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E

Efi

@codespar/mcp-efi · v0.2.2

🇧🇷 BrazilPaymentsAuth · OAuth2live18 tools3 env vars

Direct Pix via BCB, charges, and carnets. One of the first fintechs authorized as a PSP by the Brazilian Central Bank.

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MIT · runs locally or through the CodeSpar runtime

Limitations

  • The package manifest does not declare 2 of the 3 variables the code reads.
Package
@codespar/mcp-efi
Version
0.2.2
npm dist-tag
latest
Category
Payments
Auth
OAuth2
Country
🇧🇷 Brazil
License
MIT
Transport
stdio · streamable-http

Quickstart

Install, set the credentials, make the first call.

Pick your client. The server runs locally over stdio, or through the hosted runtime.

Add the server to your clientOne config entry. No build step, no SDK required.
Set the environment variables3 variables read by this server's code, listed below.
Restart and make the first callThe agent can call any of the 18 tools. Try create_cob first.
terminal
# Claude Code claude mcp add efi -e EFI_CLIENT_ID=… -e EFI_CLIENT_SECRET=… -e EFI_SANDBOX=… -- npx -y @codespar/mcp-efi@0.2.2 # then: /mcp to confirm the server is connected
Environment variables3 variables
EFI_CLIENT_IDRead by the code; the package manifest does not declare it.
EFI_CLIENT_SECRETAPI key for efirequiredsecret
EFI_SANDBOXRead by the code; the package manifest does not declare it.

Names read from the package code (@codespar/mcp-efi@0.2.2). Descriptions and flags come from its manifest. Self-hosted, you hold the credentials. On the CodeSpar runtime the credential you connect is stored encrypted (AES-256-GCM, key derived per organization), and the runtime adds it to the provider call itself; the agent never receives it.

First call democreate_cob

"Create an immediate Pix charge"

tools/callcreate_cobresult returned

Tools

What your agent can call.

18 tools, as the package's tools/list returns them.

create_cob

Create an immediate Pix charge (cobranca imediata)

get_cob

Get Pix charge details by txid

list_cobs

List Pix charges by date range

create_charge

Create a billing charge (boleto or credit card)

get_charge

Get charge details by ID

create_carnet

Create a carnet (payment booklet with multiple parcels)

get_pix_key

Get details of a registered Pix key

create_pix_evp

Create a random Pix key (EVP/alias)

create_cobv

Create a Pix due charge (cobranca com vencimento). If txid omitted, server-generated.

get_cobv

Get Pix due charge (cobv) details by txid

update_cobv

Update an existing Pix due charge (cobv) by txid

create_devolucao

Request a Pix devolution (refund) on a received Pix transaction

Names and descriptions come from the package's tools/list (@codespar/mcp-efi@0.2.2). A kind (read, write, delete) is shown only when the package annotates its tools or each tool was verified one by one; neither exists for this server yet.

Compatibility

MCP is a protocol. Any client that speaks it can mount this server.

Through the CodeSpar runtime, codespar_discover finds this server's tools, and a tools/call runs with the credential connected in your project, a test key included.

hostedhttps://connect.codespar.dev/mcp15 meta-tools

Protocol

Any MCP client

stdio · streamable-http

Questions

Before you install.

How do I install the Efi MCP server?

Run npx -y @codespar/mcp-efi@0.2.2 and add the config block above to your MCP client: Claude Code, Cursor, Claude Desktop, VS Code, or any MCP-compatible client. No build step, no SDK required. Prefer hosted? Add the CodeSpar endpoint with a test key and connect Efi in your project; codespar_discover finds its tools.

What can my agent do with Efi?

Efi exposes 18 tools for payments. Your agent calls them directly; the full list is above.

How does Efi authenticate, and how are credentials stored?

Efi uses OAuth2. Self-hosted, you hold the credentials: the server reads them from its environment variables. On the CodeSpar runtime the credential you connect is stored encrypted for your organization, and the runtime adds it to each provider call, so the agent never handles it.

How does Efi handle upstream API changes?

Every server is versioned independently on npm. The command on this page pins 0.2.2, the version whose tools are listed here; your agent keeps running it until you change the version.

Is Efi open source? How do I report a bug?

Yes. Efi is MIT-licensed and published on npm as @codespar/mcp-efi, source on GitHub (link in the Details panel). Report issues on the package repository; security issues go to security@codespar.dev, and we respond within 24 hours.

Start in seconds.

On the CodeSpar runtime, the credential you connect stays encrypted for your organization and the runtime adds it to each call. You just call the tool.

Start in seconds demo
Create an account and copy a test key.
Add the hosted endpoint to your client with the config above.
Connect Efi in your project and ask your agent for the first call.
Efi — MCP server · 18 tools | CodeSpar