Verified
Stripe's own integration playbook: pick the right API, set up Connect and billing, and handle keys and webhooks securely.
StripePaymentsSubscriptions
By use case
Top APIs & Integrations Skills
REST and GraphQL clients, OAuth flows, webhook receivers, third-party SaaS connectors, rate-limit and retry patterns.
17 skills indexed · ranked by composite score · updated August 18, 2026
Top 6 APIs & Integrations skills
- 1.stripe-best-practices—Stripe's own integration playbook: pick the right API, set up Connect and billing, and handle keys and webhooks securely.
Stripe's own integration playbook: pick the right API, set up Connect and billing, and handle keys and webhooks securely.
- 2.stripe-projects—Provision a Postgres, Redis, auth, or LLM provider through the Stripe Projects catalog rather than signing up by hand.
Provision a Postgres, Redis, auth, or LLM provider through the Stripe Projects catalog rather than signing up by hand.
- 3.resend—Resend's own API skill: send transactional and batch email, handle inbound webhooks, and manage domains, templates, and keys.
Resend's own API skill: send transactional and batch email, handle inbound webhooks, and manage domains, templates, and keys.
- 4.connect-recommend—The marketplace architecture decision, made with a compatibility matrix that blocks invalid Connect configurations instead of describing them.
The marketplace architecture decision, made with a compatibility matrix that blocks invalid Connect configurations instead of describing them.
- 5.stripe-directory—Find vendors and partners for a job-to-be-done — and, where supported, let the agent purchase and consume the service.
Find vendors and partners for a job-to-be-done — and, where supported, let the agent purchase and consume the service.
- 6.webhook-skills—Hookdeck's webhook playbook: 40 provider-specific skills covering signature verification, idempotency, and event handling — each with runnable examples.
Hookdeck's webhook playbook: 40 provider-specific skills covering signature verification, idempotency, and event handling — each with runnable examples.
About APIs & Integrations
The best agent skills for APIs and integrations in 2026 pair clean REST and GraphQL client patterns with OAuth 2.0/PKCE implementation, webhook signature verification with idempotency, and provider-specific Skills — Stripe for payments, Twilio for SMS, Hookdeck for 40-provider webhook flows, Composio for multi-app OAuth in a single skill — covering the full integration stack. API & integration Skills give agents the patterns needed to consume third-party APIs cleanly — REST, GraphQL, OAuth flows, webhook receivers, rate-limit handling, retry logic, and the SaaS-connector long tail. They turn "call this API" prompts into reliable, idempotent integration code.
Common workflows include building a REST client with retry and rate-limit awareness, implementing an OAuth flow (authorization code, PKCE, refresh tokens), writing a webhook receiver with signature verification and idempotency, integrating with a third-party SaaS (Slack, Salesforce, HubSpot, Notion), generating typed clients from OpenAPI specs, and reviewing integration code for retry safety and timeout handling. Several pair with the relevant SaaS MCP servers for live data.
Backend engineers, integration engineers, and full-stack developers wiring up the SaaS spider-web use these Skills heavily. Composite scoring weights install count, provenance, and how rigorously the Skill handles the gnarly parts: webhook idempotency, OAuth refresh, retry-with-backoff, rate-limit headers, and clear error surfacing.
Ranked by score
Best APIs & Integrations Skills
Skills that do apis & integrations well — ranked transparently.
Verified
Provision a Postgres, Redis, auth, or LLM provider through the Stripe Projects catalog rather than signing up by hand.
StripeProvisioningInfra
Verified
Resend's own API skill: send transactional and batch email, handle inbound webhooks, and manage domains, templates, and keys.
ResendEmailTransactional
Verified
The marketplace architecture decision, made with a compatibility matrix that blocks invalid Connect configurations instead of describing them.
Stripe ConnectMarketplacePayouts
Verified
Find vendors and partners for a job-to-be-done — and, where supported, let the agent purchase and consume the service.
StripeDiscoveryPayments
Verified
Hookdeck's webhook playbook: 40 provider-specific skills covering signature verification, idempotency, and event handling — each with runnable examples.
WebhooksSignature VerificationIdempotency
Verified
Composio's official skill for connecting agents to 1000+ external apps: auth configs, per-user connections, tool execution, and triggers.
ComposioTool RouterIntegrations
Verified
First-party HubSpot CRM operations for agents: lookups, deals, quote-to-cash, reporting.
HubSpotCRMSales Ops
9
VerifiedBox as an agent surface, plus the contract-review workflows nothing else in the catalog covers.
BoxContractsDocument Intake
Official
Drop-in WorkOS widgets with backend token wiring across every major framework.
WorkOSWidgetsAuth
Verified
Paddle's own integration playbook: ten skills for Checkout, webhooks, pricing pages, and subscription lifecycle on the merchant-of-record platform.
PaddleSubscriptionsMerchant of Record
13
VerifiedTwilio's official Developer Kit: 55 skills across SMS, WhatsApp, Voice, Verify, SendGrid, and compliance — plus the Twilio MCP. Public beta.
TwilioSMSWhatsAppVoice
Verified
Slack's own Block Kit skill — and the rare vendor skill that needs no token, because it validates against Slack's public API.
SlackBlock KitModals
Official
System design from requirements. APIs, data, boundaries, scale.
System DesignArchitectureAPI
Verified
The standalone FHIR skill: modeling, validation, SMART on FHIR — without the full healthcare plugin.
FHIRHealth DataStandards
Community
A HubSpot admin in a plugin: audits, dedup, scoring, lifecycle hygiene — 37 skills deep.
HubSpotRevOpsData Quality
FAQ
Frequently asked
REST or GraphQL?
Skills exist for both. REST clients dominate the long tail; GraphQL Skills tend to focus on Apollo or Relay patterns. Choose based on what the API offers.
How do these Skills handle OAuth?
The top Skills implement the full flow — authorization, code exchange, token refresh, secure storage — and handle the common errors (expired tokens, revoked grants, scope mismatch).
Are webhook idempotency patterns enforced?
Yes — the top Skills check event IDs against a processed set with database-level uniqueness, verify signatures before processing, and document the retry behavior.
Do these Skills support typed clients from OpenAPI?
Yes — several Skills run openapi-typescript or similar generators and produce a typed client wired into your existing HTTP layer.
How do they handle rate limits?
The top Skills read the Retry-After header, implement exponential backoff with jitter, and surface 429 errors clearly. Lower-ranked Skills retry blindly until success or timeout.
Which Skill should I use for which integration job?
Match the Skill to the shape of the integration. For a webhook receiver with provider-specific signature verification and idempotency, use Hookdeck's webhook-skills (40 providers, runnable examples). For SMS/WhatsApp/Voice and messaging compliance, use Twilio's official Developer Kit (public beta). For payments, use Stripe's own skills. To connect an agent to many third-party apps with per-user OAuth in one place, use Composio's Tool Router skill. A single deep integration beats a broad tool router; a multi-app agent is the reverse.
Go deeper
Guides and comparisons for APIs & Integrations
Ranked recommendations with the reasoning, per-agent compatibility cuts, and head-to-head verdicts.
- Top APIs & Integrations Skills for Cursor →
The 11 apis & integrations agent Skills with verified Cursor compatibility, ranked by composite score, with the install command for Cursor and what is not verified there yet.
- Top APIs & Integrations Skills for Codex →
The 6 apis & integrations agent Skills with verified Codex compatibility, ranked by composite score, with the install command for Codex and what is not verified there yet.
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