# Lookup for developers Better details. Better connections. Check email addresses and phone numbers before you reach out. [Get started](/dashboard/signup?returnTo=%2Fdashboard%2Fw%2Flookup) [Contact Sales](/demo?product=lookup) [Read customer stories](/customers) [Explore Enterprise](/enterprise) - [Airwallex](/customers/airwallex) - [Glovo](/customers/glovo) - [Zillow](/customers/zillow) - Uber - [Binance](/customers/binance) - Adobe - Meta - PayPal - Pinterest - Square - [Al Jazeera](/customers/aljazeera) - [Aramex](/customers/aramex) - [Bazaar Technologies](/customers/bazaar) - [ComparaOnline](/customers/compara) - [Emma](/customers/emma) ## Check the details. Make the connection. Read email and phone details before your next step. Use the same workflow from your agent, terminal or application. **MCP**: `Bird MCP` ```json https://mcp.bird.com ``` ## Catch the typo. Keep the customer. Check an address while the customer is still with you. Turn the answer into a useful next step. Harbor Create an account STEP 1 OF 2 ### Good things. In your inbox. Your order updates, saved favorites, and a little inspiration. Email address Did you mean gmail.com? A likely spelling mistake. Ask the customer which address they intended. Use aisha@gmail.com Offer a correction Email Lookup `200 OK` POST /v1/lookup/email `aisha@gmial.com` - Match the request Original address preserved Matched - Read the verdict result: "typo" Answered - Choose the next step Ask before changing the address ReadyDelivery confidence 24 / 100 Read alongside the verdict, not instead of it. `did_you_mean`aisha@gmail.com Inspect another result TypoNeutralRiskyUndeliverable A correction is a suggestion. The customer chooses. [Explore email lookup](/lookup-api/features/email) Illustrative product records. These controls change the example only; no request or purchase is made. ## A number tells you more. Know what to do with it. Add network signals to the base number record. Know how to contact or verify the customer next. Phone intelligence `Example lookup / Signup 1048` NL PHONE NUMBER ### +31 6 1234 5678 Mobile · Netherlands Serving network Vodafone Issuing network KPN Base flag `ported` KPN Vodafone The serving network differs from the issuing network. Returned properties One response, inspected by property Porting `ok`Move recorded · 3 Feb 2026 Presence `unavailable`No value returned SIM swap `inconclusive`No value returned Score `ok`82 / 100 Presence result ReachableUnreachableUnavailableInconclusive ### Keep moving with the facts you have Country, network and porting are answered. Presence is unknown; do not turn that missing signal into a negative result. Next: apply your verification policy [Read property responses](/docs/guides/lookup/phone-numbers#read-the-status-before-the-value) [Explore phone intelligence](/lookup-api/features/phone-number) Illustrative product records. These controls change the example only; no request or purchase is made. ## Explore Lookup. From address quality to network details. Choose the signals your application needs. [Lookup API Look up an email address or phone number before the next step.](#integrate)[Email validation Find address issues before attempting a send.](/lookup-api/features/email)[Phone number lookup Understand a number’s format, line type and network context.](/lookup-api/features/phone-number)[Line type Choose an appropriate next step for the type of number.](/docs/guides/lookup/phone-numbers#what-the-base-lookup-answers)[Carrier lookup Find the serving and issuing networks for a phone number.](/docs/guides/lookup/phone-numbers#what-the-base-lookup-answers)[Number porting Check whether a phone number has moved between networks.](/docs/guides/lookup/phone-numbers#add-properties)[Network presence Check the network-presence information available for a number.](/docs/guides/lookup/phone-numbers#add-properties)[Roaming Check the roaming information available for a number.](/docs/guides/lookup/phone-numbers#add-properties)[SIM swap Check for evidence of a recent SIM change.](/docs/guides/lookup/phone-numbers#add-properties)[Credibility score Add a phone credibility score to your own assessment.](/docs/guides/lookup/phone-numbers#add-properties) ## Scale without losing control. Organize teams in workspaces, control API access, and trace changes through audit logs. Harbor Organization Workspaces Production Sandbox ### Delivery agent API key · Customer operations team Active Permissions Access Email Read & write SMS Read & write WhatsApp Read Read & write AL Alex Lee Admin Permissions updated ### Audit log Production API key updated Alex Lee · 09:42:18 UTC Workspace Production Resource Delivery agent WhatsApp Read Read & write Succeeded [Workspaces](/docs/guides/workspaces)[Team roles](/docs/guides/users-teams-roles)[API authentication](/docs/guides/authentication) [Explore Enterprise](/enterprise) Examples: [MCP](/de-de/lookup-api.mcp.md) · [CLI](/de-de/lookup-api.cli.md) · [TypeScript](/de-de/lookup-api.ts.md) · [Python](/de-de/lookup-api.py.md) · [Go](/de-de/lookup-api.go.md) · [PHP](/de-de/lookup-api.php.md) · [cURL](/de-de/lookup-api.curl.md) ## Start with Lookup. Build across channels with Bird. [Get started](/dashboard/signup?returnTo=%2Fdashboard%2Fw%2Flookup) · [Contact Sales](/demo?product=lookup) [Email](/email-api) · [SMS](/sms-api) · [WhatsApp](/whatsapp-api) · [Apple Messages](/apple-messages-api) · [Voice](/voice-api) ## Related resources - [Phone number lookup: check a number before you send](/learn/lookup/phone-number-lookup-check-a-number-before-you-send) (video) - [Lookup overview](/docs/guides/lookup/overview) (docs) [Get an implementation brief](/learn/workspace?topic=lookup)