airparser's Business plan around $0.075/page — less than our Standard rate. Pick the model that matches the usage pattern.
Airparser's default is an inbox. You get a dedicated address like your-name@in.airparser.com, forward documents to it, and Airparser parses whatever lands there. Built for continuous ingestion — every new invoice, every new resume, every shipping notification. Manual upload exists, but isn't the primary shape.
ContractParser's default is a batch. Drag-drop a folder or a ZIP, pick the fields, download a CSV. Up to 1,000 documents per batch. No inbox to configure, no account required, nothing to sign up for. Built for someone with a stack of contracts right now who wants answers in one sitting.
These are different product shapes serving different users. An Airparser customer is usually a developer or ops person wiring automation. A ContractParser customer is usually an exec, legal ops lead, or procurement manager who needs a spreadsheet today.
Both tools use modern LLMs. On well-formatted contracts, extraction accuracy is comparable.
The difference is what happens when a field looks wrong.
Airparser returns structured JSON (or exports to Sheets, Airtable, etc.). It doesn't flag uncertain fields and doesn't re-check its own work.
ContractParser's Verified tier ($0.20/page) runs a second AI pass after the initial extraction. The second pass audits every field, catches contradictions between fields (a total that doesn't match unit price × quantity, dates that don't match the contract period, renewal terms that conflict with termination terms), and returns narrative reasoning explaining what it flagged and why.
A Verified flag looks like this:
totalValue calculation appears confused — mixes per-site, per-year, and portfolio figures inconsistently; $4,752/site/year × 4 sites × 10 years = $190,080, not $220,777.52.
For bulk data-entry automation across thousands of routine invoices, this audit is overkill. For contract review where a single wrong number matters, it's the point.
Airparser wins here. Zapier, Make, n8n, Google Sheets, Airtable, Excel, HubSpot, Google Drive, Slack, QuickBooks, plus thousands of apps via the automation platforms. They also offer a REST API and a hosted MCP server.
ContractParser currently imports directly from Salesforce (pick contracts from your Salesforce records and parse them in place) and exports CSV. Google Drive, OneDrive, Box, and Dropbox imports are planned. No public API or MCP server at launch — both are on the roadmap.
If you're wiring contract parsing into a larger automated pipeline, Airparser has more connectivity available today.
We built ContractParser because the batch, pay-per-page, UI-first shape fits one specific use case well: contract-focused work, one-time or project-based, where the user isn't a developer. We're not trying to replace Airparser at its core strength (ongoing automation at scale). If that's your job, they're good at it.