Unclaimed listing
This entry was indexed from a public directory and hasn't been claimed by its maintainer yet. If you built this tool, you can claim your listing to set pricing and start receiving payouts.
Pricing
Per InvocationQuick Start
1. Listing not yet claimed — Purchases aren't available for unclaimed listings. If you maintain this tool, claim your listing to enable monetization.
2. Get your API key — After purchasing, go to your Consumer Dashboard to generate an API key.
3. Call the tool — The developer hosts this tool on their own server. Use your API key in the x-api-key header when calling their endpoint. SettleGrid handles metering and billing automatically.
# Replace with the developer's actual tool endpoint
curl -X POST https://developer-tool-server.com/api/langchain \
-H "x-api-key: sg_live_your_key_here" \
-H "Content-Type: application/json" \
-d '{"query": "your input here"}'Unclaimed listing
Purchases aren't available until the maintainer claims this listing.
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Frequently Asked Questions
How much does langchain cost?
langchain is currently free to use on SettleGrid. Pricing may change as the developer updates their configuration.
How do I call langchain from my AI agent?
Install the SettleGrid SDK with `npm install @settlegrid/mcp`, then wrap your handler: `const sg = settlegrid.init({ toolSlug: 'langchain', pricing: { defaultCostCents: 0 } })`. Use your API key in the `x-api-key` header when calling the tool endpoint. Full guide at settlegrid.ai/docs.
What payment methods does langchain accept?
SettleGrid's Smart Proxy brokers payments across 9 agent payment protocols (MCP, x402 from Coinbase/Linux Foundation, Stripe MPP pending GA, AP2 from Google, ACP from OpenAI, UCP from Google+Shopify, Visa TAP, Mastercard Verifiable Intent, and Circle Nanopayments) and has detection adapters for 2 more (L402 on Bitcoin Lightning and Skyfire's KYAPay). Additional rails are tracked as their specs mature. Consumers can fund credits via Stripe.
Is langchain free to try?
Yes, langchain is currently free to use with no per-call cost. You can start using it immediately by creating a SettleGrid account and generating an API key.
Who built langchain?
langchain was built by SettleGrid System. View their full profile and other tools at settlegrid.ai/dev/settlegrid-system.