Abstract
Abstract API provides a suite of APIs for developers to automate various tasks, including data validation, enrichment, and more.
Verdict
Common use cases
- Clean email lists before campaign sends
- Verify customer payment IBANs at checkout
- Score sender reputation during triage
- Catch typos in form submissions instantly
- Assess deliverability before cold outreach
Integration
- Vendor
- Abstract
- Category
- developer-tools
- Auth
- API_KEY
- Tools
- 3
- Composio slug
abstract
Tools
- Email reputation
Tool to enrich an email address with reputation and risk scoring data. use when you need to assess an address's deliverability and risk before outreach. use after confirming your api key is valid.
- Email Validation
Tool to validate whether an email address is real and deliverable. use after collecting an email address to confirm deliverability.
- Validate IBAN
Tool to validate the format and country code of an iban number. use after collecting an iban to ensure it is correctly formatted.
Setup
Setup guide
- 11. Go to Abstract's dashboard and generate an API key under Settings > API Keys. 2. In Switchy, open your workspace settings and navigate to Integrations > Developer Tools. 3. Find Abstract in the list and click Connect. 4. Paste your API key into the prompt and click Authorize. 5. Switchy confirms the connection and shows Abstract's three tools as available. 6. Open any Space and type '@Abstract validate this email: test@example.com' to test the connection. 7. Abstract returns deliverability status and risk score within seconds. 8. To validate an IBAN, use '@Abstract check this IBAN: GB82WEST12345698765432' in the same way. 9. If the key is invalid, Switchy surfaces the error immediately — regenerate the key in Abstract's dashboard and reconnect.
What teammates see: by default, memories from Abstract are scoped to the Space (PROJECT visibility) - you can mark any memory PRIVATE or share it ORG-wide.
Works well with
Top models
Compatibility data appears once enough Spaces have used this MCP together with a given model.
How Switchy teams use it
Starter prompts
Validate Campaign List
@Abstract validate these emails and flag any with poor deliverability: [paste list]. Return a table with address, status, and risk score.Open in a Space →
Check IBAN Format
@Abstract validate this IBAN and tell me if the format is correct: [paste IBAN]. If invalid, explain what's wrong.Open in a Space →
Score Sender Reputation
@Abstract check the reputation of this sender: [paste email]. Give me a risk score and note any red flags.Open in a Space →
Verify Support Contact
@Abstract is this email deliverable: [paste email]. If not, suggest what might be wrong with the address.Open in a Space →
Bulk IBAN Check
@Abstract validate these IBANs and return a table with each number, country, and validity status: [paste list].Open in a Space →
Example outputs
Illustrative - representative of the model's voice and quality, not literal recordings.
@Abstract can you validate this email address before I add it to our outreach list: [email protected]
I've validated that email address through Abstract. The address is deliverable with a valid MX record and SMTP server response. The domain has been active since 2019 and shows normal sending patterns. The mailbox exists and can receive messages. You can safely add this to your outreach list.
This example shows Abstract's core email validation capability. The tool checks deliverability in real-time but doesn't guarantee future inbox placement—mailboxes can fill or be disabled after validation. Requires a valid API key with email validation permissions.
@Abstract I need a reputation check on [email protected] before we process their payment—can you assess the risk level?
I've run a reputation analysis on that email through Abstract. Risk score: 72/100 (medium-high risk). The address was created recently (3 weeks ago), uses a disposable email provider, and appears on two fraud watchlists. The domain has been flagged in 14 chargeback incidents. I'd recommend additional verification steps before processing payment from this address.
This demonstrates Abstract's email reputation scoring, which combines deliverability data with fraud signals. The risk score is interpretive—your team needs to define thresholds that match your risk tolerance. Reputation data reflects historical patterns but can't predict individual intent.
@Abstract we collected IBANs from 8 new EU vendors today—can you validate them and flag any formatting issues before I submit to accounting?
