# walletlink.social > Resolve wallet addresses to the X and Farcaster accounts their owners published, and back again. Every match is labeled with the evidence behind it, attested or correlated, and every X handle carries a state saying whether it still reaches a person. Sold as one-time credit packs, metered only on matches, with a USDC rail that needs no account. Product overview at https://walletlink.social/llms.txt and full docs at https://docs.walletlink.social/llms-full.txt. - [walletlink.social](https://docs.walletlink.social/index.md): Resolve wallet addresses to the people behind them, in both directions. - [Quickstart](https://docs.walletlink.social/quickstart.md): From nothing to your first resolved wallet. - [Running a lookup](https://docs.walletlink.social/app/lookups.md): Getting addresses in, choosing how hard to look, and getting results back out. - [MCP server](https://docs.walletlink.social/mcp-server.md): Eight tools that let an agent resolve wallets to social identities, over the same API and the same balance. - [Agent pack (x402)](https://docs.walletlink.social/agent-pack.md): Buy match credits with USDC on Base. No account, no card, no email. - [Coverage](https://docs.walletlink.social/concepts/coverage.md): What fraction of a wallet list resolves, and what the number actually means. - [Scan depth](https://docs.walletlink.social/concepts/scan-depth.md): Fast reads the index. Deep asks every live source. Which one you want, and why. - [Data quality](https://docs.walletlink.social/concepts/data-quality.md): How matches are attested, what the quality score means, and when a record goes stale. - [Introduction](https://docs.walletlink.social/api-reference/introduction.md): Base URL, authentication, plans, and the conventions every endpoint follows. - [Rate limits](https://docs.walletlink.social/api-reference/rate-limits.md): Three windows, the headers that report them, and how to back off correctly. - [Errors](https://docs.walletlink.social/api-reference/errors.md): Error shape and every code the API returns. - [Look up a wallet](https://docs.walletlink.social/api-reference/wallet.md): GET /v1/wallet/{address} - [Batch lookup](https://docs.walletlink.social/api-reference/batch.md): POST /v1/batch - [Estimate](https://docs.walletlink.social/api-reference/estimate.md): POST /v1/estimate - [Async jobs](https://docs.walletlink.social/api-reference/jobs.md): POST /v1/jobs and GET /v1/jobs/{id} - [Reverse X lookup](https://docs.walletlink.social/api-reference/reverse-twitter.md): GET /v1/reverse/twitter/{handle} - [Reverse Farcaster lookup](https://docs.walletlink.social/api-reference/reverse-farcaster.md): GET /v1/reverse/farcaster/{username} - [Index stats](https://docs.walletlink.social/api-reference/stats.md): GET /v1/stats - [Usage](https://docs.walletlink.social/api-reference/usage.md): GET /v1/usage ## OpenAPI Specs - [openapi](/openapi.yaml)