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Vinkius
OpenAI Agents SDKSDK
OpenAI Agents SDK
ThirdWeb MCP Server

Bring Web3
to OpenAI Agents SDK

Learn how to connect ThirdWeb to OpenAI Agents SDK and start using 29 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.

MCP Inspector GDPR Free for Subscribers
Broadcast Solana TransactionComplete AuthCreate Solana WalletDeploy ContractExecute Solana SwapFetch With PaymentGet Payment RequirementsGet Solana BalanceGet Solana Swap QuoteGet Transaction StatusGet User DetailsGet Wallet MeInitiate AuthLink ProfileList Solana WalletsList TransactionsPregenerate WalletQuery EventsQuery TransactionsRead ContractSend Raw TransactionsSend Solana TokensSettle PaymentSign Solana MessageSign Solana TransactionSocial AuthUnlink ProfileVerify PaymentWrite Contract

Compatible with every major AI agent and IDE

ClaudeClaude
ChatGPTChatGPT
CursorCursor
GeminiGemini
WindsurfWindsurf
VS CodeVS Code
JetBrainsJetBrains
VercelVercel
+ other MCP clients
ThirdWeb

What is the ThirdWeb MCP Server?

Connect your ThirdWeb account to any AI agent to build and manage Web3 applications through natural language. This server provides a comprehensive suite of tools for blockchain interaction and identity management.

What you can do

  • Authentication & Identity — Handle email, SMS, social, and passkey logins. Link multiple social profiles to a single wallet address using initiate_auth and link_profile.
  • Wallet Management — Retrieve authenticated user details, search for users by address or email, and pre-generate wallets for new users via get_user_details and pregenerate_wallet.
  • Smart Contract Interaction — Execute read-only multicalls or state-changing transactions across any supported chain using read_contract and write_contract.
  • Event Monitoring — Query historical contract events with advanced filtering for data analysis using query_events.

How it works

  1. Subscribe to this server
  2. Provide your ThirdWeb Secret Key and API URL
  3. Start building Web3 workflows from your favorite MCP client

Who is this for?

  • Web3 Developers — Rapidly prototype contract interactions and test auth flows directly from the IDE.
  • DApp Operators — Manage user profiles and monitor contract events without custom scripts.
  • Product Managers — Query on-chain data and user details to understand platform activity.

Built-in capabilities (29)

broadcast_solana_transaction

Broadcast a transaction on Solana

complete_auth

Verify challenge and complete login

create_solana_wallet

Create a Solana wallet

deploy_contract

Deploy a contract using bytecode and ABI

execute_solana_swap

Execute a token swap on Solana Mainnet

fetch_with_payment

Proxy a request to a paid API using x402

get_payment_requirements

Generate payment requirements for a resource (x402)

get_solana_balance

Get Solana wallet balance

get_solana_swap_quote

Get a token swap quote on Solana Mainnet

get_transaction_status

Get status of a transaction

get_user_details

Search for users in your project

get_wallet_me

Retrieve details of the authenticated user

initiate_auth

Start authentication process for email, phone, passkey, or SIWE

link_profile

Tie multiple social identities to a single wallet address

list_solana_wallets

List Solana wallets

list_transactions

List transactions

pregenerate_wallet

Create a wallet for a user before they first log in

query_events

Fetch historical events for a contract

query_transactions

Fetch transaction history for a contract

read_contract

Execute one or more read-only calls (multicall)

send_raw_transactions

Broadcast encoded transactions

send_solana_tokens

Send Solana tokens

settle_payment

Submit the payment on-chain (x402)

sign_solana_message

Sign a message on Solana

sign_solana_transaction

Sign a transaction on Solana

social_auth

OAuth flow for social providers

unlink_profile

Unlink a social identity from a wallet address

verify_payment

Validate a signed payment payload (x402)

write_contract

Execute one or more state-changing calls atomically

Why OpenAI Agents SDK?