I've validated all 8 IBANs through Abstract. Seven are correctly formatted with valid country codes and check digits. One IBAN (vendor: Acme GmbH, DE89370400440532013000) failed validation—the check digit is incorrect, likely a transcription error. The other seven are: 3 from Germany, 2 from France, 1 from Netherlands, 1 from Spain—all structurally valid and ready for processing.
This shows Abstract's IBAN validation in a batch-like workflow. The tool verifies format and country code structure but doesn't confirm the account actually exists at a bank—it's a syntax check, not a funds verification. Useful for catching data entry errors before payment processing.
Use-case deep-dives
When Abstract wins for cleaning cold email lists before send
A 6-person sales team exports 400 leads from Apollo and needs to scrub bounces before their Mailgun campaign. Abstract's email validation MCP is the right call here because it runs inline during list prep—no CSV round-trips, no leaving the workspace. The reputation tool flags disposable domains and catch-alls that would tank sender score. This works when your list is under 1,000 contacts and you're validating once per campaign. If you're running daily enrichment on 10k+ leads, you need a batch API outside Switchy. For teams sending 2-5 campaigns a month with moderate list sizes, Abstract keeps your deliverability clean without adding another SaaS login.
When Abstract handles IBAN checks for European payment flows
A 3-person fintech support team onboards EU freelancers who submit bank details through Typeform. Abstract's IBAN validation MCP catches format errors before the payout run, saving a support ticket and a week of back-and-forth. This is the right tool when you're processing 20-50 IBANs a week and need instant feedback during onboarding calls or Slack threads. The MCP returns country code and format validity in under a second. It's not built for bulk reconciliation—if you're validating 500 IBANs nightly from a CSV, use a dedicated fintech API. For small teams doing manual payment setup with European contractors, Abstract prevents the most common data-entry mistakes without leaving your workspace.
When Abstract flags risky signups during live support escalations
A 4-person support team at a SaaS company sees a spike in chargebacks and needs to assess new signups flagged by Stripe Radar. Abstract's email reputation MCP runs during the Zendesk ticket review, surfacing disposable domains and known fraud patterns in real time. This works when you're triaging 10-20 escalations a day and need a quick risk signal without switching to a fraud dashboard. The reputation score helps decide whether to approve a refund or escalate to legal. If you're running automated fraud scoring on every signup, you need a webhook-driven solution, not an MCP. For small teams doing manual escalation triage, Abstract gives you the fraud signal at the moment you need it.
Frequently asked
What does the Abstract MCP do in Switchy?
The Abstract MCP validates email addresses and IBANs directly in your Switchy workspace. Your AI can check if an email is deliverable, score its reputation for outreach risk, and verify IBAN formatting before you send payments or add contacts to campaigns. It's useful for cleaning lists or vetting leads without leaving the conversation.
Do I need an Abstract account to use this MCP?
Yes. You need an Abstract API key, which means you need a paid or trial Abstract account. Paste the key into Switchy's connection settings. Abstract doesn't use OAuth, so there's no permission screen—just the key. If the key is invalid, the tools won't return data.
Can the Abstract MCP send emails or update contact records?
No. It only validates and scores data—it doesn't write anything back to Abstract or send messages. If you want to act on the validation results, you'll need a separate integration like Resend or your CRM's MCP to actually update records or trigger sends.
Why use this instead of Abstract's dashboard or API directly?
The MCP lets your AI validate emails mid-conversation without you switching tabs or writing code. If you're already in Switchy building a prospect list or reviewing signups, the AI can check deliverability inline. For bulk jobs or scheduled validation, Abstract's API or dashboard is still faster.
Does Abstract usage count against my Switchy plan limits?
No. Abstract charges per validation on their side; Switchy doesn't meter those calls. Your Switchy plan limits cover message volume and seats, not third-party API usage. Check Abstract's pricing to understand how many validations your key allows per month.