Stop wasting tokens on blind payments. Mycelium Finance has exposed a free get_mycelium_allocation tool through its Model Context Protocol (MCP) endpoint, allowing AI agents to inspect Solana strategy data before deciding whether a paid x402 response is worth the gas. This shift from opaque paid APIs to transparent, schema-first discovery is a win for builder efficiency.

The Free Read Before the Paid Write

The public endpoint at https://www.myceliumfinance.com/api/mcp supports the standard MCP handshake (initialize, notifications/initialized, tools/list). Once connected, an agent can invoke the free tool with a simple JSON-RPC body. The response isn't just a headline number; it delivers granular project-level USD amounts, percentages, and pool details including addresses, DEX identifiers, and pair tokens. The data refreshes every 60 seconds, carrying an updatedAt timestamp and a partial flag that clients must preserve to avoid assuming data completeness.

Real-World Data Inspection

During a live test on October 13, 2026, at 17:26:18 UTC, the endpoint returned a totalUsd of $33,455.19 across 10 allocation entries, with partial set to false. The breakdown revealed that the project KNOTS accounted for $7,505.33 (22.43% of the total), split across two Raydium pools paired with $ESF and $MYC. This pair-level visibility makes the project's migration from $ESF to $MYC pairs explicit in the data, eliminating the need for agents to infer trends from external charts.

x402 Integration and Cost Control

The same tools/list response advertises a separate get_mycelium_snapshot tool priced at $0.05 USDC via the x402 protocol, which bundles allocation and top-performer data. The source confirms the price was read from the live description, not from a paid call. For agents, the workflow is clear: inspect the free schema and data first, then evaluate if the bundled paid response adds sufficient value to justify the micro-transaction. Note that the allocation data arrives in the MCP result's content[0].text as JSON, requiring parsers to extract and retain metadata alongside derived values.

Key Takeaways

  • Mycelium Finance provides a free MCP tool for inspecting Solana allocation data before paying.
  • The free response includes granular pool details, timestamps, and completeness flags.
  • Paid x402 access for richer snapshots costs $0.05 USDC, per the live endpoint description.
  • Agents should parse content[0].text and preserve updatedAt and partial flags for accuracy.

The Bottom Line

Free, schema-first data access is the new baseline for agent-to-agent economy. By offering a zero-cost inspection layer, Mycelium lets builders verify data structure and relevance before incurring any x402 costs, effectively turning API discovery into a risk-free step.