The OpenAI Agents SDK auto-discovers all 29 tools from ThirdWeb through native MCP integration. Build agents with built-in guardrails, tracing, and handoff patterns. chain multiple agents where one queries ThirdWeb, another analyzes results, and a third generates reports, all orchestrated through Vinkius.

  • Native MCP integration via MCPServerSse, pass the URL and the SDK auto-discovers all tools with full type safety

  • Built-in guardrails, tracing, and handoff patterns let you build production-grade agents without reinventing safety infrastructure

  • Lightweight and composable: chain multiple agents and MCP servers in a single pipeline with minimal boilerplate

  • First-party OpenAI support ensures optimal compatibility with GPT models for tool calling and structured output

O
See it in action

ThirdWeb in OpenAI Agents SDK

AI AgentVinkius
High Security·Kill Switch·Plug and Play
Why Vinkius

ThirdWeb and 4,000+ other MCP servers. One platform. One governance layer.

Teams that connect ThirdWeb to OpenAI Agents SDK through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.

4,000+MCP Servers ready
<40msCold start
60%Token savings
Raw MCP
Vinkius
Server catalogFind and host yourself4,000+ managed
InfrastructureSelf-hostedSandboxed V8 isolates
Credential handlingPlaintext in configVault + runtime injection
Data loss preventionNoneConfigurable DLP policies
Kill switchNoneGlobal instant shutdown
Financial circuit breakersNonePer-server limits + alerts
Audit trailNoneEd25519 signed logs
SIEM log streamingNoneSplunk, Datadog, Webhook
HoneytokensNoneCanary alerts on leak
Custom domainsNot applicableDNS challenge verified
GDPR complianceManual effortAutomated purge + export
Enterprise Security

Why teams choose Vinkius for ThirdWeb in OpenAI Agents SDK

The ThirdWeb MCP Server runs on Vinkius-managed infrastructure inside AWS — a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts. All 29 tools execute in hardened sandboxes optimized for native MCP execution.

Your AI agents in OpenAI Agents SDK only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.

ThirdWeb
Fully ManagedVinkius Servers
60%Token savings
High SecurityEnterprise-grade
IAMAccess control
EU AI ActCompliant
DLPData protection
V8 IsolateSandboxed
Ed25519Audit chain
<40msKill switch
Stream every event to Splunk, Datadog, or your own webhook in real-time

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

The Vinkius Advantage

How Vinkius secures ThirdWeb for OpenAI Agents SDK

Every tool call from OpenAI Agents SDK to the ThirdWeb MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.

< 40msCold start
Ed25519Signed audit chain
60%Token savings
FAQ

Frequently asked questions

01

Can I read data from a smart contract without paying gas?

Yes! Use the read_contract tool. It performs read-only calls (multicall) to the blockchain, which do not require gas or state changes.

02

How do I start an authentication flow for a new user?

You can use the initiate_auth tool by specifying the method (email, sms, etc.) and the user's identifier. Then, use complete_auth with the verification code to finish the login.

03

Can I find a user's profile if I only have their wallet address?

Absolutely. Use the get_user_details tool and provide the address parameter. The agent will return any associated user IDs, emails, or phone numbers linked to that wallet in your project.

04

How does the OpenAI Agents SDK connect to MCP?

Use MCPServerSse(url=...) to create a server connection. The SDK auto-discovers all tools and makes them available to your agent with full type information.

05

Can I use multiple MCP servers in one agent?

Yes. Pass a list of MCPServerSse instances to the agent constructor. The agent can use tools from all connected servers within a single run.

06

Does the SDK support streaming responses?

Yes. The SDK supports SSE and Streamable HTTP transports, both of which work natively with Vinkius.

07

MCPServerStreamableHttp not found

Ensure you have the latest version: pip install --upgrade openai-agents

08

Agent not calling tools

Make sure your prompt explicitly references the task the tools can help with.

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