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API Development MCP Servers for DeepSeek Harness

Building, testing and documenting APIs: specs, mock servers, contract checks. 609 API Development MCP servers on Mcprush that work with DeepSeek Harness.

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Verified publishers only Has a free tier No local install needed Answers through mcprush Tools declared Only what I saved Already in one of my lists

Pricing model

Free607 Subscription2

Runtime

Remote (hosted)154 Local (stdio)449 Remote or local6

Auth

OAuth 2.112 API key74 No auth523

609 MCP servers

Scanned where there is a package or repository to read — the grade is on each server's page

API DevelopmentWorks with DeepSeek Harness

Blobfish

swayam-mishra·API Development

Any OpenAPI spec. Zero config. Claude-ready. MCP server that turns any REST API into Claude-callable tools instantly.

Free

Cloudgate Workflow

cloudgate·API Development

Build and manage Cloudgate workflow-APIs: controllers, actions, workflow graphs, and databases.

Free

Dummyjson

pipeworx-io·API Development

DummyJSON MCP.

13 tools

Free

EchoRelay

echorelay·API Development

A managed runtime for custom API integrations. Manage lines, endpoints, keys, logs and DLQ via MCP.

Free

ETag shape

sadri-dridi·API Development

ETag shape

29 tools

Free

ETag shape, value discarded

sadri-dridi·API Development

ETag shape, value discarded

28 tools

Free

Fixzi — MCP & API Schema Drift Monitor

rohitcodilya·API Development

Monitor MCP servers, API contracts and AI outputs for schema drift. Alerts on breaking changes.

Free

GraphQL Rest Bridge

lazymac2x·API Development

Cloudflare Workers MCP server: graphql-rest-bridge

4 tools

Free

HTTP 400 bad-request

sadri-dridi·API Development

Meaning of HTTP 400.

1 tool

Free

HTTP 405 method-not-allowed

sadri-dridi·API Development

Meaning of HTTP 405.

1 tool

Free

HTTP 406 not-acceptable

sadri-dridi·API Development

Meaning of HTTP 406.

29 tools

Free

HTTP 409 conflict

sadri-dridi·API Development

Meaning of HTTP 409.

1 tool

Free

HTTP 413 payload-too-large

sadri-dridi·API Development

Meaning of HTTP 413.

29 tools

Free

HTTP 414 uri-too-long

sadri-dridi·API Development

Meaning of HTTP 414.

29 tools

Free

HTTP 415 unsupported-media

sadri-dridi·API Development

Meaning of HTTP 415.

1 tool

Free

HTTP 422 unprocessable

sadri-dridi·API Development

Meaning of HTTP 422.

1 tool

Free

HTTP 426 upgrade-required

sadri-dridi·API Development

Meaning of HTTP 426.

29 tools

Free

HTTP 507 insufficient-storage

sadri-dridi·API Development

Meaning of HTTP 507.

29 tools

Free

HTTP 511 network-auth

sadri-dridi·API Development

Meaning of HTTP 511.

29 tools

Free

Httpbin

pipeworx-io·API Development

httpbin MCP.

Free

Hubspot Dbv

edgethirteen·API Development

Free map of HubSpot legacy v1-v4 API operations to their date-based-versioning replacements.

Free

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